Weather in Fontana: August
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Average day temperature: | 93.5°F |
| Average night temperature: | 70.8°F | |
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Number of sunny days: | 28 days |
| Day length: | 12.9 - 13.8 hours | |
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Number of rainy days: | 0 days |
| Precipitation totals: | 0.2 in. | |
| more information | ||
14 days
forecast
forecast
| Fontana |
weather in
September
September
| Fontana |
Air temperature in August, °F
Show year:
2025
2024
2023
The highest day temperature during August of 2025 was 101°F. At the same time the lowest night temperature was 64°F. Daily and nightly averages during August were 92.2°F and 72.3°F.
Sunny, partly cloudy and cloudy days
Mostly all days in August are sunny but cloudy days are also possible.
Precipitation total in August, in.
Precipitation total value in Fontana in August is 0.2 in. Other months of the year show relatively similar values.
Wind speed in August, mph
The average wind speed value in August is 4.4 mph
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 August is: 12.3.
Best time for vacation in Fontana
Fontana on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Fontana
Local time: 22:41
December 29, monday
0000
54°F
S
8 mph
8 mph
0300
54°F
S
10 mph
10 mph
0600
45°F
S
11 mph
11 mph
0900
45°F
S
10 mph
10 mph
1200
57°F
S
13 mph
13 mph
1500
61°F
S
14 mph
14 mph
1800
54°F
S
11 mph
11 mph
2100
48°F
SW
7 mph
7 mph
