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San Bernardino weather in September

Weather in San Bernardino: September

Average day temperature: 91.6°F
Average night temperature: 70.3°F
Number of sunny days: 28 days
Day length: 11.9 - 12.9 hours
Number of rainy days: 0 days
Precipitation totals: 0.1 in.

Air temperature in September, °F

Show year:
2023
2022
2021

The highest day temperature during September of 2023 was 95°F. At the same time the lowest night temperature was 54°F. Day and night temperature averages during September were 83.3°F and 65.7°F.

Sunny, partly cloudy and cloudy days

Mostly all days in September are sunny but cloudy days are also possible.

Precipitation total in September, in.

Precipitation total value in San Bernardino in September is 0.1 in. Other months of the year show relatively similar values.

Wind speed in September, mph

The average wind speed value in September is 3.8 mph It makes September one of the least windy months of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in September is: 11.4.

Best time for vacation in San Bernardino

Sunniest months:
July 30 days
August 28 days
September 28 days
Warmest months:
July 95.6 °F
August 95.3 °F
September 91.6 °F
Coldest months:
January 59.9 °F
December 60.2 °F
February 62.2 °F
Rainiest months:
January 2 days
February 2 days
March 2 days
Windiest months:
May 4.8 mph
March 4.6 mph
April 4.6 mph

San Bernardino on a weather map

San Bernardino
+72°F
E 4 mph
Feels like: +75°F
Precip.: 0%
Places in USA:
Name
°F
+55°F
+70°F
+75°F
+79°F
+72°F
+70°F
+86°F
+66°F
+93°F
+66°F
+72°F
+84°F
+88°F
+91°F
+52°F
24 Hours Forecast
San Bernardino
Local time: 13:09
May 09, thursday
1500
81°F
SE
1 mph
1800
75°F
SE
7 mph
2100
55°F
N
1 mph
May 10, friday
0000
52°F
NW
1 mph
0300
50°F
SW
1 mph
0600
50°F
S
2 mph
0900
70°F
SE
2 mph
1200
79°F
E
5 mph
Units of measurement: °C / °F