United StatesThe weather in August in Iselin
It's hot in August in Iselin with an average temperature of 30°C. Temperatures this month range from a low of 28°C to a high of 31°C. At night, you can expect temperatures between 19°C and 23°C.
Looking for sun? August isn’t a good month to be in Iselin. 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 August for Iselin, New Jersey. 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 37°C in 2022, Iselin reached the highest temperature in August over the past 10 years. The lowest daytime temperature in this month was 20°C in 2017. The extreme nighttime temperatures ranged from a lowest recorded value of 13°C to a highest value of 27°C.
Rainfall amount
In August, there is an average of 162 mm of precipitation, spread over 16 days. The wind speed is around 3 Bft, mostly coming from the Southwest.
Daily weather in August for Iselin
Click on any day in August to get detailed info about the usual weather on that day in Iselin. Check out the historical temperatures and precipitation over the past 10 years on this day.
August weather comparison
| Iselin | New York | |
|---|---|---|
| Average temperature | 30°C | 30°C |
| Max. temperature | 31°C | 31°C |
| Min. temperature | 19°C | -5°C |
| Total precipitation | 162 mm | 79 mm |
| Rainy days | 16 days | 13 days |
Start of August
The month of August starts in Iselin with hot temps, averaging around 31°C during the day and nights around 21°C.
Mid August
By mid-August, daytime temps stay steady at around 31°C, with nights around 22°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.
End of August
By the end of August, the average daytime temperature in Iselin is around 30°C, while nighttime temps are about 20°C. A shower might pop up, but overall, the weather will be dry and sunny.
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UV index
The UV index is a maximum of 9 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 Iselin for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in August in Iselin, New Jersey. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in August in Iselin
Temperature in August in Iselin over the years
Precipitation charts
These charts show the average amount of precipitation in August in Iselin, New Jersey. 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 August in Iselin
Total precipitation in August in Iselin over the years
Daily UV index in August in Iselin
This chart shows the average daily UV index in August in Iselin, 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 August in Iselin
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Average weather in Iselin by month
Click on a month below to see detailed weather info for Iselin. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.