San Bernardino weather in September (California, United States of America)
Curious about the September weather in San Bernardino? Check out this comprehensive weather guide.
In September, San Bernardino typically experiences very high temperatures and almost no rainfall. September is a summer month. Throughout the day, temperatures typically settle at around 34°C. But by evening, they drop to around 17°C. Remember, these are typical temperatures, and certain days could be even hotter. Ensure you wear appropriate clothing to handle the warmth.
San Bernardino in September usually receives almost no rainfall, averaging around 4.8 mm for the month. When we look at the climate data from the last 30 years, we can expect around 1 day of rain.
The city usually sees around 290 hours of sunlight, indicating many sunny days.
If you prefer dry days with pleasant temperatures, January, February, March, April, May, June, October and November typically offer the best circumstances. While July and August tend to showcase 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 September
Min Temperature
17°C
Max Temperature
34°C
Chance of Rain
3%
Precipitation
4.8 mm
Rainy days
1 day
Sunshine
290 hours *
Percentage Sunshine
*
Where to go in the United States of America in September
Find out more about the weather in the United States of America in September 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 September?
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 September.
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.
