The temperatures in San Bernardino in April are quite cold with temperatures between 7°C and 23°C, warm clothes are a must.
The wather in San Bernardino in April can vary between cold and nice weather days. Expect a few rainy days but usually not more than 3.
Our weather forecast can give you a great sense of what weather to expect in San Bernardino in April 2025.
If you’re planning to visit San Bernardino in the near future, we highly recommend that you review the 14 day weather forecast for San Bernardino before you arrive.
Temperatures
23° / 7°
Rainy Days
1
Snowy Days
0
Dry Days
29
Rainfall
23
mm
Sun Hours
11.6
Hrs