Water Temperature, Town by Town

Sea-surface temperature for each town below, read at that town’s own coordinates rather than at a buoy forty miles offshore — which on this coast can be several degrees different from the water you actually swim in. Each page carries today’s reading, the last two weeks, and the average for every month of the year.

The figure beside each town is the September average, not today’s reading — open a town for the live number.

Monthly averages are computed from 3 years of daily sea-surface temperature (2023–2025) — a recent average, not a 30-year climate normal. Salty Forecast is free, with no ads and no account.