September weather forecast
West Point, CA

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Weather in September

September, the first month of the autumn in West Point, is still a warm month, with an average temperature fluctuating between 79.9°F (26.6°C) and 54°F (12.2°C).

Temperature

September ushers in a minor alteration in West Point's climate, with the average high-temperature moving from August's warm 85.3°F (29.6°C) to a still moderately hot 79.9°F (26.6°C). September, marked by an average low-temperature of 54°F (12.2°C), indicates a large temperature drop from the daytime peak.

Humidity

In September, the average relative humidity is 39%.

Rainfall

In September, the rain falls for 3.5 days. Throughout September, 0.31" (8mm) of precipitation is accumulated. Throughout the year, there are 78.6 rainfall days, and 31.18" (792mm) of precipitation is accumulated.

Snowfall

In West Point, snow does not fall in June through September.

Daylight

In September, the average length of the day is 12h and 25min.
On the first day of the month, sunrise is at 6:32 am and sunset at 7:31 pm. On the last day of September, sunrise is at 6:57 am and sunset at 6:45 pm PDT.

Sunshine

The average sunshine in September is 11.3h.

UV index

In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.
Note: A maximum daily UV index of 4 during September morphs into the following directions:
Prioritize safety - Suggestions to prevent sun damage are offered. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Updated: Aug 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September?

The high-temperature during September is 79.9°F (26.6°C) and the low-temperature is 54°F (12.2°C).

What is the average humidity in September?

In September, the average relative humidity is 39%.

How many days does it rain in September?

In West Point, in September, during 3.5 rainfall days, 0.31" (8mm) of precipitation is typically accumulated.

When it does not snow?

June through September are months without snowfall.

Does it snow in September?

In West Point, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does West Point have in September?

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

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:32 am and sunset at 7:31 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 West Point have in September?

The average sunshine duration in September is 11.3h.

What is the UV index reading in September?

In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to UV radiation.
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
West Point, CA

Average temperature in September - West Point, CA
  • Average high temperature in September: 79.9°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is December (48.6°F).

  • Average low temperature in September: 54°F

The month with the highest average low temperature is July (57.4°F).
The coldest month (with the lowest average low temperature) is December (32.9°F).

Average pressure in September
West Point, CA

Average pressure in September - West Point, 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).

Average wind speed in September
West Point, CA

Average wind speed in September - West Point, CA
  • Average wind speed in September: 5.2mph

The windiest month (with the highest average wind speed) is February (6.2mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in September
West Point, CA

Average humidity in September - West Point, CA
  • Average humidity in September: 39%

The month with the highest relative humidity is March (74%).
The months with the lowest relative humidity are July and August (37%).

Average rainfall in September
West Point, CA

Average rainfall in September - West Point, CA
  • Average rainfall in September: 0.31"

The wettest month (with the highest rainfall) is March (6.14").
The driest months (with the least rainfall) are July and August (0.08").

Average rainfall days in September
West Point, CA

Average rainfall days in September - West Point, CA
  • Average rainfall days in September: 3.5 days

The month with the highest number of rainy days is March (12.1 days).
The month with the least rainy days is August (1.8 days).

Average snowfall in September
West Point, CA

Average snowfall in September - West Point, CA
  • Average snowfall in September: 0"

The month with the highest snowfall is March (18.98").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
West Point, CA

Average snowfall days in September - West Point, CA
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is March (6.4 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in September /
Average sunshine in September
West Point, CA

Average daylight in September / Average sunshine in September - West Point, 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 30min).

  • Average sunshine in September: 11h and 2min

The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).

Average sunshine days in September
West Point, CA

Average sunshine days in September - West Point, CA
  • Average sunshine days in September: 25.7 days

The month with the most sunshine days is August (27.3 days).
The month with the least sunshine days is March (14.3 days).

Average UV index in September
West Point, CA

Average UV index in September - West Point, CA
  • Average UV index in September: 4

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are February, November and December (UV index 2).

Average cloud cover in September
West Point, CA

Average cloud cover in September - West Point, CA
  • Average cloud cover in September: 7

The month with the most cloud cover is March (Cloud cover 37).
The months with the least cloud cover are July and August (Cloud cover 5).

Average visibility in September
West Point, CA

Average visibility in September - West Point, 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).

West Point, California, USA

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