New Haven County (New Haven)
August
Weather in New Haven County, Connecticut for August 2025
Your guide to New Haven County weather in August - trends and predictions
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The forecast for the first days of August 2025 in New Haven County predicts temperatures to be around 26 °F, close to the historical average.
In general, the average temperature in New Haven County at the beginning of August is 24.7 °F. As the month progressed, temperatures tended to slightly increase, reaching an average of 24.9 °F by the end of August.
New Haven County 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 County Weather August
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Temperatures trend during August in New Haven County
See the weather trend as well as the moving average line
August weather in New Haven County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Aug. 1 |  Heavy rain | 18° /16° | 86.5 mm | 0.2 | |
| Aug. 2 |  Partly cloudy | 25° /15° | 0 mm | 2.3 | |
| Aug. 3 |  Sunny | 26° /16° | 0 mm | 0.2 | |
| Aug. 4 | Sunny | 27° /18° | 0 mm | 6 | |
| Aug. 5 | Sunny | 26° /18° | 0 mm | 6 | |
| Aug. 6 | Sunny | 26° /16° | 0 mm | 6 | |
| Aug. 7 | Partly cloudy | 25° /16° | 0 mm | 6 | |
| Aug. 8 |  Patchy rain possible | 28° /20° | 0.8 mm | 5 | |
| Aug. 9 | Patchy rain possible | 31° /22° | 2.4 mm | 6 | |
| Aug. 10 | Sunny | 27° /21° | 0 mm | 6 | |
| Aug. 11 | Sunny | 27° /19° | 0 mm | 6 | |
| Aug. 12 |  Moderate rain | 28° /21° | 6.4 mm | 5 | |
| Aug. 13 | Sunny | 26° /18° | 0 mm | 6 | |
| 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 County 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 County forecast closer to your planned date for the most up-to-date weather information.
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New Haven County in August - FAQ
What are the expected maximum and minimum temperatures in New Haven County 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 County during August?
Significant rainfall exceeding 182.1 mm is expected in New Haven County 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 County during August?
The average wind speed in New Haven County during August is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
August rainfall patterns in New Haven County
Explore the daily rainfall trends and prepare for New Haven Countys August weather 💧
UV exposure in New Haven County during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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