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United States weather

Weather in San Bernardino, California for March 2026

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

    Temperatures

  • Until now, March 2026 in San Bernardino has been significantly warmer than historical averages.

  • The forecast for the next days in San Bernardino predicts a temperature of 28.1 °F, which is cooler than the historical average.

  • In general, the average temperature in San Bernardino at the beginning of March is 14.7 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 30 °F by the end of March.

    • Rain 🌧️

  • The climate of San Bernardino in March is notably wet, with an average of 12 rainy days, and a total of 219.1 mm of precipitation.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
19
Dry days
Average rainy days
12
Rainy days
Average snowy days
0
Snow days
Average temperatures
16°/7°
Temperatures
Average wind speed
14 km/h
Avg max wind
Average humidity
66 %
Avg humidity

San Bernardino Weather March

Move between months or click on a day
February
April
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Patchy rain possible
17°
2
Light rain shower
13°
3
Patchy rain possible
15°
4
Patchy rain possible
17°
5
Overcast
17°
6
Light drizzle
12°
7
Light rain shower
12°
8
Sunny
19°
9
Overcast
20°
10
Cloudy
18°
11
Partly cloudy
18°
12
Partly cloudy
20°
13
Sunny
19°
14
Sunny
16°
15
Patchy rain possible
20°
16
Patchy rain possible
23°
17
Patchy rain possible
23°
18
Patchy light rain with thunder
24°
19
Sunny
26°
20
Sunny
26°
21
Sunny
36°
22
Sunny
31°
23
Sunny
32°
24
Sunny
32°
25
Sunny
32°
26
Sunny
32°
27
Sunny
35°
28
Sunny
34°
29
Partly cloudy
32°
30
Partly cloudy
24°
31
Sunny
21°

Temperatures trend during March in San Bernardino

See the weather trend as well as the moving average line

March weather in San Bernardino day by day

Click on a date for more information
February April
Date Weather Temperatures Rain UV More
Mar. 1 Patchy rain possible
Patchy rain possible
 17° /9° 0.3 mm 3
Mar. 2 Light rain shower
Light rain shower
 13° /7° 9 mm 3
Mar. 3 Patchy rain possible
Patchy rain possible
 15° /6° 0.5 mm 3
Mar. 4 Patchy rain possible
Patchy rain possible
 17° /7° 0 mm 4
Mar. 5 Overcast
Overcast
 17° /6° 14.6 mm 4
Mar. 6 Light drizzle
Light drizzle
 12° /6° 35.8 mm 3
Mar. 7 Light rain shower
Light rain shower
 12° /5° 4.2 mm 3
Mar. 8 Sunny
Sunny
 19° /3° 0 mm 5
Mar. 9 Overcast
Overcast
 20° /8° 0 mm 5
Mar. 10 Cloudy
Cloudy
 18° /8° 0 mm 5
Mar. 11 Partly cloudy
Partly cloudy
 18° /6° 9.8 mm 4
Mar. 12 Partly cloudy
Partly cloudy
 20° /8° 19.9 mm 4
Mar. 13 Sunny
Sunny
 19° /8° 33.4 mm 4
Mar. 14 Sunny
Sunny
 16° /8° 1.9 mm 4
Mar. 15 Patchy rain possible
Patchy rain possible
 20° /7° 0.1 mm 4
Mar. 16 Patchy rain possible
Patchy rain possible
 23° /7° 0.1 mm 5
Mar. 17 Patchy rain possible
Patchy rain possible
 23° /10° 0 mm 4
Mar. 18 Patchy light rain with thunder
Patchy light rain with thunder
 24° /10° 0.3 mm 5
Mar. 19 Sunny
Sunny
 26° /12° 0 mm 6
Mar. 20 Sunny
Sunny
 26° /13° 0 mm 6
Mar. 21 Sunny
Sunny
 36° /18° 0 mm 1.8
Mar. 22 Sunny
Sunny
 31° /17° 0 mm 1.8
Mar. 23 Sunny
Sunny
 32° /16° 0 mm 2
Mar. 24 Sunny
Sunny
 32° /17° 0 mm 2
Mar. 25 Sunny
Sunny
 32° /14° 0 mm 2.1
Mar. 26 Sunny
Sunny
 32° /13° 0 mm 0
Mar. 27 Sunny
Sunny
 35° /17° 0 mm 6
Mar. 28 Sunny
Sunny
 34° /18° 0 mm 6
Mar. 29 Partly cloudy
Partly cloudy
 32° /17° 0 mm 6
Mar. 30 Partly cloudy
Partly cloudy
 24° /14° 0 mm 5
Mar. 31 Sunny
Sunny
 21° /11° 0 mm 4
Next
Important Notice
Our weather forecast for San Bernardino in March 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 March - FAQ

What are the expected maximum and minimum temperatures in San Bernardino during March?

Enjoy moderate daytime temperatures of up to 16° and cooler nights around 7°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in San Bernardino during March?

Significant rainfall exceeding 219.1 mm is expected in San Bernardino during March, occurring over more than 12 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in San Bernardino during March?

The average wind speed in San Bernardino during March is 14 km/h, suggesting breezy to windy conditions, depending on your activities.

March rainfall patterns in San Bernardino

Explore the daily rainfall trends and prepare for San Bernardinos March weather 💧
Typically, San Bernardino has 12 rainy days in March with a total of 219.1 mm of rainfall.

UV exposure in San Bernardino during March

Stay informed about UV levels for safe outdoor activities throughout the month of March ☀️

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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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