16 to 33°C
temperature
3591 hours
sunshine per day
119 mm
rain
323 days
dry
42 days
rain
0 days
snow

Climate of San Bernardino

San Bernardino has a mediterranean climate. The summers are warm and dry, and the temperature is cold in the winter. The average annual temperature for San Bernardino is 24° degrees and there is about 119 mm of rain in a year. It is dry for 308 days a year with an average humidity of 47% and an UV-index of 5.

Climate averages for the whole year

  • Day: the average daily temperature during the day is between 16°C and 33°C
  • Night:the average nighttime temperature is between 6°C and 18°C
  • Rain: it rains 42 days and there is a total of approximately 119 mm rainfall
  • Sun hours: throughout the year there are 3591 sun hours
Maximum temperature: between 16°C and 33°C
Warmest month: 33°C in August
Coldest month: 16°C in December
Night temperature: between 6°C and 18°C
Dry days: 323 days
Days with rain: 42 days
Days with snow: 0 days
Total rain sum: 119 mm
Hours of sunshine: 3591 hours

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Temperature graph

This graph shows the average maximum temperature (red) and minimum temperature (blue) for San Bernardino.

Precipitation graph

This graph shows the average amount of rainfall per month for San Bernardino.

Climate table of San Bernardino

In this climate table you can see at a glance what the average weather per month is for San Bernardino. The data has been collected over a 30-year period, from which an average per month has been derived. From year to year the differences may be larger or smaller, but with this climate table you have a good idea of what the weather for San Bernardino might be like in a given month.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Day temp. (°C) 17 17 20 22 24 29 32 33 31 25 20 16
Night temp. (°C) 7 6 8 9 11 14 18 18 17 13 9 6
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Precipitation (mm) 24 34 10 4 2 1 6 3 1 3 7 24
Days with rain 6 6 5 5 3 1 3 2 1 2 3 5
Dry days 25 22 26 25 28 29 28 29 29 29 27 26
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Sun hours per day 7 7 9 12 12 12 12 12 11 9 7 7
Wind force (Bft) 2 2 2 2 2 2 2 2 2 2 2 2
UV-index 3 4 4 5 5 6 7 6 6 5 4 3

Best time to visit San Bernardino

The best time to visit San Bernardino in the state of California is from March through July and September through November. In this period you have a hot temperature and almost no precipitation. The highest average temperature in San Bernardino is 33°C in August and the lowest is 16°C in December.

Climate of San Bernardino by month

What is the average climate in a given month for San Bernardino? Click on a month to see all monthly averages for sunshine, maximum and minimum temperatures, percent chance of rain per day, snowfall and number of rainy days.

San Bernardino weather experiences

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