Tumwater (WA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Tumwater.
Climate overview of Tumwater
Tumwater, Washington State, United States of America, experiences significant temperature variation throughout the year. Summers bring daytime highs of 25°C (77°F) in July, while winters cool to 7°C (45°F) in December.
The city receives considerable rain/snowfall, with around 1419 mm (56 in) annually. November is the wettest month. It has distinct dry (June to August) and wet (November to January) seasons, with warm summers and cold winters. July is the sunniest month, averaging 10.4 hours of sunshine per day.
Tumwater Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Tumwater - and find the best time to visit.
Monthly Temperature in Tumwater
Depending on the time of the year, temperatures range from comfortable to chilly in Tumwater. Typically, average maximum daytime temperatures range from a comfortable 25°C (77°F) in July to a chilly 7°C (45°F) in the coolest month, December.
Nights vary from 11°C (52°F) in July to around 0°C (32°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Tumwater
Tumwater has a relatively rain/snowy climate with high precipitation levels, averaging 1419 mm (56 in) of rain/snowfall annually. The climate in Tumwater shows significant variation throughout the year. Expect heavy rainfall in November, the wettest month, with an average of 250 mm (9.8 in) of precipitation over 21 rainy days.
In contrast, the driest month July offers drier and sunnier days, with around 15 mm (0.6 in) of rainfall over 5 rainy days. For more details, please visit our Tumwater Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Tumwater
For those who appreciate different seasons, Tumwater serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 10.4 hours of sunshine daily, and embrace the darker days in November, offering only 2.0 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Best Time to Visit Tumwater
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: June, July, August and September
- Warmest weather: July and August
- Most sunshine: July
- Fewest rainy days: July and August
- Wettest months: January, February, March, October, November and December, when rainfall is highest.
- Seasonal pattern: Distinct dry (June to August) and wet (November to January) seasons, with warm summers and cold winters
Frequently asked questions about the climate in Tumwater
What is the best time to visit Tumwater?
June, July, August and September typically offer the most optimal weather in Tumwater. In contrast, January, February, March, November and December tend to have less optimal conditions. Tumwater has distinct dry (June to August) and wet (November to January) seasons, with warm summers and cold winters.
What temperatures can I expect in Tumwater?
Daytime highs range from 7°C (45°F) in December to 25°C (77°F) in July. Nighttime lows range from 0°C (32°F) to 11°C (52°F). Temperatures vary considerably through the year.
How much rain does Tumwater get?
Annual rainfall is around 1419 mm (56 in). November is the wettest month with 250 mm (9.8 in), while July is the driest with 15 mm (0.6 in).
How sunny is Tumwater?
Tumwater receives around 2,172 hours of sunshine per year. July is the sunniest month with 312 hours, while November is the cloudiest with just 60 hours. Overall, Tumwater enjoys abundant sunshine.
Tumwater 3-Day Forecast
Tumwater on the map
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