September weather forecast and climate
Cometa, CA

Weather in September

The first month of the autumn, September, is still a hot month in Cometa, California, with temperature in the range of an average low of 59.7°F (15.4°C) and an average high of 90°F (32.2°C).

Temperature

In September, the average high-temperature slightly decreases, from a torrid 95.5°F (35.3°C) in August, to a hot 90°F (32.2°C). In September, the average low-temperature is 59.7°F (15.4°C).

Heat index

The average heat index in September is calculated to a tropical 91°F (32.8°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'apparent temperature', 'feels like', or 'felt air temperature', is a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect is individual, with diverse people perceiving weather differently for numerous reasons (metabolic differences, clothing, wind), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In September, the average relative humidity is 41%.

Rainfall

In Cometa, California, it is raining for 2 days, with typically 0.08" (2mm) of accumulated precipitation. Throughout the year, there are 59.3 rainfall days, and 8.23" (209mm) of precipitation is accumulated.

Snowfall

January through November are months without snowfall.

Daylight

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

Sunshine

In Cometa, the average sunshine in September is 11.5h.

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 the exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 5 transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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.
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FAQ

What is the temperature in September in Cometa?

The average high-temperature, in September, in Cometa, California, is 90°F (32.2°C), while the average low-temperature is 59.7°F (15.4°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), that combines air temperature and relative humidity, in September is calculated to 91°F (32.8°C).

What is the average humidity in September in Cometa?

The average relative humidity in September in Cometa, California, is 41%.

How much does it rain in Cometa in September?

In Cometa, in September, it is raining for 2 days, with typically 0.08" (2mm) of accumulated precipitation.

When it does not snow in Cometa?

In Cometa, California, snow does not fall in January through November.

How many hours of daylight does Cometa have in September?

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

How many hours of sunshine does Cometa have in September?

In Cometa, the average sunshine in September is 11.5h.

What is the UV index intensity in September in Cometa?

The average daily maximum UV index in September in Cometa is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from the exposure to the Sun's UV radiation.

Average temperature in September
Cometa, CA

Average temperature in September - Cometa, CA
  • Average high temperature in September: 90°F

The warmest month (with the highest average high temperature) is July (96.4°F).
The month with the lowest average high temperature is December (55.4°F).

  • Average low temperature in September: 59.7°F

The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is December (41°F).

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Average pressure in September
Cometa, CA

Average pressure in September - Cometa, CA
  • Average pressure in September: 29.93"

The month with the highest atmospheric pressure is January (30.15").
The month with the lowest atmospheric pressure is June (29.91").

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Average wind speed in September
Cometa, CA

Average wind speed in September - Cometa, CA
  • Average wind speed in September: 5.7mph

The windiest month (with the highest average wind speed) is June (7.1mph).
The calmest month (with the lowest average wind speed) is November (4.9mph).

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Average humidity in September
Cometa, CA

Average humidity in September - Cometa, CA
  • Average humidity in September: 41%

The month with the highest relative humidity is January (72%).
The month with the lowest relative humidity is July (37%).

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Average rainfall in September
Cometa, CA

Average rainfall in September - Cometa, CA
  • Average rainfall in September: 0.08"

The wettest month (with the highest rainfall) is March (1.65").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in September
Cometa, CA

Average rainfall days in September - Cometa, CA
  • Average rainfall days in September: 2 days

The month with the highest number of rainy days is March (11.3 days).
The month with the least rainy days is August (0.7 days).

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Average snowfall in September
Cometa, CA

Average snowfall in September - Cometa, CA
  • Average snowfall in September: 0"

The month with the highest snowfall is December (0.04").
Months with the least snowfall are January, February, March, April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Cometa, CA

Average snowfall days in September - Cometa, CA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is December (0.1 days).
Months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).

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

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

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.6h).

  • Average sunshine in September: 11.5h

The month with the most sunshine is July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 6h).

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Average sunshine days in September
Cometa, CA

Average sunshine days in September - Cometa, CA
  • Average sunshine days in September: 26.8 days

The month with the most sunshine days is August (29.2 days).
The month with the least sunshine days is March (18.7 days).

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Average UV index in September
Cometa, CA

Average UV index in September - Cometa, CA
  • Average UV index in September: 5

Months with the highest UV index are June and July (UV index 7).
Months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in September
Cometa, CA

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

The month with the most cloud cover is March (Cloud cover 33).
The month with the least cloud cover is July (Cloud cover 4).

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Average visibility in September
Cometa, CA

Average visibility in September - Cometa, 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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