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.
Princeton Weather in September
With daytime temperatures of 25°C (77°F) and nighttime lows of 12°C (54°F), September in Princeton brings high temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 90 mm (3.5 in) falls on average.
Rainfall in Princeton in September
You can expect rain on roughly 8 days based on historical data, averaging 90 mm (3.5 in) for the month. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.
Temperature in Princeton in September
If you're visiting Princeton in September, expect excellent temperatures with highs of 25°C (77°F) and overnight lows of 12°C (54°F). Overall, the month follows a fairly predictable daily temperature pattern. With lows of 12°C (54°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit.
Princeton Temperature in September
Min Temperature
12°C (54°F)
Max Temperature
25°C (77°F)
Chance of Rain
28%
Precipitation
90 mm (3.5 in)
Rainy days
8 days
Princeton Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Princeton - 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 Princeton in September
For Princeton in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho.
What To Do in Princeton in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling9/10 -
Walking9/10 -
Camping8/10 -
Outdoor sports9/10
Princeton 3-Day Forecast
More climate data for Princeton
See the full Princeton 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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