September weather forecast and climate
Pauma Valley, CA

Weather in September

September, the first month of the autumn, in Pauma Valley, is also a moderately hot month, with temperature in the range of an average high of 84.4°F (29.1°C) and an average low of 61.7°F (16.5°C).

Temperature

In September, the average high-temperature is essentially the same as in August - a moderately hot 84.4°F (29.1°C). In Pauma Valley, in September, the average low-temperature is 61.7°F (16.5°C).

Heat index

The average heat index is estimated at a hot 87.1°F (30.6°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'felt air temperature', 'feels like', or 'apparent temperature', is a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional factors like activity, metabolic differences, differences in body mass, height, and shape, and clothing affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, 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

The average relative humidity in September is 56%.

Rainfall

In September, the rain falls for 3.9 days. Throughout September, 0.24" (6mm) of precipitation is accumulated. In Pauma Valley, during the entire year, the rain falls for 51.6 days and collects up to 5.59" (142mm) of precipitation.

Snowfall

January, March through December are months without snowfall in Pauma Valley.

Daylight

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

Sunshine

The average sunshine in Pauma Valley is 10.5h.

UV index

June through September, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from the exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 6 interpret into the following advice:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. 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. 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 Pauma Valley?

In Pauma Valley, California, in September, the average high-temperature is 84.4°F (29.1°C), and the average low-temperature is 61.7°F (16.5°C). In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), that combines relative humidity and air temperature, is evaluated at 87.1°F (30.6°C).

What is the average humidity in September in Pauma Valley?

In September, the average relative humidity is 56%.

How many days does it rain in September in Pauma Valley?

In September, in Pauma Valley, the rain falls for 3.9 days. Throughout September, 0.24" (6mm) of precipitation is accumulated.

When it does not snow in Pauma Valley?

In Pauma Valley snow does not fall in January, March through December.

How many hours of daylight does Pauma Valley have in September?

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

How long on average sun shines in September in Pauma Valley?

In September, the average sunshine in Pauma Valley, California, is 10.5h.

What are the months with the highest UV index in Pauma Valley?

Months with the highest UV index in Pauma Valley, California, are June through September, with an average maximum UV index of 6.

What is the UV index reading in September in Pauma Valley?

In Pauma Valley, California, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health threat from unsafe exposure to the Sun's UV rays.

Average temperature in September
Pauma Valley, CA

Average temperature in September - Pauma Valley, CA
  • Average high temperature in September: 84.4°F

The warmest month (with the highest average high temperature) is August (86.9°F).
The month with the lowest average high temperature is December (62.4°F).

  • Average low temperature in September: 61.7°F

The month with the highest average low temperature is August (63.1°F).
The coldest month (with the lowest average low temperature) is February (44.6°F).

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Average pressure in September
Pauma Valley, CA

Average pressure in September - Pauma Valley, CA
  • Average pressure in September: 29.87"

The month with the highest atmospheric pressure is January (30.09").
The month with the lowest atmospheric pressure is June (29.86").

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Average wind speed in September
Pauma Valley, CA

Average wind speed in September - Pauma Valley, CA
  • Average wind speed in September: 4.2mph

The windiest month (with the highest average wind speed) is April (5.3mph).
The calmest month (with the lowest average wind speed) is September (4.2mph).

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Average humidity in September
Pauma Valley, CA

Average humidity in September - Pauma Valley, CA
  • Average humidity in September: 56%

The month with the highest relative humidity is May (66%).
The month with the lowest relative humidity is November (52%).

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Average rainfall in September
Pauma Valley, CA

Average rainfall in September - Pauma Valley, CA
  • Average rainfall in September: 0.24"

The wettest month (with the highest rainfall) is February (0.94").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in September
Pauma Valley, CA

Average rainfall days in September - Pauma Valley, CA
  • Average rainfall days in September: 3.9 days

The month with the highest number of rainy days is March (7.1 days).
The month with the least rainy days is June (1.3 days).

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Average snowfall days in September
Pauma Valley, CA

Average snowfall days in September - Pauma Valley, CA
  • Average snowfall days in September: 0 days

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

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Average daylight in September /
Average sunshine in September
Pauma Valley, CA

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

The month with the longest days is June (Average daylight: 14.3h).
The month with the shortest days is December (Average daylight: 10h).

  • Average sunshine in September: 10.5h

The month with the most sunshine is July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 6.7h).

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Average sunshine days in September
Pauma Valley, CA

Average sunshine days in September - Pauma Valley, CA
  • Average sunshine days in September: 24.8 days

The month with the most sunshine days is June (28.1 days).
The month with the least sunshine days is February (21.5 days).

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Average UV index in September
Pauma Valley, CA

Average UV index in September - Pauma Valley, CA
  • Average UV index in September: 6

Months with the highest UV index are June, July, August and September (UV index 6).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in September
Pauma Valley, CA

Average cloud cover in September - Pauma Valley, CA
  • Average cloud cover in September: 9

The month with the most cloud cover is March (Cloud cover 25).
The month with the least cloud cover is August (Cloud cover 6).

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Average visibility in September
Pauma Valley, CA

Average visibility in September - Pauma Valley, 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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