Coupeville (WA) monthly weather averages

Contents

Average daytime temperature

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

Coupeville average temperature chart (Celsius) Coupeville average temperature chart (Fahrenheit)
Average monthly temperatures in Coupeville (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 7.5 9.2 10.9 13.1 16.2 18.6 20.6 20.9 18.8 14.5 10.1 7.7
°F 45.5 48.6 51.6 55.6 61.1 65.5 69 69.5 65.9 58.1 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.

Coupeville monthly rainfall chart (mm) Coupeville monthly rainfall chart (inches)
Average monthly rainfall in Coupeville (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 68 47 47 40 36 31 20 23 32 46 71 81
inches 2.7 1.9 1.9 1.6 1.4 1.2 0.8 0.9 1.2 1.8 2.8 3.2
Rainy days 18 16 16 13 11 9 5 6 9 14 18 19

Average annual rainfall in Coupeville: 468.9mm (184.6 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Coupeville

Coupeville average daily sunshine chart
Average daily sunshine Coupeville
  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 10.9 9.8 7.4 4.9 2.8 2.2

Day / night temperatures

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

Coupeville average minimum / maximum temperatures (Celsius) Coupeville average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Coupeville (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 1.8 2.6 3.3 4.9 7.2 9.4 10.4 10.7 9.2 6.5 4 2.2
Max °C 7.7 9.4 11.1 13.3 16.4 18.9 20.8 21.1 19.1 14.7 10.3 7.8
Min °F 35.2 36.7 37.9 40.8 45 48.8 50.7 51.3 48.5 43.7 39.1 36
Max °F 40.5 42.8 45 48.4 53.2 57.4 60.1 60.6 57.4 51.1 44.8 41

Sea temperature

The graph below shows the average sea temperature.

Coupeville average sea temperature chart (Celsius) Coupeville average sea temperature chart (Fahrenheit)
Average sea temperature around Coupeville 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.

Coupeville average winspeed by month (km/h) Coupeville average winspeed by month (mph)
Average wind speed in Coupeville (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 7 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.

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

Other monthly averages

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Coupeville weather stats

Coupeville weather statistics
Hottest month: August 20.9°C 69.6°F
Driest month: July 20mm 0.8ins
Sunniest month: July 10.9hrs
Coldest month: January 7.5°C 45.5°F
Wettest month: December 81mm 3.2ins
Warmest sea: August 13.7°C 56.7°F
Map showing location of Coupeville (48.21982, -122.68628) Coupeville map pin © Google

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