September weather forecast and climate
Sonora, CA

Weather in September

The first month of the autumn, September, is also a moderately hot month in Sonora, California, with temperature in the range of an average high of 85.1°F (29.5°C) and an average low of 58.8°F (14.9°C).

Temperature

In September, the average high-temperature slightly decreases, from a tropical 90.9°F (32.7°C) in August, to a warm 85.1°F (29.5°C). In Sonora, the average low-temperature is 58.8°F (14.9°C).

Humidity

In Sonora, the average relative humidity in September is 36%.

Rainfall

In Sonora, California, in September, during 2.9 rainfall days, 0.2" (5mm) of precipitation is typically accumulated. Throughout the year, there are 76.7 rainfall days, and 23.9" (607mm) of precipitation is accumulated.

Snowfall

In Sonora snow does not fall in April through October.

Daylight

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

Sunshine

The average sunshine in September is 11.3h.

UV index

In September, the average daily maximum UV index in Sonora, California, is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected 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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in September in Sonora?

In September, in Sonora, the average high-temperature is 85.1°F (29.5°C), and the average low-temperature is 58.8°F (14.9°C).

What is the average humidity in September in Sonora?

In Sonora, the average relative humidity in September is 36%.

How much does it rain in Sonora in September?

In Sonora, California, in September, it is raining for 2.9 days, with typically 0.2" (5mm) of accumulated precipitation.

When it does not snow in Sonora?

In Sonora, California, snow does not fall in April through October.

How many hours of daylight does Sonora have in September?

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

How long on average sun shines in September in Sonora?

In September, the average sunshine is 11.3h.

How high is the UV index in September in Sonora?

In September, the average daily maximum UV index in Sonora, California, is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from the exposure to the Sun's UV rays.

Average temperature in September
Sonora, CA

Average temperature in September - Sonora, CA
  • Average high temperature in September: 85.1°F

The warmest month (with the highest average high temperature) is July (91.4°F).
The month with the lowest average high temperature is December (52.9°F).

  • Average low temperature in September: 58.8°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is December (37.2°F).

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Average pressure in September
Sonora, CA

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

The month with the highest atmospheric pressure is January (30.16").
The month with the lowest atmospheric pressure is June (29.91").

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Average wind speed in September
Sonora, CA

Average wind speed in September - Sonora, CA
  • Average wind speed in September: 5mph

The windiest months (with the highest average wind speed) are February, March and April (5.7mph).
The calmest months (with the lowest average wind speed) are November and December (4.7mph).

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Average humidity in September
Sonora, CA

Average humidity in September - Sonora, CA
  • Average humidity in September: 36%

The month with the highest relative humidity is March (70%).
The month with the lowest relative humidity is July (32%).

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Average rainfall in September
Sonora, CA

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

The wettest month (with the highest rainfall) is March (4.76").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in September
Sonora, CA

Average rainfall days in September - Sonora, CA
  • Average rainfall days in September: 2.9 days

The month with the highest number of rainy days is March (13.4 days).
The month with the least rainy days is August (1.4 days).

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Average snowfall in September
Sonora, CA

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

The month with the highest snowfall is February (2.72").
Months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Sonora, CA

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

The month with the highest number of snowfall days is February (1.2 days).
Months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - Sonora, 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: 11.3h

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
Sonora, CA

Average sunshine days in September - Sonora, CA
  • Average sunshine days in September: 26.6 days

Months with the most sunshine days are July and August (28.4 days).
The month with the least sunshine days is March (16.8 days).

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Average UV index in September
Sonora, CA

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

Months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is November (UV index 2).

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Average cloud cover in September
Sonora, CA

Average cloud cover in September - Sonora, CA
  • Average cloud cover in September: 7

The month with the most cloud cover is March (Cloud cover 35).
Months with the least cloud cover are July and August (Cloud cover 5).

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Average visibility in September
Sonora, CA

Average visibility in September - Sonora, 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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