Gulf of Alaska halibut season strides into May as kings build

What's biting

What's next

With Gulf of Alaska water temperatures sitting at 41–43°F and winds ranging from 5 m/s at buoy 46066 to 9 m/s at buoys 46001 and 46080, the next two to three days hinge on whether conditions moderate. The lighter winds near buoy 46066 suggest some pockets of the Gulf may offer more fishable windows between weather systems — check NOAA marine zone forecasts for your specific area before trailering.

Halibut should remain the steadiest producer over the coming week. May is historically the transition from early- to mid-season patterns in the Gulf, when fish become more predictable on known humps and structure. Running herring or salmon bellies on circle hooks at 100–300 feet is the standard approach. As daylight extends and water temperatures inch toward 44–46°F — which typically occurs through late May — bite windows tend to consolidate around lower tide phases rather than scattering throughout the day.

King salmon timing is the bigger variable in this window. Mid-May historically marks the period when early spring Chinook begin stacking near coastal river mouths and bait schools across the northern and western Gulf. Trolling cut herring or flasher-spoon combos from the surface down to 60 feet is the typical play. The current waning crescent moon phase can subtly reduce surface bait activity at night, which often compresses productive action into earlier morning windows for kings.

Rockfish and lingcod are available as reliable secondary targets year-round and can pick up the slack when weather pushes fleets inside. Both species concentrate on rocky reef structure and respond well to jigs and cut bait dropped to depth.

Weekend anglers should plan around the marine weather closely. The 9 m/s winds recorded at buoys 46001 and 46080 — roughly 17–18 knots — are manageable for larger vessels but can make smaller boat runs uncomfortable. Wave height data is not available in the current buoy feeds, so always obtain the NOAA marine zone forecast for your specific zone before heading out.

Context

May in the Gulf of Alaska is a transitional inflection point. Winter's grip loosens, daylight accumulates rapidly, and the major sportfisheries begin building toward their summer peaks. Water temperatures in the 41–43°F range, as the current buoys reflect, are typical for this time of year; surface temps in the Gulf generally hover between 40 and 48°F through mid-spring before warming toward the low 50s by July.

The halibut fishery is fully operational by May across much of the Gulf coast. May is considered solid mid-season territory from Homer to Kodiak to Seward, and historically sees consistent charter pressure as visiting anglers arrive ahead of peak summer crowds. Catch rates on known structure are generally favorable at this time of year, making mid-May a reliable window for both guided sport and independent offshore trips.

King salmon timing is more variable. Some coastal systems see their first spring Chinook in April; others don't peak until late May or June. The absence of specific charter or agency sportfishing reports in this cycle's feeds makes it difficult to place the 2026 spring run relative to historical averages. AK Sea Grant's current reporting is oriented toward mariculture development and community fisheries programs — useful context for Alaska's broader fisheries picture, but not a direct read on this season's sport conditions.

What holds consistently across years: the Gulf's biggest wildcard in May isn't fish availability — the target species are present — it's the weather. The Gulf of Alaska is notorious for rapid condition changes, and May can deliver both flat-calm mornings and short-notice gales. Anglers who plan for flexibility and keep an inside-water backup option on the table consistently outperform those who commit to offshore runs without a contingency.