Normal weather for Santa Rosa in August

It's warm in August in Santa Rosa with an average temperature of 29°C. Temperatures this month range from a low of 27°C to a high of 34°C. At night, you can expect temperatures between 12°C and 14°C.

According to weather history, there is only 0,9 mm of precipitation in August. The wind speed is around 4 Bft, mostly coming from the South.

Santa Rosa in August		London
Average Temperature	29°C	22°C
High Temp	34°C	24°C
Low Temp	27°C	19°C
Total Precipitation	0,9 mm	60 mm
Rainy Days	1 day	10 days

Start of August

The month of August starts in Santa Rosa with hot temperatures, averaging around 29°C during the day and nights close to 13°C. You won’t see any precipitation in the first days of the month, it’s all sunny skies.

Since temperatures can differ between day and night, it’s a good idea to dress in layers. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal for the day. For the evening and morning, a shirt, maybe a light cardigan, and light trousers will do.

Mid-August

By mid-August, the average daytime temperature rises to around 31°C, with nights close to 14°C. No precipitation expected during this period, so you can enjoy plenty of sunshine.

Temperatures vary between day and night, so it’s smart to wear layers. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal for the day. For the evening and morning, a shirt, maybe a light cardigan, and light trousers will do.

End of August

By the end of August, the average daytime temperature in Santa Rosa will be around 29°C, with nights close to 14°C. No precipitation expected, with plenty of sunshine on the horizon.

As it gets cooler in the evening, it’s best to wear layers. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal for the day. For the evening and morning, a shirt, maybe a light cardigan, and light trousers will do.

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UV index

The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.

Is August a good time to visit Santa Rosa?

Want nice weather? Then August is a great time to be in Santa Rosa. You’ll have pleasant temperatures and little chance of rain this month.

Temperature records for Santa Rosa in August

With 40°C, Santa Rosa hit the highest temperature in the last 10 years in August 2020. The lowest daytime temperature in this month was 19°C in 2014. The extreme night temperatures ranged from a low of 7°C to a high of 19°C.

Check out the climate of Santa Rosa for all months and discover the best travel time

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Daily Temperature in August in Santa Rosa

This chart shows the average daily temperatures, both day and night, for each day in August in Santa Rosa, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.

Daily Precipitation in August in Santa Rosa

The chart below shows the average daily precipitation in August for Santa Rosa, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.

A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for August, you can expect about 1 day of rain in Santa Rosa.

Daily Precipitation in August in Santa Rosa

Daily UV Index in August in Santa Rosa

This chart shows the average daily UV index in August in Santa Rosa, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Temperature in August in Santa Rosa Over the Years

This chart shows the average temperature in August in Santa Rosa, measured in degrees Celsius, over the past years.

Total Precipitation in August in Santa Rosa Over the Years

This chart shows the average precipitation in August in Santa Rosa, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.

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September

Daily climate in August for Santa Rosa

Click on a specific day in August for detailed info on the typical weather on that day in Santa Rosa. Check out the historical temperatures and precipitation over the past 10 years on this day.

Average Weather in Santa Rosa by Month

Click on a month below to see detailed weather info for Santa Rosa. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.