Memorial Day charter push kicks off Gulf of Alaska's best fishing window
Water temps of 43-45°F logged across the Gulf of Alaska by NOAA buoys 46001, 46066, and 46080 on May 31 mark a seasonally on-target reading that aligns with the late-May charter surge out of Seward. Saltwater Sportsman covered the region's signature kickoff event: more than 160 junior enlisted military members from across Alaska just boarded volunteer charter boats in Seward for the annual ASYMCA Combat Fishing Tournament, held each year the Wednesday before Memorial Day, with crews loading coolers, rigging rods, and stacking bait well before dawn. That level of charter activity signals captains are confident conditions are fishable. Swells are running 3 to nearly 5 feet across the outer Gulf with sustained winds of 6-8 m/s, manageable for offshore-rigged vessels. A Full Moon is generating stronger tidal exchanges, prime for halibut positioning on current breaks, and late May is traditionally when king salmon begin entering Gulf nearshore waters.
Current Conditions
- Water temp
- 45°F
- Moon
- Full Moon
- Tide / flow
- Full Moon driving elevated tidal exchanges through the weekend; outer Gulf wave heights 3-4.9 ft.
- Weather
- Winds at 6-8 m/s with swells to 5 feet; air temps hovering in the mid-40s Fahrenheit offshore.
New to these readings? What do water temp, cfs, tide, and moon phase actually mean for fishing?
What's Biting
Pacific Halibut
bottom bouncing bait on tide transitions over soft-to-mixed structure
King Salmon (Chinook)
mooching herring near inlet mouths as early runs stage
Black Rockfish
jigging swimbaits on shallower reef structure
Lingcod
heavy jigs worked along rocky bottom drop-offs
What's Next
Heading into the June 1 weekend, anglers should pull updated swell data before committing to a departure time. Buoys 46001 and 46080 are currently logging 3 to 3.3-foot seas, workable for most charter boats operating out of Seward. Buoy 46066 is reading closer to 5-foot wave heights, indicating rougher conditions on the outer Gulf. Confirm conditions with your captain or check updated forecasts before booking a dawn run to the outside.
The Full Moon peaked overnight, meaning tidal exchanges will remain elevated through the weekend before beginning to ease into a waning gibbous cycle. For halibut, this is a productive window: larger tidal swings push bait through current seams and position fish predictably on structural breaks and drop-offs. Plan effort around tide transitions, top and bottom, when current shifts and halibut tend to stack on feeding edges. Depths of 150-250 feet over soft-to-mixed bottom are the classic Gulf approach at this stage of the season.
King salmon timing is worth watching closely over the next 7-10 days. Late May and early June historically mark the beginning of meaningful chinook returns to Gulf of Alaska systems. With water temps holding in the 43-45°F range, the zone where kings are comfortable and feeding actively, nearshore trolling or mooching herring near inlet mouths could produce as fish stage before their river push. Locating bait concentrations is the key: kings follow herring and sand lance closely at this stage of the season.
Rockfish and lingcod offer a reliable backup option throughout this stretch. Black rockfish respond well to jigs and swimbaits on shallower reef structure, while lingcod stage on the same rocky bottom ahead of their summer peak. Neither species demands the settled conditions that halibut trips require, making them the practical call when a weather window narrows.
If swell settles toward the lower end of the current range, closer to what buoys 46001 and 46080 are logging, the weekend could shape up well for a full offshore charter day. Early departures remain the smart call: Gulf of Alaska afternoons frequently build wind regardless of what the morning forecast shows.
Context
Late May in the Gulf of Alaska sits squarely at the opening of the prime fishing window, and the current conditions are consistent with what the region typically delivers at this time of year. Water temperatures in the 43-45°F range, as recorded by NOAA buoys 46001, 46066, and 46080, fall within the expected late-May band for the north Gulf. Outside-bay and offshore waters here warm more slowly than Southcentral Alaska's more sheltered inside passages, but 43-45°F is well within the productive range for the region's core bottomfish and early-run salmon.
Halibut season on the Gulf typically opens in mid-March and runs through mid-November under federal management, but late May through August is the heart of the charter window: day lengths are generous, weather has moderated from spring, and fish are distributed widely across near-shore and offshore flats. AK Sea Grant has highlighted Alaska's expanding mariculture sector, including growing kelp and oyster farming in Gulf-adjacent waters, reflecting the region's broader marine productivity. Sportfishing, however, remains the dominant draw out of ports like Seward and Homer, and the Memorial Day weekend is the traditional starting gun for the summer charter season.
The ASYMCA Combat Fishing Tournament in Seward, covered this week by Saltwater Sportsman, reinforces that pattern. Captains who participate in that event are veterans of Gulf conditions and do not launch lightly. More than 160 anglers hitting the water from Seward around Memorial Day is a meaningful on-the-ground signal that the fleet considers conditions ready and the fishing worthwhile.
No specific catch-rate comparisons to prior seasons appear in the current intel feeds, so characterizing this year as running early or late relative to the historical average would be speculative. What the available data does support: water temps are on schedule, the charter fleet is active out of Seward, and the seasonal alignment of Full Moon tidal exchanges with late-May run timing creates a legitimate opportunity for anglers who can get on the water this weekend.
This report is synthesized by Hooked Fisherman from real-time NOAA buoy data, USGS stream gauges, and current reports across regional fishing blogs, captain updates, and angler forums. Source names are cited inline where they appear. Check local regulations before keeping fish. Never trust a single source for a trip decision.