September weather forecast and climate
Carlotta, CA

Weather in September

September, the first month of the autumn, in Carlotta, is also an agreeable month, with temperature in the range of an average high of 72.5°F (22.5°C) and an average low of 50.9°F (10.5°C).

Temperature

In September, the average high-temperature is practically the same as in August - a pleasant 72.5°F (22.5°C). In September, in Carlotta, the average low-temperature is 50.9°F (10.5°C).

Humidity

With an average relative humidity of 73%, September is the least humid month.

Rainfall

In September, the rain falls for 4 days. Throughout September, 0.59" (15mm) of precipitation is accumulated. Throughout the year, there are 110.9 rainfall days, and 28.27" (718mm) of precipitation is accumulated.

Snowfall

January, March through December are months without snowfall in Carlotta.

Daylight

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

Sunshine

In September, the average sunshine in Carlotta is 10.2h.

UV index

In September, the average daily maximum UV index in Carlotta is 4. 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: In September, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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 temperature in September in Carlotta?

In September, the average high-temperature is 72.5°F (22.5°C), and the average low-temperature is 50.9°F (10.5°C).

What is the least humid month in Carlotta?

The least humid month in Carlotta is September, with an average relative humidity of 73%.

What is the average humidity in September in Carlotta?

In September, the average relative humidity in Carlotta, California, is 73%.

How many days does it rain in September in Carlotta?

In Carlotta, California, in September, during 4 rainfall days, 0.59" (15mm) of precipitation is typically accumulated.

When it does not snow in Carlotta?

January, March through December are months without snowfall in Carlotta.

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

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

How long on average sun shines in September in Carlotta?

In September, the average sunshine in Carlotta is 10.2h.

How high is the UV index in September in Carlotta?

The average daily maximum UV index in September in Carlotta, California, is 4. A UV Index reading of 3 to 5 represents a medium health risk from unsafe exposure to the Sun's UV rays.

Average temperature in September
Carlotta, CA

Average temperature in September - Carlotta, CA
  • Average high temperature in September: 72.5°F

The warmest month (with the highest average high temperature) is August (74.1°F).
The month with the lowest average high temperature is December (52.9°F).

  • Average low temperature in September: 50.9°F

The month with the highest average low temperature is August (51.8°F).
The coldest month (with the lowest average low temperature) is February (39.7°F).

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Average pressure in September
Carlotta, CA

Average pressure in September - Carlotta, CA
  • Average pressure in September: 29.96"

The month with the highest atmospheric pressure is January (30.13").
Months with the lowest atmospheric pressure are August and September (29.96").

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Average wind speed in September
Carlotta, CA

Average wind speed in September - Carlotta, CA
  • Average wind speed in September: 6mph

The windiest month (with the highest average wind speed) is June (7.7mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).

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Average humidity in September
Carlotta, CA

Average humidity in September - Carlotta, CA
  • Average humidity in September: 73%

The month with the highest relative humidity is March (83%).
The month with the lowest relative humidity is September (73%).

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Average rainfall in September
Carlotta, CA

Average rainfall in September - Carlotta, CA
  • Average rainfall in September: 0.59"

The wettest month (with the highest rainfall) is December (4.96").
The driest month (with the least rainfall) is July (0.08").

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Average rainfall days in September
Carlotta, CA

Average rainfall days in September - Carlotta, CA
  • Average rainfall days in September: 4 days

The month with the highest number of rainy days is March (17.3 days).
Months with the least rainy days are July and August (1.8 days).

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Average snowfall in September
Carlotta, CA

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

The month with the highest snowfall is February (0.59").
Months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in September
Carlotta, CA

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

The month with the highest number of snowfall days is February (0.3 days).
Months with the least snowfall days are January, March, April, May, June, July, August, September, October and November (0 days).

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

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

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in September: 10.2h

Months with the most sunshine are July and August (Average sunshine: 11.6h).
The month with the least sunshine is December (Average sunshine: 5h).

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Average sunshine days in September
Carlotta, CA

Average sunshine days in September - Carlotta, CA
  • Average sunshine days in September: 25.8 days

The month with the most sunshine days is July (28.5 days).
The month with the least sunshine days is March (11.9 days).

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Average UV index in September
Carlotta, CA

Average UV index in September - Carlotta, CA
  • Average UV index in September: 4

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

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Average cloud cover in September
Carlotta, CA

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

The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 16).

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Average visibility in September
Carlotta, CA

Average visibility in September - Carlotta, CA
  • Average visibility in September: 6mi

Months with the highest visibility are January, February, March, April, June, September, October, November and December (6mi).
Months with the lowest visibility are May, July and August (5mi).

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