Updated
Crystal Lake
Lake · Gilmanton, New Hampshire
Cool water — ease in carefully
Use cautionCool water — ease in carefully: water temperature is 65°F, cool enough to cause cold-water shock on a sudden entry.
- Water temperature is 65°F, cool enough to cause cold-water shock on a sudden entry.
Things to Do Near Crystal Lake
Top-rated tours and experiences around Gilmanton, powered by Viator — free cancellation on most.
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Cool water — ease in carefully
Use cautionCool water — ease in carefully: water temperature is 65°F, cool enough to cause cold-water shock on a sudden entry.
- Water temperature is 65°F, cool enough to cause cold-water shock on a sudden entry. — NOAA buoy SEIM1, as of Aug 22, 4:48 AM UTC
No official beach-advisory feed for New Hampshire yet — follow posted signs and local guidance.
Live data from NOAA buoy SEIM1 (38.1 mi away), as of Aug 22, 4:48 AM UTC.
Weather at Crystal Lake
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Frequently asked questions
- Where is Crystal Lake?
- Crystal Lake is a lake in Gilmanton, New Hampshire.
- What is the water temperature at Crystal Lake?
- As of August 22, 2026, the water temperature at Crystal Lake in Gilmanton, New Hampshire is 65°F (18°C), measured by NOAA buoy SEIM1, 38.1 miles away.
- Can you swim at Crystal Lake?
- Cool water — ease in carefully: water temperature is 65°F, cool enough to cause cold-water shock on a sudden entry. Checked August 22, 2026.
- How is Crystal Lake rated?
- Crystal Lake in Gilmanton, New Hampshire has an average visitor rating of 4.8 out of 5, based on 12 reviews.
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- ›Check for boat launch facilities and fees
- ›Obtain required fishing licenses before arrival
- ›Be aware of lake-specific regulations and restrictions
- ›Monitor water quality reports before swimming
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