Central Coast Salmon Heat Up as Spring Upwelling Takes Hold

What's Biting

What's Next

The 10 m/s winds logged at NOAA buoy 46042 and seas running 7.9 ft at two separate stations set the near-term tone: this is a swell-management week. Private-boat anglers should watch for any 2–3 day calm window between pulse trains — those are the slots when salmon trolling south of Pigeon Point becomes both safe and productive.

The 7-degree thermal spread between buoy 46042 (52°F) and buoy 46028 (59°F) is the key structural feature to track over the next few days. Baitfish — anchovies and sardines primarily — tend to stack along temperature breaks like this, and salmon follow. As the upwelling cycle continues through late May, keep an eye on how this gradient shifts and where it repositions the most productive salmon corridor relative to your departure port.

The waxing crescent moon this week produces moderate tidal exchange — not the extreme swings of full or new moon phases, but enough current to move bait schools along nearshore structure. Plan early-morning departures before afternoon sea breezes reinforce swell and chop. The window before 10 a.m. is typically when salmon hold shallowest and feed most aggressively along this stretch of Central Coast.

For anglers unwilling to battle open-water swell, nearshore rockfish and lingcod remain a reliable option whenever structure is accessible in 4–6-ft conditions. Mixed-bottom zones in 80–200 feet can be worked safely on days when the offshore grounds are too rough, and this time of year the shelf population is generally healthy and concentrated.

California halibut should also become more viable as nearshore temperatures tick higher in the coming weeks. The 52°F reading at buoy 46042 sits at the cool edge of optimal halibut range; watch for warmer nearshore pockets as upwelling variability introduces short thermal spikes. When those windows open, sandy-bottom shallows and estuarine approaches are worth exploring with drift presentations.

Pacific bonita remain absent as of this report — per Captain Davis via Western Outdoor News — Saltwater, the cooler temps pushed the school out. They may reappear during brief warm-water pulses, but salmon and rockfish should be the planning priority through at least the end of May.

Context

The 2026 season opened against a backdrop of strikingly anomalous conditions. Western Outdoor News — Saltwater flagged in April that California's coast had been running dramatically above normal — with some locations logging temperatures in the very high 60s°F — a departure the publication compared to the 1983 El Niño, which itself peaked at roughly 7°F above average. April is typically the coldest water month of the year on the Central Coast; running 10-plus degrees above normal signaled a potentially disrupted salmon and pelagic season from the outset.

The current 52–54°F readings represent a meaningful correction toward the historical norm. Mid-May water temperatures in the Central Coast zone typically run in the low-to-mid 50s°F, so today's buoy readings land right in that historical window — suggesting the fishery is tracking back toward a near-normal late-May trajectory after the early warm anomaly.

Captain Davis's 'vastly improved' salmon assessment, reported by Western Outdoor News — Saltwater, is consistent with what typically happens when upwelling corrects an anomalously warm start: bait schools return to historical aggregation zones, the food web reactivates, and salmon move back into productive positions. The bonita departure he noted is the flip side of that equation — warm-water visitors displaced by cooling, creating space for the salmon that define this fishery in a typical late-May pattern.

No state agency or charter-level data from other Central Coast ports appeared in current feeds, so this report draws primarily from the Half Moon Bay and Pigeon Point corridor. Conditions at ports farther south may differ given the warmer 59°F readings at buoy 46028, where the thermal gradient and bait distribution follow their own dynamics.