CatchWindow fishing intelligence

Kahului, Kahului Harbor, HI Daily Water Report — September 3, 2026

Today is a stellar day to hit the waves and explore below the surface in Kahului Harbor. Surfing scores an impressive 8.8/10, thanks to a consistent swell of 0.78 meters and a wave height peaking around 1.2 meters. The easterly winds are whipping up to 20.4 knots, which might add a bit of spice to your ride, but the swell direction from the south should keep things exciting for surfers. For divers, the conditions are nearly perfect with a score of 9/10. The water temperature is a comfortable 26.5°C, and visibility is typically clear in these oligotrophic waters. The wind and waves are manageable, making this an excellent day to explore underwater. Boaters and kayakers might find the conditions a bit challenging today. With a boating score of 6/10 and kayaking at 5.8/10, the gusty winds peaking at nearly 39 knots in the afternoon could make for some choppy waters. If you're planning to head out, aim for the calmest period around 1 PM when waves dip to about 0.92 meters. Fishing enthusiasts might find today a bit of a mixed bag with a 6.5/10 score. The solunar periods suggest the best times to cast your line are early morning or late afternoon, but the gusty winds could make it tricky to keep your bait where you want it. Looking ahead, expect increasing wave heights over the next few days, particularly on September 7, when waves could reach up to 2.5 meters. Winds are set to decrease slightly, which might improve conditions for boating and kayaking later in the week. In summary, take advantage of today’s excellent diving and surfing conditions, but keep an eye on the wind if you’re on a boat or kayak. If you’re looking for a standout experience, diving is your best bet today with calm, clear waters and minimal wind interference.