King County, Washington, United States of America: What to pack, what to wear, and when to go [2021]

This article contains affiliate links to Amazon and other vendors. We may earn commission from purchases made through these links.

Traveling to King County, Washington, United States of America? If you're planning to go to King County, the following is some important information about when to go, what to wear, and what to pack.

Contents


When to go to King County, Washington, United States of America

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

Important esssentials for King County, Washington, United States of America

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

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

January

January in this region can be very chilly and very rainy. Temperatures average in the high 40s F (single digits C) during the day. It rains about half of the time.

What to wear/what to pack:

February

February in this region is brisk and somewhat rainy. Temperatures average in the low 40s F (single digits C) during the day. It rains about half of the time.

What to wear/what to pack:

March

In March, King County is pretty cool and very rainy. Temperatures routinely are in the 50s F (low 10s C) and sometimes 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 King County, with more than half of the days of the month having rain.

What to wear/what to pack:

April

April in King County is relatively cool and somewhat rainy. The rain can amount to several inches/centimeters.

During this time, temperatures average in the low 50s F (low 10s C) to 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:

May

In May, King County can be chilly and somewhat rainy. Temperatures routinely are in the 60s F (high 10s C) and regularly 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 King County, with several of the days of the month having rain.

What to wear/what to pack:

June

June in King County is balmy. The rain can amount to several inches/centimeters. During this time, temperatures average in the 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:

July

If you go to King County in July, you will notice that it is warm. Expect it to rain occasionally. Daytime temperatures are in the 70s F (mid 20s C).

What to wear/what to pack:

August

If you are traveling to King County in August, you will notice that it is a perfect temperature. Expect it to rain occasionally. Daytime temperatures are in the 70s F (mid 20s C).

What to wear/what to pack:

September

September in King County 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 70s F (low 20s C), although night temperatures can dip into the low 50s F (single digits C).

What to wear/what to pack:

October

October in this region can be chilly and somewhat rainy. Temperatures average in the low 50s F (mid 10s C) during the day. It rains a bit less than half of the time.

What to wear/what to pack:

November

In November, King County is brisk and very rainy. Temperatures routinely are in the low 50s F (low 10s C) range. At night, lows are in the low 40s F (single digits C).

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

What to wear/what to pack:

December

If you visit King County during December, you may see that it can be brisk and very rainy. Temperatures tend to hover around the 40s F (single digits C) during the day, while at night they can dip into the 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:

Check out our guides for these other locations: Papa Westray, Scotland, United Kingdom, Agios Lavrentios, Greece, Costa Brava, Spain, Aran Islands, Ireland, Ontario, California, United States of America, Janda Baik, Malaysia, Dnipro, Ukraine, Gengenbach, Germany, Vama Veche, Romania, South Ossetia, South Ossetia, and Cottage Grove, Minnesota, United States of America.