United StatesThe weather in July in Long Island
It's warm in July in Long Island with an average temperature of 26°C. Temperatures this month range from a low of 24°C to a high of 29°C. At night, you can expect temperatures between 15°C and 19°C.
Looking for sun? July isn’t a good month to be in Long Island. The temperature is nice, but there’s too much chance of rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in July for Long Island, Maine. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 35°C in 2020, Long Island reached the highest temperature in July over the past 10 years. The lowest daytime temperature in this month was 14°C in 2021. The extreme nighttime temperatures ranged from a lowest recorded value of 9°C to a highest value of 26°C.
Water temperature
The water temperature at Long Island is 18°C this month. You can swim, but it's a bit chilly.
Rainfall amount
In July, there is an average of 145 mm of precipitation, spread over 15 days. The wind speed is around 4 Bft, mostly coming from the South.
Daily weather in July for Long Island
Click on any day in July to get detailed info about the usual weather on that day in Long Island. Check out the historical temperatures and precipitation over the past 10 years on this day.
July weather comparison
| Long Island | New York | |
|---|---|---|
| Average temperature | 26°C | 31°C |
| Max. temperature | 29°C | 33°C |
| Min. temperature | 15°C | -5°C |
| Total precipitation | 145 mm | 160 mm |
| Rainy days | 15 days | 18 days |
Start of July
The month of July starts in Long Island with warm temps, averaging around 26°C during the day and nights around 17°C.
Mid July
By mid-July, daytime temps rise to around 27°C, with nights around 19°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.
End of July
By the end of July, the average daytime temperature in Long Island is around 28°C, while nighttime temps are about 18°C. A shower might pop up, but overall, the weather will be dry and sunny.
Find affordable trips to Long Island
UV index
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Check out the climate of Long Island for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in July in Long Island, Maine. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in July in Long Island
Temperature in July in Long Island over the years
Precipitation charts
These charts show the average amount of precipitation in July in Long Island, Maine. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in July in Long Island
Total precipitation in July in Long Island over the years
Daily UV index in July in Long Island
This chart shows the average daily UV index in July in Long Island, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in July in Long Island
Have you been to Long Island in July?
Share your weather experience in July in Long Island.
Average weather in Long Island by month
Click on a month below to see detailed weather info for Long Island. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.