The best times to visit Port Townsend for ideal weather are
May 14th to September 30th
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
Port Townsend Travel Guide
Other Port Townsend Travel Info
Weather in Port Townsend
Average temperatures in Port Townsend vary somewhat. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a low chance of precipitation most of the year. The area is somewhat temperate — in the 41st percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Port Townsend, the hottest months are July, August, and then September. See average monthly temperatures below. The warmest time of year is generally mid August where highs are regularly around 69.1°F (20.6°C) with temperatures rarely dropping below 52.4°F (11.3°C) at night.
Port Townsend Temperatures (Fahrenheit)
Port Townsend Temperatures (Celsius)
The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.
Port Townsend Perceived Temperature (F)
Port Townsend Perceived Temperature (C)
Average Port Townsend Temperatures by Month
Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.
|Month||Avg. High (°F)||Avg. Mean (°F)||Avg. Low (°F)|
|Month||Avg. High (°C)||Avg. Mean (°C)||Avg. Low (°C)|
Precipitation (Rain or Snow)
If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Port Townsend are July, September, and then May. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around mid June. For example, on the week of June 18th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in early January with an average of 4 days of significant precipitation the week of January 1st.
When can you find snow in Port Townsend? Weather stations report moderate or seasonal snow likely to be deepest around December, especially close to mid December. The best time to ski (if at all) in Port Townsend is often around around December 17th when fresh powder is deepest. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.
Chance of Precipitation
The graph below shows the % chance of rainy and snowy days in Port Townsend.
Snow on the Ground
The graph below shows the average snow on the ground in Port Townsend (in).
Average Rain and Snow by Month
|Month||Daily Chance of Rain||Average Snow Depth (in)||Total Precipitation (in)|
|Month||Daily Chance of Rain||Average Snow Depth (cm)||Total Precipitation (cm)|
Humidity and Wind
Port Townsend has some very humid months, and above average humidity throughout the year. The least humid month is April (66.1% relative humidity), and the most humid month is October (76.2%).
Wind in Port Townsend is usually moderate. The windiest month is November, followed by March and December. November’s average wind speed of around 9.5 knots (10.9 MPH or 17.5 KPH) is considered “a gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in mid November where average top sustained speeds reach 20.6 knots, which is considered a fresh breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in Port Townsend.
The graph below shows wind speed (max and average) in knots.
Average Wind Speeds
Show Wind Speeds
All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.
|Month||Avg. Wind||Avg. Wind Feel||Sustained High Wind||High Wind Feel|
|Jan||7.7||Gentle breeze||15.5||Significant breeze|
|Feb||8.4||Gentle breeze||16.4||Significant breeze|
|Mar||9.1||Gentle breeze||17.7||Significant breeze|
|Apr||8.5||Gentle breeze||16.4||Significant breeze|
|May||6.3||Light breeze||12.5||Significant breeze|
|Jun||6.2||Light breeze||11.9||Significant breeze|
|Jul||5.4||Light breeze||10.3||Significant breeze|
|Aug||5||Light breeze||10.4||Gentle breeze|
|Sep||5.1||Light breeze||11.4||Significant breeze|
|Oct||6.8||Light breeze||14.1||Significant breeze|
|Nov||9.5||Gentle breeze||18.3||Significant breeze|
|Dec||8.9||Gentle breeze||16.6||Significant breeze|
Show Relative Humidity by Month
|Month||Avg. Relative Humidity|
Is it Safe to Travel to Port Townsend?
Our best data indicates this area is generally safe. As of Oct 07, 2019 there are no travel advisories or warnings for the United States; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Sep 23, 2019.
The Busiest and Least Crowded Months
The busiest month for tourism in Port Townsend, WA, US is July, followed by June and August. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Port Townsend in November. Those willing to visit at these times will likely find it the least expensive month.
Estimated Tourism by Month
Most Popular Months to Visit
Overall Port Townsend Travel Experience by Season
Spring (March through May)
Humidity and temperatures combine to make this season feel moderately cold. Highs range from 61.2°F (16.2°C) and 50.5°F (10.3°C) with warmer temperatures in the later months. Rain is somewhat common with 4 to 8 days of significant precipitation per month. Spring is the second busiest for tourism, which makes it a good time for those looking for things to do.
Summer (June through August)
The middle-year months have comfortably cool weather with high temperatures that are comfortable. These months see the least precipitation with 2 to 5 days of precipitation per month. June – August is the busiest season for tourism in Port Townsend, so lodging and other accommodations may cost more than usual.
Fall (September through November)
Fall daily highs range from 66.8°F (19.3°C) and 47.4°F (8.6°C), which will feel chilly given the humidity and wind. It rains or snows a significant amount: 2 to 8 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.
Winter (December through February)
Weather is too cold this time of year in Port Townsend to be enjoyable for warm weather travelers. The average high during this season is between 51.1°F (10.6°C) and 45.9°F (7.7°C). On average, it rains or snows a fair amount: 6 to 8 times per month. These times of year are fairly slow with tourists.