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Climate · Sitka

Sitka in September

Mild and wet, as the days shorten.

Typical weather, averaged over 30 years

September in Sitka is mild: highs near 61°F, lows near 49°F. Rain falls on about five days a week, more often as the month goes on, and the days shorten by 1 hour 45 minutes from the first week to the last.September in Sitka is mild: highs near 16°C, lows near 9°C. Rain falls on about five days a week, more often as the month goes on, and the days shorten by 1 hour 45 minutes from the first week to the last.

High
61°F16°Caverage
Low
49°F9°Caverage
Wet days
5a week · 74% of days
Daylight
12h 37mon average

Is September a good time to visit Sitka?

A good month, just outside Sitka's best months, which run from July to August.

How we judge it: every month is scored on how close its typical high comes to the range from 70°F to 80°F, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.How we judge it: every month is scored on how close its typical high comes to the range from 21°C to 27°C, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.

How September sits in the year

week by week

Temperature

Highs near 61°F in September, against 39°F to 65°F through the year.Highs near 16°C in September, against 4°C to 18°C through the year.

Chance of a wet day

74% of days in September, against 59% to 77% through the year.

Cloud cover

71% cover in September, against 66% to 75% through the year.

Daylight

12h 37m in September, against 6h 48m to 17h 47m through the year.

Week by week, lightly smoothed, with September shaded. The olive line marks the best months. Hover or tap a week for its figures.

Either side

  1. August65°18°low 53°low 12°4 wet days a weekRain on about four days a week.
  2. September61°16°low 49°low 9°5 wet days a weekRain on about five days a week.
  3. October54°12°low 42°low 6°5 wet days a weekRain on about five days a week.

Where Sitka sits, in September

America/Sitka
this place
typical high in September 40°F4°C95°F35°C
Sunrise, mid-September
6:30 AMsets 7:24 PM
Above the sea
0 mlow-lying
Latitude
57.1°Nnorthern hemisphere
Nearest of ours
Ketchikan297 km south-east

The land around Sitka, shaded by its typical high in September, the planning map's own layer. Hover the map for the figure at that spot; tap it on a phone. Clock times are local, for the 15th.

Elsewhere in United States in September

high · low · wet days
See September on the planning mapThe whole year in Sitka

Typical weather, averaged over 30 years (1995–2024), read 19 km north-west of Sitka. Its own grid square is mostly sea and holds only a daily average, so the page reads the nearest square with a true high and low near the town's height. Temperatures are adjusted against 66 weather stations: daytime highs read about 3.1°F cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (0 m) against the climate model's (99 m).Temperatures are adjusted against 66 weather stations: daytime highs read about 1.7°C cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (0 m) against the climate model's (99 m). Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not. Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.

Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not.

Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.