Weather for Gustavus, Alaska
Current Weather
Five Day Weather Forecast
Mon
H: 52°F
L: 49°F
Tue
H: 58°F
L: 48°F
Wed
H: 57°F
L: 46°F
Thu
H: 56°F
L: 44°F
Fri
H: 51°F
L: 49°F
Air Quality
Nitrogen Dioxide: 1.3 μg/m3
Sulphur Dioxide: 0.5 μg/m3
Ozone: 49 μg/m3
Astronomical
Sun Transit: 1:07 PM
Sunset: 10:08 PM
Daylight: 18 hrs 1 mins
Moon Transit: 5:58 AM
Moonset: 12:33 AM
Moon Phase: Last Quarter
Moon Illumination: 48.6%
Best Times for Fishing or Hunting
Major Periods
5:28 AM - 7:58 AM8:45 AM - 11:15 AM
Minor Periods
12:03 AM - 1:33 PM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Small Craft Advisory issued July 6 at 12:56AM AKDT until July 6 at 4:00PM AKDT by NWS Juneau AK
Effective: Mon July 6, 2026, 12:56 AM
Expires: Mon July 6, 2026, 9:00 AM
* WHAT...Northeast winds increasing to 25 kt. * WHERE...Cross Sound. * WHEN...From 10 AM to 4 PM AKDT Monday. * IMPACTS...Conditions will be hazardous to small craft.
Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.
Small Craft Advisory issued July 5 at 10:40PM AKDT until July 6 at 4:00PM AKDT by NWS Juneau AK
Effective: Sun July 5, 2026, 10:40 PM
Expires: Mon July 6, 2026, 6:45 AM
* WHAT...Northeast winds 15 to 25 kt expected. * WHERE...Cross Sound. * WHEN...From 10 AM to 4 PM AKDT Monday. * IMPACTS...Conditions will be hazardous to small craft.
Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.
Small Craft Advisory issued July 5 at 10:30PM AKDT until July 6 at 5:00PM AKDT by NWS Juneau AK
Effective: Sun July 5, 2026, 10:30 PM
Expires: Mon July 6, 2026, 7:45 AM
Southeast Alaska Inside Waters from Dixon Entrance to Skagway Wind forecasts reflect the predominant speed and direction expected. Sea forecasts represent the average of the highest one-third of the combined windwave and swell height. .TONIGHT...NE wind 15 kt. Seas 5 ft. Showers. .MON...NE wind 25 kt. Seas 5 ft. Showers. .MON NIGHT...NE wind 15 kt. Seas 5 ft. Showers. .TUE...Light winds. Seas 4 ft. Showers and slight chance of thunderstorms. .TUE NIGHT...W wind 10 kt. Seas 4 ft. .WED...Light winds. Seas 3 ft. .THU...N wind 10 kt. Seas 4 ft. .FRI...Light winds. Seas 4 ft.
Small Craft Advisory issued July 5 at 4:30PM AKDT until July 6 at 5:00PM AKDT by NWS Juneau AK
Effective: Sun July 5, 2026, 4:30 PM
Expires: Mon July 6, 2026, 7:45 AM
Southeast Alaska Inside Waters from Dixon Entrance to Skagway Wind forecasts reflect the predominant speed and direction expected. Sea forecasts represent the average of the highest one-third of the combined windwave and swell height. .TONIGHT...NE wind 15 kt. Seas 5 ft. Showers. .MON...NE wind 25 kt. Seas 5 ft. Showers. .MON NIGHT...NE wind 15 kt. Seas 5 ft. Showers. .TUE...Light winds. Seas 4 ft. Showers and slight chance of thunderstorms. .TUE NIGHT...W wind 10 kt. Seas 4 ft. .WED...Light winds. Seas 3 ft. .THU...N wind 10 kt. Seas 4 ft. .FRI...Light winds. Seas 4 ft.
