Contra Costa County, California, United States of America: What to pack, what to wear, and when to go [2024]

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

Contents

When to go to Contra Costa County, California, United States of America

Based on the climate and weather in Contra Costa County, California, United States of America, the best time to go is August. See below for details.

What to wear/what to pack for Contra Costa County, California, United States of America

Already know when you're traveling?

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

What to wear/what to pack for Contra Costa County, California, United States of America by month

January

If you go to Contra Costa County in January, you will notice that it can be chilly. Expect it to rain regularly. Daytime temperatures are in the 50s F (low 10s C).

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.

  • Money/passport pouch

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

  • AirTag to track your luggage

    With airports constantly losing bags recently, an AirTag can help you find it anywhere in the world: AirTag for iPhones.

  • Voice and data SIM card

    A SIM card that works in Contra Costa County. A good global SIM card works in most countries, but check the country list before buying.

Comfort + Essentials

  • Travel neck support pillow

    An excellent option 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

  • Travel adapter

    A plug adapter that supports outlet types A and B. Check that you find the correct type. A lot of adapters currently sold are simply plugs and require 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 locations.

  • Luggage scale to avoid fees

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

February

February in Contra Costa County is chilly. The rain can amount to several inches/centimeters. During this time, temperatures average in the high 50s F (mid 10s C), although night temperatures can dip into the low 40s F (single digits C).

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

  • Voice and data SIM card

    A SIM card that works in Contra Costa County. 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 things these days, an AirTag can help you locate it anywhere on earth: AirTag for iPhones.

  • Anti-theft backpack

    For a little 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

  • Travel neck support pillow

    A top rated pillow is this one

  • Luggage scale to avoid fees

    Airlines charge excessive amounts 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. It's important that you choose the necessary kind. A lot 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 works in most places.

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

March

March in Contra Costa County is cool. The average overnight temperatures in the area are in the 40s F (single digits C).

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

  • AirTag to track your luggage

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

  • Voice and data SIM card

    A SIM card that works in Contra Costa County. A good global SIM card works in most countries, but check the country list before buying.

  • Anti-theft backpack

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

  • Money/passport pouch

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

Comfort + Essentials

  • Luggage scale to avoid fees

    Airlines charge large amounts for overweight luggage. Save money with this

  • Travel voltage adapter

    A plug adapter that supports outlet types A and B. Be sure to get the right type. The vast majority of adapters available are just plug changers and expect your electronics to change the voltage themselves. If yours can't do that they could get fried. This one should be appropriate for most places.

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Travel pillow

    An excellent option is this one

  • Power bank for devices

    A portable power bank, like this one

April

April for Contra Costa County is crisp. Temperatures average in the low 60s F (high 10s C) during the day. It rains occasionally.

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 bit of peace of mind, an anti-theft backpack protects your belongings.

  • AirTag to track your luggage

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

  • Voice and data SIM card

    A SIM card that works in Contra Costa County. A good global SIM card works in most countries, but check the country list before buying.

Comfort + Essentials

  • Power bank for devices

    A portable power bank, like this one

  • Voltage step down adapter

    A plug adapter that supports outlet types A and B. Be sure to get the necessary kind. A lot of adapters currently sold are just plug changers and expect your devices to change the voltage themselves. If yours can't do that they could get destroyed. 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 excessive amounts for overweight luggage. Save money with this

  • Travel neck pillow

    A good option is this one

May

May for Contra Costa County is balmy and dry with little rain. Temperatures average in the 60s F (high 10s C) during the day.

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 Contra Costa County. 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 things nowadays, an AirTag can help you find it anywhere on earth: 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 pillow

    An excellent option is this one

  • Power bank for devices

    A portable power bank, like this one

  • Luggage scale to avoid fees

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

  • Voltage adapter

    A plug adapter that supports outlet types A and B. It's important that you choose the correct type. A lot 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 burn up. This one should be sufficient for most locations.

June

June in this region is mild and very dry with almost no rain. Temperatures average in the low 60s F (low 20s C) during the day.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

  • AirTag to track your luggage

    With airlines always losing luggage these days, an AirTag can help you locate it anywhere in the world: AirTag for iPhones.

