World Resorts USA San Bernardino Weather

San Bernardino weather in January

Weather in San Bernardino: January

Average day temperature: 60.2°F
Average night temperature: 44.2°F
Number of sunny days: 20 days
Day length: 9.9 - 10.5 hours
Number of rainy days: 2 days
Precipitation totals: 0.9 in.

Air temperature in January, °F

Show year:
2025
2024
2023
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
0
12
24
36
48
60
72
84
96
Day temperature   
Night temperature

The highest day temperature during January of 2025 was 74°F. At the same time the lowest night temperature was 36°F. Day and night temperature averages during January were 61.7°F and 44.4°F.

Sunny, partly cloudy and cloudy days
Sunny days
Partly cloudy days
Cloudy days
65%
23%
13%

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

Precipitation total in January, in.

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.2
1.2

Precipitation total value in San Bernardino in January is 0.9 in. Other months of the year show relatively similar values.

Wind speed in January, mph
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
4.2
4.3
4.6
4.8
4.6
4.6
4.3
3.5
3.9
3.7
3.9
4.2
4.3
4.6
4.8
4.6
4.6
4.3
4.2

The average wind speed value in January is 4.2 mph

Average sunny hours
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
12.3
13.2
13.4
12.2
10.8
8.0
7.7
6.7
8.4
9.8
11.3
12.3
13.2
13.4
12.2
10.8
8.0
7.7
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 January is: 7.4.

Best time for vacation in San Bernardino

Sunniest months:
July 30 days
August 28 days
September 28 days
Warmest months:
July 95.7 °F
August 94.9 °F
September 91.1 °F
Coldest months:
January 60.2 °F
December 61.8 °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

Leaflet | Tiles © Esri
Places in USA:
Name
°F
+27°F
+25°F
+75°F
+75°F
+63°F
+68°F
+77°F
+28°F
+63°F
+64°F
+46°F
+66°F
+63°F
+41°F
+27°F
24 Hours Forecast
San Bernardino
Local time: 12:18
February 20, thursday
1500
72°F
S
5 mph
1800
64°F
S
7 mph
2100
54°F
SW
5 mph
February 21, friday
0000
50°F
SW
6 mph
0300
46°F
SW
6 mph
0600
45°F
S
6 mph
0900
52°F
S
4 mph
1200
68°F
SE
4 mph
Units of measurement: °C / °F