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Sunapee Harbor — Boating Conditions
Tides, water temp & weather • Sullivan County, NH
Boating Conditions at Sunapee Harbor
Current wind, air and water temperature, tide times and a 10-day forecast for Sunapee Harbor on Sunapee Lake in Sullivan County, New Hampshire. Check conditions before you launch.
Right Now
Clear
Calm — good conditions to get on the water
Air Temp
57°F
Wind
5 mph
gusts 9 mph
Next Few Hours
Now
☀️
57°
6 mph
10PM
☀️
57°
1%
5 mph
11PM
☀️
55°
1%
5 mph
12AM
☀️
54°
1%
6 mph
1AM
⛅
54°
1%
5 mph
2AM
☀️
53°
1%
4 mph
10-Day Boating Forecast
Tue, 9/15
🌫️
67° / 39°
Wind 6 mph
1% rain
Wed, 9/16
⛅
77° / 53°
Wind 6, gusts 14 mph
3% rain
Thu, 9/17
🌧️
67° / 60°
Wind 7, gusts 15 mph
63% rain
Fri, 9/18
⛅
68° / 50°
Wind 15, gusts 28 mph
38% rain
Sat, 9/19
⛅
63° / 37°
Wind 8, gusts 24 mph
7% rain
Sun, 9/20
🌧️
50° / 43°
Wind 4, gusts 8 mph
45% rain
Mon, 9/21
⛅
66° / 43°
Wind 6, gusts 9 mph
37% rain
Tue, 9/22
⛅
67° / 44°
Wind 6 mph
37% rain
Wed, 9/23
🌧️
50° / 42°
Wind 4, gusts 13 mph
18% rain
Thu, 9/24
🌧️
62° / 48°
Wind 11, gusts 28 mph
15% rain
Weather & wave data from Open-Meteo. Tides & water temperature from NOAA CO-OPS. Conditions are estimates for trip planning — always confirm locally and check official marine forecasts before heading out.
