September weather forecast and climate
Kentfield, CA

Weather in September

The first month of the autumn, September, is also an agreeable month in Kentfield, California, with average temperature varying between 56.1°F (13.4°C) and 72.3°F (22.4°C).

Temperature

September is the warmest month, with an average high-temperature of 72.3°F (22.4°C) and an average low-temperature of 56.1°F (13.4°C).

Humidity

In September, the average relative humidity is 71%.

Rainfall

Months with the least rainfall in Kentfield, California, are June through September Rain falls for 1.7 days and accumulates 0.04" (1mm) of rain.

Daylight

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

Sunshine

In September, the average sunshine is 10.4h.

UV index

April, June through September, with an average maximum UV index of 5, are months with the highest UV index in Kentfield. A UV Index value of 3 to 5 symbolizes a moderate threat to health from the exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 5 transform into the following instructions:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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 warmest month in Kentfield?

The warmest month in Kentfield, California, is September, with an average high-temperature of 72.3°F (22.4°C) and an average low-temperature of 56.1°F (13.4°C).

What is the temperature in September in Kentfield?

The average high-temperature, in September, in Kentfield, is 72.3°F (22.4°C), while the average low-temperature is 56.1°F (13.4°C).

What is the average humidity in September in Kentfield?

The average relative humidity in September in Kentfield, California, is 71%.

How many days does it rain in September in Kentfield?

In Kentfield, during September, the rain falls for 1.7 days and regularly aggregates up to 0.04" (1mm) of precipitation.

What is the driest month in Kentfield?

Months with the least rainfall are June through September Rain falls for 1.7 days and accumulates 0.04" (1mm) of rain.

How many hours of daylight does Kentfield have in September?

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

How many hours of sunshine does Kentfield have in September?

In September, the average sunshine is 10.4h.

When is the highest UV index in Kentfield?

Months with the highest UV index in Kentfield, California, are April, June through September, with an average maximum UV index of 5.

How high is the UV index in September in Kentfield?

In Kentfield, 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
Kentfield, CA

Average temperature in September - Kentfield, CA
  • Average high temperature in September: 72.3°F

The warmest month (with the highest average high temperature) is September (72.3°F).
The month with the lowest average high temperature is December (55.4°F).

  • Average low temperature in September: 56.1°F

The month with the highest average low temperature is September (56.1°F).
The coldest month (with the lowest average low temperature) is December (45.3°F).

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Average pressure in September
Kentfield, CA

Average pressure in September - Kentfield, 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
Kentfield, CA

Average wind speed in September - Kentfield, CA
  • Average wind speed in September: 5.9mph

The windiest month (with the highest average wind speed) is May (7.8mph).
The calmest months (with the lowest average wind speed) are October and November (5.5mph).

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Average humidity in September
Kentfield, CA

Average humidity in September - Kentfield, CA
  • Average humidity in September: 71%

The month with the highest relative humidity is March (77%).
The month with the lowest relative humidity is October (68%).

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Average rainfall in September
Kentfield, CA

Average rainfall in September - Kentfield, CA
  • Average rainfall in September: 0.04"

The wettest month (with the highest rainfall) is February (0.87").
The driest months (with the least rainfall) are June, July, August and September (0.04").

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Average rainfall days in September
Kentfield, CA

Average rainfall days in September - Kentfield, CA
  • Average rainfall days in September: 1.7 days

The month with the highest number of rainy days is March (8.8 days).
Months with the least rainy days are June and August (1.2 days).

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

Average daylight in September / Average sunshine in September - Kentfield, 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: 10.4h

The month with the most sunshine is July (Average sunshine: 11.2h).
The month with the least sunshine is December (Average sunshine: 5.5h).

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Average sunshine days in September
Kentfield, CA

Average sunshine days in September - Kentfield, CA
  • Average sunshine days in September: 26 days

The month with the most sunshine days is June (26.4 days).
The month with the least sunshine days is March (20.7 days).

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Average UV index in September
Kentfield, CA

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

Months with the highest UV index are April, 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
Kentfield, CA

Average cloud cover in September - Kentfield, CA
  • Average cloud cover in September: 19

The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is September (Cloud cover 19).

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Average visibility in September
Kentfield, CA

Average visibility in September - Kentfield, 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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