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

September weather forecast and climate
Sitka, AK

The glacial carved Three Sisters Mountains in Sitka, Alaska
The glacial carved Three Sisters Mountains in Sitka, Alaska
The first month of the autumn, September, is also a moderate month in Sitka, Alaska, with temperature in the range of an average high of 57.7°F (14.3°C) and an average low of 48.2°F (9°C).

Temperature

In Sitka, the average high-temperature in September is almost the same as in August - a mild 57.7°F (14.3°C). In Sitka, the average low-temperature is 48.2°F (9°C).

Rainfall

In Sitka, during 22.3 rainfall days, 11.9" (301mm) of precipitation is typically accumulated. In Sitka, during the entire year, the rain falls for 235 days and collects up to 86.7" (2201.5mm) of precipitation.

Snowfall

In Sitka, it doesn't snow. In October, it regularly snows. Throughout the year, 33" (838.1mm) of snow is accumulated.

Daylight

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

What is the temperature in September in Sitka?

In September, the average high-temperature is 57.7°F (14.3°C), and the average low-temperature is 48.2°F (9°C).

How many days does it rain in September in Sitka?

In Sitka, Alaska, during September, the rain falls for 22.3 days and regularly aggregates up to 11.9" (301mm) of precipitation.

Does it snow in Sitka in September?

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

How many hours of daylight does Sitka have in September?

In Sitka, Alaska, the average length of the day in September is 12.7h.
Average temperature in September - Sitka, AK
  • Average high temperature in September: 57.8°F

The warmest month (with the highest average high temperature) is August (61.9°F).
The month with the lowest average high temperature is January (40.5°F).

  • Average low temperature in September: 48.2°F

The month with the highest average low temperature is August (52.5°F).
The coldest month (with the lowest average low temperature) is February (32.1°F).

Average rainfall in September - Sitka, AK
  • Average rainfall in September: 11.9"

The wettest month (with the highest rainfall) is October (13.2").
The driest month (with the lowest rainfall) is June (2.9").

Average rainfall days in September - Sitka, AK
  • Average rainfall days in September: 22.3 days

The month with the highest number of rainy days is October (24.4 days).
The month with the lowest number of rainy days is June (15.5 days).

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

The month with the highest snowfall is January (9.1").
Months with the lowest snowfall are May, June, July, August and September (0").

Average snowfall days in September - Sitka, AK
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (4.8 days).
Months with the lowest number of snowfall days are June, July, August and September (0 days).

Average daylight in September - Sitka, AK
  • Average daylight in September: 12.7h

The month with the longest days is June (Average daylight: 17.8h).
The month with shortest days is December (Average daylight: 6.8h).