Sunnyvale Weather in March

The climate in Sunnyvale during March can be summarized as mild and reasonably dry.

March is in the spring in Sunnyvale and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a cool 18°C (63°F), whilst at night 7°C (45°F) is normal.

On average March is the 3rd wettest month of the year in Sunnyvale with around 65mm 2.5 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.

On the flip side this corresponds to an average of 9.4 hours of sunshine per day.

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Sunnyvale in March 2024.