CatchWindow fishing intelligence

Busan, South Korea Daily Water Report — October 6, 2026

Busan Harbor gets a clear green light for small-boat and paddle plans today, with a caveat: it is a fine day for getting on the water, not much of a day for making a sailboat earn its keep. Boating leads the board at 9.1/10, while kayaking rates 8.2 and diving 8.4. The marine setup is notably gentle: waves are running 0.2–0.4 m, with a representative 0.24 m at 4.6 seconds, and the calmest point is forecast near 15:00 at 0.22 m. The best all-round window looks like late morning through mid-afternoon. Northwest wind is generally light, ranging from 2.5 to 8 knots, with a representative 5 knots, and no rain is indicated. Clear skies, roughly 38 km of atmospheric visibility, and air temperatures climbing toward 21.7 C should make for comfortable harbor time. That visibility figure is for the air, not a promise of underwater clarity, but the light wind, low waves, 24 C water and diving score point to favorable surface conditions for divers. Early departures should remember that the strongest gust of the day, 20.4 knots, was forecast around 03:00. Gusts remain a reason to keep loose gear secured and to treat exposed harbor entrances with more respect than the flat-looking forecast might suggest. The current is modest at about 0.14 m/s toward the northwest, but it still matters for paddlers and anyone lingering near traffic or structure. No tide data are available, so timing around tidal flow cannot be assessed. Fishing is a middling 5.8/10, unchanged from yesterday, despite a rising barometer near 1014 hPa. The more promising solunar major period is 07:45–09:45, with a second evening window from 19:45–21:45 after sunset. Wildlife scores 6.3/10; the same timing may be worth a look, though no tide-based interpretation is available. Compared with the recent CatchWindow record, boating improves slightly from yesterday’s 8.9, kayaking climbs from 7.8, and diving holds at 8.4. Water remains warm at 24 C, about 1.5 C above average. The next few days stay quiet, especially Wednesday with 0.2–0.3 m waves and light winds; rain chances become more relevant from Friday onward. Best bet: launch late morning, enjoy the glassy harbor, and be back with plenty of daylight to spare.