CatchWindow fishing intelligence

Busan, South Korea Daily Water Report — October 7, 2026

Busan Harbor is a clear go for small-boat and paddle plans, with unusually gentle water doing most of the work. Boating leads the board at 9.2/10 and kayaking follows at 8.6/10; those are strong convenience scores, not a substitute for vessel checks, traffic awareness, or local harbor rules. The best all-round window is late morning through early afternoon. Waves hold at just 0.2–0.3 m, with the day’s calmest representative point near 11:00 at 0.22 m. A light NNW wind, generally 1.5–4.5 knots, keeps the harbor from getting worked up, though gusts may reach 15.2 knots around 10:00. That brief gustier patch is the main reason not to mistake “calm” for perfectly still—paddlers and light craft should allow for a little extra handling demand around mid-morning. For anglers, the 08:27–10:27 solunar major period is the day’s most useful timing cue, with another major period from 20:27–22:27 after sunset. Fishing scores 6.2/10, improved from the two preceding reconstructed daily scores of 5.8, while the rising 1021 hPa pressure and light wind make for a comfortable session. No tide data are available, so there is no tide-based timing call to add. Wildlife also rates a middling 6.3/10; the same solunar windows may be worth watching, but the score is not a promise of sightings. Divers get a respectable 7.6/10 with 23.8 C marine water and low wave energy, although that is below the 8.4 recorded on each of the previous two days. Atmospheric visibility is excellent near 38.8 km under clear skies, but it says nothing definite about underwater visibility. Sailing is workable at 6.1/10, though the very light wind offers more drifting than drive. Expect a cool start near 13 C, a sunny high around 23 C, no indicated rain, and a waning crescent moon. Thursday and Friday remain quiet-water prospects, with 0.3–0.4 m waves and light winds; rain chances become more notable from Saturday onward. Best bet: launch after the mid-morning gust bump, when the harbor is running small, sunny, and almost suspiciously civilized.