Cordova
Alaska, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Cordova, AK

A boat-laden busy bay of Cordova, Alaska, with the view of forests and snow-peaked mountains
A boat-laden busy bay of Cordova, Alaska, with the view of forests and snow-peaked mountains
The first month of the autumn, September, is still a cool month in Cordova, Alaska, with temperature in the range of an average low of 44.2°F (6.8°C) and an average high of 55.2°F (12.9°C).

Temperature

In Cordova, the average high-temperature in September marginally drops, from an enjoyable 61.3°F (16.3°C) in August, to a cool 55.2°F (12.9°C). In Cordova, Alaska, the average low-temperature is 44.2°F (6.8°C).

Rainfall

September is the month with the most rainfall in Cordova. Rain falls for 21 days and accumulates 22.1" (561.1mm) of precipitation.

Snowfall

June, July and September are months without snowfall.

Ocean temperature

In Cordova, the average seawater temperature in September is 53.8°F (12.1°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

In September, the average length of the day is 12.8h.

Sunshine

In September, the average sunshine in Cordova is 5h.

UV index

In Cordova, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to the UV radiation for the average person.
Note: In September, the average maximum UV index of 2 translate into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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.

What is the temperature in September in Cordova?

In Cordova, Alaska, in September, the average high-temperature is 55.2°F (12.9°C), and the average low-temperature is 44.2°F (6.8°C).

How many days does it rain in September in Cordova?

In Cordova, Alaska, in September, it is raining for 21 days, with typically 22.1" (561.1mm) of accumulated precipitation.

What is the rainiest month in Cordova?

September is the month with the most rainfall in Cordova, Alaska. Rain falls for 21 days and accumulates 22.1" (561.1mm) of precipitation.

Does it snow in Cordova in September?

In September, in Cordova, Alaska, it doesn't snow. August is the latest month when it typically snows.

When it does not snow in Cordova?

In Cordova snow does not fall in June, July and September.

How cold is the water in September in Cordova?

In Cordova, Alaska, in September, the average water temperature is 53.8°F (12.1°C). Swimming in 53.8°F (12.1°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

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

The average length of the day in September in Cordova, Alaska, is 12.8h.

How many hours of sunshine does Cordova have in September?

In Cordova, the average sunshine in September is 5h.

What is the UV index reading in September in Cordova?

In Cordova, the average daily maximum UV index in September is 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to the Sun's UV rays.
Average temperature in September - Cordova, AK
  • Average high temperature in September: 55.3°F

The warmest month (with the highest average high temperature) is August (61.3°F).
The month with the lowest average high temperature is January (35°F).

  • Average low temperature in September: 44.3°F

The month with the highest average low temperature is July (50.2°F).
The coldest month (with the lowest average low temperature) is January (25°F).

Average rainfall in September - Cordova, AK
  • Average rainfall in September: 22.1"

The wettest month (with the highest rainfall) is September (22.1").
The driest month (with the lowest rainfall) is June (6.7").

Average rainfall days in September - Cordova, AK
  • Average rainfall days in September: 21 days

Months with the highest number of rainy days are September and October (21 days).
Months with the lowest number of rainy days are February, March, April and June (15 days).

Average snowfall in September - Cordova, AK
  • Average snowfall in September: 0"

The month with the highest snowfall is December (25.3").
Months with the lowest snowfall are June, July and September (0").

Average sea temperature in September - Cordova, AK
  • Average sea temperature in September: 53.7°F

The best month for swimming (with the highest average sea temperature) is July (57.3°F).
The coldest month (with the lowest average sea temperature) is March (39.6°F).

Average daylight in September / Average sunshine in September - Cordova, AK
  • Average daylight in September: 12.8h

The month with the longest days is June (Average daylight: 18.9h).
The month with shortest days is December (Average daylight: 5.9h).

  • Average sunshine in September: 5h

Months with most sunshine are May and June (Average sunshine: 9h).
The month with least sunshine is December (Average sunshine: 2h).

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

Months with the highest UV index are June and July (UV index 5).
Months with the lowest UV index are January, February, November and December (UV index 0).