Best time to go to Silicon Valley Average weather of Silicon Valley, California

When is the best time to go to Silicon Valley?

When is the best time to go to Silicon Valley? Here's some information to help you in your decision:

The best months for good weather in Silicon Valley are March, April, May, June, July, August, September, October and November
On average, the warmest months are June, July, August and September
Silicon Valley has dry periods in May, June, July, August and September
The coldest months are January, February and December

Annual weather in Silicon Valley

For full information about the climate and weather in Silicon Valley a specific month, click on the corresponding line below:

Month			Our opinion
January	47°F/63°F	1.9in	tolerable weather	Silicon Valley in january
February	47°F/63°F	1.9in	tolerable weather	Silicon Valley in february
March	50°F/65°F	2in	good weather	Silicon Valley in march
April	56°F/70°F	0.9in	good weather	Silicon Valley in april
May	59°F/72°F	0.4in	perfect weather	Silicon Valley in may
June	65°F/79°F	0.2in	perfect weather	Silicon Valley in june
July	67°F/83°F	0.1in	perfect weather	Silicon Valley in july
August	67°F/85°F	0in	perfect weather	Silicon Valley in august
September	65°F/83°F	0.2in	perfect weather	Silicon Valley in september
October	59°F/77°F	0.7in	perfect weather	Silicon Valley in october
November	52°F/68°F	1.3in	good weather	Silicon Valley in november
December	49°F/61°F	1.9in	tolerable weather	Silicon Valley in december

Weather and climate in Silicon Valley

Silicon Valley enjoys a warm-summer Mediterranean climate in accordance with the Köppen-Geiger classification. The yearly average maximum temperature in Silicon Valley is 72°F (ranging from 61°F in december to 85°F in august). Annual rainfall is 11.3in, with a minimum of 0in in august and a maximum of 2in in march.

Between january and february the climate is not good, but still OK. At lunchtime, it's 63°F in average and it rains about 1.9in each month.
Between march and april the climate is favorable. The record temperature this month is 97°F and it rains about 5% of the time in april.
Between the months of may and october the climate is perfect. The temperature rises to 77°F and it rains about 3% of the time in october.
In the month of november the climate is favorable. the thermometer goes up to 68°F°C and it rains in november about 1.3in.
In the month of december the climate is not good, but still OK. the thermometer goes up to 61°F°C and it rains in december about 1.9in.

Charts: temperature and rainfall in Silicon Valley

In the charts below, you can see the following seasonal norms for the city of Silicon Valley: 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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