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.
Monticello Weather in September
Monticello in September sees very high daytime temperatures of 31°C (88°F) and nighttime lows of 18°C (64°F). Rainfall is fairly high this month at around 83 mm (3.3 in), so pack a rain jacket to stay dry.
Rainfall in Monticello in September
Typically, you can expect about 8 days of rain this month, with 83 mm (3.3 in) on average. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.
Temperature in Monticello in September
Temperatures in Monticello in September top out at 31°C (88°F) and drop to 18°C (64°F) overnight. Mornings and evenings are often more comfortable than the peak afternoon hours. Nights cool down to 18°C (64°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.For Monticello itself, April, May and October generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Monticello Temperature in September
Min Temperature
18°C (64°F)
Max Temperature
31°C (88°F)
Chance of Rain
27%
Precipitation
83 mm (3.3 in)
Rainy days
8 days
Monticello Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Monticello - 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 Monticello in September
Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). High rain levels are expected, so pack waterproof gear and an umbrella or poncho.
What To Do in Monticello in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling7/10 -
Walking7/10 -
Camping8/10 -
Outdoor sports7/10
Monticello 3-Day Forecast
More climate data for Monticello
See the full Monticello 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.
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Need travel inspiration? Check out our bucket list articles and be inspired.
Yosemite National Park is definitely worth a visit
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