Riverside County
May
Weather in Riverside County for May 2025
Your guide to Riverside County weather in May - trends and predictions
In general, the average temperature in Riverside County at the beginning of May is 20.1 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 23.9 °F by the end of May.
With an average of 3 rainy days, Riverside County experiences minimal rainfall in May, ensuring that most days remain pleasantly dry.
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28
Dry days
3
Rainy days
0
Snow days
25°/12°
Temperatures
18 km/h
Avg max wind
55 %
Avg humidity
Riverside County in May average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  21° | 2 22° | 3 22° | 4  18° | |||
| 5 16° | 6  20° | 7  22° | 8  24° | 9  24° | 10 24° | 11 25° |
| 12 28° | 13 30° | 14 28° | 15 27° | 16 27° | 17 28° | 18 26° |
| 19 25° | 20 25° | 21 26° | 22 26° | 23 23° | 24 21° | 25 22° |
| 26 23° | 27 25° | 28 25° | 29 24° | 30 25° | 31 23° |
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Temperatures trend during May in Riverside County
See the weather trend as well as the moving average line
May weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 | Patchy rain possible | 21° /13° | 0.2 mm | 5 | |
| May 2 | Patchy rain possible | 22° /12° | 0.3 mm | 6 | |
| May 3 | Patchy rain possible | 22° /12° | 0.4 mm | 5 | |
| May 4 | Moderate or heavy rain shower | 18° /12° | 5.7 mm | 5 | |
| May 5 | Patchy rain possible | 16° /11° | 1.9 mm | 4 | |
| May 6 | Overcast | 20° /10° | 0 mm | 5 | |
| May 7 | Cloudy | 22° /12° | 0 mm | 6 | |
| May 8 | Sunny | 24° /12° | 0 mm | 6 | |
| May 9 | Partly cloudy | 24° /13° | 0.1 mm | 7 | |
| May 10 | Overcast | 24° /13° | 0 mm | 6 | |
| May 11 | Sunny | 25° /13° | 0 mm | 7 | |
| May 12 | Sunny | 28° /14° | 0 mm | 7 | |
| May 13 | Sunny | 30° /16° | 0 mm | 8 | |
| May 14 | Sunny | 28° /15° | 0 mm | 7 | |
| May 15 | Partly cloudy | 27° /15° | 0 mm | 7 | |
| May 16 | Sunny | 27° /15° | 0 mm | 7 | |
| May 17 | Sunny | 28° /15° | 0 mm | 7 | |
| May 18 | Sunny | 26° /15° | 0 mm | 7 | |
| May 19 | Cloudy | 25° /14° | 0 mm | 6 | |
| May 20 | Overcast | 25° /13° | 0 mm | 6 | |
| May 21 | Cloudy | 26° /14° | 0 mm | 6 | |
| May 22 | Sunny | 26° /15° | 0 mm | 7 | |
| May 23 | Partly cloudy | 23° /13° | 0 mm | 6 | |
| May 24 | Cloudy | 21° /13° | 0.1 mm | 5 | |
| May 25 | Cloudy | 22° /13° | 0.1 mm | 5 | |
| May 26 | Partly cloudy | 23° /12° | 0.1 mm | 6 | |
| May 27 | Partly cloudy | 25° /13° | 0 mm | 7 | |
| May 28 | Overcast | 25° /14° | 0 mm | 6 | |
| May 29 | Cloudy | 24° /15° | 0 mm | 6 | |
| May 30 | Patchy rain possible | 25° /15° | 0.4 mm | 6 | |
| May 31 | Patchy rain possible | 23° /15° | 0.6 mm | 6 | |
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Important Notice
Our weather forecast for Riverside County in May 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 May - FAQ
What are the expected maximum and minimum temperatures in Riverside County during May?
Enjoy moderate daytime temperatures of up to 25° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Riverside County during May?
Expect minimal rainfall in Riverside County during May, with a total of 19.3 mm over approximately 3 days. This minimal precipitation is unlikely to significantly impact plans.
What are the typical wind conditions in Riverside County during May?
The average wind speed in Riverside County during May is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
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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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