Olympia (WA) monthly weather averages

Contents

Average daytime temperature

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

Olympia average temperature chart (Celsius) Olympia average temperature chart (Fahrenheit)
Average monthly temperatures in Olympia (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 7 9.7 12 14.7 18.3 21.4 24.2 24.6 21.4 15.7 10.3 7.1
°F 44.6 49.4 53.6 58.5 64.9 70.6 75.5 76.2 70.6 60.3 50.5 44.8

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.

Olympia monthly rainfall chart (mm) Olympia monthly rainfall chart (inches)
Average monthly rainfall in Olympia (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 208 154 138 87 56 44 24 33 58 118 204 214
inches 8.2 6.1 5.4 3.4 2.2 1.7 0.9 1.3 2.3 4.6 8 8.4
Rainy days 19 17 18 15 12 9 5 6 9 13 20 21

Average annual rainfall in Olympia: 1261.866mm (496.8 inches)

Average daily sunshine

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

Olympia average daily sunshine chart
Average daily sunshine Olympia
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 2.6 4.1 5.9 7.2 8.7 9.4 10.7 9.6 7.8 5.1 2.8 2.1

Day / night temperatures

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

Olympia average minimum / maximum temperatures (Celsius) Olympia average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Olympia (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 0.3 1.1 1.6 3 5.6 8.5 10.1 10.3 8.1 4.8 2.6 0.8
Max °C 7.2 9.9 12.3 15 18.6 21.8 24.5 24.9 21.8 16 10.5 7.3
Min °F 32.5 34 34.8 37.4 42.1 47.2 50.2 50.5 46.5 40.6 36.6 33.4
Max °F 38.7 41.9 44.4 48.2 53.8 59.2 63.1 63.7 58.8 50.7 43.7 39.2

Sea temperature

The graph below shows the average sea temperature.

Olympia average sea temperature chart (Celsius) Olympia average sea temperature chart (Fahrenheit)
Average sea temperature around Olympia in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 8.1 8 8.3 9.1 10.5 12 13.1 13.4 12.8 11.2 9.7 8.6
°F 46.5 46.4 47 48.4 50.9 53.6 55.5 56.2 55.1 52.1 49.5 47.5

Wind speed

The graph below shows the average wind speed.

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

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.

Olympia relative humidity averages
Average relative humidity in Olympia
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
86% 83% 79% 76% 73% 72% 71% 73% 78% 84% 86% 87%

Other monthly averages

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Beta

Current (hourly) weather 15 day forecast

Olympia weather stats

Olympia weather statistics
Hottest month: August 24.6°C 76.3°F
Driest month: July 24mm 0.9ins
Sunniest month: July 10.7hrs
Coldest month: January 7°C 44.6°F
Wettest month: December 214mm 8.4ins
Warmest sea: August 13.4°C 56.1°F
Map showing location of Olympia (47.03787, -122.9007) Olympia map pin © Google

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