Climate guide for Sitka, Alaska

Best Time to Visit
Sitka

How to read the score (0–10)
05810
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01 · Alaska

About Sitka

Sitka blends Russian-era cathedral domes with rainforest islands and whale-rich waters on the outer coast. Plan around May-September for the strongest sightseeing conditions, then fine-tune with monthly climate scores.

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Did you know?

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Travel Tips

01Best time & timing
June leads the year at 6.7/10, with July and August close behind — January (1.8/10) is the one to avoid without a specific reason.
02Weather & what to pack
In June plan for about 11°C; the month brings 97 mm of rain. Pack a mid-weight jacket and shoes you can walk in all day.
03Budget timing
If budget matters most, May is the cheapest month (5.4/10) — expect weather trade-offs.

Things to do in Sitka

Sitka, Alaska. Live activities and tours from GetYourGuide, matched to this destination.

When to visit Sitka: the short answer

Plan Sitka for June, with July, August close behind — the stretch with the most usable temperatures and the fewest lost days to rain: June averages 11°C with 97 mm of rain and about 18 days with 6+ hours of sunshine. The months to avoid unless you have a specific reason are January, December.

Across the year Sitka swings from 3°C in February to 14°C in August, a 11-degree spread, while rainfall ranges from 97 mm in June to 341 mm in October. In short, Sitka is not equally good year-round — the gap between its best and worst month is 4.9 points on the same 10-point scale.

Warmest month: August (14°C). Coolest: February (3°C). Driest: June (97 mm). Wettest: October (341 mm).

Sitka month by month

January in Sitka — the hardest end of the year

Hardest · 1.8/10

At 3°C (37°F) this is proper winter weather in January: layer up and split the day between outdoor highlights and indoor stops.

Expect monsoon-level rainfall at 278 mm: only almost no days with 6+ hours of sunshine across the month, and stretches of heavy rain are normal.

That is 1.8/10 on the same scale — 12th of 12 months, versus 6.7/10 for the best month here.

Expect low-season pricing, and crowds are light for this destination.

Pack insulated layers, a windproof shell, gloves and boots with grip, a proper rain shell rather than an umbrella.

If your dates are flexible, June is materially better in Sitka — 4.9 points higher on the same scale.

February in Sitka — off-season conditions

Hardest · 2.2/10

At 3°C (37°F) this is proper winter weather in February: layer up and split the day between outdoor highlights and indoor stops.

Expect monsoon-level rainfall at 224 mm: only almost no days with 6+ hours of sunshine across the month, and stretches of heavy rain are normal.

That is 2.2/10 on the same scale — 10th of 12 months, versus 6.7/10 for the best month here.

Budget for low-season pricing, and crowds are light for this destination.

Pack insulated layers, a windproof shell, gloves and boots with grip, a proper rain shell rather than an umbrella.

If your dates are flexible, June is materially better in Sitka — 4.5 points higher on the same scale.

March in Sitka — the hardest end of the year

Hardest · 3/10

March averages 3°C (37°F), cold enough that sightseeing works in bursts rather than in one long day on foot.

At 165 mm this is a genuinely wet month: about 1 days with 6+ hours of sunshine in total, and outdoor plans need an indoor fallback.

It scores 3/10 here, 8th of 12 months, against 6.7/10 in the destination's best month.

Figure on low-season pricing, with crowds are light for this destination.

Pack insulated layers, a windproof shell, gloves and boots with grip, a proper rain shell rather than an umbrella.

Flexible dates? June scores 3.7 points higher here — enough to change the trip.

April in Sitka: mixed conditions, plan around the weather

Trade-offs · 5.1/10

Expect 5°C (41°F) in April. A good month for city streets, viewpoints and long meals; leave swimming for another season.

112 mm of rain signals a properly wet month, with only about 11 days with 6+ hours of sunshine to count on — build indoor options into the schedule.

That is 5.1/10 on the same scale — 5th of 12 months, versus 6.7/10 for the best month here.

Budget for mid-season pricing, and crowds are moderate.

Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a proper rain shell rather than an umbrella.

If your dates are flexible, June is materially better in Sitka — 1.6 points higher on the same scale.

May in Sitka — middling scores, decent value

Trade-offs · 5.4/10

May averages 8°C (46°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.

At 142 mm this is a genuinely wet month: about 18 days with 6+ hours of sunshine in total, and outdoor plans need an indoor fallback.

It scores 5.4/10 here, 4th of 12 months, against 6.7/10 in the destination's best month.

Plan for mid-season pricing, with crowds are moderate.

Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a proper rain shell rather than an umbrella.

June: the best month of the year in Sitka

Best window · 6.7/10

Expect 11°C (52°F) in June. A good month for city streets, viewpoints and long meals; leave swimming for another season.

Budget for roughly 97 mm of rain this month — a flexible day or two helps — with about 18 days with 6+ hours of sunshine and 17.6 hours of daylight to work around it.

On our climate-comfort scale this is the top-ranked month of the year for Sitka at 6.7/10 — the reference point every other month on this page is measured against.

Expect peak pricing, and crowds are moderate. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.

Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a packable rain layer.