  • Anti-theft backpack

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

  • Voice and data SIM card

    A SIM card that works in Contra Costa County. 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

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Travel neck support pillow

    Our fave is this one

  • Travel voltage adapter

    A plug adapter that supports outlet types A and B. It's important that you choose the right type. Most adapters that you can buy are just plugs and require your electronics to convert the voltage themselves. If your devices can't do that they could get fried. This one works in most places.

  • Luggage scale to avoid fees

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

  • Power bank for devices

    A portable power bank, like this one

July

If you vacation in Contra Costa County during July, you might notice that it is mild and very dry with almost no rain. Temperatures tend to hover around the low 60s F (low 20s C) during the day, while at night they can dip into the 50s F (low 10s C).

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

  • AirTag to track your luggage

    With airlines constantly losing bags recently, an AirTag can locate it anywhere in the world: AirTag for iPhones.

  • Anti-theft backpack

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

  • Voice and data SIM card

    A SIM card that works in Contra Costa County. 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

  • Travel neck pillow

    Our fave is this one

  • Travel adapter

    A plug adapter that supports outlet types A and B. Ensure that you get the necessary kind. Many adapters currently available are just plug changers and require your devices to adjust the voltage themselves. If yours can't do that they could get destroyed. This one should work in most areas.

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Luggage scale to avoid fees

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

August

If you go to Contra Costa County in August, you will notice that it is mild and very dry with almost no rain. Daytime temperatures are in the low 70s F (low 20s 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 belongings.

  • AirTag to track your luggage

    With airports frequently losing things these days, an AirTag can find it anywhere on earth: AirTag for iPhones.

  • Voice and data SIM card

    A SIM card that works in Contra Costa County. 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

  • Travel pillow

    What we like is this one

  • Voltage step down adapter

    A plug adapter that supports outlet types A and B. Be sure to choose the necessary type. The majority of adapters currently being sold are just plug changers and require your electronics to change the voltage themselves. If your electronics can't do that they could get destroyed. This one is sufficent for most locations.

  • Power bank for devices

    A portable power bank, like this one

  • Luggage scale to avoid fees

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

September

If you go to Contra Costa County in September, you will notice that it is mild and very dry with almost no rain. Daytime temperatures are in the low 70s F (low 20s C).

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

  • AirTag to track your luggage

    With airports frequently losing things recently, an AirTag can help you locate it anywhere on earth: AirTag for iPhones.

  • Anti-theft backpack

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

  • Voice and data SIM card

    A SIM card that works in Contra Costa County. 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

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Luggage scale to avoid fees

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

  • Plug adapter

    A plug adapter that supports outlet types A and B. Take care to pick the necessary kind. A lot of adapters for sale now are just plug changers and require your electronics to convert the voltage themselves. If yours can't do that they could burn up. This one should be appropriate for most places.

  • Travel neck support pillow

    A good option is this one

  • Power bank for devices

    A portable power bank, like this one

October

October for Contra Costa County is mild and dry with little rain. Temperatures average in the low 60s F (low 20s C) during the day.

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.

  • Voice and data SIM card

    A SIM card that works in Contra Costa County. A good global SIM card works in most countries, but check the country list before buying.

  • AirTag to track your luggage

    With airlines frequently losing things recently, an AirTag can locate it anywhere in the world: AirTag for iPhones.

  • Anti-theft backpack

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

Comfort + Essentials

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Luggage scale to avoid fees

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

  • Power bank for devices

    A portable power bank, like this one

  • Travel pillow

    A great choice is this one

  • Voltage step down adapter

    A plug adapter that supports outlet types A and B. It's important that you pick the correct type. Many adapters for sale now are just plug changers and expect your electronics to convert the voltage themselves. If your electronics can't do that they could burn up. This one is sufficent for most countries.

November

If you go to Contra Costa County in November, you will notice that it can be chilly. Expect it to rain about a third of the time. Daytime temperatures are in the low 60s F (high 10s C).

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

  • Voice and data SIM card

    A SIM card that works in Contra Costa County. 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 find it anywhere anywhere: AirTag for iPhones.

  • 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 belongings.

