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United StatesThe weather in August in Riverside
It's hot in August in Riverside with an average temperature of 35°C. Temperatures this month range from a low of 32°C to a high of 38°C. At night, you can expect temperatures between 19°C and 21°C.
August is a good month to be in Riverside for sunny weather. You’ll have high temperatures and not too much rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in August for Riverside, 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 44°C in 2017, Riverside reached the highest temperature in August over the past 10 years. The lowest daytime temperature in this month was 24°C in 2021. The extreme nighttime temperatures ranged from a lowest recorded value of 14°C to a highest value of 27°C.
Rainfall amount
According to weather history, there is only 6,3 mm of precipitation in August. The wind speed is around 4 Bft, mostly coming from the West.
Daily weather in August for Riverside
Click on any day in August to get detailed info about the usual weather on that day in Riverside. Check out the historical temperatures and precipitation over the past 10 years on this day.
August weather comparison
| Riverside | New York | |
|---|---|---|
| Average temperature | 35°C | 30°C |
| Max. temperature | 38°C | 31°C |
| Min. temperature | 19°C | -5°C |
| Total precipitation | 6,3 mm | 79 mm |
| Rainy days | 1 day | 13 days |
Start of August
The month of August starts in Riverside with hot temps, averaging around 35°C during the day and nights around 20°C.
Mid August
By mid-August, daytime temps rise to around 36°C, with nights around 20°C. Not much precipitation expected during this period. It’s mostly dry and sunny.
End of August
By the end of August, the average daytime temperature in Riverside is around 36°C, while nighttime temps are about 20°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.
Check out the climate of Riverside for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in August in Riverside, California. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in August in Riverside
Temperature in August in Riverside over the years
Precipitation charts
These charts show the average amount of precipitation in August in Riverside, 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 Riverside
Total precipitation in August in Riverside over the years
Daily UV index in August in Riverside
This chart shows the average daily UV index in August in Riverside, 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 Riverside
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Average weather in Riverside by month
Click on a month below to see detailed weather info for Riverside. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.