September weather forecast and climate
Rio Grande, NJ

Weather in September

September, the first month of the autumn, in Rio Grande, is also a moderately hot month, with average temperature varying between 73.4°F (23°C) and 67.8°F (19.9°C).

Temperature

In Rio Grande, the average high-temperature in September is relatively the same as in August - a still moderately hot 73.4°F (23°C). In September, the average low-temperature is 67.8°F (19.9°C).

Humidity

The average relative humidity is 77%.

Rainfall

In September, in Rio Grande, the rain falls for 12.7 days. Throughout September, 2.6" (66mm) of precipitation is accumulated. Throughout the year, in Rio Grande, there are 158 rainfall days, and 35.47" (901mm) of precipitation is accumulated.

Snowfall

In Rio Grande snow does not fall in April through November.

Daylight

The average length of the day in September is 12.4h.

Sunshine

In September, the average sunshine in Rio Grande is 9.4h.

UV index

The average daily maximum UV index in Rio Grande is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 5 interpret into the following advice:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in September in Rio Grande?

The average high-temperature, in September, in Rio Grande, is 73.4°F (23°C), while the average low-temperature is 67.8°F (19.9°C).

What is the average humidity in September in Rio Grande?

In September, the average relative humidity in Rio Grande, New Jersey, is 77%.

How many days does it rain in September in Rio Grande?

In Rio Grande, in September, during 12.7 rainfall days, 2.6" (66mm) of precipitation is typically accumulated.

When it does not snow in Rio Grande?

In Rio Grande snow does not fall in April through November.

How many hours of daylight does Rio Grande have in September?

In September, the average length of the day in Rio Grande, New Jersey, is 12.4h.

How many hours of sunshine does Rio Grande have in September?

In Rio Grande, New Jersey, the average sunshine in September is 9.4h.

What is the UV index reading in September in Rio Grande?

In Rio Grande, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from unsafe exposure to the Sun's UV rays.

Average temperature in September
Rio Grande, NJ

Average temperature in September - Rio Grande, NJ
  • Average high temperature in September: 73.4°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (40.5°F).

  • Average low temperature in September: 67.8°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 (32.2°F).

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Average pressure in September
Rio Grande, NJ

Average pressure in September - Rio Grande, NJ
  • Average pressure in September: 30.04"

The month with the highest atmospheric pressure is November (30.12").
The month with the lowest atmospheric pressure is June (29.94").

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Average wind speed in September
Rio Grande, NJ

Average wind speed in September - Rio Grande, NJ
  • Average wind speed in September: 10.9mph

The windiest month (with the highest average wind speed) is January (13.5mph).
The calmest month (with the lowest average wind speed) is July (9.2mph).

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Average humidity in September
Rio Grande, NJ

Average humidity in September - Rio Grande, NJ
  • Average humidity in September: 77%

The month with the highest relative humidity is May (82%).
The month with the lowest relative humidity is November (73%).

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Average rainfall in September
Rio Grande, NJ

Average rainfall in September - Rio Grande, NJ
  • Average rainfall in September: 2.6"

The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is January (2.13").

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Average rainfall days in September
Rio Grande, NJ

Average rainfall days in September - Rio Grande, NJ
  • Average rainfall days in September: 12.7 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (8.7 days).

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Average snowfall in September
Rio Grande, NJ

Average snowfall in September - Rio Grande, NJ
  • Average snowfall in September: 0"

The month with the highest snowfall is December (1.06").
Months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Rio Grande, NJ

Average snowfall days in September - Rio Grande, NJ
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (2.5 days).
Months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Rio Grande, NJ

Average daylight in September / Average sunshine in September - Rio Grande, NJ
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in September: 9.4h

The month with the most sunshine is July (Average sunshine: 10.9h).
The month with the least sunshine is February (Average sunshine: 4.9h).

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Average sunshine days in September
Rio Grande, NJ

Average sunshine days in September - Rio Grande, NJ
  • Average sunshine days in September: 15.2 days

The month with the most sunshine days is November (18.9 days).
Months with the least sunshine days are May and June (12.5 days).

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Average UV index in September
Rio Grande, NJ

Average UV index in September - Rio Grande, 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 and December (UV index 2).

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Average cloud cover in September
Rio Grande, NJ

Average cloud cover in September - Rio Grande, NJ
  • Average cloud cover in September: 31

The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 26).

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Average visibility in September
Rio Grande, NJ

Average visibility in September - Rio Grande, NJ
  • Average visibility in September: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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