July in Sitka — workable with trade-offs

Trade-offs · 5.5/10

Temperatures hover around 13°C (56°F) — the kind of month where neither heat nor cold forces the schedule.

167 mm of rain signals a properly wet month, with only about 13 days with 6+ hours of sunshine to count on — build indoor options into the schedule.

That is 5.5/10 on the same scale — 2nd of 12 months, versus 6.7/10 for the best month here.

Budget for peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.

Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella.

August in Sitka: mixed conditions, plan around the weather

Trade-offs · 5.5/10

August averages 14°C (57°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.

At 176 mm this is a genuinely wet month: about 10 days with 6+ hours of sunshine in total, and outdoor plans need an indoor fallback.

It scores 5.5/10 here, 3rd of 12 months, against 6.7/10 in the destination's best month.

Figure on peak pricing, with this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.

Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella.

September in Sitka — the hardest end of the year

Hardest · 3.9/10

September averages 12°C (53°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.

331 mm of rain puts this in monsoon territory — almost no days with 6+ hours of sunshine across the whole month, and multi-day washouts are normal.

It scores 3.9/10 here, 6th of 12 months, against 6.7/10 in the destination's best month.

Figure on low-season pricing, with crowds are light for this destination. That combination — decent conditions at the lowest rates of the year — is the best value window on this page.

Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a proper rain shell rather than an umbrella.

Flexible dates? June scores 2.8 points higher here — enough to change the trip.

October in Sitka: expect compromises

Hardest · 3.2/10

Expect 9°C (48°F) in October. A good month for city streets, viewpoints and long meals; leave swimming for another season.

Expect monsoon-level rainfall at 341 mm: only almost no days with 6+ hours of sunshine across the month, and stretches of heavy rain are normal.

That is 3.2/10 on the same scale — 7th of 12 months, versus 6.7/10 for the best month here.

Budget for low-season pricing, and crowds are light for this destination.

Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a proper rain shell rather than an umbrella.

If your dates are flexible, June is materially better in Sitka — 3.5 points higher on the same scale.

November in Sitka: expect compromises

Hardest · 2.3/10

Expect 5°C (40°F) in November. A good month for city streets, viewpoints and long meals; leave swimming for another season.

Expect monsoon-level rainfall at 257 mm: only almost no days with 6+ hours of sunshine across the month, and stretches of heavy rain are normal.

That is 2.3/10 on the same scale — 9th of 12 months, versus 6.7/10 for the best month here.

Budget for low-season pricing, and crowds are light for this destination.

Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a proper rain shell rather than an umbrella.

If your dates are flexible, June is materially better in Sitka — 4.4 points higher on the same scale.

December in Sitka: expect compromises

Hardest · 1.9/10

December averages 4°C (38°F), cold enough that sightseeing works in bursts rather than in one long day on foot.

268 mm of rain puts this in monsoon territory — almost no days with 6+ hours of sunshine across the whole month, and multi-day washouts are normal.

It scores 1.9/10 here, 11th of 12 months, against 6.7/10 in the destination's best month.

Plan for low-season pricing, with crowds are light for this destination.

Pack insulated layers, a windproof shell, gloves and boots with grip, a proper rain shell rather than an umbrella.

Flexible dates? June scores 4.8 points higher here — enough to change the trip.

FAQ

Frequently asked

When is the best time to visit Sitka, Alaska?
In Ideal Weather mode, the best months to visit Sitka are June. June is the single peak month with an Ideal Weather score of 6.7/10 based on temperature, rainfall, humidity, daylight and days with 6+ hours of sunshine.
What is the weather like in Sitka year-round?
Sitka has a climate profile suited to sightseeing and cultural travel. Average monthly temperatures range from 3°C in February to 14°C in August, with Ideal Weather scores between 1.8 and 6.7 out of 10.
Which months should I avoid in Sitka?
The lowest Ideal Weather-scoring months in Sitka are January (1.8/10), December (1.9/10), February (2.2/10). These months typically combine less comfortable temperatures, higher rainfall or fewer days with 6+ hours of sunshine.
When is the rainy season in Sitka?
October is the wettest month in Sitka, averaging about 341 mm of rainfall. June is the driest, at roughly 97 mm.
Which is the sunniest month in Sitka?
May sees the most sun in Sitka, with about 18 days with 6+ hours of sunshine on average - ideal for outdoor plans.
Is Sitka a good destination for sightseeing and cultural travel?
Sitka is well suited to sightseeing and cultural travel. Its highest Ideal Weather window (June) aligns with the conditions travelers usually look for in this style of trip.
How is the bestime.to score for Sitka calculated?
Each month receives an Ideal Weather score from 0-10 using ERA5 climate normals for Sitka: temperature comfort, precipitation, humidity, daylight hours, and days with 6+ hours of sunshine - weighted for sightseeing and cultural travel.

Climate data: Open-Meteo ERA5 historical archive, the five most recent complete years (2021–2025). Scores are monthly averages for that window, not forecasts, and short-window precipitation can differ from longer-term normals. “Sunny days” count days with at least 6 hours of measured sunshine — they are not dry days.

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Curated in Sitka

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