Where is Great East Lake?

Great East Lake is a lake in New Hampshire.

What is the water temperature at Great East Lake?

As of August 20, 2026, the water temperature at Great East Lake in New Hampshire is 60°F (15°C), measured by NOAA buoy SEIM1, 37 miles away.

How is Great East Lake rated?

Great East Lake in New Hampshire has an average visitor rating of 4.8 out of 5, based on 33 reviews.

Updated August 13, 2025

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Photo: Great East Lake by Ken Gallager at English Wikipedia (Public domain) License

Great East Lake

Lake

4.8(33 reviews)

Read reviews

Great conditions today

This lake bordering Maine & New Hampshire offers activities such as boating, fishing & water skiing.

Current water conditions

Water temp

60°F

15°C

Cold water — serious cold-shock risk today. At this temperature, sudden immersion can trigger involuntary gasping and sap a strong swimmer's strength within minutes. Enter slowly, never alone, and consider a wetsuit — or sit this one out.

Live data from NOAA buoy SEIM1 (37 mi away), as of Aug 20, 10:30 PM UTC. Conditions are for general information only and can change quickly — always judge the water in person and follow posted advisories before swimming.

Weather at Great East Lake

H: 83° L: 57°

Overcast

78°

Feels like 75°

Precipitation

17%

Humidity

41%

Wind

8 mph

UV Index

Water Conditions:

🏊Perfect for swimming

12 AM

64°

3 AM

62°

6 AM

57°

9 AM

70°

12 PM

81°

3 PM

82°

6 PM

79°

9 PM

73°

Pack smarter for Great East Lake

Useful gear categories for this kind of water spot. These links open Amazon search results so you can compare current options.

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Inflatable PaddleboardA popular way to explore calm coves and shorelines.

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Life JacketImportant around boats, paddling, and deeper swimming areas.

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Floating CoolerKeeps drinks nearby for swim areas, docks, and boats.

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Waterproof Phone PouchProtects phones around docks, boats, and splashy shorelines.

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Frequently asked questions

Where is Great East Lake?: Great East Lake is a lake in New Hampshire.
What is the water temperature at Great East Lake?: As of August 20, 2026, the water temperature at Great East Lake in New Hampshire is 60°F (15°C), measured by NOAA buoy SEIM1, 37 miles away.
Can you swim at Great East Lake?: There is no fixed answer for Great East Lake: whether it is safe to swim there on a given day depends on the water temperature, recent rainfall, and any advisories posted at Great East Lake in New Hampshire. Check current water conditions before you go, and follow posted signs and local guidance.
How is Great East Lake rated?: Great East Lake in New Hampshire has an average visitor rating of 4.8 out of 5, based on 33 reviews.

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Best Times to Visit

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Perfect conditions right now!

🏞️ Lakes Tips:

›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

Best Seasons:

☀️ Summer (Jun-Aug)🍂 Fall (Sep-Nov)🌸 Spring (Mar-May)

Location & Contact

New Hampshire

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