CatchWindow fishing intelligence

Hilo, Hilo Bay, Kuhio Bay, HI Daily Water Report — August 30, 2026

Today in Hilo Bay, the water conditions favor anglers and surfers, with fishing scoring a solid 7.7 and surfing a close 7.5 out of 10. The best window for fishing aligns with the solunar major period just after lunch, while surfers will enjoy the consistent swell from 61 degrees, peaking around mid-morning when the winds are gentle. The wave height remains steady between 1.5 and 1.7 meters, providing a decent ride for those seeking to catch some waves. Boaters and kayakers should take note of the moderate scores, 7.1 and 6.3 respectively. While the wind is manageable, gusts could reach up to 18.5 knots around 1 PM, making late afternoon and early evening the better times to be on the water when things calm down. The calmest wave conditions are expected near 10 PM, though that's too late for most activities. Divers might find today a bit less ideal compared to recent days, with a score of 6.5. The wave action could stir things up a bit, affecting visibility underwater. However, the sea surface temperature at 27.4°C remains inviting. Wildlife enthusiasts can expect a moderate day with a score of 6.9, as the solunar minor periods might offer some interesting sightings around dawn and dusk. Comparing today to recent history, diving conditions have dipped from a high of 8.3 just a few days ago, largely due to the increased wave activity. Meanwhile, surfing remains consistent with previous days, holding steady at 7.5, thanks to the reliable swell. Looking ahead, the next few days promise a mix of conditions with increasing wave heights peaking at 2.4 meters by September 3rd. Rain chances remain high, so keep an eye on the skies. If you’re planning a session today, your best bet is to hit the surf mid-morning when the waves are lively and the winds are still catching their breath.