Tide & Weather Conditions
Chatham Tides, Weather & Sea Conditions
Live tides, weather, offshore buoy data, and an interactive sea surface temperature map for Chatham and Nantucket Sound — everything you need before heading out.
Real-Time Local Conditions
We pull together everything you need before heading out. Live tide predictions for Chatham Harbor and Stage Harbor are paired with current wind and weather from the Chatham airport. Below that, real-time observations from the local Sofar Spotter buoy just off Chatham, plus NOAA buoys in Nantucket Sound (44020) and offshore SE of Nantucket (44008), give you wind, seas, and water temperature out where you are actually fishing or cruising. The interactive sea surface temperature map lets you scan the Gulf Stream edge, spot temperature breaks, and click anywhere on the water to read the SST at that point.
Outermost Harbor Marine is a full-service marina with direct access to Chatham Harbor, the Atlantic, and Nantucket Sound, so staying on top of local conditions matters every day.
Chatham Harbor Tides
Stage Harbor Tides
Chatham Weather
About Outermost Harbor Marine Conditions: We provide real-time maritime data for Chatham Harbor and Stage Harbor to help support safer navigation for slip holders, charter guests, and local boaters. This live dashboard tracks tide cycles at Aunt Lydia's Cove and local wind conditions from the Chatham Municipal Airport (KCQI) to provide a quick local reference before heading out.
Disclaimer: Tide data is based on NOAA predictions for Station 8447435 and 8447505.
Real-Time Buoy Conditions
Live observations from the local Chatham Spotter buoy and NOAA NDBC stations offshore. Updates hourly.
Chatham
Nantucket Sound
Offshore SE of Nantucket
Sea Surface Temperature
Pan, zoom, and click anywhere on the water to read SST. Pick a temperature scale that suits the season for sharper color contrast in local waters.
Need Help Planning Your Day on the Water?
From slips and service to fishing charters and local guidance, Outermost Harbor Marine is here to help you make the most of your time in Chatham.