Best time to go to San Bernardino National Forest Average weather of San Bernardino National Forest, California

When is the best time to go to San Bernardino National Forest?

When is the best time to go to San Bernardino National Forest? Here's some information to help you in your decision:

The best months for good weather in San Bernardino National Forest are April, May, June, July, August, September, October and November
On average, the warmest months are June, July, August and September
San Bernardino National Forest has dry periods in May, June, September, October and November
December is the coldest month of the year

Annual weather in San Bernardino National Forest

For full information about the climate and weather in San Bernardino National Forest a specific month, click on the corresponding line below:

Month			Our opinion
January	43°F/56°F	1in	tolerable weather	San Bernardino National Forest in january
February	43°F/56°F	0.9in	tolerable weather	San Bernardino National Forest in february
March	49°F/59°F	0.6in	tolerable weather	San Bernardino National Forest in march
April	52°F/67°F	0.6in	good weather	San Bernardino National Forest in april
May	58°F/72°F	0.2in	perfect weather	San Bernardino National Forest in may
June	68°F/83°F	0.1in	perfect weather	San Bernardino National Forest in june
July	74°F/88°F	0.9in	perfect weather	San Bernardino National Forest in july
August	74°F/88°F	0.6in	perfect weather	San Bernardino National Forest in august
September	70°F/83°F	0.4in	perfect weather	San Bernardino National Forest in september
October	59°F/72°F	0.2in	perfect weather	San Bernardino National Forest in october
November	50°F/63°F	0.4in	good weather	San Bernardino National Forest in november
December	43°F/54°F	0.9in	bad weather	San Bernardino National Forest in december

Weather and climate in San Bernardino National Forest

San Bernardino National Forest enjoys a warm-summer Mediterranean climate in accordance with the Köppen-Geiger classification. The yearly average maximum temperature in San Bernardino National Forest is 70°F (ranging from 54°F in december to 88°F in august). Annual rainfall is 6.4in, with a minimum of 0.1in in june and a maximum of 1in in january.

Between january and march the climate is passable, but still OK. It is for example 59°F as maximum temperature in march and it rains about 3% of the time in march.
In april the climate is beautiful. In average, on the morning it is 52°F.
Between the months of may and october the climate is perfect. The record temperature this month is 88°F and you can expect to have 0.2in of rainfall/month during this period.
In the month of november the climate is favorable. In average, on the morning it is 50°F and it rains about 2% of the time in november.
In the month of december the climate is unfavorable. In average, on the morning it is 43°F and you can expect to have 0.9in of rainfall/month during this period.

Charts: temperature and rainfall in San Bernardino National Forest

In the charts below, you can see the following seasonal norms for the city of San Bernardino National Forest: the minimum and maximum outdoor temperature, the risk and amount of monthly rainfall, daily average sunshine, and relative humidity for each month of the year.

Outside temperature

Precipitation (rainfall)

Daily sunshine hours

Humidity

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