Weathermondo.com
United StatesThe weather in August in Santa Rosa
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.
Looking for great weather? August is a good time to be in Santa Rosa. The temperatures are nice, and there’s little chance of rain this month.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in August for Santa Rosa, California. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 40°C in 2020, Santa Rosa reached the highest temperature in August over the past 10 years. The lowest daytime temperature in this month was 19°C in 2014. The extreme nighttime temperatures ranged from a lowest recorded value of 7°C to a highest value of 19°C.
Rainfall amount
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.
Daily weather in August for Santa Rosa
Click on any day in August to get detailed info about the usual weather on that day in Santa Rosa. Check out the historical temperatures and precipitation over the past 10 years on this day.
August weather comparison
| Santa Rosa | New York | |
|---|---|---|
| Average temperature | 29°C | 30°C |
| Max. temperature | 34°C | 31°C |
| Min. temperature | 12°C | -5°C |
| Total precipitation | 0,9 mm | 79 mm |
| Rainy days | 1 day | 13 days |
Start of August
The month of August starts in Santa Rosa with hot temps, averaging around 29°C during the day and nights around 13°C.
Mid August
By mid-August, daytime temps rise to around 31°C, with nights around 14°C. No precipitation expected during this period, so you can enjoy plenty of sunshine.
End of August
By the end of August, the average daytime temperature in Santa Rosa is around 29°C, while nighttime temps are about 14°C. No precipitation expected at the end of the month; it’ll be mostly sunny.
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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.
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Temperature charts
These charts show the average temperatures in August in Santa Rosa, California. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in August in Santa Rosa
Temperature in August in Santa Rosa over the years
Precipitation charts
These charts show the average amount of precipitation in August in Santa Rosa, California. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in August in Santa Rosa
Total precipitation in August in Santa Rosa over the years
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.
Weather experiences in August in Santa Rosa
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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.