Gulf of Maine water temperature today
Across 9 reporting buoys, the water ranges from 53°F at Jonesport, ME to 59°F at Cape Cod Bay, MA.
Latest readings from the 9 NOAA buoys off Gulf of Maine: water temperature, wind and waves. Sorted with the long-running offshore buoys first.
| Buoy | Water | Wind | Waves | Reading |
|---|---|---|---|---|
| PortlandNDBC 44007 · 43.52°N 70.14°W | 55°F 13°C | NW 18 kt | – | Oct 17, 15:40 UTC |
| BOSTON 16 NM East of Boston, MANDBC 44013 · 42.35°N 70.65°W | 58°F 14°C | NNW 18 kt | – | Oct 17, 15:40 UTC |
| Jonesport, MENDBC 44027 · 44.28°N 67.30°W | 53°F 12°C | WNW 16 kt | – | Oct 17, 15:40 UTC |
| Buoy A01NDBC 44029 · 42.52°N 70.57°W | 57°F 14°C | – | – | Oct 17, 15:30 UTC |
| Buoy I01NDBC 44034 · 44.10°N 68.11°W | 54°F 12°C | – | – | Oct 17, 15:30 UTC |
| Buoy M01NDBC 44037 · 43.50°N 67.88°W | 55°F 13°C | – | – | Oct 17, 15:00 UTC |
| Great Bay BuoyNDBC 44074 · 43.07°N 70.87°W | 58°F 14°C | NW 8 kt | – | Oct 12, 21:56 UTC |
| Cape Cod Bay, MANDBC 44090 · 41.84°N 70.33°W | 59°F 15°C | – | 6 ft @ 6s | Oct 17, 15:30 UTC |
| Jeffrey's Ledge, NHNDBC 44098 · 42.80°N 70.17°W | 54°F 12°C | – | 4 ft @ 5s | Oct 17, 16:00 UTC |
See where the warm and cold water actually sits between these buoys, and where the temperature breaks and color changes are, on the satellite chart for Gulf of Maine.
FAQ
Where does this water temperature come from?
From NOAA's National Data Buoy Center (NDBC). Each buoy measures the water temperature near the surface, usually about a meter down, and reports roughly every hour. We pull the latest reading for every buoy off Gulf of Maine.
How often does this page update?
Every time you load it. Readings come straight from NOAA and are at most about 30 minutes behind what NOAA has published.
Why is the buoy temperature different from the satellite chart?
A buoy measures one spot a meter or so below the surface. A satellite measures the skin of the water over a wide area. On calm, sunny afternoons the skin can read warmer than the water below it. More in our guide to ground-truthing SST with buoys.
Related: How to use buoy data to ground-truth satellite SST · Ideal water temperatures for pelagic fish