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 comes with a mild decrease in the average high-temperature, moving subtly from a warm 81.7°F (27.6°C) in August to a still moderately hot 74.3°F (23.5°C). Throughout the month of September, the nighttime temperature in Bayonne dips to an average of 62.4°F (16.9°C).Humidity
In September, the average relative humidity is 74%.Rainfall
September is the month with the least rainfall in Bayonne. Rain falls for 12.9 days and accumulates 1.85" (47mm) of precipitation.Snowfall
In Bayonne, snow does not fall in May through October.Ocean temperature
In Bayonne, in September, the average water temperature is 70.2°F (21.2°C).Note: Most people do not find pleasure in swimming when the water temperature is 70.2°F (21.2°C). Breathing becomes increasingly difficult to manage as the water temperature drops from 69.8°F (21°C) to 59°F (15°C).
Daylight
In September, the average length of the day is 12h and 27min.On the first day of the month, sunrise is at 6:24 am and sunset at 7:28 pm. On the last day of September, sunrise is at 6:52 am and sunset at 6:39 pm EDT.
Sunshine
In Bayonne, the average sunshine in September is 8.9h.UV index
In Bayonne, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.Note: The daily high UV index of 5 during September translates into the following recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Caution! Sand and water reflections can notably increase the UV radiation intensity.
Frequently asked questions
What is the average September temperature in Bayonne?
What is the average humidity in September in Bayonne?
What is the driest month in Bayonne?
How many days does it rain in September in Bayonne?
When it does not snow in Bayonne?
What is the ocean temperature in September in Bayonne?
What is the average length of the day in September in Bayonne?
When are sunrise and sunset in September in Bayonne?
How long on average sun shines in September in Bayonne?
What is the UV index intensity in September in Bayonne?
Average temperature in September
Bayonne, NJ
- Average high temperature in September: 74.3°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (36.5°F).
- Average low temperature in September: 62.4°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in September
Bayonne, 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
Bayonne, NJ
- Average wind speed in September: 7.4mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in September
Bayonne, NJ
- Average humidity in September: 74%
The months with the highest relative humidity are February, May and December (76%).
The month with the lowest relative humidity is August (72%).
Average rainfall in September
Bayonne, NJ
- Average rainfall in September: 1.85"
The wettest months (with the highest rainfall) are July and December (3.35").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in September
Bayonne, NJ
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is November (9.5 days).
Average snowfall in September
Bayonne, NJ
- Average snowfall in September: 0"
The month with the highest snowfall is March (2.6").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Bayonne, NJ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in September
Bayonne, NJ
- Average sea temperature in September: 70.1°F
The best month for swimming (with the highest average sea temperature) is August (74.1°F).
The coldest month (with the lowest average sea temperature) is February (39.7°F).
Average daylight in September /
Average sunshine in September
Bayonne, NJ
- Average daylight in September: 12h and 3min
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 18min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in September
Bayonne, NJ
- Average sunshine days in September: 14.9 days
The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is June (11.8 days).
Average UV index in September
Bayonne, 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, November and December (UV index 2).
Average cloud cover in September
Bayonne, NJ
- Average cloud cover in September: 34
The months with the most cloud cover are February, March and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Bayonne, 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).
Bayonne, New Jersey, USA
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