San Bernardino weather in August (California, United States of America)
What can you expect from the weather in San Bernardino during August? Here's what the weather might have in store during this month.
In August, San Bernardino generally has very high temperatures and almost no rainfall. August falls within the summer season. Daytime temperatures hover around 35°C, while nights can cool down to about 18°C. Typically, it's the hottest month of the year. Make sure to come prepared with breezy outfits. Whether you're out exploring or just lounging, being prepared can make your experience in this warm month much more enjoyable.
San Bernardino in August usually receives almost no rainfall, averaging around 3.9 mm for the month. Typically around 1 day of rainfall is expected.
With around 351 hours of sunshine, the days are mostly sunny. It gives a pleasant and vibrant feel to the area.
If you prefer dry days with pleasant temperatures, August may not be the ideal month to visit San Bernardino. January, February, March, April, May, June, October and November typically offer the most optimal weather. In contrast, July and August tend to have less optimal conditions.
For an in-depth look at the yearly conditions, visit our specialized San Bernardino climate page with graphs.
San Bernardino, monthly averages in August
Min Temperature
18°C
Max Temperature
35°C
Chance of Rain
3%
Precipitation
3.9 mm
Rainy days
1 day
Sunshine
351 hours *
Percentage Sunshine
*
Where to go in the United States of America in August
Find out more about the weather in the United States of America in August and which places have the best weather conditions in this month.
perfect weather
pleasant
tolerable
unpleasant
poor
So, what should you wear in San Bernardino in August?
It's going to be warm! Consider airy clothing, t-shirts, and other summer clothes. Shorts for men made of cotton or linen are good options for staying cool.What To Do
We rated the following activities from 1 (least suitable) to 10 (best) to do in August.
Interested in more climate information?
This site provides you with all the information you need about the climate in San Bernardino.
Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find historical weather averages for many cities in the United States of America. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.
