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 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
A minor decrease in the average high-temperature is observed during September, shifting from 80.1°F (26.7°C) in August to a still moderately hot 73.9°F (23.3°C). Port Monmouth's nights in September cool down to an average low-temperature of 63.7°F (17.6°C).Humidity
In Port Monmouth, New Jersey, the average relative humidity in September is 76%.Rainfall
In September, in Port Monmouth, the rain falls for 12.1 days. Throughout September, 0.94" (24mm) of precipitation is accumulated. Throughout the year, there are 127 rainfall days, and 12.99" (330mm) of precipitation is accumulated.Snowfall
April through September are months without snowfall in Port Monmouth, New Jersey.Daylight
In September, the average length of the day in Port Monmouth, New Jersey, is 12h and 27min.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
The average sunshine in September in Port Monmouth, New Jersey, is 9h.UV index
In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A typical high UV index of 5 in September suggests the following recommendations:
Take necessary precautions - Protection from skin and eye injury is mandatory. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Enhance your sun protection with tightly woven, yet airy clothing.
Frequently asked questions
What are the temperatures in Port Monmouth in September?
What is the average humidity in September in Port Monmouth?
How much does it rain in Port Monmouth in September?
When it does not snow in Port Monmouth?
Does it snow in Port Monmouth in September?
What is the average length of the day in September in Port Monmouth?
When is the sunrise / sunset in September in Port Monmouth?
How many hours of sunshine does Port Monmouth have in September?
What is the UV index reading in September in Port Monmouth?
Average temperature in September
Port Monmouth, NJ
- Average high temperature in September: 73.9°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in September: 63.7°F
The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (27.9°F).
Average pressure in September
Port Monmouth, 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
Port Monmouth, NJ
- Average wind speed in September: 8.5mph
The windiest month (with the highest average wind speed) is January (11.7mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).
Average humidity in September
Port Monmouth, NJ
- Average humidity in September: 76%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is November (73%).
Average rainfall in September
Port Monmouth, NJ
- Average rainfall in September: 0.94"
The wettest month (with the highest rainfall) is July (1.69").
The driest month (with the least rainfall) is January (0.63").
Average rainfall days in September
Port Monmouth, NJ
- Average rainfall days in September: 12.1 days
The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is January (6.6 days).
Average snowfall in September
Port Monmouth, NJ
- Average snowfall in September: 0"
The months with the highest snowfall are January and December (0.47").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in September
Port Monmouth, NJ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Port Monmouth, 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 18min).
- 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 48min).
Average sunshine days in September
Port Monmouth, NJ
- Average sunshine days in September: 15.9 days
The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is July (13.2 days).
Average UV index in September
Port Monmouth, 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
Port Monmouth, 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 28).
Average visibility in September
Port Monmouth, 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).
Port Monmouth, New Jersey, USA
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