Fontana
May
Weather in Fontana for May 2025
Your guide to Fontana weather in May - trends and predictions
In general, the average temperature in Fontana at the beginning of May is 21.6 °F. As the month progressed, temperatures tended to moderately rise, reaching an average of 23.6 °F by the end of May.
With an average of 4 rainy days, Fontana experiences minimal rainfall in May.
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27
Dry days
4
Rainy days
0
Snow days
24°/13°
Temperatures
16 km/h
Avg max wind
53 %
Avg humidity
Fontana in May average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  23° | 2 25° | 3 24° | 4 20° | |||
| 5  15° | 6 21° | 7 23° | 8 25° | 9 27° | 10 28° | 11 27° |
| 12 27° | 13 26° | 14 23° | 15 23° | 16  24° | 17 24° | 18 24° |
| 19 23° | 20  29° | 21 29° | 22 26° | 23 24° | 24 20° | 25 21° |
| 26 22° | 27 25° | 28 24° | 29 24° | 30 25° | 31 24° |
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Temperatures trend during May in Fontana
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 | Sunny | 23° /14° | 0 mm | 6 | |
| May 2 | Sunny | 25° /15° | 0 mm | 7 | |
| May 3 | Sunny | 24° /14° | 0 mm | 6 | |
| May 4 | Sunny | 20° /13° | 0.2 mm | 6 | |
| May 5 | Patchy rain possible | 15° /9° | 3.7 mm | 4 | |
| May 6 | Sunny | 21° /10° | 0 mm | 6 | |
| May 7 | Sunny | 23° /13° | 0 mm | 6 | |
| May 8 | Sunny | 25° /13° | 0 mm | 7 | |
| May 9 | Sunny | 27° /14° | 0 mm | 7 | |
| May 10 | Sunny | 28° /15° | 0 mm | 7 | |
| May 11 | Sunny | 27° /15° | 0 mm | 7 | |
| May 12 | Sunny | 27° /16° | 0 mm | 7 | |
| May 13 | Sunny | 26° /16° | 0 mm | 7 | |
| May 14 | Sunny | 23° /14° | 0 mm | 6 | |
| May 15 | Sunny | 23° /12° | 0 mm | 6 | |
| May 16 | Partly cloudy | 24° /13° | 0 mm | 6 | |
| May 17 | Partly cloudy | 24° /13° | 0 mm | 6 | |
| May 18 | Sunny | 24° /13° | 0 mm | 6 | |
| May 19 | Sunny | 23° /12° | 0 mm | 6 | |
| May 20 | Cloudy | 29° /15° | 0 mm | 6 | |
| May 21 | Cloudy | 29° /17° | 0 mm | 6 | |
| May 22 | Sunny | 26° /15° | 0 mm | 7 | |
| May 23 | Sunny | 24° /13° | 0 mm | 7 | |
| May 24 | Patchy rain possible | 20° /12° | 0.2 mm | 5 | |
| May 25 | Partly cloudy | 21° /12° | 0.1 mm | 5 | |
| May 26 | Partly cloudy | 22° /11° | 0.1 mm | 6 | |
| May 27 | Sunny | 25° /12° | 0 mm | 7 | |
| May 28 | Partly cloudy | 24° /13° | 0 mm | 7 | |
| May 29 | Patchy rain possible | 24° /14° | 0.4 mm | 6 | |
| May 30 | Patchy rain possible | 25° /14° | 0.6 mm | 6 | |
| May 31 | Patchy rain possible | 24° /13° | 0.3 mm | 6 | |
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Important Notice
Our weather forecast for Fontana 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 Fontana forecast closer to your planned date for the most up-to-date weather information.
Fontana in May - FAQ
What are the expected maximum and minimum temperatures in Fontana during May?
Enjoy moderate daytime temperatures of up to 24° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Fontana during May?
Rainfall in Fontana during May is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 4 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 Fontana during May?
The average wind speed in Fontana during May is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Fontana
Explore the daily rainfall trends and prepare for Fontanas May weather 💧
UV exposure in Fontana during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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