Cape Cod & Georges Bank water temperature today
Across 7 reporting buoys, the water ranges from 58°F at BOSTON 16 NM East of Boston, MA to 65°F at NANTUCKET 54 NM Southeast of Nantucket.
Latest readings from the 7 NOAA buoys off Cape Cod & Georges Bank: water temperature, wind and waves. Sorted with the long-running offshore buoys first.
| Buoy | Water | Wind | Waves | Reading |
|---|---|---|---|---|
| NANTUCKET 54 NM Southeast of NantucketNDBC 44008 · 40.50°N 69.25°W | 65°F 18°C | NNE 23 kt | – | Oct 17, 15:40 UTC |
| GEORGES BANK 170 NM East of Hyannis, MANDBC 44011 · 41.09°N 66.55°W | 58°F 15°C | N 21 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 |
| Nantucket SoundNDBC 44020 · 41.50°N 70.28°W | 61°F 16°C | N 21 kt | – | Oct 17, 15:40 UTC |
| Buzzards Bay, MANDBC 44085 · 41.39°N 71.03°W | 62°F 16°C | – | 3 ft @ 7s | Oct 17, 15:30 UTC |
| Cape Cod Bay, MANDBC 44090 · 41.84°N 70.33°W | 59°F 15°C | – | 6 ft @ 6s | Oct 17, 15:30 UTC |
| Block Island, RINDBC 44097 · 40.97°N 71.12°W | 61°F 16°C | – | 6 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 Cape Cod & Georges Bank.
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 Cape Cod & Georges Bank.
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