Olympia Weather in September

September in Olympia brings high temperatures, with highs of 22°C (72°F) and nights dropping to 8°C (46°F). Rainfall is on the higher side this month, averaging around 68 mm (2.7 in), so keep a rain jacket handy.

Rainfall in Olympia in September

Past climate data indicates that roughly 10 days will see rain, totalling around 68 mm (2.7 in) for the month. Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.

Temperature in Olympia in September

September is a perfect month in Olympia, with 22°C (72°F) during the day and 8°C (46°F) at night. September is part of the summer season. This kind of day-to-night contrast is typical for this time of year. At 8°C (46°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.

Sunshine in Olympia in September

The days are predominantly sunny, with an estimated total of around 209 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.

So this is a great month to visit if you prefer dry days with pleasant temperatures.

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• January
• February
• March
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• May
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• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Olympia's climate page.

Olympia Temperature in September

Min Temperature 8°C (46°F)  

Max Temperature 22°C (72°F)  

Chance of Rain 33%  

Precipitation 68 mm (2.7 in)  

Rainy days 10 days  

Sunshine 209 hours *  

Percentage Sunshine 55% *  

* Data from: Tacoma, the United States of America (41 KM, 25 Miles).

What to Wear in Olympia in September

For Olympia in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Olympia in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling

10/10

Walking

10/10

Barbeque

8/10

Camping

4/10

Outdoor sports

10/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Olympia's climate page.

More climate data for Olympia

Temperature Rainfall Sunshine

See the full Olympia climate overview or explore weather in the United States of America.