Port Townsend (WA) monthly weather averages

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at Port Townsend

Port Townsend average temperature chart (Celsius) Port Townsend average temperature chart (Fahrenheit)
Average monthly temperatures in Port Townsend (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 7.5 9.3 11 13.4 16.7 19.5 21.7 22 19.6 14.8 10.1 7.7
°F 45.5 48.7 51.8 56.2 62.1 67 71 71.7 67.2 58.6 50.2 45.8

Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

Average rainfall & rainy days

The graph below shows the average rainfall and number of rainy days per month.

Port Townsend monthly rainfall chart (mm) Port Townsend monthly rainfall chart (inches)
Average monthly rainfall in Port Townsend (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 77 54 60 47 42 35 22 24 34 48 82 98
inches 3 2.1 2.3 1.8 1.6 1.4 0.9 1 1.3 1.9 3.2 3.8
Rainy days 18 16 16 14 11 9 5 6 9 14 18 19

Average annual rainfall in Port Townsend: 548.133mm (215.8 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Port Townsend

Port Townsend average daily sunshine chart
Average daily sunshine Port Townsend
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 2.4 3.8 5.3 6.8 8.4 9.1 10.8 9.8 7.5 4.9 2.8 2.2

Day / night temperatures

The graph below shows the daily range of temperatures for each month.

Port Townsend average minimum / maximum temperatures (Celsius) Port Townsend average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Port Townsend (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 2.4 3.2 3.6 5.2 7.5 9.7 10.9 11.3 9.8 7.1 4.6 2.8
Max °C 7.7 9.5 11.2 13.7 17 19.7 22 22.3 19.8 15 10.3 7.8
Min °F 36.2 37.7 38.5 41.3 45.4 49.5 51.5 52.3 49.6 44.7 40.2 37
Max °F 41 43.3 45.3 48.9 54 58.5 61.5 62.2 58.6 51.8 45.3 41.5

Sea temperature

The graph below shows the average sea temperature.

Port Townsend average sea temperature chart (Celsius) Port Townsend average sea temperature chart (Fahrenheit)
Average sea temperature around Port Townsend in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 7.7 7.6 8.1 9.2 11 12.6 13.5 13.7 12.8 10.8 9.4 8.3
°F 45.9 45.7 46.6 48.6 51.8 54.6 56.4 56.6 55 51.5 48.8 46.9

Wind speed

The graph below shows the average wind speed.

Port Townsend average winspeed by month (km/h) Port Townsend average winspeed by month (mph)
Average wind speed in Port Townsend (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 14 14 13 13 12 12 12 11 10 11 14 14
mph 9 9 8 8 8 7 7 7 7 7 9 9

A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

Relative humidity

The graph below shows the average relative humidity.

Port Townsend relative humidity averages
Average relative humidity in Port Townsend
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
83% 81% 78% 74% 73% 72% 71% 73% 77% 83% 84% 85%

Other monthly averages

UV index Best time to go?

Port Townsend weather stats

Port Townsend weather statistics
Hottest month: August 22°C 71.6°F
Driest month: July 22mm 0.9ins
Sunniest month: July 10.8hrs
Coldest month: January 7.5°C 45.5°F
Wettest month: December 98mm 3.9ins
Warmest sea: August 13.7°C 56.7°F
Map showing location of Port Townsend (48.11704, -122.76045) Port Townsend map pin © Google

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