Comfort + Essentials

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Luggage scale to avoid fees

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

  • Power bank for devices

    A portable power bank, like this one

  • Travel neck support pillow

    What we like is this one

  • Travel voltage adapter

    A plug adapter that supports outlet types A and B. Check that you find the necessary type. A lot of adapters currently available are simply plugs and expect your devices to change the voltage themselves. If yours can't do that they could get fried. This one is sufficent for most areas.

December

In December, Contra Costa County can be chilly. Temperatures routinely are in the 50s F (low 10s C) and a bit less than half of the time jump into the low 60s F (mid 10s C) range. At night, lows are in the low 40s F (single digits C). This is also a rainy time for Contra Costa County, with several of the days of the month having rain.

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.

  • AirTag to track your luggage

    With airlines constantly losing bags nowadays, an AirTag can find it anywhere in the world: AirTag for iPhones.

  • Voice and data SIM card

    A SIM card that works in Contra Costa County. A good global SIM card works in most countries, but check the country list before buying.

  • Anti-theft backpack

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

Comfort + Essentials

  • Voltage step down adapter

    A plug adapter that supports outlet types A and B. Ensure that you get the correct type. Most adapters currently sold are just plugs and require your electronics to change the voltage themselves. If your electronics can't do that they could get fried. This one works in most countries.

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Travel neck support pillow

    A great choice is this one

  • Power bank for devices

    A portable power bank, like this one

  • Luggage scale to avoid fees

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

What to do in Contra Costa County, California, United States of America

Contra Costa County in California is well-known for its scenic natural beauty, comfortable weather, and urban attractions. The County boasts some of the most attractive sights in the region. It is an ideal place for every traveler to visit and enjoy as it offers vast outdoor recreation opportunities, rich cultural heritage, and excellent dining experiences. The region provides numerous attractions, and here are the top tourist attractions in Contra Costa County, California.

1. Mount Diablo State Park

Mount Diablo State Park is one of the most popular destinations in Contra Costa County, offering excellent hiking and biking trails for adventure-seekers. The park has over 80 miles of the trail, and the best known is the Summit Trail, which leads to the 3,849-foot peak of Mount Diablo. The peak offers spectacular panoramic views of San Francisco Bay Area and Central Valley.

2. John Muir National Historic Site

John Muir National Historic Site is a beautiful place to visit and learn about the life of John Muir, the famous naturalist, and conservationist. Visitors can explore the John Muir House and the surrounding grounds, which are kept in their original form. The site is a great place to gain insight into Muir's life and his passion for the environment.

3. Waterworld California

Waterworld California is an exciting water park located in Concord, offering a unique escape on hot summer days. The park features over 10 acres of thrilling water rides, wave pools, and a lazy river. It is an excellent place for families to have fun and spend quality time together.

4. Lindsay Wildlife Museum

Lindsay Wildlife Museum is a fascinating place that features various exhibits and interactive displays for visitors of all ages. It focuses on the wildlife of Contra Costa County, and visitors can see live animals such as birds of prey, reptiles, and amphibians. The museum offers an immersive educational experience for visitors.

5. Black Diamond Mines Regional Preserve

Black Diamond Mines Regional Preserve is an exciting park with impressive views and many hiking trails for outdoor enthusiasts. It features historic coal mines, caves, and offers stunning views of the surrounding landscape. Visitors can take guided tours to explore the old mines and learn about the history of coal mining.

6. Broadway Plaza

Broadway Plaza is a popular shopping center located in the heart of Walnut Creek, offering an upscale shopping experience. It features over 70 stores, restaurants, and cafes. Visitors can enjoy a wide variety of shopping, dining, and entertainment options in a beautiful outdoor setting.

7. Benicia State Recreation Area

Benicia State Recreation Area is a beautiful park located on the shores of Carquinez Strait. The park offers visitors plenty of opportunities for relaxation and outdoor recreation, such as fishing, picnicking, and bird watching. It is an excellent place to enjoy the natural beauty of the region.

In conclusion, Contra Costa County is a beautiful place to visit and offers a range of attractions for visitors. From scenic parks to historic sites, cultural exhibits to modern entertainment centers, there is something for everyone to enjoy. Exploring this region of California will provide an unforgettable experience that will leave lasting memories.

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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