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San Bernardino weather in August

Weather in San Bernardino: August


	Average day temperature:	94.9°F
	Average night temperature:	72.0°F

	Number of sunny days:	28 days
	Day length:	12.9 - 13.8 hours

	Number of rainy days:	0 days
	Precipitation totals:	0.2 in.

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14 days
forecast

San Bernardino

weather in
September

San Bernardino

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May
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August

September
October
November
December

Show year:

2024

2023

2022

102

119

136

Day temperature

Night temperature

The highest day temperature during August of 2024 was 103°F. At the same time the lowest night temperature was 50°F. Daily and nightly averages during August were 93.2°F and 62.3°F.

	Sunny days
	Partly cloudy days
	Cloudy days

93%

Almost all days of August in San Bernardino are sunny. Cloudy days are rare.

jan

feb

mar

apr

may

jun

jul

aug

sep

oct

nov

dec

0.0

0.2

0.3

0.5

0.7

0.9

1.0

1.2

1.4

Precipitation total value in San Bernardino in August is 0.2 in. Other months of the year show relatively similar values.

jan

feb

mar

apr

may

jun

jul

aug

sep

oct

nov

dec

0.0

0.8

1.6

2.4

3.3

4.1

4.9

5.7

3.5

3.9

3.7

3.9

4.3

4.6

4.8

4.6

4.7

4.3

4.2

3.5

3.9

3.7

3.9

4.2

4.3

4.6

4.8

4.6

4.7

4.3

4.2

The average wind speed value in August is 4.2 mph

jan

feb

mar

apr

may

jun

jul

aug

sep

oct

nov

dec

0.0

2.3

4.6

6.9

9.2

11.5

13.7

16.0

18.3

6.7

8.4

9.8

11.3

13.2

13.4

12.2

10.8

7.6

7.4

6.7

8.4

9.8

11.3

12.3

13.2

13.4

12.2

10.8

7.6

7.4

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 August is: 12.3.