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

September weather forecast and climate
Kenai, AK

The iconic high rock cliffs of the scenic Spire Cove in Fjords National Park in Kenai, Alaska
The iconic high rock cliffs of the scenic Spire Cove in Fjords National Park in Kenai, Alaska
The first month of the autumn, September, is still a mild month in Kenai, Alaska, with average temperature fluctuating between 55.4°F (13°C) and 39.4°F (4.1°C).

Temperature

In September, the average high-temperature marginally drops, from an enjoyable 62.4°F (16.9°C) in August, to a mild 55.4°F (13°C). The average low-temperature, in September, is 39.4°F (4.1°C).

Rainfall

The month with the most rainfall in Kenai is September when the rain falls for 15.7 days and typically aggregates up to 3.3" (83.1mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall in Kenai. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.2" (5.1mm) of snow. In Kenai, Alaska, during the entire year, snow falls for 39.6 days, and aggregates up to 63.7" (1618mm) of snow.

Ocean temperature

In Kenai, the average seawater temperature in September is 52.3°F (11.3°C).
Note: Swimming in 52.3°F (11.3°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

Daylight

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

What is the temperature in September in Kenai?

The average high-temperature, in September, is 55.4°F (13°C), while the average low-temperature is 39.4°F (4.1°C).

How much does it rain in Kenai in September?

In Kenai, Alaska, in September, it is raining for 15.7 days, with typically 3.3" (83.1mm) of accumulated precipitation.

What is the rainiest month in Kenai?

The month with the most rainfall in Kenai is September when the rain falls for 15.7 days and typically aggregates up to 3.3" (83.1mm) of precipitation.

When does it start snowing in Kenai?

September is the first month it typically snows in Kenai. Throughout September, in the average 0.1 snowfall days, it receives 0.2" (5.1mm) of snow.

What is the ocean temperature in September in Kenai?

In Kenai, the average seawater temperature in September is 52.3°F (11.3°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 Kenai?

In Kenai, Alaska, the average length of the day in September is 12.8h.
Average temperature in September - Kenai, AK
  • Average high temperature in September: 55.4°F

The warmest month (with the highest average high temperature) is July (62.7°F).
The month with the lowest average high temperature is January (23.2°F).

  • Average low temperature in September: 39.3°F

The month with the highest average low temperature is July (48.6°F).
The coldest month (with the lowest average low temperature) is January (8.3°F).

Average rainfall in September - Kenai, AK
  • Average rainfall in September: 3.3"

The wettest month (with the highest rainfall) is September (3.3").
Driest months (with the lowest rainfall) are March and April (0.6").

Average rainfall days in September - Kenai, AK
  • Average rainfall days in September: 15.7 days

The month with the highest number of rainy days is September (15.7 days).
The month with the lowest number of rainy days is April (5.7 days).

Average snowfall in September - Kenai, AK
  • Average snowfall in September: 0.2"

The month with the highest snowfall is December (14.2").
Months with the lowest snowfall are June, July and August (0").

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

The month with the highest number of snowfall days is December (9.1 days).
Months with the lowest number of snowfall days are June, July and August (0 days).

Average sea temperature in September - Kenai, AK
  • Average sea temperature in September: 52.3°F

The best month for swimming (with the highest average sea temperature) is August (53.4°F).
The coldest month (with the lowest average sea temperature) is February (34.2°F).

Average daylight in September - Kenai, 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: 5.8h).