Mercer Island, Washington, United States of America: What to pack, what to wear, and when to go [2024]

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Ready to pack for Mercer Island, Washington, United States of America? If you're planning to go to Mercer Island, the following is some important information about when to go, what to wear, and what to pack.

Contents

When to go to Mercer Island, Washington, United States of America

Based on the climate and weather in Mercer Island, Washington, United States of America, the best time to go is July. See below for details.

What to wear/what to pack for Mercer Island, Washington, United States of America

Already know when you're traveling?

Here are some general tips on what to wear in Mercer Island, as well as several items to remember to pack when traveling there.

What to wear/what to pack for Mercer Island, Washington, United States of America by month

January

January in Mercer Island can be brisk and very rainy. The average overnight temperatures in the area are in the high 30s F (single digits C). It tends to rain about half of the time.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

  • Voice and data SIM card

    A SIM card that works in Mercer Island. A good global SIM card works in most countries, but check the country list before buying.

  • AirTag to track your luggage

    With airlines always losing luggage nowadays, an AirTag can locate it anywhere on earth: AirTag for iPhones.

  • Anti-theft backpack

    For a bit of protection, an anti-theft backpack protects your stuff.

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

Comfort + Essentials

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Travel neck pillow

    A great choice is this one

  • Luggage scale to avoid fees

    Airlines charge huge penalties for overweight luggage. Save money with this

  • Power bank for devices

    A portable power bank, like this one

  • Travel voltage adapter

    A plug adapter that supports outlet types A and B. Take care to find the right type. Many adapters for sale now are simply plugs and require your electronics to change the voltage themselves. If yours can't do that they could burn up. This one should be sufficient for most places.

February

February in Mercer Island can be very chilly and somewhat rainy. The average overnight temperatures in the area are in the high 30s F (single digits C). It tends to rain about half of the time.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

  • Anti-theft backpack

    For a bit of protection, an anti-theft backpack protects your belongings.

  • AirTag to track your luggage

    With airports constantly losing bags nowadays, an AirTag can find it anywhere anywhere: AirTag for iPhones.

  • Voice and data SIM card

    A SIM card that works in Mercer Island. A good global SIM card works in most countries, but check the country list before buying.

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

Comfort + Essentials

  • Travel voltage adapter

    A plug adapter that supports outlet types A and B. Take care to find the correct kind. The majority of adapters currently sold are simply plugs and expect your electronics to change the voltage themselves. If your electronics can't do that they could get destroyed. This one should work in most countries.

  • Luggage scale to avoid fees

    Airlines charge large prices for overweight luggage. Avoid penalties with this

  • Travel neck pillow

    Our favorite is this one

  • Power bank for devices

    A portable power bank, like this one

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

March

In March, Mercer Island can be brisk and very rainy. Temperatures routinely are in the 50s F (low 10s C) and occasionally jump into the low 60s F (mid 10s C) range. At night, lows are in the high 30s F (single digits C). During your visit, you can expect a dusting of snow. This is also a rainy time for Mercer Island, with more than half of the days of the month having rain.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

  • AirTag to track your luggage

    With airlines constantly losing bags nowadays, an AirTag can help you find it anywhere on earth: AirTag for iPhones.

  • Voice and data SIM card

    A SIM card that works in Mercer Island. A good global SIM card works in most countries, but check the country list before buying.

  • Anti-theft backpack

    For a bit of protection, an anti-theft backpack protects your things.

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

Comfort + Essentials

  • Power bank for devices

    A portable power bank, like this one

  • Travel neck pillow

    An excellent option is this one

  • Travel voltage adapter

    A plug adapter that supports outlet types A and B. It's important that you pick the right kind. The majority of adapters for sale now are simply plug changers and expect your devices to adjust the voltage themselves. If your devices can't do that they could get fried. This one should be sufficient for most locations.

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Luggage scale to avoid fees

    Airlines charge large penalties for overweight luggage. Avoid surcharges with this

April

If you are traveling to Mercer Island in April, you will notice that it is cool and somewhat rainy. Expect it to rain about half of the time. Daytime temperatures are in the high 50s F (mid 10s C).

