Block Island 5-Day Forecast Summary
Here's how the next 5 days are shaping up at Block Island, Rhode Island. Each day is rated based on breaking wave height, swell period, and wind — updated hourly from the latest NOAA GFS run.
Tue, Jun 30: 2–3ft, 9s period, rated Poor. Early morning is your best window — 2-3ft waves on S swell at 6s with glassy conditions. Wind fills in through the day, pushing up to 16mph from the SSW and dropping conditions to very poor.
Wed, Jul 1: 4–5ft, 6s period, rated Very Poor. Not the most exciting day — 3-4ft and very poor conditions with 22mph out of the SW.
Thu, Jul 2: 4–5ft, 7s period, rated Poor - Fair. The sweet spot is around midday — 4-5ft waves, moderate WSW wind around 11mph, poor - fair conditions. It's a bit wonky first thing but settles down.
Fri, Jul 3: 2–3ft, 6s period, rated Poor. Early morning is your best window — 2-3ft waves on SSW swell at 6s with 7mph WNW winds. Wind fills in through the day, pushing up to 13mph from the SW and dropping conditions to poor.
Sat, Jul 4: 2–2ft, 5s period, rated Poor. Early morning is your best window — 2ft waves on SSW swell at 5s with light W winds. Onshore flow builds through the day to 14mph, bringing conditions down to very poor.