Princeton (NJ)
August
Weather in Princeton, New Jersey for August 2026
Your guide to Princeton weather in August - trends and predictions
So far, August 2026 in Princeton is slightly warmer than the historical average by 1.7 °F.
The forecast for the upcoming days in Princeton predicts a temperature of 30.6 °F, which is slightly above the historical average.
In general, the average temperature in Princeton at the beginning of August is 29.4 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 26.3 °F by the end of August.
The climate of Princeton in August is notably wet, with an average of 13 rainy days, and a total of 110.9 mm of precipitation.
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Temperatures
Rain 🌧️
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18
Dry days
13
Rainy days
0
Snow days
27°/17°
Temperatures
16 km/h
Avg max wind
70 %
Avg humidity
Princeton Weather August
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Temperatures trend during August in Princeton
See the weather trend as well as the moving average line
August weather in Princeton day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Aug. 1 |  Patchy light drizzle | 28° /19° | 25.1 mm | 8 | |
| Aug. 2 | Patchy light rain | 30° /21° | 3.6 mm | 8 | |
| Aug. 3 | Light drizzle | 31° /19° | 24.4 mm | 7 | |
| Aug. 4 |  Sunny | 31° /18° | 6.3 mm | 8 | |
| Aug. 5 |  Partly cloudy | 30° /19° | 4.6 mm | 8 | |
| Aug. 6 |  Light rain shower | 29° /20° | 5.8 mm | 7 | |
| Aug. 7 | Light rain shower | 27° /19° | 14.8 mm | 7 | |
| Aug. 8 | Light rain shower | 27° /18° | 3 mm | 7 | |
| Aug. 9 | Sunny | 35° /22° | 0 mm | 8.2 | |
| Aug. 10 | Sunny | 34° /21° | 0.5 mm | 7.4 | |
| Aug. 11 | Sunny | 32° /23° | 0 mm | 7.3 | |
| Aug. 12 | Sunny | 30° /22° | 1.3 mm | 7.6 | |
| Aug. 13 | Sunny | 29° /19° | 0 mm | 5.4 | |
| Aug. 14 | Sunny | 27° /18° | 0 mm | 7 | |
| Aug. 15 | Partly cloudy | 29° /19° | 0 mm | 7 | |
| Aug. 16 | Patchy rain possible | 33° /21° | 0.5 mm | 8 | |
| Aug. 17 | Sunny | 28° /18° | 0 mm | 7 | |
| Aug. 18 | Sunny | 31° /18° | 0.5 mm | 8 | |
| Aug. 19 | Sunny | 33° /20° | 4.8 mm | 8 | |
| Aug. 20 | Sunny | 31° /18° | 0 mm | 8 | |
| Aug. 21 | Partly cloudy | 32° /22° | 2.4 mm | 8 | |
| Aug. 22 | Partly cloudy | 25° /20° | 6.6 mm | 6 | |
| Aug. 23 | Partly cloudy | 28° /14° | 0 mm | 7 | |
| Aug. 24 | Partly cloudy | 27° /16° | 0 mm | 7 | |
| Aug. 25 | Sunny | 28° /18° | 3.5 mm | 7 | |
| Aug. 26 | Partly cloudy | 28° /16° | 0 mm | 8 | |
| Aug. 27 | Sunny | 28° /16° | 0 mm | 7 | |
| Aug. 28 | Sunny | 29° /16° | 0.6 mm | 7 | |
| Aug. 29 | Light drizzle | 23° /16° | 4.6 mm | 5 | |
| Aug. 30 | Light rain shower | 22° /14° | 0.5 mm | 6 | |
| Aug. 31 | Patchy rain possible | 26° /15° | 0.2 mm | 6 | |
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Important Notice
Our weather forecast for Princeton in August is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Princeton forecast closer to your planned date for the most up-to-date weather information.
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Princeton in August - FAQ
What are the expected maximum and minimum temperatures in Princeton during August?
During August, expect a variety of temperatures with highs around 27° and lows near 17°, suitable for diverse activities and preferences.
How much rainfall should be expected in Princeton during August?
Significant rainfall exceeding 110.9 mm is expected in Princeton during August, occurring over more than 13 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Princeton during August?
The average wind speed in Princeton during August is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
August rainfall patterns in Princeton
Explore the daily rainfall trends and prepare for Princetons August weather 💧
Typically, Princeton has 13 rainy days in August with a total of 110.9 mm of rainfall.
UV exposure in Princeton during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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