Updated

Lake Eileen
Lake · Gilmanton, New Hampshire
Cool water — ease in carefully
Use cautionCool water — ease in carefully: water temperature is 64°F, cool enough to cause cold-water shock on a sudden entry.
- Water temperature is 64°F, cool enough to cause cold-water shock on a sudden entry.
Things to Do Near Lake Eileen
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Cool water — ease in carefully
Use cautionCool water — ease in carefully: water temperature is 64°F, cool enough to cause cold-water shock on a sudden entry.
- Water temperature is 64°F, cool enough to cause cold-water shock on a sudden entry. — NOAA buoy SEIM1, as of Aug 22, 3:18 AM UTC
No official beach-advisory feed for New Hampshire yet — follow posted signs and local guidance.
Live data from NOAA buoy SEIM1 (40.3 mi away), as of Aug 22, 3:18 AM UTC.
Weather at Lake Eileen









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Frequently asked questions
- Where is Lake Eileen?
- Lake Eileen is a lake in Gilmanton, New Hampshire.
- What is the water temperature at Lake Eileen?
- As of August 22, 2026, the water temperature at Lake Eileen in Gilmanton, New Hampshire is 64°F (18°C), measured by NOAA buoy SEIM1, 40.3 miles away.
- Can you swim at Lake Eileen?
- Cool water — ease in carefully: water temperature is 64°F, cool enough to cause cold-water shock on a sudden entry. Checked August 22, 2026.
- How is Lake Eileen rated?
- Lake Eileen in Gilmanton, New Hampshire has an average visitor rating of 4.7 out of 5, based on 7 reviews.
- What amenities does Lake Eileen have?
- Visitor-listed amenities at Lake Eileen include camping-nearby.
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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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