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

  • Anti-theft backpack

    For a little peace of mind, an anti-theft backpack protects your things.

  • Voice and data SIM card

    A SIM card that works in Mercer Island. A good global SIM card works in most countries, but check the country list before buying.

  • AirTag to track your luggage

    With airports repeatedly losing bags nowadays, an AirTag can help you locate it anywhere on earth: AirTag for iPhones.

Comfort + Essentials

  • Travel pillow

    A good option is this one

  • Luggage scale to avoid fees

    Airlines charge huge prices for overweight luggage. Save money with this

  • Power bank for devices

    A portable power bank, like this one

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Voltage adapter

    A plug adapter that supports outlet types A and B. Ensure that you pick the correct type. A lot of adapters currently being sold are just plugs and require your devices to convert the voltage themselves. If your electronics can't do that they could get fried. This one should work in most locations.

May

In May, Mercer Island is cool and somewhat rainy. Temperatures routinely are in the 60s F (high 10s C) and a bit less than half of the time jump into the low 70s F (low 20s C) range. At night, lows are in the high 40s F (single digits C). This is also a rainy time for Mercer Island, with several of the days of the month having rain.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

  • Voice and data SIM card

    A SIM card that works in Mercer Island. A good global SIM card works in most countries, but check the country list before buying.

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

  • AirTag to track your luggage

    With airlines constantly losing luggage recently, an AirTag can help you find it anywhere on earth: AirTag for iPhones.

  • Anti-theft backpack

    For a little peace of mind, an anti-theft backpack protects your belongings.

Comfort + Essentials

  • Power bank for devices

    A portable power bank, like this one

  • Travel neck pillow

    Our favorite is this one

  • Voltage adapter

    A plug adapter that supports outlet types A and B. Check that you pick the right type. Many adapters currently available are simply plug changers and expect your devices to convert the voltage themselves. If yours can't do that they could get destroyed. This one should be sufficient for most countries.

  • Luggage scale to avoid fees

    Airlines charge large penalties for overweight luggage. Avoid surcharges with this

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

June

If you vacation in Mercer Island during June, you will probably notice that it is mild. Temperatures tend to hover around the low 60s F (low 20s C) during the day, while at night they can dip into the low 50s F (low 10s C). In terms of precipitation, you can expect it to rain about a third of the time.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

  • Anti-theft backpack

    For a bit of protection, an anti-theft backpack protects your things.

  • AirTag to track your luggage

    With airports always losing things nowadays, an AirTag can locate it anywhere on earth: AirTag for iPhones.

  • Voice and data SIM card

    A SIM card that works in Mercer Island. A good global SIM card works in most countries, but check the country list before buying.

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

Comfort + Essentials

  • Travel adapter

    A plug adapter that supports outlet types A and B. Ensure that you choose the correct kind. Most adapters currently being sold are just plugs and require your electronics to convert the voltage themselves. If your electronics can't do that they could burn up. This one should be appropriate for most locations.

  • Travel neck pillow

    A versatile choice is this one

  • Luggage scale to avoid fees

    Airlines charge huge prices for overweight luggage. Avoid surcharges with this

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Power bank for devices

    A portable power bank, like this one

July

If you vacation in Mercer Island during July, you might find that it is warm. Temperatures tend to hover around the 70s F (mid 20s C) during the day, while at night they can dip into the 50s F (low 10s C). In terms of precipitation, you can expect it to rain once in a while.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

  • Anti-theft backpack

    For a little peace of mind, an anti-theft backpack protects your things.

  • Voice and data SIM card

    A SIM card that works in Mercer Island. A good global SIM card works in most countries, but check the country list before buying.

  • AirTag to track your luggage

    With airlines repeatedly losing bags nowadays, an AirTag can help you locate it anywhere anywhere: AirTag for iPhones.

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

Comfort + Essentials

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Travel neck pillow

    A top rated pillow is this one

  • Power bank for devices

    A portable power bank, like this one

  • Voltage adapter

    A plug adapter that supports outlet types A and B. Ensure that you find the correct type. Many adapters currently available are just plug changers and expect your devices to adjust the voltage themselves. If your devices can't do that they could get fried. This one should be appropriate for most countries.

