CatchWindow fishing intelligence

Callao, Peru Daily Water Report — October 5, 2026

Callao is workable rather than easy-going today: decent for boating and diving, fair for fishing and sailing, but the long-period southwest swell keeps paddlers honest. The overall scores sit in the middle of the pack—boating and diving at 6.4/10, fishing 6.3, sailing 6.2 and kayaking 5.8—so this is a day for capable crews making conservative calls, not a blanket green light. The water’s main feature is 1.8 m of wave height, driven largely by a 1.74 m swell from 207 degrees at 11 seconds. That is enough organized energy to matter around harbor entrances, exposed edges and any route that leaves protected water. Wind waves are small at 0.32 m, and the representative southeast wind is a manageable 6 knots, but gusts may reach 24 knots around noon. The calmer wave reading is near midnight, at 1.54 m; daylight users should expect the larger daytime range of roughly 1.5 to 1.8 m. Early morning offers the cleanest practical window before the noon gust potential, with dawn at 05:30 and sunrise at 05:51. Fishing has its strongest supplied solunar window from 07:01 to 09:01, while the stable 1013 hPa pressure and no rain indicated remove a couple of common complications. That does not guarantee bites, of course, but it supports the day’s respectable fishing score. The 19:01 to 21:01 major period arrives after sunset at 18:05, so it is relevant only for crews prepared for low-light operations. For divers, the 23.8 C marine temperature is inviting, but surface wave energy—not atmospheric visibility of 22.9 km—should set expectations for water access and conditions. Kayakers face the clearest tradeoff: light average wind, but substantial swell and a modest north-northwest-setting current of about 0.17 m/s. Stay within your operational limits and treat the score as a planning aid, not a safety clearance. Compared with the recent run, boating is softer than October 3 and 2, while diving has slipped from yesterday’s 7.8. Winds remain generally light through the week, but seas build to 1.8–2.0 m Tuesday before gradually easing toward 1.5–1.6 m by Friday. Best bet: launch early, use the 07:01–09:01 fishing window, and be back inside before the noon gusts turn a reasonable harbor day into extra paperwork.