San Bernardino (CA)
April
Weather in San Bernardino, California for April 2026
Your guide to San Bernardino weather in April - trends and predictions
In general, the average temperature in San Bernardino at the beginning of April is 18.3 °F. As the month progressed, temperatures tended to moderately rise, reaching an average of 19.4 °F by the end of April.
San Bernardino experiences moderate rainfall in April, with an average of 6 rainy days and a total precipitation of 56.9 mm.
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Temperatures
Rain 🌧️
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24
Dry days
6
Rainy days
0
Snow days
21°/9°
Temperatures
17 km/h
Avg max wind
54 %
Avg humidity
San Bernardino Weather April
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Temperatures trend during April in San Bernardino
See the weather trend as well as the moving average line
April weather in San Bernardino day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Apr. 1 |  Sunny | 17° /6° | 0 mm | 4 | |
| Apr. 2 | Sunny | 19° /5° | 0 mm | 6 | |
| Apr. 3 | Sunny | 18° /7° | 0 mm | 5 | |
| Apr. 4 |  Patchy rain possible | 17° /5° | 0.2 mm | 5 | |
| Apr. 5 | Light rain shower | 17° /4° | 4.8 mm | 5 | |
| Apr. 6 | Sunny | 20° /6° | 0 mm | 6 | |
| Apr. 7 |  Partly cloudy | 20° /8° | 0 mm | 6 | |
| Apr. 8 | Sunny | 22° /7° | 0 mm | 6 | |
| Apr. 9 | Sunny | 27° /11° | 0 mm | 7 | |
| Apr. 10 | Sunny | 28° /13° | 0 mm | 7 | |
| Apr. 11 | Sunny | 29° /15° | 0 mm | 7 | |
| Apr. 12 | Sunny | 24° /12° | 0 mm | 6 | |
| Apr. 13 | Light rain shower | 20° /9° | 1.7 mm | 5 | |
| Apr. 14 | Light rain shower | 20° /8° | 3.2 mm | 5 | |
| Apr. 15 | Patchy rain possible | 20° /7° | 0.3 mm | 5 | |
| Apr. 16 | Sunny | 21° /8° | 0 mm | 6 | |
| Apr. 17 | Partly cloudy | 18° /9° | 43.8 mm | 5 | |
| Apr. 18 |  Overcast | 20° /11° | 1.6 mm | 5 | |
| Apr. 19 | Sunny | 24° /8° | 0 mm | 6 | |
| Apr. 20 | Sunny | 25° /10° | 0 mm | 7 | |
| Apr. 21 | Sunny | 26° /13° | 0 mm | 6 | |
| Apr. 22 | Sunny | 24° /12° | 0 mm | 7 | |
| Apr. 23 | Patchy rain possible | 21° /11° | 0 mm | 5 | |
| Apr. 24 | Partly cloudy | 20° /7° | 0 mm | 6 | |
| Apr. 25 | Patchy rain possible | 14° /7° | 1 mm | 4 | |
| Apr. 26 | Patchy rain possible | 13° /6° | 0.4 mm | 3 | |
| Apr. 27 | Sunny | 18° /6° | 0 mm | 5 | |
| Apr. 28 | Sunny | 22° /8° | 0 mm | 5 | |
| Apr. 29 | Sunny | 25° /10° | 0 mm | 7 | |
| Apr. 30 | Sunny | 24° /12° | 0 mm | 6 | |
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Important Notice
Our weather forecast for San Bernardino in April 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 San Bernardino forecast closer to your planned date for the most up-to-date weather information.
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San Bernardino in April - FAQ
What are the expected maximum and minimum temperatures in San Bernardino during April?
Enjoy moderate daytime temperatures of up to 21° and cooler nights around 9°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in San Bernardino during April?
Moderate rainfall is anticipated in San Bernardino during April, with a total of 56.9 mm spread over approximately 6 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in San Bernardino during April?
The average wind speed in San Bernardino during April is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
April rainfall patterns in San Bernardino
Explore the daily rainfall trends and prepare for San Bernardinos April weather 💧
UV exposure in San Bernardino during April
Stay informed about UV levels for safe outdoor activities throughout the month of April ☀️
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Where is San Bernardino?Get accurate weather forecasts for San Bernardino, located at latitude 34.108 and longitude -117.29. Stay updated with localized weather information tailored for San Bernardino.
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