San Bernardino
California, USA
Long-term weather forecast
Long-term weather forecast

August weather forecast and climate
San Bernardino, CA

Scenic settlement spot on the foot of the iconic San Bernardino Mountains in California, with a view of the snow peaks of the San Gorgiono mountains
Scenic settlement spot on the foot of the iconic San Bernardino Mountains in California, with a view of the snow peaks of the San Gorgiono mountains
The last month of the summer, August, is another very hot month in San Bernardino, California, with temperature in the range of an average low of 64.2°F (17.9°C) and an average high of 97.3°F (36.3°C).

Temperature

The warmest month is August, with an average high-temperature of 97.3°F (36.3°C) and an average low-temperature of 64.2°F (17.9°C).

Rainfall

In August, in San Bernardino, California, the rain falls for 0.5 days. Throughout August, 0.1" (3.3mm) of precipitation is accumulated. In San Bernardino, during the entire year, the rain falls for 38.3 days and collects up to 16" (406.8mm) of precipitation.

Daylight

The average length of the day in August in San Bernardino is 13.4h.

What is the warmest month in San Bernardino?

With an average high-temperature of 97.3°F (36.3°C) and an average low-temperature of 64.2°F (17.9°C), August is the warmest month in San Bernardino.

What is the temperature in August in San Bernardino?

In San Bernardino, in August, the average high-temperature is 97.3°F (36.3°C), and the average low-temperature is 64.2°F (17.9°C).

How many days does it rain in August in San Bernardino?

In San Bernardino, in August, it is raining for 0.5 days, with typically 0.1" (3.3mm) of accumulated precipitation.

What is the average length of the day in August in San Bernardino?

The average length of the day in August is 13.4h.
Average temperature in August - San Bernardino, CA
  • Average high temperature in August: 97.3°F

The warmest month (with the highest average high temperature) is August (97.3°F).
The month with the lowest average high temperature is December (67.1°F).

  • Average low temperature in August: 64.2°F

The month with the highest average low temperature is August (64.2°F).
The coldest month (with the lowest average low temperature) is December (41.1°F).

Average rainfall in August - San Bernardino, CA
  • Average rainfall in August: 0.1"

The wettest month (with the highest rainfall) is February (4.1").
The driest month (with the lowest rainfall) is July (0").

Average rainfall days in August - San Bernardino, CA
  • Average rainfall days in August: 0.5 days

The month with the highest number of rainy days is February (7.2 days).
Months with the lowest number of rainy days are July and August (0.5 days).

Average daylight in August - San Bernardino, CA
  • Average daylight in August: 13.4h

The month with the longest days is June (Average daylight: 14.4h).
The month with shortest days is December (Average daylight: 9.9h).