August weather forecastTumwater, WA
August
Weather in August
August, the last month of the summer in Tumwater, is also a moderately hot month, with an average temperature ranging between max 78.6°F (25.9°C) and min 50.5°F (10.3°C).Temperature
Tumwater experiences its highest temperatures in August, with an average peak of 78.6°F (25.9°C) and a low of 50.5°F (10.3°C).Humidity
The average relative humidity in August in Tumwater is 73%.Rainfall
In August, in Tumwater, the rain falls for 5.5 days. Throughout August, 0.47" (12mm) of precipitation is accumulated. In Tumwater, during the entire year, the rain falls for 177.4 days and collects up to 37.05" (941mm) of precipitation.Snowfall
In Tumwater, Washington, snow does not fall in April through October.Daylight
In Tumwater, the average length of the day in August is 14h and 10min.On the first day of the month, sunrise is at 5:52 am and sunset at 8:43 pm. On the last day of August, sunrise is at 6:30 am and sunset at 7:52 pm PDT.
Sunshine
The month with the most sunshine in Tumwater is August, with an average of 10.2h of sunshine.UV index
The average daily maximum UV index in August is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In August, the maximum UV index of 4 suggests these recommendations:
Undertake precautions - Obligation exists to protect against skin and eye damage. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Tumwater, WA
- Average high temperature in August: 78.6°F
The warmest month (with the highest average high temperature) is August (78.6°F).
The month with the lowest average high temperature is December (43°F).
- Average low temperature in August: 50.5°F
The month with the highest average low temperature is August (50.5°F).
The coldest month (with the lowest average low temperature) is December (33.4°F).
Average pressure in August
Tumwater, WA
- Average pressure in August: 30.02"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is March (30.01"Hg).
Average wind speed in August
Tumwater, WA
- Average wind speed in August: 4mph
The windiest months (with the highest average wind speed) are March and November (4.6mph).
The calmest month (with the lowest average wind speed) is September (3.8mph).
Average humidity in August
Tumwater, WA
- Average humidity in August: 73%
The months with the highest relative humidity are January, November and December (89%).
The month with the lowest relative humidity is July (71%).
Average rainfall in August
Tumwater, WA
- Average rainfall in August: 0.47"
The wettest month (with the highest rainfall) is December (5.79").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days in August
Tumwater, WA
- Average rainfall days in August: 5.5 days
The month with the highest number of rainy days is March (20.4 days).
The month with the least rainy days is August (5.5 days).
Average snowfall in August
Tumwater, WA
- Average snowfall in August: 0"
The month with the highest snowfall is February (2.32").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in August
Tumwater, WA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (3.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Tumwater, WA
- Average daylight in August: 14h and 12min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in August: 10h and 12min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days in August
Tumwater, WA
- Average sunshine days in August: 22.4 days
The month with the most sunshine days is August (22.4 days).
The month with the least sunshine days is February (8.4 days).
Average UV index in August
Tumwater, WA
- Average UV index in August: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in August
Tumwater, WA
- Average cloud cover in August: 35
The months with the most cloud cover are January and December (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 35).
Average visibility in August
Tumwater, WA
- Average visibility in August: 5mi
The months with the highest visibility are June, July and August (5mi).
The months with the lowest visibility are January, February, March, April, May, September, October, November and December (4mi).





