Gulf of Alaska at 40–42°F: Halibut Season Underway as Spring Winds Hold Steady

What's Biting

What's Next

Water temperatures in the 40–42°F range are in line with where the Gulf of Alaska historically sits in early May. Absent a strong low-pressure system, no dramatic surface temperature shifts are expected over the next 48–72 hours — though the Gulf is capable of building seas quickly with any offshore weather development. Wind readings of 6–8 m/s are manageable for most offshore-capable vessels, but check NOAA marine zone forecasts before committing to runs into deeper water. No wave height data was available from the three reporting buoys this morning.

Pacific halibut remain the most reliable target through the weekend. At 40–42°F, these cold-water–adapted fish won't be pushed off structure by temperature; focus efforts on drop-offs, ridges, and reef edges in the 150–300-foot range. Slow presentations — cut herring or whole squid worked on circle hooks near the bottom — are the standard approach for this time of year. Bite windows around tide changes, particularly the first major incoming or outgoing after dawn, have historically produced the most consistent action during a waning gibbous phase.

King salmon (Chinook) are worth dedicating time to as the month progresses. Early May typically finds kings staging in deeper offshore water before their main push toward river drainages; trolling herring or flasher-and-hoochie setups in 80–200 feet along coastal contours should yield increasing encounters through mid-month. Lengthening daylight and the current moon phase favor early-morning launches — plan to have bait in the water at first light over the next several days to capitalize on cooler, calmer pre-dawn conditions before afternoon winds build.

Lingcod and rockfish round out the week as reliable backup targets when offshore conditions are marginal. Both species are year-round Gulf residents and respond well to vertical jigs and cut bait worked along rocky structure in 100–250 feet. As bait schools — particularly herring — push into nearshore bays, watch for signs of surface predator activity, which often signals halibut and king salmon moving into shallower reach as well.

Context

Early May in the Gulf of Alaska sits at the shoulder between the tail end of winter storm season and the onset of the productive summer fishery. Surface temperatures in the 40–42°F range — precisely what NOAA buoys 46001, 46066, and 46080 are recording today — are consistent with historical norms for this period. Gulf surface temperatures typically climb into the mid-to-upper 40s°F by late May and approach the low 50s°F by midsummer, so current readings suggest the season is tracking on a normal schedule with no significant warm or cold anomaly apparent from the buoy network.

No angler-intel feeds in this report's data payload provided Gulf of Alaska–specific reports, so no direct year-over-year comparison is available from attributed testimony this cycle. Based on seasonal patterns alone: May is historically among the most productive months for Pacific halibut in the Gulf, with fish active and accessible before peak-season boat traffic intensifies through June and July. King salmon timing varies by drainage and year class, but the broad Gulf Chinook return typically peaks late May through June, meaning the current period is the early shoulder of that run — encounters should increase noticeably week over week.

For rockfish and lingcod, May represents a comfortable mid-season window — these species are available year-round, and improving weather conditions and lengthening days simply make them more accessible to a wider range of anglers. Anyone holding current saltwater licenses should verify applicable state and federal season regulations before harvest, particularly for halibut, where individual quota rules apply.