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

September weather forecast and climate
Kodiak, AK

Natural forests, mountains, and distant hill ranges surrounding the small town of Kodiak in Alaska
Natural forests, mountains, and distant hill ranges surrounding the small town of Kodiak in Alaska
The first month of the autumn, September, is still a mild month in Kodiak, Alaska, with average temperature varying between 56.7°F (13.7°C) and 43.3°F (6.3°C).

Temperature

In Kodiak, the average high-temperature in September is essentially the same as in August - a moderate 56.7°F (13.7°C). The average low-temperature, in September, is 43.3°F (6.3°C).

Rainfall

In Kodiak, Alaska, in September, it is raining for 16 days, with typically 7.8" (199.1mm) of accumulated precipitation. Throughout the year, there are 191 rainfall days, and 75.4" (1913.9mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall in Kodiak.

Ocean temperature

In Kodiak, the average seawater temperature in September is 51.1°F (10.6°C).
Note: Swimming in 51.1°F (10.6°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

Daylight

In Kodiak, the average length of the day is 12.7h.

Sunshine

The average sunshine is 6h.

UV index

In Kodiak, Alaska, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from the exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 3 transform into the following instructions:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in September in Kodiak?

In September, in Kodiak, the average high-temperature is 56.7°F (13.7°C), and the average low-temperature is 43.3°F (6.3°C).

How much does it rain in Kodiak in September?

In September, in Kodiak, Alaska, the rain falls for 16 days. Throughout September, 7.8" (199.1mm) of precipitation is accumulated.

Does it snow in Kodiak in September?

In Kodiak, Alaska, in September, it doesn't snow. In October, it regularly snows.

When it does not snow in Kodiak?

In Kodiak, Alaska, snow does not fall in June through September.

How cold is the water in September in Kodiak?

In Kodiak, in September, the average water temperature is 51.1°F (10.6°C). Swimming in 51.1°F (10.6°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

How many hours of daylight does Kodiak have in September?

In Kodiak, Alaska, the average length of the day in September is 12.7h.

How many hours of sunshine does Kodiak have in September?

The average sunshine in September in Kodiak, Alaska, is 6h.

What is the UV index reading in September in Kodiak?

The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate health threat from unsafe exposure to the Sun's UV rays.
Average temperature in September - Kodiak, AK
  • Average high temperature in September: 13.7°C

The warmest month (with the highest average high temperature) is August (16.6°C).
The month with the lowest average high temperature is January (1.7°C).

  • Average low temperature in September: 6.3°C

The month with the highest average low temperature is August (9.1°C).
The coldest month (with the lowest average low temperature) is January (-4.1°C).

Average rainfall in September - Kodiak, AK
  • Average rainfall in September: 199.1mm

The wettest month (with the highest rainfall) is October (212.3mm).
The driest month (with the lowest rainfall) is July (104.6mm).

Average rainfall days in September - Kodiak, AK
  • Average rainfall days in September: 16 days

Months with the highest number of rainy days are January, May and December (17 days).
The month with the lowest number of rainy days is August (14 days).

Average snowfall in September - Kodiak, AK
  • Average snowfall in September: 0mm

The month with the highest snowfall is February (444.5mm).
Months with the lowest snowfall are June, July, August and September (0mm).

Average sea temperature in September - Kodiak, AK
  • Average sea temperature in September: 10.6°C

The best month for swimming (with the highest average sea temperature) is August (11.9°C).
The coldest month (with the lowest average sea temperature) is March (4.2°C).

Average daylight in September / Average sunshine in September - Kodiak, AK
  • Average daylight in September: 12.7h

The month with the longest days is June (Average daylight: 18h).
The month with shortest days is December (Average daylight: 6.6h).

  • Average sunshine in September: 6h

Months with most sunshine are May and June (Average sunshine: 9h).
Months with least sunshine are November and December (Average sunshine: 3).

Average UV index in September - Kodiak, AK
  • Average UV index in September: 3

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