September weather forecast and climate
El Cerrito, CA

Weather in September

September, the first month of the autumn, in El Cerrito, is also a moderately hot month, with temperature in the range of an average low of 56.5°F (13.6°C) and an average high of 75.7°F (24.3°C).

Temperature

The warmest month is September, with an average high-temperature of 75.7°F (24.3°C) and an average low-temperature of 56.5°F (13.6°C).

Humidity

In September, the average relative humidity is 66%.

Rainfall

Months with the least rainfall in El Cerrito are June through September Rain falls for 2.5 days and accumulates 0.08" (2mm) of rain.

Daylight

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

Sunshine

In El Cerrito, the average sunshine in September is 10.8h.

UV index

April through September, with an average maximum UV index of 5, are months with the highest UV index. A UV Index estimate of 3 to 5 represents a moderate health risk from the exposure to the Sun's UV radiation for the ordinary person.
Note: The daily maximum UV index of 5 interpret into the following advice:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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 warmest month in El Cerrito?

The warmest month in El Cerrito is September, with an average high-temperature of 75.7°F (24.3°C) and an average low-temperature of 56.5°F (13.6°C).

What is the temperature in September in El Cerrito?

The average high-temperature, in September, in El Cerrito, California, is 75.7°F (24.3°C), while the average low-temperature is 56.5°F (13.6°C).

What is the average humidity in September in El Cerrito?

In El Cerrito, the average relative humidity in September is 66%.

How much does it rain in El Cerrito in September?

In El Cerrito, California, during September, the rain falls for 2.5 days and regularly aggregates up to 0.08" (2mm) of precipitation.

What is the driest month in El Cerrito?

Months with the least rainfall in El Cerrito, California, are June through September Rain falls for 2.5 days and accumulates 0.08" (2mm) of rain.

How many hours of daylight does El Cerrito have in September?

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

How long on average sun shines in September in El Cerrito?

In El Cerrito, California, the average sunshine in September is 10.8h.

When is the highest UV index in El Cerrito?

Months with the highest UV index in El Cerrito are April through September, with an average maximum UV index of 5.

What is the UV index intensity in September in El Cerrito?

In El Cerrito, California, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to the UV radiation.

Average temperature in September
El Cerrito, CA

Average temperature in September - El Cerrito, CA
  • Average high temperature in September: 75.7°F

The warmest month (with the highest average high temperature) is September (75.7°F).
The month with the lowest average high temperature is December (55.6°F).

  • Average low temperature in September: 56.5°F

The month with the highest average low temperature is September (56.5°F).
The coldest month (with the lowest average low temperature) is January (44.8°F).

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Average pressure in September
El Cerrito, CA

Average pressure in September - El Cerrito, CA
  • Average pressure in September: 29.92"

The month with the highest atmospheric pressure is January (30.13").
Months with the lowest atmospheric pressure are June, August and September (29.92").

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Average wind speed in September
El Cerrito, CA

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

The windiest month (with the highest average wind speed) is May (7.5mph).
The calmest month (with the lowest average wind speed) is November (5.1mph).

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Average humidity in September
El Cerrito, CA

Average humidity in September - El Cerrito, CA
  • Average humidity in September: 66%

The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is October (65%).

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Average rainfall in September
El Cerrito, CA

Average rainfall in September - El Cerrito, CA
  • Average rainfall in September: 0.08"

The wettest month (with the highest rainfall) is February (1.38").
The driest months (with the least rainfall) are June, July, August and September (0.08").

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Average rainfall days in September
El Cerrito, CA

Average rainfall days in September - El Cerrito, CA
  • Average rainfall days in September: 2.5 days

The month with the highest number of rainy days is March (10.8 days).
The month with the least rainy days is June (2 days).

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Average daylight in September /
Average sunshine in September
El Cerrito, CA

Average daylight in September / Average sunshine in September - El Cerrito, 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: 10.8h

The month with the most sunshine is July (Average sunshine: 11.8h).
The month with the least sunshine is December (Average sunshine: 5.7h).

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Average sunshine days in September
El Cerrito, CA

Average sunshine days in September - El Cerrito, CA
  • Average sunshine days in September: 24.5 days

The month with the most sunshine days is July (24.9 days).
The month with the least sunshine days is March (18.4 days).

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Average UV index in September
El Cerrito, CA

Average UV index in September - El Cerrito, CA
  • Average UV index in September: 5

Months with the highest UV index are April, May, June, July, August and September (UV index 5).
Months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in September
El Cerrito, CA

Average cloud cover in September - El Cerrito, CA
  • Average cloud cover in September: 15

The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 14).

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Average visibility in September
El Cerrito, CA

Average visibility in September - El Cerrito, 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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