September weather forecast and climate
Selma, CA

Weather in September

September, the first month of the autumn, in Selma, is still a hot month, with average temperature ranging between max 93.6°F (34.2°C) and min 62.1°F (16.7°C).

Temperature

In September, the average high-temperature slightly decreases, from a torrid 99.9°F (37.7°C) in August, to a hot 93.6°F (34.2°C). In September, the average low-temperature is 62.1°F (16.7°C).

Humidity

The average relative humidity in Selma is 33%.

Rainfall

In Selma, during September, the rain falls for 1.9 days and regularly aggregates up to 0.2" (5mm) of precipitation. In Selma, California, during the entire year, the rain falls for 60.9 days and collects up to 12.48" (317mm) of precipitation.

Daylight

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

Sunshine

In Selma, California, the average sunshine in September is 11.2h.

UV index

In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high threat to health from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 6 transform into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in September in Selma?

In Selma, California, in September, the average high-temperature is 93.6°F (34.2°C), and the average low-temperature is 62.1°F (16.7°C).

What is the average humidity in September in Selma?

The average relative humidity in September in Selma is 33%.

How much does it rain in Selma in September?

In Selma, California, in September, during 1.9 rainfall days, 0.2" (5mm) of precipitation is typically accumulated.

How many hours of daylight does Selma have in September?

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

How many hours of sunshine does Selma have in September?

In September, the average sunshine in Selma, California, is 11.2h.

What is the UV index reading in September in Selma?

In September, the average daily maximum UV index in Selma, California, is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from unprotected exposure to the UV radiation.

Average temperature in September
Selma, CA

Average temperature in September - Selma, CA
  • Average high temperature in September: 93.6°F

The warmest month (with the highest average high temperature) is July (100.9°F).
The month with the lowest average high temperature is December (56.5°F).

  • Average low temperature in September: 62.1°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is December (42.1°F).

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Average pressure in September
Selma, CA

Average pressure in September - Selma, CA
  • Average pressure in September: 29.92"

The month with the highest atmospheric pressure is January (30.15").
The month with the lowest atmospheric pressure is June (29.89").

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Average wind speed in September
Selma, CA

Average wind speed in September - Selma, CA
  • Average wind speed in September: 4.9mph

The windiest month (with the highest average wind speed) is June (6.1mph).
The calmest months (with the lowest average wind speed) are January, November and December (4.2mph).

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Average humidity in September
Selma, CA

Average humidity in September - Selma, CA
  • Average humidity in September: 33%

The month with the highest relative humidity is January (67%).
The month with the lowest relative humidity is July (29%).

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Average rainfall in September
Selma, CA

Average rainfall in September - Selma, CA
  • Average rainfall in September: 0.2"

The wettest month (with the highest rainfall) is March (2.32").
The driest month (with the least rainfall) is August (0.04").

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Average rainfall days in September
Selma, CA

Average rainfall days in September - Selma, CA
  • Average rainfall days in September: 1.9 days

The month with the highest number of rainy days is March (10.5 days).
The month with the least rainy days is August (0.9 days).

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Average daylight in September /
Average sunshine in September
Selma, CA

Average daylight in September / Average sunshine in September - Selma, CA
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.6h).
The month with the shortest days is December (Average daylight: 9.7h).

  • Average sunshine in September: 11.2h

The month with the most sunshine is July (Average sunshine: 12.2h).
The month with the least sunshine is December (Average sunshine: 6.3h).

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Average sunshine days in September
Selma, CA

Average sunshine days in September - Selma, CA
  • Average sunshine days in September: 27.3 days

The month with the most sunshine days is August (29.3 days).
The month with the least sunshine days is March (19.4 days).

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Average UV index in September
Selma, CA

Average UV index in September - Selma, CA
  • Average UV index in September: 6

The month with the highest UV index is July (UV index 8).
Months with the lowest UV index are January, November and December (UV index 3).

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Average cloud cover in September
Selma, CA

Average cloud cover in September - Selma, CA
  • Average cloud cover in September: 6

The month with the most cloud cover is March (Cloud cover 29).
The month with the least cloud cover is August (Cloud cover 4).

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Average visibility in September
Selma, CA

Average visibility in September - Selma, CA
  • 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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