Long Island (NY)
August
Weather in Long Island, New York for August 2026
Your guide to Long Island weather in August - trends and predictions
In general, the average temperature in Long Island at the beginning of August is 27 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 25.1 °F by the end of August.
The climate of Long Island in August is notably wet, with an average of 13 rainy days, and a total of 196.7 mm of precipitation.
New! Chat with our AI weatherman - it’s amazing and free.
Temperatures
Rain 🌧️
More
18
Dry days
13
Rainy days
0
Snow days
25°/19°
Temperatures
18 km/h
Avg max wind
71 %
Avg humidity
Long Island Weather August
Move between months or click on a day
Temperatures trend during August in Long Island
See the weather trend as well as the moving average line
August weather in Long Island day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Aug. 1 |  Patchy rain possible | 25° /20° | 22.6 mm | 6 | |
| Aug. 2 |  Moderate rain at times | 28° /20° | 3 mm | 6 | |
| Aug. 3 | Patchy rain possible | 29° /20° | 2.4 mm | 7 | |
| Aug. 4 | Moderate or heavy rain shower | 29° /21° | 8.6 mm | 7 | |
| Aug. 5 |  Sunny | 30° /21° | 0 mm | 7 | |
| Aug. 6 | Moderate or heavy rain shower | 25° /20° | 28.1 mm | 6 | |
| Aug. 7 |  Overcast | 23° /18° | 8.2 mm | 5 | |
| Aug. 8 |  Heavy rain at times | 23° /18° | 2.2 mm | 6 | |
| Aug. 9 | Heavy rain at times | 27° /20° | 5.2 mm | 7 | |
| Aug. 10 | Overcast | 27° /19° | 9.4 mm | 6 | |
| Aug. 11 | Patchy rain possible | 28° /19° | 0.1 mm | 7 | |
| Aug. 12 | Patchy rain possible | 28° /19° | 0.6 mm | 6 | |
| Aug. 13 |  Partly cloudy | 25° /19° | 0 mm | 6 | |
| Aug. 14 | Patchy rain possible | 28° /21° | 0.1 mm | 6 | |
| Aug. 15 | Sunny | 29° /20° | 0 mm | 7 | |
| Aug. 16 | Patchy rain possible | 27° /20° | 0.2 mm | 6 | |
| Aug. 17 |  Cloudy | 28° /21° | 0.1 mm | 6 | |
| Aug. 18 | Moderate or heavy rain shower | 25° /19° | 12.1 mm | 6 | |
| Aug. 19 | Moderate or heavy rain shower | 25° /18° | 9 mm | 6 | |
| Aug. 20 | Patchy rain possible | 22° /16° | 0.7 mm | 5 | |
| Aug. 21 | Cloudy | 20° /15° | 5.3 mm | 5 | |
| Aug. 22 | Cloudy | 25° /15° | 0 mm | 6 | |
| Aug. 23 | Sunny | 27° /18° | 0 mm | 7 | |
| Aug. 24 | Sunny | 26° /19° | 0 mm | 7 | |
| Aug. 25 | Patchy rain possible | 26° /20° | 0.1 mm | 6 | |
| Aug. 26 | Moderate or heavy rain shower | 27° /19° | 5.4 mm | 7 | |
| Aug. 27 | Sunny | 25° /18° | 0 mm | 6 | |
| Aug. 28 | Overcast | 27° /19° | 0 mm | 6 | |
| Aug. 29 | Overcast | 24° /19° | 0.8 mm | 5 | |
| Aug. 30 | Overcast | 23° /16° | 2.6 mm | 6 | |
| Aug. 31 | Patchy rain possible | 24° /18° | 0.2 mm | 5 | |
| Next | |||||
Important Notice
Our weather forecast for Long Island 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 Long Island forecast closer to your planned date for the most up-to-date weather information.
Change Month
Long Island in August - FAQ
What are the expected maximum and minimum temperatures in Long Island during August?
During August, expect a variety of temperatures with highs around 25° and lows near 19°, suitable for diverse activities and preferences.
How much rainfall should be expected in Long Island during August?
Significant rainfall exceeding 196.7 mm is expected in Long Island during August, occurring over more than 13 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Long Island during August?
The average wind speed in Long Island during August is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
August rainfall patterns in Long Island
Explore the daily rainfall trends and prepare for Long Islands August weather 💧
UV exposure in Long Island during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
Quick links
More Long Island weather pages
You are here
Where is Long Island?Get accurate weather forecasts for Long Island, located at latitude 40.817 and longitude -73.066. Stay updated with localized weather information tailored for Long Island.
Found a mistake?
We appreciate your attention to details. Tell us here.