Issaquah, Washington, United States of America: What to pack, what to wear, and when to go [2018]

Traveling to Issaquah, Washington, United States of America? If you're planning to go to Issaquah, here is some important information about when to go, what to wear, and what to pack:

When to go to Issaquah, Washington, United States of America

Based on the climate and weather in Issaquah, the best time to go is July. See below for details.

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

January

In January, Issaquah is pretty cool and very rainy. Temperatures routinely are in the high 40s F (single digits C) and about a third of the time jump into the low 50s F (single digits C) range. At night, lows are in the high 30s F (single digits C).

During your visit, you can expect a few inches of snow. This is also a rainy time for Issaquah, with more than half of the days of the month having rain.

What to wear/what to pack:

  • Warm pants or jeans
  • Umbrella
  • Socks
  • Waterproof luggage
  • Rain coat
  • Fleeces
  • Waterproof footwear
  • Light gloves or mittens
  • Standard footwear
  • Jacket or coat

February

In February, Issaquah can be very chilly and somewhat rainy. Temperatures routinely are in the low 40s F (single digits C) and about half of the time jump into the low 50s F (single digits C) range. At night, lows are in the high 30s F (single digits C).

During your visit, you can expect a few inches of snow. This is also a rainy time for Issaquah, with more than half of the days of the month having rain.

What to wear/what to pack:

  • Waterproof footwear
  • Fleeces
  • Socks
  • Umbrella
  • Waterproof luggage
  • Rain coat
  • Jacket or coat
  • Light gloves or mittens
  • Warm pants or jeans
  • Standard footwear

March

If you vacation in Issaquah during March, you are likely to find that it is pretty cool and very rainy. Temperatures tend to hover around the 50s F (low 10s C) during the day, while at night they can dip into the high 30s 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:

  • Jacket or coat
  • Waterproof luggage
  • Rain coat
  • Light gloves or mittens
  • Warm pants or jeans
  • Fleeces
  • Socks
  • Waterproof footwear
  • Standard footwear
  • Umbrella

April

If you go to Issaquah in April, you will notice that it is crisp 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:

  • Dresses
  • Waterproof footwear
  • Waterproof luggage
  • Rain coat
  • Socks
  • Standard footwear
  • Long sleeve shirts or blouses
  • Long skirts
  • Light jacket or fleece
  • Pants or jeans
  • Umbrella

May

May in Issaquah is relatively cool and somewhat rainy. The average overnight temperatures in the area are in the high 40s F (single digits C). It tends to rain regularly.

What to wear/what to pack:

  • Waterproof footwear
  • Socks
  • Light jacket or fleece
  • Dresses
  • Long sleeve shirts or blouses
  • Pants or jeans
  • Rain coat
  • Long skirts
  • Waterproof luggage
  • Standard footwear
  • Umbrella

June

June in Issaquah is balmy. The rain can amount to several inches/centimeters.

During this time, temperatures average in the low 60s F (mid 10s C) to low 60s F (low 20s C), although night temperatures can dip into the low 50s F (single digits C).

What to wear/what to pack:

  • Rain coat
  • Light jacket or fleece
  • Standard footwear
  • Long skirts
  • Waterproof luggage
  • Pants or jeans
  • Long sleeve shirts or blouses
  • Dresses
  • Waterproof footwear
  • Umbrella
  • Socks

July

July is a perfect temperature. Temperatures average in the 70s F (mid 20s C) during the day. It rains sometimes.

What to wear/what to pack:

  • Rain coat
  • Skirts
  • Waterproof luggage
  • Shorts or short pants
  • Light footwear
  • Waterproof footwear
  • Long and short sleeve shirts
  • Dresses
  • Umbrella
  • Sunscreen lotion
  • If you're going to the beach, bathing suits, swimwear
  • Sandals

August

If you vacation in Issaquah during August, you are likely to find that it is a perfect temperature. 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:

  • Waterproof luggage
  • Sunscreen lotion
  • Rain coat
  • If you're going to the beach, bathing suits, swimwear
  • Sandals
  • Waterproof footwear
  • Umbrella
  • Long and short sleeve shirts
  • Skirts
  • Dresses
  • Light footwear
  • Shorts or short pants

September

September in Issaquah is mild. The rain can amount to several inches/centimeters.

During this time, temperatures average in the low 60s F (mid 10s C) to 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:

  • Rain coat
  • Long and short sleeve shirts
  • Sunscreen lotion
  • Dresses
  • Skirts
  • Sandals
  • Shorts or short pants
  • If you're going to the beach, bathing suits, swimwear
  • Waterproof luggage
  • Waterproof footwear
  • Light footwear
  • Umbrella

October

In October, Issaquah is crisp and somewhat rainy. Temperatures routinely are in the low 50s F (mid 10s C) and about half of the time jump into the low 60s F (mid 10s C) range.

At night, lows are in the 40s F (single digits C). This is also a rainy time for Issaquah, with several of the days of the month having rain.

What to wear/what to pack:

  • Long skirts
  • Standard footwear
  • Dresses
  • Waterproof footwear
  • Waterproof luggage
  • Light jacket or fleece
  • Umbrella
  • Rain coat
  • Pants or jeans
  • Socks
  • Long sleeve shirts or blouses

November

If you vacation in Issaquah during November, you are likely to find 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:

  • Long sleeve shirts or blouses
  • Socks
  • Waterproof footwear
  • Pants or jeans
  • Long skirts
  • Rain coat
  • Waterproof luggage
  • Umbrella
  • Dresses
  • Light jacket or fleece
  • Standard footwear

December

If you are traveling to Issaquah in December, you will notice that it can be brisk and very rainy. Expect it to rain about half of the time. Daytime temperatures are in the 40s F (single digits C).

What to wear/what to pack:

  • Jacket or coat
  • Standard footwear
  • Waterproof footwear
  • Rain coat
  • Waterproof luggage
  • Umbrella
  • Socks
  • Warm pants or jeans
  • Light gloves or mittens
  • Fleeces

Year-round what to wear/what to pack for Issaquah, Washington, United States of America

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

  • A plug adadpter that supports outlet types A and B
  • A SIM card that works in Issaquah
  • Appropriate museum wear
  • Bicycle friendly attire, if you plan on biking anywhere

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