September weather forecast
Valdez, AK

Lake water and grown-in surface vegetation in Valdez Province, Alaska
Lake water and grown-in surface vegetation in Valdez Province, Alaska

Weather in September

September, the first month of the autumn in Valdez, is also a frosty month, with an average temperature ranging between max 43.9°F (6.6°C) and min 36.3°F (2.4°C).

Temperature

In Valdez, Alaska, the average high-temperature in September marginally drops from a cool 50.5°F (10.3°C) in August to a chilly 43.9°F (6.6°C). The average low-temperature, is 36.3°F (2.4°C).

Humidity

In September, the average relative humidity is 85%.

Rainfall

In Valdez, it is raining for 18.5 days, with typically 6.89" (175mm) of accumulated precipitation. Throughout the year, there are 167.5 rainfall days, and 56.73" (1441mm) of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.16" (4mm) of snow. In Valdez, during the entire year, snow falls for 88.9 days and aggregates up to 114.06" (2897mm) of snow.

Ocean temperature

In September, the average ocean temperature is 53.2°F (11.8°C).
Note: At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

Daylight

The average length of the day in September in Valdez is 12h and 52min.
On the first day of September in Valdez, sunrise is at 6:38 am and sunset at 8:52 pm. On the last day of the month, sunrise is at 7:49 am and sunset at 7:20 pm AKDT.

Sunshine

In September, the average sunshine is 6.2h.

UV index

The average daily maximum UV index in September is 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The daily maximum UV index of 2 in September interpret into the following advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for the 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. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in September in Valdez?

In Valdez, in September, the average high-temperature is 43.9°F (6.6°C), and the average low-temperature is 36.3°F (2.4°C).

What is the average humidity in September in Valdez?

In Valdez, Alaska, the average relative humidity in September is 85%.

How many days does it rain in September in Valdez?

In Valdez, Alaska, in September, it is raining for 18.5 days, with typically 6.89" (175mm) of accumulated precipitation.

When does it start snowing in Valdez?

September is the first month it typically snows in Valdez, Alaska. Throughout September, in the average 0.1 snowfall days, it receives 0.16" (4mm) of snow.

What is the water temperature in September in Valdez?

In September, the average ocean temperature in Valdez is 53.2°F (11.8°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

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

The average day length in September is 12h and 52min.

What time are sunrise and sunset in September in Valdez?

In September, on the first day of the month, sunrise is at 6:38 am and sunset at 8:52 pm. On the last day of the month, in Valdez, sunrise is at 7:49 am and sunset at 7:20 pm AKDT.

How many hours of sunshine does Valdez have in September?

The average sunshine duration in September is 6.2h.

What is the UV index intensity in September in Valdez?

The average daily maximum UV index in September is 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Valdez, AK

Average temperature in September - Valdez, AK
  • Average high temperature in September: 43.9°F

The warmest month (with the highest average high temperature) is July (53.2°F).
The month with the lowest average high temperature is January (18°F).

  • Average low temperature in September: 36.3°F

The month with the highest average low temperature is July (43.2°F).
The coldest month (with the lowest average low temperature) is January (10°F).

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Average pressure in September
Valdez, AK

Average pressure in September - Valdez, AK
  • Average pressure in September: 29.78"Hg

The month with the highest atmospheric pressure is July (29.98"Hg).
The month with the lowest atmospheric pressure is November (29.69"Hg).

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Average wind speed in September
Valdez, AK

Average wind speed in September - Valdez, AK
  • Average wind speed in September: 4.8mph

The windiest month (with the highest average wind speed) is November (8.1mph).
The calmest month (with the lowest average wind speed) is July (3.7mph).

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Average humidity in September
Valdez, AK

Average humidity in September - Valdez, AK
  • Average humidity in September: 85%

The months with the highest relative humidity are January and April (88%).
The months with the lowest relative humidity are May, June, July and November (83%).

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Average rainfall in September
Valdez, AK

Average rainfall in September - Valdez, AK
  • Average rainfall in September: 6.89"

The wettest month (with the highest rainfall) is December (7.44").
The driest month (with the least rainfall) is June (1.93").

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Average rainfall days in September
Valdez, AK

Average rainfall days in September - Valdez, AK
  • Average rainfall days in September: 18.5 days

The month with the highest number of rainy days is August (18.7 days).
The month with the least rainy days is February (6.2 days).

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Average snowfall in September
Valdez, AK

Average snowfall in September - Valdez, AK
  • Average snowfall in September: 0.16"

The month with the highest snowfall is December (26.73").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in September
Valdez, AK

Average snowfall days in September - Valdez, AK
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is December (17.8 days).
The months with the least snowfall days are June, July and August (0 days).

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Average sea temperature in September
Valdez, AK

Average sea temperature in September - Valdez, AK
  • Average sea temperature in September: 53.2°F

The best month for swimming (with the highest average sea temperature) is July (56.4°F).
The coldest month (with the lowest average sea temperature) is March (38.9°F).

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Average daylight in September /
Average sunshine in September
Valdez, AK

Average daylight in September / Average sunshine in September - Valdez, AK
  • Average daylight in September: 12h and 52min

The month with the longest days is June (Average daylight: 19h and 10min).
The month with the shortest days is December (Average daylight: 5h and 40min).

  • Average sunshine in September: 6h and 12min

The month with the most sunshine is July (Average sunshine: 9h and 30min).
The month with the least sunshine is December (Average sunshine: 2h and 48min).

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Average sunshine days in September
Valdez, AK

Average sunshine days in September - Valdez, AK
  • Average sunshine days in September: 9.8 days

The months with the most sunshine days are January and May (12.3 days).
The month with the least sunshine days is December (9.7 days).

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Average UV index in September
Valdez, AK

Average UV index in September - Valdez, AK
  • Average UV index in September: 2

The months with the highest UV index are June and July (UV index 3).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in September
Valdez, AK

Average cloud cover in September - Valdez, AK
  • Average cloud cover in September: 56

The month with the most cloud cover is December (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 50).

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Average visibility in September
Valdez, AK

Average visibility in September - Valdez, AK
  • Average visibility in September: 5mi

The month with the highest visibility is June (6mi).
The months with the lowest visibility are January, February and April (4mi).

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