CatchWindow fishing intelligence

Nantucket Island, MA Daily Water Report — August 30, 2026

Today’s a solid day for getting out on the water around Nantucket Island, with diving taking the top spot at an impressive 8.7/10. Visibility is excellent, and the water temperature is a comfortable 21.1°C, making it an ideal day to explore beneath the waves. For boaters, a score of 7.8/10 suggests smooth sailing, thanks to moderate winds peaking at 12 knots and waves remaining manageable under a meter. Fishing enthusiasts will find a decent window, holding steady at 7.3/10. The solunar major periods, particularly between 1:09 PM and 3:09 PM, could enhance your chances, though the waning gibbous moon might keep fish a bit elusive. Surfing, with a score of 5.9/10, isn't at its peak today; waves are modest at best, with a swell of 0.36m from the south. The kayaking score of 6/10 reflects a fair day on the water, though wind gusts up to 23.5 knots later tonight could make the return trip a bit spicy. Wildlife watchers should enjoy a promising day with a score of 7.6/10, especially near low tide at 8:39 AM and 8:39 PM, when activity might spike. Compared to recent days, diving has consistently been a highlight, but today’s boating conditions have notably improved from yesterday’s 6.1/10. The air is crisp, with temperatures ranging from 16.7°C in the early morning to a comfortable 25.3°C by afternoon. Barometric pressure is on a slight decline, which might influence tomorrow’s conditions. Looking ahead, expect slightly cooler temperatures and a chance of rain mid-week, with winds picking up significantly by September 2nd. If you’re planning to dive, today is your best bet—grab that gear and dive in while the conditions are prime.