Annual mean 11°C · wettest around November · prevailing wind SW
Warmest
23.6 °C
Coldest
5.7 °C
Wettest
31%
Windiest
3.7 m/s
Prevailing
SW
3.1 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Olympia over the whole year is 11°C. July is the hottest month, with highs of about 24°C; February is the coldest, with lows of about 3°C. The rainy (wet) season in Olympia runs from October to April, peaking in November with a 34% chance of rain on a given day. The dry season is May to September; July is the driest month, at 7%. Winds in Olympia are highest in April, averaging 2.6 m/s (9 km/h), and lightest in September, at 2.0 m/s (7 km/h). The prevailing wind is from the SW. The clearest skies in Olympia come in July, when the sky is typically 34% covered; December is the cloudiest month, at 78%.
Month by month Olympia climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
7°C
3°C
3°C
33%
75%
2.2 m/s
0
0
24
February
7°C
3°C
3°C
30%
72%
2.5 m/s
0
0
23
March
10°C
3°C
6°C
28%
63%
2.5 m/s
4
0
43
April
13°C
5°C
9°C
25%
56%
2.6 m/s
14
0
66
May
17°C
9°C
14°C
16%
52%
2.5 m/s
44
4
84
June
20°C
12°C
17°C
15%
49%
2.5 m/s
65
10
79
July
24°C
14°C
21°C
7%
34%
2.3 m/s
87
25
67
August
24°C
13°C
22°C
9%
36%
2.2 m/s
86
30
62
September
20°C
11°C
18°C
17%
48%
2.0 m/s
77
8
81
October
14°C
8°C
12°C
26%
59%
2.1 m/s
26
1
79
November
9°C
5°C
6°C
34%
71%
2.3 m/s
3
0
43
December
6°C
3°C
3°C
33%
78%
2.3 m/s
0
0
20
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Olympia weather by season
Year round, Olympia has days of about 6°C at their warmest in December, its coolest month, and 24°C in July, its warmest; the coolest hours of the day run from 3°C to 14°C through the year, and the average temperature over the year is 11°C around the clock. Rain is most likely around November and least likely around July. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Olympia weather in winterDecember to February
High 7°CLow 3°CRain 32%
Winter in Olympia has typical daily highs of about 7°C and lows of about 3°C, with a 32% chance of rain on a given day.
Olympia weather in springMarch to May
High 13°CLow 6°CRain 23%
Spring in Olympia has typical daily highs of about 13°C and lows of about 6°C, with a 23% chance of rain on a given day.
Olympia weather in summerJune to August
High 23°CLow 13°CRain 10%
Summer in Olympia has typical daily highs of about 23°C and lows of about 13°C, with a 10% chance of rain on a given day.
Olympia weather in autumnSeptember to November
High 14°CLow 8°CRain 26%
Autumn in Olympia has typical daily highs of about 14°C and lows of about 8°C, with a 26% chance of rain on a given day.
When is the rainy season in Olympia?
The rainy (wet) season in Olympia runs from October to April, peaking in November with a 34% chance of rain on a given day. The dry season is May to September; July is the driest month, at 7%.
What time of year is Olympia windiest?
Winds in Olympia are highest in April, averaging 2.6 m/s (9 km/h), and lightest in September, at 2.0 m/s (7 km/h). The prevailing wind is from the SW.
What is the average temperature in Olympia year round?
The average temperature in Olympia over the whole year is 11°C. July is the hottest month, with highs of about 24°C; February is the coldest, with lows of about 3°C.