The temperatures in Olympia in September are comfortable with low of 10°C and and high up to 23°C.
You can expect about 3 to 8 days of rain in Olympia during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Olympia in September 2024.
If you’re planning to visit Olympia in the near future, we highly recommend that you review the 14 day weather forecast for Olympia before you arrive.
Temperatures
23° / 10°
Rainy Days
6
Snowy Days
0
Dry Days
24
Rainfall
106
mm
Sun Hours
9.7
Hrs
