Sitka in September
In September, Sitka averages 14°C (58°F) during the day and 10°C (50°F) at night, with frequent rain — about 23 days of the month see precipitation (317 mm total).
Off-peakConditions are cool — bring a jacket for evenings. Expect daily rain or showers, often in heavy bursts.
It's peak hurricane season in Sitka during September. Travel is possible but expect storm risk, possible flight disruption, and generally lower travel insurance coverage.
How September compares to the rest of the year in Sitka
September is in the middle of the year for warmth in Sitka (4th of 12) and moderately rainy compared to the rest of the year (8th of 12). Daytime temperature runs 5°C above the annual average (9°C). September runs 2°C cooler than August (17°C) and cools 4°C in October (10°C).
September sunrise & sunset in Sitka
Times shown for Sitka local time (America/Sitka), calculated for the 15th of September. They shift by a few minutes day to day across the month.
Photography light in Sitka — September
Golden-hour and blue-hour windows for the 15th of September, in Sitka's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Sitka in September
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on September's tier (Off-peak) and Sitka's popularity.
Crowds & pricing — September in Sitka
This is off-peak for Sitka — the lowest prices of the year and the fewest crowds, but with real trade-offs: some restaurants, hotels, and beach businesses may close for the season; weather conditions can make outdoor activities unpredictable; and a handful of seasonal sights run reduced hours or close entirely. Great if you prefer a quiet local rhythm and don't mind the climate giving you reasons to choose indoor activities.
Why this tier: peak hazard season (1 active)
Sun & mosquito risk — September in Sitka
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Sitka in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 3°C / 38°F | 0°C / 32°F | 321 mm | 25 | — |
| February | 3°C / 37°F | -2°C / 28°F | 260 mm | 20 | — |
| March | 4°C / 40°F | -1°C / 31°F | 202 mm | 22 | — |
| April | 7°C / 45°F | 3°C / 37°F | 211 mm | 23 | — |
| May | 12°C / 54°F | 7°C / 44°F | 116 mm | 20 | — |
| June | 15°C / 58°F | 10°C / 50°F | 134 mm | 24 | — |
| July | 17°C / 62°F | 12°C / 54°F | 143 mm | 23 | — |
| August | 17°C / 62°F | 12°C / 54°F | 248 mm | 24 | — |
| September | 14°C / 58°F | 10°C / 50°F | 317 mm | 23 | — |
| October | 10°C / 50°F | 6°C / 42°F | 377 mm | 24 | — |
| November | 6°C / 42°F | 2°C / 35°F | 365 mm | 24 | — |
| December | 3°C / 38°F | 0°C / 31°F | 359 mm | 23 | — |
Other cities with similar September weather
🌍 See the full ranked list of climate twins for Sitka in September →
Frequently asked questions
How hot is Sitka in September?
In September, Sitka averages a high of 14°C (58°F) and a low of 10°C (50°F) — generally cool.
Does it rain a lot in Sitka in September?
September is quite rainy in Sitka, with about 23 rainy days on average.
Is September a good time to visit Sitka?
September is cool but on the rainy side. It suits travelers who are comfortable with cool weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Sitka in September?
Pack a warm jacket and layers, plus a compact umbrella or rain jacket. See the full September packing list for Sitka for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.