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.
Fairfax Weather in September
September in Fairfax brings high temperatures, with daytime highs of 27°C (81°F) and nights around 12°C (54°F). Only 4.3 mm (0.2 in) of rainfall is typical, making it a largely dry month.
Rainfall in Fairfax in September
The climate data from previous years indicates about a single day of rain, averaging 4.3 mm (0.2 in) for the month. If rain does fall, it tends to be a moderate shower rather than anything heavy.
Temperature in Fairfax in September
Fairfax has excellent weather in September, with days reaching 27°C (81°F) and nights cooling to 12°C (54°F). September is in the summer season. This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. At 12°C (54°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.
Sunshine in Fairfax in September
The days are predominantly sunny, with an estimated total of around 270 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit.
Fairfax Temperature in September
Min Temperature
12°C (54°F)
Max Temperature
27°C (81°F)
Chance of Rain
3%
Precipitation
4.3 mm (0.2 in)
Rainy days
a single day
Humidity
73% *
Sunshine
270 hours *
Percentage Sunshine
73% *
* Data from: San Francisco, the United States of America (44 KM, 27 Miles).
Fairfax Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Fairfax - 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 Fairfax in September
Warm but pleasant conditions in Fairfax 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. Dry conditions mean you won't need to worry about rain protection. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.
What To Do in Fairfax in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
-
Swimming10/10 -
Cycling8/10 -
Walking8/10 -
Barbeque10/10 -
Camping10/10 -
Outdoor sports8/10
Fairfax 3-Day Forecast
More climate data for Fairfax
Temperature Rainfall Sunshine Humidity
See the full Fairfax 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
The 10 most alternative cities in the United States
Discover the top 10 fun and alternative U.S. cities rich in art, culture, and adventure. From Portland's hippy charm to Sedona's stunning landscapes.
Sedona: Explore Majestic Red Rock Landscapes
A picturesque artists' town surrounded by red rocks and known for its spirituality, vortex energy, and stunning hikes like Cathedral Rock.
10 most idyllic villages to visit in the United States
Discover 10 idyllic villages in the USA, from California to Vermont. Explore their unique charm, rich history, stunning nature, and vibrant arts scenes.