September weather forecast
Shelter Cove, CA

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Weather in September

September, the first month of the autumn in Shelter Cove, is also an agreeable month, with an average temperature varying between 54.3°F (12.4°C) and 69.8°F (21°C).

Temperature

September, on average, is the warmest month, registering a high temperature of 69.8°F (21°C) and a low of 54.3°F (12.4°C).

Humidity

September is the least humid month, with an average relative humidity of 72%.

Rainfall

In Shelter Cove, in September, it is raining for 3.5 days, with typically 0.47" (12mm) of accumulated precipitation. Throughout the year, there are 102.7 rainfall days, and 28.78" (731mm) of precipitation is accumulated.

Snowfall

In Shelter Cove, snow does not fall in January, March through December.

Daylight

In September, the average length of the day is 12h and 26min.
On the first day of September, sunrise is at 6:44 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 6:59 pm PDT.

Sunshine

In September, the average sunshine is 10.4h.

UV index

In Shelter Cove, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.
Note: During September, 4 as the daily maximum UV index converts into the following advice:
Ensure safety - Recommendations to avert sunburn are presented. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.

Frequently asked questions

What time of the year is the hottest?

Shelter Cove's September weather reaches an average high of 69.8°F (21°C) and an average low of 54.3°F (12.4°C), making it the warmest month.

What are September temperatures in Shelter Cove?

The high-temperature, in September, in Shelter Cove, records 69.8°F (21°C), while the low-temperature is 54.3°F (12.4°C).

What is the least humid month?

The least humid month is September, with an average relative humidity of 72%.

What is the average humidity in September?

In September, the average relative humidity is 72%.

How many days does it rain in September?

In Shelter Cove, during September, the rain falls for 3.5 days and regularly aggregates up to 0.47" (12mm) of precipitation.

When it does not snow?

January, March through December are months without snowfall in Shelter Cove.

What is the average length of the day in September?

In September, the average day length is 12h and 26min.

When are sunrise and sunset in September in Shelter Cove?

In September, on the first day of the month, sunrise is at 6:44 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 6:59 pm PDT.

How long on average sun shines in September?

In September, the average sunshine duration is 10.4h.

What is the UV index reading in September?

The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Shelter Cove, CA

Average temperature in September - Shelter Cove, CA
  • Average high temperature in September: 69.8°F

The warmest month (with the highest average high temperature) is September (69.8°F).
The month with the lowest average high temperature is December (53.4°F).

  • Average low temperature in September: 54.3°F

The months with the highest average low temperature are July, August and September (54.3°F).
The coldest month (with the lowest average low temperature) is February (43.5°F).

Average pressure in September
Shelter Cove, CA

Average pressure in September - Shelter Cove, CA
  • Average pressure in September: 29.95"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are August and September (29.95"Hg).

Average wind speed in September
Shelter Cove, CA

Average wind speed in September - Shelter Cove, CA
  • Average wind speed in September: 8.1mph

The windiest month (with the highest average wind speed) is June (10.6mph).
The calmest months (with the lowest average wind speed) are January and August (7.8mph).

Average humidity in September
Shelter Cove, CA

Average humidity in September - Shelter Cove, CA
  • Average humidity in September: 72%

The month with the highest relative humidity is March (81%).
The month with the lowest relative humidity is September (72%).

Average rainfall in September
Shelter Cove, CA

Average rainfall in September - Shelter Cove, CA
  • Average rainfall in September: 0.47"

The wettest month (with the highest rainfall) is December (5.31").
The driest month (with the least rainfall) is July (0.08").

Average rainfall days in September
Shelter Cove, CA

Average rainfall days in September - Shelter Cove, CA
  • Average rainfall days in September: 3.5 days

The month with the highest number of rainy days is March (16.4 days).
The month with the least rainy days is August (1.8 days).

Average snowfall days in September
Shelter Cove, CA

Average snowfall days in September - Shelter Cove, CA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).

Average daylight in September /
Average sunshine in September
Shelter Cove, CA

Average daylight in September / Average sunshine in September - Shelter Cove, CA
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in September: 10h and 2min

The months with the most sunshine are July and August (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

Average sunshine days in September
Shelter Cove, CA

Average sunshine days in September - Shelter Cove, CA
  • Average sunshine days in September: 25.9 days

The month with the most sunshine days is July (28.4 days).
The month with the least sunshine days is March (13.1 days).

Average UV index in September
Shelter Cove, CA

Average UV index in September - Shelter Cove, CA
  • Average UV index in September: 4

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

Average cloud cover in September
Shelter Cove, CA

Average cloud cover in September - Shelter Cove, CA
  • Average cloud cover in September: 14

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 10).

Average visibility in September
Shelter Cove, CA

Average visibility in September - Shelter Cove, 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).

Shelter Cove, California, USA

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