September weather forecast and climate
Long Branch, NJ

The first month of the autumn, September, is still a pleasant month in Long Branch, New Jersey, with average temperature varying between 65.1°F (18.4°C) and 73.2°F (22.9°C).

Temperature

In September, the average high-temperature marginally drops, from a warm 79.3°F (26.3°C) in August, to a pleasant 73.2°F (22.9°C). In September, the average low-temperature is 65.1°F (18.4°C).

Humidity

In Long Branch, the average relative humidity is 76%.

Rainfall

In Long Branch, it is raining for 11 days, with typically 0.75" (19mm) of accumulated precipitation. In Long Branch, during the entire year, the rain falls for 122.1 days and collects up to 11.14" (283mm) of precipitation.

Snowfall

April through September and November are months without snowfall.

Ocean temperature

In September, the average ocean temperature is 70.3°F (21.3°C).
Note: Swimming in 70.3°F (21.3°C) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 69.8°F (21°C).

Daylight

In September, the average length of the day is 12.4h.

Sunshine

The average sunshine in September is 9.1h.

UV index

In Long Branch, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to the UV radiation for ordinary individuals.
Note: The average daily UV index of 5 transform into the following instructions:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.

What is the temperature in September in Long Branch?

In Long Branch, in September, the average high-temperature is 73.2°F (22.9°C), and the average low-temperature is 65.1°F (18.4°C).

What is the average humidity in September in Long Branch?

In Long Branch, New Jersey, the average relative humidity in September is 76%.

How many days does it rain in September in Long Branch?

In Long Branch, during September, the rain falls for 11 days and regularly aggregates up to 0.75" (19mm) of precipitation.

Does it snow in Long Branch in September?

In Long Branch, in September, it doesn't snow. In October, it regularly snows.

When it does not snow in Long Branch?

April through September and November are months without snowfall in Long Branch, New Jersey.

What is the ocean temperature in September in Long Branch?

In September, the average ocean temperature in Long Branch, New Jersey, is 70.3°F (21.3°C). For swimming, a surface water temperature of 70.3°F (21.3°C) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 69.8°F (21°C).

What is the average length of the day in September in Long Branch?

In Long Branch, the average length of the day in September is 12.4h.

How long on average sun shines in September in Long Branch?

In Long Branch, New Jersey, the average sunshine in September is 9.1h.

How high is the UV index in September in Long Branch?

In Long Branch, New Jersey, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health threat from the exposure to the Sun's UV radiation.
Average temperature in September - Long Branch, NJ
  • Average high temperature in September: 22.9°C

The warmest month (with the highest average high temperature) is July (26.8°C).
The month with the lowest average high temperature is January (3.5°C).

  • Average low temperature in September: 18.4°C

The month with the highest average low temperature is July (21.8°C).
The coldest month (with the lowest average low temperature) is January (-1.7°C).

Average pressure in September - Long Branch, NJ
  • Average pressure in September: 1017.6mbar

The month with the highest atmospheric pressure is November (1019.5mbar).
The month with the lowest atmospheric pressure is June (1013.7mbar).

Average wind speed in September - Long Branch, NJ
  • Average wind speed in September: 14.9km/h

The windiest month (with the highest average wind speed) is January (20.2km/h).
The calmest month (with the lowest average wind speed) is July (12.9km/h).

Average humidity in September - Long Branch, NJ
  • Average humidity in September: 76%

Months with the highest relative humidity are May and June (79%).
The month with the lowest relative humidity is November (73%).

Average rainfall in September - Long Branch, NJ
  • Average rainfall in September: 19mm

The wettest month (with the highest rainfall) is July (35mm).
The driest month (with the least rainfall) is January (14mm).

Average rainfall days in September - Long Branch, NJ
  • Average rainfall days in September: 11 days

The month with the highest number of rainy days is July (14.6 days).
The month with the least rainy days is November (6.8 days).

Average snowfall in September - Long Branch, NJ
  • Average snowfall in September: 0mm

The month with the highest snowfall is December (12mm).
Months with the least snowfall are April, May, June, July, August, September and November (0mm).

Average snowfall days in September - Long Branch, NJ
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (4.2 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

Average sea temperature in September - Long Branch, NJ
  • Average sea temperature in September: 21.3°C

The best month for swimming (with the highest average sea temperature) is August (23.7°C).
The coldest month (with the lowest average sea temperature) is February (4.5°C).

Average daylight in September / Average sunshine in September - Long Branch, NJ
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in September: 9.1h

The month with the most sunshine is July (Average sunshine: 10.8h).
The month with the least sunshine is February (Average sunshine: 4.8h).

Average sunshine days in September - Long Branch, NJ
  • Average sunshine days in September: 16.5 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is July (14.3 days).

Average UV index in September - Long Branch, NJ
  • Average UV index in September: 5

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in September - Long Branch, NJ
  • Average cloud cover in September: 33

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in September - Long Branch, NJ
  • Average visibility in September: 10km

Months with the highest visibility are February, March, April, June, July, August, September, October and November (10km).
Months with the lowest visibility are January, May and December (9km).