Riverside (CA)
May
Weather in Riverside, California for May 2026
Your guide to Riverside weather in May - trends and predictions
In general, the average temperature in Riverside at the beginning of May is 20 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 25.7 °F by the end of May.
With an average of 2 rainy days, Riverside experiences minimal rainfall in May.
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Temperatures
Rain 🌧️
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29
Dry days
2
Rainy days
0
Snow days
24°/14°
Temperatures
18 km/h
Avg max wind
53 %
Avg humidity
Riverside Weather May
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Temperatures trend during May in Riverside
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May weather in Riverside day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 |  Patchy rain possible | 22° /12° | 0.2 mm | 5 | |
| May 2 | Patchy rain possible | 22° /12° | 0.2 mm | 5 | |
| May 3 | Patchy rain possible | 21° /12° | 0.3 mm | 5 | |
| May 4 |  Moderate or heavy rain shower | 17° /11° | 3.8 mm | 5 | |
| May 5 | Patchy rain possible | 16° /11° | 1.2 mm | 4 | |
| May 6 |  Overcast | 19° /10° | 0 mm | 5 | |
| May 7 |  Cloudy | 23° /12° | 0 mm | 5 | |
| May 8 |  Sunny | 26° /12° | 0 mm | 6 | |
| May 9 | Sunny | 28° /14° | 0.1 mm | 7 | |
| May 10 | Sunny | 29° /15° | 0 mm | 7 | |
| May 11 | Sunny | 27° /16° | 0 mm | 7 | |
| May 12 | Sunny | 27° /14° | 0 mm | 7 | |
| May 13 | Sunny | 25° /14° | 0 mm | 6 | |
| May 14 | Sunny | 27° /13° | 0 mm | 7 | |
| May 15 |  Partly cloudy | 27° /13° | 0 mm | 7 | |
| May 16 | Sunny | 26° /14° | 0 mm | 6 | |
| May 17 | Sunny | 24° /14° | 0 mm | 6 | |
| May 18 | Sunny | 25° /14° | 0 mm | 6 | |
| May 19 | Partly cloudy | 27° /13° | 0 mm | 7 | |
| May 20 | Overcast | 28° /14° | 0 mm | 6 | |
| May 21 | Cloudy | 29° /15° | 0 mm | 7 | |
| May 22 | Sunny | 28° /15° | 0 mm | 7 | |
| May 23 | Partly cloudy | 25° /14° | 0 mm | 6 | |
| May 24 | Cloudy | 22° /13° | 0 mm | 5 | |
| May 25 | Cloudy | 22° /13° | 0 mm | 5 | |
| May 26 | Partly cloudy | 24° /13° | 0 mm | 6 | |
| May 27 | Partly cloudy | 26° /13° | 0 mm | 6 | |
| May 28 | Overcast | 26° /13° | 0 mm | 6 | |
| May 29 | Sunny | 26° /14° | 0 mm | 7 | |
| May 30 | Sunny | 29° /16° | 0.3 mm | 7 | |
| May 31 | Patchy rain possible | 27° /16° | 0.4 mm | 6 | |
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Important Notice
Our weather forecast for Riverside 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 forecast closer to your planned date for the most up-to-date weather information.
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Riverside in May - FAQ
What are the expected maximum and minimum temperatures in Riverside during May?
Enjoy moderate daytime temperatures of up to 24° 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 during May?
Rainfall in Riverside during May is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 2 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 during May?
The average wind speed in Riverside during May is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Riverside
Explore the daily rainfall trends and prepare for Riversides May weather 💧
UV exposure in Riverside during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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Where is Riverside?Get accurate weather forecasts for Riverside, located at latitude 33.953 and longitude -117.396. Stay updated with localized weather information tailored for Riverside.
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