United StatesAverage weather for Montauk in September
It's warm in September in Montauk with an average temperature of 24°C. Temperatures this month range from a low of 20°C to a high of 28°C. At night, you can expect temperatures between 14°C and 21°C.
Start of September
The month of September starts in Montauk with warm temps, averaging around 26°C during the day and nights around 20°C. You can expect regular precipitation, but there will also be some sunny days in the early part of the month.
With the temperature difference between day and night, it’s smart to wear layers.
Mid September
By mid-September, daytime temps drop to around 24°C, with nights around 19°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of September
By the end of September, the average daytime temperature in Montauk is around 22°C, while nighttime temps are about 17°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.
Water temperature
The water temperature at Montauk is 21°C this month. Pleasant for a swim.
In September, there is an average of 171 mm of precipitation, spread over 7 days. The wind speed is around 3 Bft, mostly coming from the Southeast.
Montauk in September |
New York | ||
|---|---|---|---|
 Average temperature |
24°C | 27°C | |
 Max. temperature |
28°C | 31°C | |
| Min. temperature |
20°C | -5°C | |
 Total precipitation |
171 mm | 57 mm | |
| Rainy days |
7 days | 9 days | |
August
UV index
The UV index is a maximum of 6 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Is September a good time to visit Montauk?
Looking for sun? September isn’t a good month to be in Montauk. The temperature is nice, but there’s too much chance of rain.
Temperature records
With 33°C in 2023, Montauk reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 16°C in 2018. The extreme nighttime temperatures ranged from a lowest recorded value of 6°C to a highest value of 24°C.
Check out the climate of Montauk for all months and discover the best travel time
Daily Temperature in September in Montauk
This chart shows the average daily high and low temperatures in September for Montauk, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in September in Montauk
The chart below shows the average daily precipitation in September for Montauk, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for September, you can expect about 7 days of precipitation in Montauk.
Daily UV index in September in Montauk
This chart shows the average daily UV index in September in Montauk, 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.
Temperature in September in Montauk over the years
This chart shows the average temperature in September in Montauk, measured in degrees Celsius, over the past few years.
Total precipitation in September in Montauk over the years
This chart shows the average precipitation in September in Montauk, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in September for Montauk
Click on any day in September to get detailed info about the usual weather on that day in Montauk. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Montauk
Have you been to Montauk in September?
Share your weather experience in September in Montauk.
Average weather in Montauk by month
Click on a month below to see detailed weather info for Montauk. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
