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.
Walnut Creek Weather in September
In Walnut Creek, September brings high daytime temperatures around 29°C (84°F), with nights cooling to 13°C (55°F). Minimal rainfall is to be expected.
Rainfall in Walnut Creek in September
Historically, September sees about a single day of rain, with a monthly average of 2.8 mm (0.1 in). If rain does fall, it tends to be very light and barely worth getting out an umbrella for.
Temperature in Walnut Creek in September
If you're visiting Walnut Creek in September, expect excellent temperatures with highs of 29°C (84°F) and overnight lows of 13°C (55°F). Overall, the month follows a fairly predictable daily temperature pattern. With overnight lows of 13°C (55°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 Walnut Creek in September
Enjoy a sunny month with about 270 hours of sunshine, the clear skies make Walnut Creek even more beautiful.Our weather planner can help you find worldwide destinations with pleasant weather during this period. April, May, June, August, September and October typically offer the best weather for Walnut Creek.
Walnut Creek Temperature in September
Min Temperature
13°C (55°F)
Max Temperature
29°C (84°F)
Chance of Rain
3%
Precipitation
2.8 mm (0.1 in)
Rainy days
a single day
Humidity
73% *
Sunshine
270 hours *
Percentage Sunshine
73% *
* Data from: San Francisco, the United States of America (42 KM, 26 Miles).
Walnut Creek Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Walnut Creek - 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 Walnut Creek in September
Warm temperatures in September make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. With minimal rainfall expected, you can leave the rain gear at home. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.
What To Do in Walnut Creek in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming10/10 -
Cycling8/10 -
Walking8/10 -
Barbeque10/10 -
Camping10/10 -
Outdoor sports8/10
Walnut Creek 3-Day Forecast
More climate data for Walnut Creek
Temperature Rainfall Sunshine Humidity
See the full Walnut Creek 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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