  • Luggage scale to avoid fees

    Airlines charge large amounts for overweight luggage. Avoid surcharges with this

August

August for Mercer Island is a perfect temperature. Temperatures average in the 70s F (mid 20s C) during the day. It rains once in a while.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

  • AirTag to track your luggage

    With airports repeatedly losing luggage recently, an AirTag can help you find it anywhere anywhere: AirTag for iPhones.

  • Anti-theft backpack

    For a little peace of mind, an anti-theft backpack protects your things.

  • Voice and data SIM card

    A SIM card that works in Mercer Island. A good global SIM card works in most countries, but check the country list before buying.

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

Comfort + Essentials

  • Travel pillow

    What we like is this one

  • Travel adapter

    A plug adapter that supports outlet types A and B. Make sure to pick the necessary kind. The majority of adapters that you can buy are just plugs and expect your devices to convert the voltage themselves. If yours can't do that they could get destroyed. This one should be sufficient for most locations.

  • Power bank for devices

    A portable power bank, like this one

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Luggage scale to avoid fees

    Airlines charge huge amounts for overweight luggage. Avoid penalties with this

September

September in Mercer Island is mild. The rain can amount to several inches/centimeters. During this time, temperatures average in the low 70s F (low 20s C), although night temperatures can dip into the low 50s F (single digits C).

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

  • Anti-theft backpack

    For a little protection, an anti-theft backpack protects your things.

  • Voice and data SIM card

    A SIM card that works in Mercer Island. A good global SIM card works in most countries, but check the country list before buying.

  • AirTag to track your luggage

    With airports always losing luggage these days, an AirTag can find it anywhere anywhere: AirTag for iPhones.

Comfort + Essentials

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Power bank for devices

    A portable power bank, like this one

  • Travel neck pillow

    Our fave is this one

  • Travel adapter

    A plug adapter that supports outlet types A and B. Take care to find the correct type. A lot of adapters currently available are just plugs and expect your electronics to convert the voltage themselves. If your electronics can't do that they could get destroyed. This one works in most countries.

  • Luggage scale to avoid fees

    Airlines charge excessive prices for overweight luggage. Avoid penalties with this

October

If you go to Mercer Island in October, you will notice that it is crisp and somewhat rainy. Expect it to rain 5-10 days this month. Daytime temperatures are in the low 50s F (mid 10s C).

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

  • AirTag to track your luggage

    With airlines constantly losing luggage these days, an AirTag can help you locate it anywhere anywhere: AirTag for iPhones.

  • Voice and data SIM card

    A SIM card that works in Mercer Island. A good global SIM card works in most countries, but check the country list before buying.

  • Anti-theft backpack

    For a bit of peace of mind, an anti-theft backpack protects your stuff.

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

Comfort + Essentials

  • Power bank for devices

    A portable power bank, like this one

  • Travel neck support pillow

    What we like is this one

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Voltage adapter

    A plug adapter that supports outlet types A and B. It's important that you pick the correct type. The vast majority of adapters for sale now are simply plugs and require your electronics to change the voltage themselves. If yours can't do that they could get destroyed. This one should be appropriate for most places.

  • Luggage scale to avoid fees

    Airlines charge large prices for overweight luggage. Avoid penalties with this

November

If you visit Mercer Island during November, you are likely to see that it can be brisk and very rainy. Temperatures tend to hover around the low 50s F (low 10s C) during the day, while at night they can dip into the low 40s F (single digits C). In terms of precipitation, you can expect it to rain about half of the time.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

  • AirTag to track your luggage

    With airports always losing things nowadays, an AirTag can locate it anywhere on earth: AirTag for iPhones.

  • Anti-theft backpack

    For a bit of protection, an anti-theft backpack protects your things.

  • Voice and data SIM card

    A SIM card that works in Mercer Island. A good global SIM card works in most countries, but check the country list before buying.

