Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average sea temperature in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September's arrival aligns with a minor decrease in average high-temperatures, from August's warm 78.4°F (25.8°C) to a pleasant 72.5°F (22.5°C). In Lavallette, the nighttime temperature in September descends gently to an average of 66°F (18.9°C).Humidity
In Lavallette, the average relative humidity in September is 77%.Rainfall
In Lavallette, New Jersey, in September, during 12.5 rainfall days, 2.09" (53mm) of precipitation is typically accumulated. In Lavallette, during the entire year, the rain falls for 155 days and collects up to 33.23" (844mm) of precipitation.Snowfall
In Lavallette, snow does not fall in May through October.Ocean temperature
In Lavallette, in September, the average water temperature is 71.2°F (21.8°C).Note: Most people do not enjoy swimming in water that is 71.2°F (21.8°C). Breathing becomes increasingly challenging as the water temperature dips under 69.8°F (21°C).
Daylight
The average length of the day in September is 12h and 26min.On the first day of September, sunrise is at 6:24 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 6:39 pm EDT.
Sunshine
In September, the average sunshine in Lavallette is 9h.UV index
The average daily maximum UV index in September in Lavallette is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 5 during September translates into these guidelines:
Guard yourself - Avoiding sunburn is suggested. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Be on guard! The reflective nature of sand and water boosts UV exposure.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Lavallette in September?
What is the average humidity in September in Lavallette?
How many days does it rain in September in Lavallette?
When it does not snow in Lavallette?
How cold is the water in September in Lavallette?
How many hours of daylight does Lavallette have in September?
What time are sunrise and sunset in September in Lavallette?
How long on average sun shines in September in Lavallette?
How high is the UV index in September in Lavallette?
Average temperature in September
Lavallette, NJ
- Average high temperature in September: 72.5°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (39°F).
- Average low temperature in September: 66°F
The month with the highest average low temperature is August (71.6°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).
Average pressure in September
Lavallette, NJ
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Lavallette, NJ
- Average wind speed in September: 10.3mph
The windiest month (with the highest average wind speed) is January (13.5mph).
The calmest month (with the lowest average wind speed) is July (8.8mph).
Average humidity in September
Lavallette, NJ
- Average humidity in September: 77%
The months with the highest relative humidity are May and June (81%).
The months with the lowest relative humidity are January and November (74%).
Average rainfall in September
Lavallette, NJ
- Average rainfall in September: 2.09"
The wettest month (with the highest rainfall) is December (3.7").
The driest month (with the least rainfall) is January (2.01").
Average rainfall days in September
Lavallette, NJ
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is January (9 days).
Average snowfall in September
Lavallette, NJ
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.34").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Lavallette, NJ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in September
Lavallette, NJ
- Average sea temperature in September: 71.2°F
The best month for swimming (with the highest average sea temperature) is August (75.8°F).
The coldest month (with the lowest average sea temperature) is February (40.8°F).
Average daylight in September /
Average sunshine in September
Lavallette, NJ
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in September
Lavallette, NJ
- Average sunshine days in September: 15.7 days
The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is July (13.1 days).
Average UV index in September
Lavallette, 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, March and December (UV index 2).
Average cloud cover in September
Lavallette, NJ
- Average cloud cover in September: 33
The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in September
Lavallette, 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).
Lavallette, New Jersey, USA
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