Ketchikan weather by month & the best time to visit
🇺🇸 United States · seaside town · oceanic / maritime climate
The best time to visit Ketchikan is July — its sunniest month (Sunshine Score 48/100), with August and June close behind. Ketchikan averages about 1,127 hours of sunshine a year. Daytime highs around 18°C / 64°F and roughly 168 mm of rain in July.
Jump to: month-by-month table · sea temperature · nearby alternatives · embed this data
- Sun hours / year
- 1,127
- Sunniest month
- July
- Peak score
- 48/100
- Rain / year
- 2,754 mm
- Snow / year
- ≈2 m
- Midday UV at peak
- 4 (moderate)
- Sea at warmest
- 17°C / 63°F
- Population
- 8k
- Elevation
- 25 m
When is the best time to visit Ketchikan?
For sunshine, the best time to visit Ketchikan is July, then August and June. The dullest month is January (0/100, 302 mm of rain). The full month-by-month picture is in the table below.
How sunny is Ketchikan?
Ketchikan isn't a sunny place by world standards: about 1,127 hours of sunshine a year. 48 Sunshine Score points separate July (48) from January (0), so the month you pick matters. It ranks #571 of 580 destinations in United States for annual sunshine, below the national median of 2,279 hours. The year's 2,754 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 0 | 3° / 37°F | -1° / 30°F | 302 mm | 0 | 7° / 45°F |
| February | 0 | 3° / 37°F | -2° / 28°F | 186 mm | 0 | 7° / 45°F |
| March | 0 | 5° / 41°F | 0° / 32°F | 208 mm | 1 | 7° / 45°F |
| April | 5 | 9° / 48°F | 3° / 37°F | 184 mm | 2 | 8° / 46°F |
| May | 24 | 13° / 55°F | 6° / 43°F | 147 mm | 3 | 10° / 50°F |
| June | 39 | 16° / 61°F | 9° / 48°F | 147 mm | 4 | 13° / 55°F |
| July | 48 | 18° / 64°F | 12° / 54°F | 168 mm | 4 | 16° / 61°F |
| August | 48 | 18° / 64°F | 12° / 54°F | 219 mm | 3 | 17° / 63°F |
| September | 33 | 15° / 59°F | 9° / 48°F | 279 mm | 2 | 13° / 55°F |
| October | 10 | 10° / 50°F | 5° / 41°F | 325 mm | 1 | 10° / 50°F |
| November | 0 | 5° / 41°F | 1° / 34°F | 301 mm | 0 | 9° / 48°F |
| December | 0 | 3° / 37°F | -1° / 30°F | 288 mm | 0 | 8° / 46°F |
Sea temperature in Ketchikan by month
The sea off Ketchikan is warmest in August at around 17°C / 63°F, and coolest in January at 7°C / 45°F. It never reaches comfortable swimming temperatures (21°C+). Month-by-month sea-surface temperatures are in the Sea column of the table above.
See Ketchikan on the interactive sunshine globe →
Nearby places for sunshine
- Juneau United States · 376 km · best in Jul · 1,229 h sun/yr
- Whitehorse Canada · 627 km · best in Jul · 1,919 h sun/yr
- Fort Saint John Canada · 692 km · best in Aug · 2,300 h sun/yr
- Grande Prairie Canada · 812 km · best in Aug · 2,366 h sun/yr
- Nanaimo Canada · 880 km · best in Jul · 1,738 h sun/yr
- Vancouver Canada · 897 km · best in Jul · 1,739 h sun/yr
Nearest destinations
- Klawock United States · 89 km · 1,181 h sun/yr · best in Jul
- Wrangell United States · 132 km · 1,205 h sun/yr · best in Jul
- Prince Rupert Canada · 144 km · 1,341 h sun/yr · best in Aug
- Masset Canada · 150 km · 1,285 h sun/yr · best in Aug
- Terrace Canada · 223 km · 1,257 h sun/yr · best in Jul
Head-to-head
How Ketchikan compares month by month: Ketchikan vs Juneau · Ketchikan vs Whitehorse · Ketchikan vs Fort Saint John · all comparisons
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