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United States weather

Weather in San Bernardino, California for January 2027

Your guide to San Bernardino weather in January - trends and predictions

    Temperatures

  • In general, the average temperature in San Bernardino at the beginning of January is 14.4 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 16.7 °C by the end of January.

    • Rain 🌧️

  • With an average of 4 rainy days, San Bernardino experiences minimal rainfall in January.

    • More

  • Is January a good time to visit San Bernardino? check out the best time to travel to San Bernardino page.

  • ✨ Is January a good time to visit San Bernardino? – Ask the AI Weatherman

Average dry days
27
Dry days
Average rainy days
4
Rainy days
Average snowy days
0
Snow days
Average temperatures
16°/6°
Temperatures
Average wind speed
10 km/h
Avg max wind
Average humidity
46 %
Avg humidity

San Bernardino Weather January

Move between months or click on a day
December
February
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Heavy rain
16°
2
Light rain
17°
3
Moderate rain
14°
4
Heavy rain
13°
5
Moderate rain
14°
6
Sunny
16°
7
Patchy rain possible
11°
8
Partly cloudy
11°
9
Sunny
15°
10
Sunny
15°
11
Sunny
15°
12
Sunny
15°
13
Sunny
16°
14
Sunny
18°
15
Sunny
18°
16
Sunny
19°
17
Partly cloudy
15°
18
Sunny
20°
19
Sunny
21°
20
Patchy rain possible
17°
21
Light rain
14°
22
Moderate rain
14°
23
Patchy rain possible
14°
24
Overcast
15°
25
Overcast
14°
26
Moderate rain
14°
27
Moderate rain
16°
28
Cloudy
16°
29
Partly cloudy
17°
30
Overcast
19°
31
Partly cloudy
20°

Temperatures trend during January in San Bernardino

See the weather trend as well as the moving average line

January weather in San Bernardino day by day

Click on a date for more information
December February
Date Weather Temperatures Rain UV More
Jan. 1 Heavy rain
Heavy rain
 16° /9° 93.7 mm 2.9
Jan. 2 Light rain
Light rain
 17° /8° 5.2 mm 2.9
Jan. 3 Moderate rain
Moderate rain
 14° /9° 6.3 mm 2
Jan. 4 Heavy rain
Heavy rain
 13° /6° 25.4 mm 2.9
Jan. 5 Moderate rain
Moderate rain
 14° /6° 12.9 mm 2.9
Jan. 6 Sunny
Sunny
 16° /6° 0 mm 2.9
Jan. 7 Patchy rain possible
Patchy rain possible
 11° /4° 0.7 mm 2
Jan. 8 Partly cloudy
Partly cloudy
 11° /3° 0 mm 3
Jan. 9 Sunny
Sunny
 15° /4° 0 mm 3
Jan. 10 Sunny
Sunny
 15° /3° 0 mm 3
Jan. 11 Sunny
Sunny
 15° /6° 0.1 mm 3
Jan. 12 Sunny
Sunny
 15° /4° 0 mm 3
Jan. 13 Sunny
Sunny
 16° /5° 0 mm 3
Jan. 14 Sunny
Sunny
 18° /5° 0 mm 3
Jan. 15 Sunny
Sunny
 18° /8° 0 mm 3
Jan. 16 Sunny
Sunny
 19° /9° 0 mm 3.2
Jan. 17 Partly cloudy
Partly cloudy
 15° /7° 0 mm 3
Jan. 18 Sunny
Sunny
 20° /6° 0 mm 3.3
Jan. 19 Sunny
Sunny
 21° /7° 0 mm 3
Jan. 20 Patchy rain possible
Patchy rain possible
 17° /8° 1.8 mm 3
Jan. 21 Light rain
Light rain
 14° /7° 3.4 mm 2
Jan. 22 Moderate rain
Moderate rain
 14° /7° 7.3 mm 3
Jan. 23 Patchy rain possible
Patchy rain possible
 14° /7° 0 mm 3
Jan. 24 Overcast
Overcast
 15° /5° 0 mm 3
Jan. 25 Overcast
Overcast
 14° /5° 0 mm 2
Jan. 26 Moderate rain
Moderate rain
 14° /7° 17.9 mm 3
Jan. 27 Moderate rain
Moderate rain
 16° /7° 13.8 mm 3
Jan. 28 Cloudy
Cloudy
 16° /7° 0 mm 3
Jan. 29 Partly cloudy
Partly cloudy
 17° /7° 0 mm 3.8
Jan. 30 Overcast
Overcast
 19° /7° 0 mm 3
Jan. 31 Partly cloudy
Partly cloudy
 20° /8° 0 mm 3.9
Next
Important Notice
Our weather forecast for San Bernardino in January is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the San Bernardino forecast closer to your planned date for the most up-to-date weather information.
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San Bernardino in January - FAQ

What are the expected maximum and minimum temperatures in San Bernardino during January?
Enjoy moderate daytime temperatures of up to 16° and cooler nights around 6°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in San Bernardino during January?
Significant rainfall exceeding 188.4 mm is expected in San Bernardino during January, occurring over more than 4 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in San Bernardino during January?
The average wind speed in San Bernardino during January is 10 km/h, suggesting breezy to windy conditions, depending on your activities.

January rainfall patterns in San Bernardino

Explore the daily rainfall trends and prepare for San Bernardinos January weather 💧
Typically, San Bernardino has 4 rainy days in January with a total of 188.4 mm of rainfall.

UV exposure in San Bernardino during January

Stay informed about UV levels for safe outdoor activities throughout the month of January ☀️
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Location coordinates Where is San Bernardino?

Get accurate weather forecasts for San Bernardino, located at latitude 34.108 and longitude -117.29. Stay updated with localized weather information tailored for San Bernardino.

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