September weather forecast
Sonora, CA

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Weather in September

September, the first month of the autumn in Sonora, is also a moderately hot month, with an average temperature ranging between max 85.1°F (29.5°C) and min 58.8°F (14.9°C).

Temperature

September sees a slight reduction in average high-temperature, with a shift from a tropical 90.9°F (32.7°C) in August to a moderately hot 85.1°F (29.5°C). Sonora notes a substantial temperature decline from the daytime peaks throughout September, with an average nighttime temperature of 58.8°F (14.9°C).

Humidity

The average relative humidity in September is 36%.

Rainfall

In Sonora, California, during September, the rain falls for 2.9 days and regularly aggregates up to 0.2" (5mm) of precipitation. In Sonora, during the entire year, the rain falls for 76.7 days and collects up to 23.9" (607mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

The average length of the day in September in Sonora is 12h and 25min.
On the first day of September in Sonora, sunrise is at 6:32 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:45 pm PDT.

Sunshine

In September, the average sunshine in Sonora is 11.3h.

UV index

The average daily maximum UV index in September in Sonora is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: A maximum high UV index of 5 in September translates into the following recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
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Frequently asked questions

How hot does it get in Sonora in September?

In Sonora, in September, the average high-temperature is 85.1°F (29.5°C), and the average low-temperature is 58.8°F (14.9°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in June is calculated to be 82.4°F (28°C).

What is the average humidity in September in Sonora?

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

How many days does it rain in September in Sonora?

In Sonora, California, during September, the rain falls for 2.9 days and regularly aggregates up to 0.2" (5mm) of precipitation.

When it does not snow in Sonora?

April through October are months without snowfall in Sonora.

What is the average length of the day in September in Sonora?

In Sonora, the average day length in September is 12h and 25min.

When is the sunrise / sunset in September in Sonora?

On the first day of September, sunrise is at 6:32 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:45 pm PDT.

How many hours of sunshine does Sonora have in September?

The average sunshine duration in September in Sonora is 11.3h.

How high is the UV index in September in Sonora?

The average daily maximum UV index in September in Sonora is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

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"Hg

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

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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").
The 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).
The 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: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in September: 11h and 2min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).

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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

The 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

The 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).
The 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

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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Sonora, California, USA

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