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

Monthly weather forecast and climate
San Bruno, CA

January, like December, is another mild winter month in San Bruno, California, with temperature in the range of an average low of 43°F (6.1°C) and an average high of 55.9°F (13.3°C). January is the coldest month, with an average high-temperature of 55.9°F (13.3°C) and an average low-temperature of 43°F (6.1°C). Weather in January »
The last month of the winter, February, is another mild month in San Bruno, California, with average temperature varying between 59.4°F (15.2°C) and 45.5°F (7.5°C). In San Bruno, the average high-temperature is almost the same as in January - a still moderate 59.4°F (15.2°C). Weather in February »

March, the first month of the spring, in San Bruno, is a comfortable month, with temperature in the range of an average high of 61.2°F (16.2°C) and an average low of 46.8°F (8.2°C). In March, the average high-temperature is relatively the same as in February - a comfortable 61.2°F (16.2°C). Weather in March »

April, the same as March, is another comfortable spring month in San Bruno, California, with average temperature fluctuating between 48°F (8.9°C) and 64.2°F (17.9°C). In San Bruno, California, the average high-temperature in April is almost the same as in March - a still comfortable 64.2°F (17.9°C). Weather in April »

The last month of the spring, May, is also an enjoyable month in San Bruno, California, with average temperature fluctuating between 66.7°F (19.3°C) and 50.5°F (10.3°C). In San Bruno, the average high-temperature is relatively the same as in April - a still enjoyable 66.7°F (19.3°C). Weather in May »

The first month of the summer, June, is an agreeable month in San Bruno, California, with average temperature fluctuating between 70°F (21.1°C) and 52.9°F (11.6°C). In June, the average high-temperature is almost the same as in May - a pleasant 70°F (21.1°C). Weather in June »

July, the same as June, in San Bruno, California, is an agreeable summer month, with temperature in the range of an average low of 54.5°F (12.5°C) and an average high of 71.1°F (21.7°C). In San Bruno, the average high-temperature in July is essentially the same as in June - a still pleasant 71.1°F (21.7°C). Weather in July »

The last month of the summer, August, is also an agreeable month in San Bruno, California, with average temperature varying between 71.8°F (22.1°C) and 55.6°F (13.1°C). In August, the average high-temperature is essentially the same as in July - a still agreeable 71.8°F (22.1°C). Weather in August »

The first month of the autumn, September, is also an agreeable month in San Bruno, California, with average temperature ranging between max 72.7°F (22.6°C) and min 55°F (12.8°C). With an average high-temperature of 72.7°F (22.6°C) and an average low-temperature of 55°F (12.8°C), September is the warmest month. Weather in September »

October, the same as September, in San Bruno, California, is an agreeable autumn month, with average temperature ranging between max 69.6°F (20.9°C) and min 52.3°F (11.3°C). In October, the average high-temperature is practically the same as in September - a still agreeable 69.6°F (20.9°C). Weather in October »

November, the last month of the autumn, in San Bruno, is another comfortable month, with average temperature fluctuating between 62.1°F (16.7°C) and 47.5°F (8.6°C). In San Bruno, California, the average high-temperature in November slightly decreases, from an agreeable 69.6°F (20.9°C) in October, to a comfortable 62.1°F (16.7°C). Weather in November »

December, the first month of the winter, in San Bruno, is still a mild month, with temperature in the range of an average high of 56.1°F (13.4°C) and an average low of 43°F (6.1°C). In San Bruno, the average high-temperature marginally drops, from an enjoyable 62.1°F (16.7°C) in November, to a mild 56.1°F (13.4°C). Weather in December »

What is the coldest month in San Bruno?

January is the coldest month in San Bruno, California, with an average high-temperature of 55.9°F (13.3°C) and an average low-temperature of 43°F (6.1°C).

How much does it rain in San Bruno?

Throughout the year, in San Bruno, 20.1" (510.9mm) of rain is accumulated.

What is the rainiest month in San Bruno?

The month with the most rainfall is January when 4.4" (113mm) of precipitation is typically aggregated.

When are the longest days in San Bruno?

With an average of 14.7h of daylight, June has the longest days of the year.

What is the driest month in San Bruno?

July is the month with the least rainfall in San Bruno, with 0" (0.8mm) of accumulated precipitation.

What is the warmest month in San Bruno?

The warmest month is September, with an average high-temperature of 72.7°F (22.6°C) and an average low-temperature of 55°F (12.8°C).

What is the month with the shortest days in San Bruno?

With an average of 9.6h of daylight, December has the shortest days of the year in San Bruno.
Average temperature - San Bruno, CA
Average rainfall - San Bruno, CA
Average daylight - San Bruno, CA

The month with the longest days is June (Average daylight: 14.7h).
The month with shortest days is December (Average daylight: 9.6h).