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

Comfort + Essentials

  • Power bank for devices

    A portable power bank, like this one

  • Luggage scale to avoid fees

    Airlines charge huge penalties for overweight luggage. Avoid penalties with this

  • Voltage step down adapter

    A plug adapter that supports outlet types A and B. Make sure to find the necessary kind. Many adapters currently available are simply plugs and require your electronics to convert the voltage themselves. If yours can't do that they could get fried. This one should be appropriate for most locations.

  • Travel pillow

    A top rated pillow is this one

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

December

December in Mercer Island is brisk and very rainy. The average overnight temperatures in the area are in the 30s F (single digits C). It tends to rain about half of the time.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

  • Anti-theft backpack

    For a little protection, an anti-theft backpack protects your things.

  • AirTag to track your luggage

    With airlines always losing bags nowadays, an AirTag can find it anywhere anywhere: AirTag for iPhones.

  • Voice and data SIM card

    A SIM card that works in Mercer Island. A good global SIM card works in most countries, but check the country list before buying.

Comfort + Essentials

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Power bank for devices

    A portable power bank, like this one

  • Travel neck pillow

    A versatile choice is this one

  • Luggage scale to avoid fees

    Airlines charge excessive prices for overweight luggage. Avoid surcharges with this

  • Travel adapter

    A plug adapter that supports outlet types A and B. Be careful to choose the necessary type. A lot of adapters that you can buy are just plugs and expect your devices to change the voltage themselves. If yours can't do that they could get fried. This one should work in most places.

What to do in Mercer Island, Washington, United States of America

Mercer Island, Washington is a beautiful and tranquil city located in King County, just minutes away from Seattle. Mercer Island offers a perfect mix of urban and suburban life, providing visitors with a peaceful escape from the hustle and bustle of the city.

Here are the top tourist attractions in Mercer Island you shouldn’t miss:

1. Luther Burbank Park: Luther Burbank Park is a well-manicured park that offers a wide range of outdoor activities, including hiking trails, boat launches, picnic areas, playgrounds, and a swimming beach. The park sits on 77 acres of land and offers breathtaking views of Lake Washington.

2. Mercer Island Farmers Market: The Mercer Island Farmers Market is a great way to experience the local culture of Mercer Island. The market takes place every Sunday, providing visitors with fresh produce, handmade crafts, and delicious food from local vendors. With live music and a beautiful atmosphere, the Mercer Island Farmers Market is a must-visit attraction.

3. Mercer Island Art Gallery: The Mercer Island Art Gallery showcases work from some of the most talented artists in the Pacific Northwest. The gallery features a variety of mediums, including paintings, sculptures, ceramics, and photography. If you’re an art lover, you won’t want to miss this breathtaking gallery.

4. Mercer Island History Museum: The Mercer Island History Museum is the perfect place to learn about the fascinating history of Mercer Island. The museum features exhibits on the island’s early settlers, local businesses, and notable landmarks.

5. Pioneer Park: Pioneer Park is a nature lover’s paradise. The park covers 113 acres of wooded trails, streams, and stunning views of Lake Washington. It’s a great place to hike, bike, and picnic.

6. Mercerdale Park: Mercerdale Park is a beautiful and spacious park located in the heart of Mercer Island. The park offers a playground, picnic areas, and sports fields. It’s a great place to bring the family for a day of fun and relaxation.

7. Mercer Island Community and Event Center: The Mercer Island Community and Event Center is a state-of-the-art facility that offers a wide range of activities and programs for people of all ages. From fitness classes to art workshops, there’s something for everyone at this amazing community center.

8. Luther Burbank Amphitheatre: The Luther Burbank Amphitheatre is the perfect outdoor venue to enjoy live music and theater performances. It features a large stage, seating for over 1,000 people, and breathtaking views of Lake Washington.

Mercer Island, Washington may be a small city, but it’s packed with plenty of fun and exciting things to do. Whether you’re a nature lover, art enthusiast, or history buff, there’s something for everyone in Mercer Island. So, book your trip today and experience the beauty and tranquility of Mercer Island for yourself!

About your travel guide

Hi! I'm Dev. I've traveled all over the world and in my travels, I have made many packing lists. In this series, my team and I have compiled the most useful information, as well as things we couldn't live without, to help you plan your trip.

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