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Weather in Riverside County for August 2025

Your guide to Riverside County weather in August - trends and predictions
  • In general, the average temperature in Riverside County at the beginning of August is 36.1 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 35 °F by the end of August.

  • With an average of 5 rainy days, Riverside County experiences minimal rainfall in August, ensuring that most days remain pleasantly dry.

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Average dry days
26
Dry days
Average rainy days
5
Rainy days
Average snowy days
0
Snow days
Average temperatures
34°/20°
Temperatures
Average wind speed
17 km/h
Avg max wind
Average humidity
42 %
Avg humidity

Riverside County in August average weather

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Temperatures trend during August in Riverside County

See the weather trend as well as the moving average line

August weather day by day

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Date Weather Temperatures Rain UV More
Aug. 1 Overcast
Overcast
33° /22° 0 mm 7
Aug. 2 Partly cloudy
Partly cloudy
36° /22° 0 mm 9
Aug. 3 Sunny
Sunny
37° /22° 0 mm 9
Aug. 4 Sunny
Sunny
36° /22° 0 mm 9
Aug. 5 Sunny
Sunny
38° /23° 0 mm 9
Aug. 6 Sunny
Sunny
39° /23° 0 mm 9
Aug. 7 Sunny
Sunny
34° /23° 0 mm 9
Aug. 8 Sunny
Sunny
33° /20° 0 mm 8
Aug. 9 Heavy rain at times
Heavy rain at times
32° /21° 2.4 mm 8
Aug. 10 Patchy rain possible
Patchy rain possible
32° /21° 0.2 mm 8
Aug. 11 Cloudy
Cloudy
32° /21° 0 mm 8
Aug. 12 Sunny
Sunny
33° /20° 0 mm 8
Aug. 13 Sunny
Sunny
33° /21° 0 mm 8
Aug. 14 Sunny
Sunny
35° /21° 0 mm 9
Aug. 15 Sunny
Sunny
37° /22° 0 mm 9
Aug. 16 Patchy rain possible
Patchy rain possible
37° /24° 0.1 mm 8
Aug. 17 Sunny
Sunny
37° /23° 0 mm 9
Aug. 18 Sunny
Sunny
35° /21° 0 mm 9
Aug. 19 Patchy rain possible
Patchy rain possible
33° /22° 0.2 mm 8
Aug. 20 Moderate or heavy rain shower
Moderate or heavy rain shower
31° /22° 32.9 mm 8
Aug. 21 Moderate rain at times
Moderate rain at times
31° /20° 10.2 mm 7
Aug. 22 Overcast
Overcast
31° /19° 0 mm 8
Aug. 23 Partly cloudy
Partly cloudy
30° /18° 0 mm 8
Aug. 24 Partly cloudy
Partly cloudy
29° /19° 0 mm 8
Aug. 25 Partly cloudy
Partly cloudy
32° /18° 0 mm 8
Aug. 26 Sunny
Sunny
35° /20° 0 mm 9
Aug. 27 Sunny
Sunny
35° /21° 0 mm 9
Aug. 28 Sunny
Sunny
36° /22° 0 mm 9
Aug. 29 Sunny
Sunny
36° /22° 0 mm 9
Aug. 30 Sunny
Sunny
36° /22° 0 mm 9
Aug. 31 Sunny
Sunny
35° /22° 0 mm 9
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Important Notice
Our weather forecast for Riverside County in August is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Riverside County forecast closer to your planned date for the most up-to-date weather information.

Riverside County in August - FAQ

What are the expected maximum and minimum temperatures in Riverside County during August?
Expect warm days with temperatures around 34°, cooling to mild conditions of 20° after sunset. Perfect for those who enjoy warm weather.
How much rainfall should be expected in Riverside County during August?
Moderate rainfall is anticipated in Riverside County during August, with a total of 91.6 mm spread over approximately 5 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Riverside County during August?
The average wind speed in Riverside County during August is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
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Location coordinates Where is Riverside County?

Get accurate weather forecasts for Riverside County, located at latitude 33.953 and longitude -117.396. Stay updated with localized weather information tailored for Riverside County.

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