Sunnyvale
California, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Sunnyvale, CA

The perfect clear and blue sky, trees, buildings, and cute water fountain all reflected in the calm pool of water with birds, a cool and sunny day
The perfect clear and blue sky, trees, buildings, and cute water fountain all reflected in the calm pool of water with birds, a cool and sunny day
January, the same as December, in Sunnyvale, California, is a moderate winter month, with average temperature fluctuating between 39.9°F (4.4°C) and 57.9°F (14.4°C). The coldest months are January and December, with an average high-temperature of 57.9°F (14.4°C). Weather in January »
The last month of the winter, February, is an enjoyable month in Sunnyvale, California, with average temperature fluctuating between 62.1°F (16.7°C) and 43°F (6.1°C). In Sunnyvale, the average high-temperature is almost the same as in January - a comfortable 62.1°F (16.7°C). Weather in February »

March, the first month of the spring, in Sunnyvale, is also an enjoyable month, with average temperature varying between 46°F (7.8°C) and 64°F (17.8°C). In March, the average high-temperature is almost the same as in February - a still enjoyable 64°F (17.8°C). Weather in March »

April is an agreeable spring month in Sunnyvale, California, with average temperature ranging between min 46.9°F (8.3°C) and max 69.1°F (20.6°C). In Sunnyvale, the average high-temperature is practically the same as in March - a pleasant 69.1°F (20.6°C). Weather in April »

May, the last month of the spring, in Sunnyvale, is another pleasant month, with average temperature varying between 51.1°F (10.6°C) and 73°F (22.8°C). In May, the average high-temperature is essentially the same as in April - a still agreeable 73°F (22.8°C). Weather in May »

The first month of the summer, June, is a moderately hot month in Sunnyvale, California, with temperature in the range of an average high of 77°F (25°C) and an average low of 55°F (12.8°C). In June, the average high-temperature is almost the same as in May - a warm 77°F (25°C). Weather in June »

July, like June, in Sunnyvale, California, is another warm summer month, with average temperature ranging between max 79°F (26.1°C) and min 57°F (13.9°C). The warmest months are July and August, with an average high-temperature of 79°F (26.1°C). Weather in July »

August, the last month of the summer, in Sunnyvale, is also a moderately hot month, with average temperature varying between 57°F (13.9°C) and 79°F (26.1°C). The warmest months are July and August, with an average high-temperature of 79°F (26.1°C). Weather in August »

September, the first month of the autumn, in Sunnyvale, is also a moderately hot month, with average temperature fluctuating between 78.1°F (25.6°C) and 55°F (12.8°C). In September, the average high-temperature is practically the same as in August - a still moderately hot 78.1°F (25.6°C). Weather in September »

October, like September, is an agreeable autumn month in Sunnyvale, California, with temperature in the range of an average low of 50°F (10°C) and an average high of 73°F (22.8°C). In October, the average high-temperature is relatively the same as in September - a pleasant 73°F (22.8°C). Weather in October »

The last month of the autumn, November, is another comfortable month in Sunnyvale, California, with average temperature varying between 64°F (17.8°C) and 44.1°F (6.7°C). In Sunnyvale, California, the average high-temperature drops, from a pleasant 73°F (22.8°C) in October, to an enjoyable 64°F (17.8°C). Weather in November »

The first month of the winter, December, is still a mild month in Sunnyvale, California, with temperature in the range of an average high of 57.9°F (14.4°C) and an average low of 39°F (3.9°C). The coldest months are January and December, with an average high-temperature of 57.9°F (14.4°C). Weather in December »

What are the coldest months in Sunnyvale?

The coldest months in Sunnyvale, California, are January and December, with an average high-temperature of 57.9°F (14.4°C).

How much does it rain in Sunnyvale?

Throughout the year, in Sunnyvale, California, 15.7" (399.1mm) of rain is accumulated.

What is the wettest month in Sunnyvale?

The month with the most rainfall in Sunnyvale is January when 3.2" (82.3mm) of precipitation is typically aggregated.

When are the longest days in Sunnyvale?

The month with the longest days in Sunnyvale is June, with an average of 14.7h of daylight.

What is the warmest month in Sunnyvale?

July and August, with an average high-temperature of 79°F (26.1°C), are warmest months in Sunnyvale, California.

What is the driest month in Sunnyvale?

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

What is the month with the shortest days in Sunnyvale?

The month with the shortest days in Sunnyvale is December, with an average of 9.6h of daylight.
Average rainfall - Sunnyvale, CA
Average daylight - Sunnyvale, CA

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