New Haven (CT)
August
Weather in New Haven, Connecticut for August 2025
Your guide to New Haven weather in August - trends and predictions
In general, the average temperature in New Haven at the beginning of August is 26.9 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 24.9 °F by the end of August.
New Haven in August brings notable rainfall, with an average of 19 rainy days and a total precipitation of 182.1 mm.
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Temperatures
Rain 🌧️
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12
Dry days
19
Rainy days
0
Snow days
25°/18°
Temperatures
17 km/h
Avg max wind
74 %
Avg humidity
New Haven Weather August
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Temperatures trend during August in New Haven
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August weather in New Haven day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Aug. 1 |  Cloudy | 30° /21° | 0 mm | 7 | |
| Aug. 2 |  Overcast | 28° /22° | 12 mm | 6 | |
| Aug. 3 |  Patchy rain possible | 29° /21° | 6.9 mm | 6 | |
| Aug. 4 |  Moderate or heavy rain shower | 26° /21° | 30.2 mm | 6 | |
| Aug. 5 | Overcast | 29° /20° | 0 mm | 6 | |
| Aug. 6 | Moderate or heavy rain shower | 27° /19° | 16.8 mm | 6 | |
| Aug. 7 | Moderate or heavy rain shower | 19° /16° | 12.6 mm | 4 | |
| Aug. 8 | Moderate rain at times | 21° /17° | 3.4 mm | 5 | |
| Aug. 9 | Moderate or heavy rain shower | 26° /20° | 18.3 mm | 6 | |
| Aug. 10 | Moderate rain at times | 28° /21° | 4.9 mm | 6 | |
| Aug. 11 |  Sunny | 26° /17° | 0 mm | 7 | |
| Aug. 12 | Patchy rain possible | 24° /17° | 0.6 mm | 5 | |
| Aug. 13 |  Partly cloudy | 25° /16° | 0 mm | 7 | |
| Aug. 14 | Patchy rain possible | 27° /18° | 0.7 mm | 6 | |
| Aug. 15 | Overcast | 27° /17° | 0.4 mm | 6 | |
| Aug. 16 | Patchy rain possible | 26° /19° | 0.3 mm | 6 | |
| Aug. 17 | Cloudy | 25° /20° | 0.5 mm | 6 | |
| Aug. 18 | Moderate or heavy rain shower | 25° /20° | 23.3 mm | 6 | |
| Aug. 19 | Moderate or heavy rain shower | 26° /20° | 43.7 mm | 6 | |
| Aug. 20 | Patchy rain possible | 22° /15° | 0.2 mm | 5 | |
| Aug. 21 | Patchy rain possible | 20° /13° | 0.2 mm | 5 | |
| Aug. 22 | Overcast | 22° /12° | 0 mm | 5 | |
| Aug. 23 | Partly cloudy | 24° /15° | 0 mm | 6 | |
| Aug. 24 | Partly cloudy | 25° /16° | 0 mm | 7 | |
| Aug. 25 | Patchy rain possible | 26° /17° | 0.4 mm | 6 | |
| Aug. 26 | Moderate or heavy rain shower | 25° /17° | 5.4 mm | 6 | |
| Aug. 27 | Partly cloudy | 25° /16° | 0 mm | 7 | |
| Aug. 28 | Overcast | 31° /20° | 0 mm | 7 | |
| Aug. 29 | Cloudy | 22° /17° | 0 mm | 5 | |
| Aug. 30 | Partly cloudy | 21° /14° | 0.5 mm | 6 | |
| Aug. 31 | Patchy rain possible | 24° /17° | 0.8 mm | 5 | |
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Important Notice
Our weather forecast for New Haven 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 New Haven forecast closer to your planned date for the most up-to-date weather information.
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New Haven in August - FAQ
What are the expected maximum and minimum temperatures in New Haven during August?
During August, expect a variety of temperatures with highs around 25° and lows near 18°, suitable for diverse activities and preferences.
How much rainfall should be expected in New Haven during August?
Significant rainfall exceeding 182.1 mm is expected in New Haven during August, occurring over more than 19 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in New Haven during August?
The average wind speed in New Haven during August is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
August rainfall patterns in New Haven
Explore the daily rainfall trends and prepare for New Havens August weather 💧
UV exposure in New Haven during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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