Gustavus weather by month & the best time to visit
🇺🇸 United States · seaside town · oceanic / maritime climate
Gustavus is short on reliable sunshine. Its best month is July (Score 43/100) — for stronger sun, try one of the nearby alternatives below.
Jump to: month-by-month table · sea temperature · nearby alternatives · embed this data
- Sun hours / year
- 1,229
- Sunniest month
- July
- Peak score
- 43/100
- Rain / year
- 2,979 mm
- Snow / year
- ≈6.2 m
- Midday UV at peak
- 4 (moderate)
- Sea at warmest
- 15°C / 59°F
- Population
- 32k
- Elevation
- 8 m
_in_Juneau%2C_Alaska_2024-08-15.jpg/960px-Queen_Elizabeth_(ship%2C_2010)_in_Juneau%2C_Alaska_2024-08-15.jpg)
When is the best time to visit Gustavus?
Gustavus never gets truly sunny weather: July is as good as it gets at 43/100, and January is the low point (0/100). If sunshine is the point of the trip, the nearby alternatives below do better.
How sunny is Gustavus?
Gustavus isn't a sunny place by world standards: about 1,229 hours of sunshine a year. July (43/100) is noticeably better than January (0). It ranks #562 of 580 destinations in United States for annual sunshine, below the national median of 2,279 hours. The year's 2,979 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 | 1° / 34°F | -3° / 27°F | 317 mm | 0 | 4° / 39°F |
| February | 0 | 1° / 34°F | -3° / 27°F | 210 mm | 0 | 4° / 39°F |
| March | 0 | 2° / 36°F | -2° / 28°F | 190 mm | 1 | 5° / 41°F |
| April | 0 | 6° / 43°F | 2° / 36°F | 164 mm | 2 | 6° / 43°F |
| May | 14 | 11° / 52°F | 6° / 43°F | 156 mm | 3 | 9° / 48°F |
| June | 34 | 15° / 59°F | 10° / 50°F | 146 mm | 4 | 11° / 52°F |
| July | 43 | 17° / 63°F | 12° / 54°F | 188 mm | 3 | 13° / 55°F |
| August | 43 | 17° / 63°F | 12° / 54°F | 265 mm | 3 | 15° / 59°F |
| September | 24 | 13° / 55°F | 9° / 48°F | 334 mm | 2 | 12° / 54°F |
| October | 0 | 8° / 46°F | 5° / 41°F | 363 mm | 1 | 9° / 48°F |
| November | 0 | 3° / 37°F | 0° / 32°F | 310 mm | 0 | 6° / 43°F |
| December | 0 | 1° / 34°F | -2° / 28°F | 336 mm | 0 | 5° / 41°F |
Sea temperature in Gustavus by month
The sea off Gustavus is warmest in August at around 15°C / 59°F, and coolest in January at 4°C / 39°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 Gustavus on the interactive sunshine globe →
Nearby places for sunshine
- Juneau United States · 66 km · best in Jul · 1,229 h sun/yr
- Whitehorse Canada · 256 km · best in Jul · 1,919 h sun/yr
- Ketchikan United States · 419 km · best in Jul · 1,127 h sun/yr
- Anchorage United States · 853 km · best in Jul · 1,720 h sun/yr
- Fort Saint John Canada · 928 km · best in Aug · 2,300 h sun/yr
- Fairbanks United States · 955 km · best in Jun · 2,066 h sun/yr
Nearest destinations
- Hoonah United States · 41 km · 1,227 h sun/yr · best in Jul
- Haines United States · 92 km · 1,523 h sun/yr · best in Jul
- Skagway United States · 117 km · 1,525 h sun/yr · best in Jul
- Sitka United States · 155 km · 1,083 h sun/yr · best in Jul
Put the Gustavus sunshine badge on your site
A compact badge showing Gustavus's sunshine at a glance — free to embed under CC BY 4.0. Paste this wherever you'd like it to appear:
Live preview — this is exactly what your readers see: