Riverside County (Riverside)
May
Weather in Riverside County, California for May 2027
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 20.8 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 25.1 °C by the end of May.
Precipitation in Riverside County during May is a rare event, with an average of fewer than 2 rainy days.
Is May a good time to visit Riverside County? check out the best time to travel to Riverside County page.
✨ Is May a good time to visit Riverside County? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
30
Dry days
1
Rainy days
0
Snow days
25°/14°
Temperatures
19 km/h
Avg max wind
54 %
Avg humidity
Riverside County Weather May
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Temperatures trend during May in Riverside County
See the weather trend as well as the moving average line
May weather in Riverside County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 |  Sunny | 23° /13° | 0.1 mm | 7 | |
| May 2 |  Overcast | 24° /13° | 0.2 mm | 7 | |
| May 3 |  Patchy rain possible | 21° /13° | 0.2 mm | 6 | |
| May 4 |  Light rain | 18° /12° | 2.9 mm | 6 | |
| May 5 | Patchy rain possible | 16° /12° | 2.4 mm | 5 | |
| May 6 | Overcast | 21° /11° | 0 mm | 6 | |
| May 7 |  Cloudy | 24° /13° | 0 mm | 7 | |
| May 8 | Sunny | 26° /13° | 0 mm | 8 | |
| May 9 | Sunny | 28° /15° | 0.1 mm | 8 | |
| May 10 | Sunny | 29° /16° | 0 mm | 8 | |
| May 11 | Sunny | 29° /16° | 0 mm | 8 | |
| May 12 | Sunny | 26° /15° | 0 mm | 8 | |
| May 13 | Sunny | 25° /15° | 0 mm | 8 | |
| May 14 | Sunny | 27° /14° | 0 mm | 8 | |
| May 15 |  Partly cloudy | 27° /14° | 0 mm | 8 | |
| May 16 | Cloudy | 25° /14° | 0 mm | 7 | |
| May 17 | Cloudy | 24° /14° | 0 mm | 7 | |
| May 18 | Sunny | 26° /14° | 0 mm | 7 | |
| May 19 | Partly cloudy | 27° /13° | 0 mm | 8 | |
| May 20 | Sunny | 29° /15° | 0 mm | 8 | |
| May 21 | Sunny | 30° /15° | 0 mm | 8 | |
| May 22 | Sunny | 28° /15° | 0 mm | 8 | |
| May 23 | Sunny | 26° /15° | 0 mm | 8 | |
| May 24 | Cloudy | 23° /14° | 0 mm | 7 | |
| May 25 | Cloudy | 23° /13° | 0 mm | 7 | |
| May 26 | Partly cloudy | 23° /13° | 0 mm | 8 | |
| May 27 | Partly cloudy | 24° /13° | 0 mm | 7 | |
| May 28 | Overcast | 24° /13° | 0 mm | 8 | |
| May 29 | Sunny | 25° /14° | 0.2 mm | 8 | |
| May 30 | Sunny | 28° /15° | 0.2 mm | 8 | |
| May 31 | Sunny | 29° /16° | 0.3 mm | 8 | |
| Next | |||||
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.
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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 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Riverside County during May?
Rainfall in Riverside County during May is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 1 days seeing any precipitation. Planning without the concern for rain is generally straightforward during this very dry period.
What are the typical wind conditions in Riverside County during May?
The average wind speed in Riverside County during May is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Riverside County
Explore the daily rainfall trends and prepare for Riverside Countys May weather 💧
Typically, Riverside County has 1 rainy days in May with a total of 6.6 mm of rainfall.
UV exposure in Riverside County during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
Top locations in Riverside County
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