Small Craft Advisory issued July 5 at 4:30PM AKDT until July 6 at 5:00PM AKDT by NWS Juneau AK
Effective: Sun July 5, 2026, 4:30 PM
Expires: Mon July 6, 2026, 7:45 AM
Southeast Alaska Inside Waters from Dixon Entrance to Skagway Wind forecasts reflect the predominant speed and direction expected. Sea forecasts represent the average of the highest one-third of the combined windwave and swell height. .TONIGHT...Light winds increasing to NE wind 15 kt late. Seas 5 ft. Showers. .MON...NE wind 25 kt. Seas 5 ft. Showers. .MON NIGHT...NE wind 15 kt. Seas 5 ft. Showers. .TUE...Light winds. Seas 4 ft. Showers and slight chance of thunderstorms. .TUE NIGHT...W wind 10 kt. Seas 4 ft. .WED...Light winds. Seas 3 ft. .THU...N wind 10 kt. Seas 4 ft. .FRI...Light winds. Seas 4 ft.
Weather Forecast
Air Quality
Nitrogen Dioxide: 2.33 μg/m3
Sulphur Dioxide: 0.66 μg/m3
Ozone: 46.21 μg/m3
Astronomical
Sun Transit: 1:07 PM
Sunset: 10:08 PM
Daylight: 18 hrs 1 mins
Moon Transit: 5:58 AM
Moonset: 12:33 AM
Moon Phase: Last Quarter
Moon Illumination: 48.6%
Best Times for Fishing or Hunting
Major Periods
5:28 AM - 7:58 AM8:45 AM - 11:15 AM
Minor Periods
12:03 AM - 1:33 PM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 1.55 μg/m3
Sulphur Dioxide: 0.5 μg/m3
Ozone: 52.54 μg/m3
Astronomical
Sun Transit: 1:08 PM
Sunset: 10:07 PM
Daylight: 17 hrs 59 mins
Moon Transit: 12:00 AM
Moonset: 2:04 PM
Moon Phase: Last Quarter
Moon Illumination: 37.3%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM12:18 AM - 2:48 PM
Minor Periods
1:34 PM - 3:04 PM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 1.65 μg/m3
Sulphur Dioxide: 0.56 μg/m3
Ozone: 46.63 μg/m3
Astronomical
Sun Transit: 1:08 PM
Sunset: 10:06 PM
Daylight: 17 hrs 56 mins
Moon Transit: 7:30 AM
Moonset: 3:40 PM
Moon Phase: Last Quarter
Moon Illumination: 26.8%
Best Times for Fishing or Hunting
Major Periods
7:00 AM - 9:30 AM1:07 PM - 3:37 PM
Minor Periods
3:10 PM - 4:40 PM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 1.52 μg/m3
Sulphur Dioxide: 0.66 μg/m3
Ozone: 48.5 μg/m3
Astronomical
Sun Transit: 1:08 PM
Sunset: 10:05 PM
Daylight: 17 hrs 53 mins
Moon Transit: 8:23 AM
Moonset: 5:24 PM
Moon Phase: Last Quarter
Moon Illumination: 17.4%
Best Times for Fishing or Hunting
Major Periods
7:53 AM - 10:23 AM2:00 PM - 4:30 PM
Minor Periods
4:54 PM - 6:24 PM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 4.24 μg/m3
Sulphur Dioxide: 0.6 μg/m3
Ozone: 38.2 μg/m3
Astronomical
Sun Transit: 1:08 PM
Sunset: 10:03 PM
Daylight: 17 hrs 51 mins
Moon Transit: 9:20 AM
Moonset: 7:10 PM
Moon Phase: Waning Crescent
Moon Illumination: 9.7%
Best Times for Fishing or Hunting
Major Periods
8:50 AM - 11:20 AM3:00 PM - 5:30 PM
Minor Periods
6:40 PM - 8:10 PM12:00 AM - 12:00 AM
Action Rating: 2 out of 5