Mountain View (CA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Mountain View.
Climate overview of Mountain View
Temperatures in Mountain View, California, United States of America, vary greatly throughout the year. September is the hottest month at 26°C (79°F), while December is the coldest at 15°C (59°F).
The city tends toward dry conditions, with around 332 mm (13 in) of rainfall per year. It does, however, have a distinct dry season from April to November, with warm summers and mild winters. The sunniest month is May, with 10.8 hours of sunshine per day on average.
Mountain View Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Mountain View - and find the best time to visit.
Monthly Temperature in Mountain View
The climate in Mountain View is known for significant temperature differences throughout the year, making the weather dynamic. Typically, average maximum daytime temperatures range from a comfortable 26°C (79°F) in September to a moderate 15°C (59°F) in the coolest month, December.
Nights vary from 14°C (57°F) in September to around 5°C (41°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Mountain View
With annual rainfall averaging 332 mm (13 in), Mountain View maintains relatively low precipitation levels throughout the seasons. The climate in Mountain View shows significant variation throughout the year. Expect moderate rainfall in December, the wettest month, with an average of 74 mm (2.9 in) of precipitation over 11 rainy days.
In contrast, the driest month July offers drier and sunnier days, with around 0 mm (0 in) of rainfall over 0 rainy days. For more details, please visit our Mountain View Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Mountain View
For those who appreciate different seasons, Mountain View serves as an ideal destination. Expect longer, more sun-filled days in May with an average of 10.8 hours of sunshine daily, and embrace the darker days in December, offering only 5.3 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Mountain View by Month
The relative humidity is high throughout the year in Mountain View.
The city experiences its highest humidity in January, reaching 80%. In June, the humidity drops to its lowest level at 71%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Mountain View
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: April, May, June, July, August, September and October
- Warmest weather: June, July, August and September
- Most sunshine: April, May, June and July
- Fewer rainy days: May, June, July, August and September
- Seasonal pattern: A distinct dry season from April to November, with warm summers and mild winters
Frequently asked questions about the climate in Mountain View
What is the best time to visit Mountain View?
April, May, June, July, August, September and October typically offer the most optimal weather in Mountain View. In contrast, January, February and December tend to have less optimal conditions. Mountain View has a distinct dry season from April to November, with warm summers and mild winters.
What temperatures can I expect in Mountain View?
Daytime highs range from 15°C (59°F) in December to 26°C (79°F) in September. Nighttime lows range from 5°C (41°F) to 14°C (57°F). Temperatures vary considerably through the year.
How much rain does Mountain View get?
Annual rainfall is around 332 mm (13 in). December is the wettest month with 74 mm (2.9 in), while July is the driest with 0 mm (0 in).
How sunny is Mountain View?
Mountain View receives around 3,058 hours of sunshine per year. May is the sunniest month with 324 hours, while December is the cloudiest with just 160 hours. Overall, Mountain View enjoys abundant sunshine.
Mountain View 3-Day Forecast
Mountain View on the map
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