Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
Mountain View Weather in September
In Mountain View, September brings high daytime temperatures around 26°C (79°F), with nights cooling to 19°C (66°F). Expect quite a bit of rainfall this month.
Rainfall in Mountain View in September
Analyzing past climate data, one can expect approximately 18 days of rain, averaging 134 mm (5.3 in). Wet weather is a regular and significant part of this month. Frequent days of rain combined with high totals means proper waterproofs are worth packing.
Temperature in Mountain View in September
In September, Mountain View gets high temperatures, with highs of 26°C (79°F). Nights cool to around 19°C (66°F). Overall, the month follows a fairly predictable daily temperature pattern. With overnight lows of 19°C (66°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.
Sunshine in Mountain View in September
The area experiences a moderate amount of sunshine, with approximately 160 hours of sunlight expected. This means a decent mix of sun and overcast.If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Mountain View.
Mountain View Temperature in September
Min Temperature
19°C (66°F)
Max Temperature
26°C (79°F)
Chance of Rain
58%
Precipitation
134 mm (5.3 in)
Rainy days
18 days
Humidity
78% *
Sunshine
160 hours *
Percentage Sunshine
45% *
* Data from: Hilo, the United States of America (16 KM, 10 Miles).
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.
Best Places in the United States of America in September
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in September →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Mountain View in September
Warm but pleasant conditions in Mountain View in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags. Sunglasses could come in handy during the sunnier parts of your trip.
What To Do in Mountain View in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming7/10 -
Cycling7/10 -
Walking7/10 -
Camping6/10 -
Outdoor sports7/10
Mountain View 3-Day Forecast
More climate data for Mountain View
Temperature Rainfall Sunshine Humidity
See the full Mountain View climate overview or explore weather in the United States of America.
Popular in September
Where to go in September - average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Yosemite National Park is definitely worth a visit
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