September weather forecastStone Harbor, NJ
September
Weather in September
The first month of the autumn, September, is still a warm month in Stone Harbor, New Jersey, with an average temperature varying between 67.5°F (19.7°C) and 73.8°F (23.2°C).Temperature
The onset of September entails a subtle temperature shift, as the average high-temperature eases from 79.2°F (26.2°C) in August to a still warm 73.8°F (23.2°C). Stone Harbor notes an average temperature descent to an enjoyable 67.5°F (19.7°C) in September, a small shift from its daytime peak.Humidity
The average relative humidity in September is 77%.Rainfall
In Stone Harbor, in September, during 9.1 rainfall days, 0.55" (14mm) of precipitation is typically accumulated. Throughout the year, in Stone Harbor, there are 112.7 rainfall days, and 8.94" (227mm) of precipitation is accumulated.Snowfall
April through November are months without snowfall in Stone Harbor, New Jersey.Ocean temperature
In Stone Harbor, the average seawater temperature in September is 72.1°F (22.3°C).Note: The allure of a swim in 72.1°F (22.3°C) waters can be influenced by your feelings towards the cold, today's sunshine, the wind's touch, and the ambient warmth. To put it in perspective, Olympic standards demand water temperatures of 77°F (25°C) to 82.4°F (28°C).
Daylight
In Stone Harbor, the average length of the day in September is 12h and 26min.On the first day of September, sunrise is at 6:28 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:42 pm EDT.
Sunshine
In Stone Harbor, the average sunshine in September is 9.5h.UV index
The average daily maximum UV index in September in Stone Harbor is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: A daily high UV index of 5 in September leads to these guidelines:
Ensure safety - Recommendations to avert sunburn are presented. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Beware! Reflecting off water and sand, UV rays are much stronger.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Stone Harbor, NJ
- Average high temperature in September: 73.8°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (40.6°F).
- Average low temperature in September: 67.5°F
The month with the highest average low temperature is July (73.4°F).
The coldest month (with the lowest average low temperature) is January (32.7°F).
Average pressure in September
Stone Harbor, NJ
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Stone Harbor, NJ
- Average wind speed in September: 10.8mph
The windiest month (with the highest average wind speed) is January (13.5mph).
The calmest months (with the lowest average wind speed) are July and August (9.1mph).
Average humidity in September
Stone Harbor, NJ
- Average humidity in September: 77%
The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is November (73%).
Average rainfall in September
Stone Harbor, NJ
- Average rainfall in September: 0.55"
The wettest months (with the highest rainfall) are May and June (0.98").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in September
Stone Harbor, NJ
- Average rainfall days in September: 9.1 days
The month with the highest number of rainy days is July (12.7 days).
The month with the least rainy days is November (5.9 days).
Average snowfall in September
Stone Harbor, NJ
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.24").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Stone Harbor, NJ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (2.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average sea temperature in September
Stone Harbor, NJ
- Average sea temperature in September: 72.1°F
The best month for swimming (with the highest average sea temperature) is August (76.5°F).
The coldest month (with the lowest average sea temperature) is February (40.3°F).
Average daylight in September /
Average sunshine in September
Stone Harbor, NJ
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 9h and 30min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in September
Stone Harbor, NJ
- Average sunshine days in September: 18.8 days
The months with the most sunshine days are January and November (22.3 days).
The month with the least sunshine days is July (15.6 days).
Average UV index in September
Stone Harbor, NJ
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in September
Stone Harbor, NJ
- Average cloud cover in September: 29
The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 24).
Average visibility in September
Stone Harbor, NJ
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
