What is the average water temperature in Maine?

The current average water temperature across Maine's monitored water bodies is 62.8°F.

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Maine Water Temperatures

Q: What is the warmest lake in Maine today?

Narraguagus River At Cherryfield, Maine at 75.4°F.

Current lake & river temperatures in Maine — updated daily from USGS sensors.

With Data

62.8°F

State Avg

75.4°F

Warmest

75.4°F

Warmest

Narraguagus River At Cherryfield, Maine

62.8°F

State Average

73 water bodies

55.4°F

Coldest

Meduxnekeag R Above S Br Medux. R Nr Houlton, Me

🏊

Swimming Conditions

🚫 Too cold for most swimmers

Based on avg 62.8°F

🎣

Fishing Conditions

🎣 Good — trout, walleye, bass

Based on avg 62.8°F

Maine — Ranked by Temperature

15 with data

#	Water Body	°F	°C	Condition	🏊	Date
1	Narraguagus River At Cherryfield, Maine River	75.4°	24.1°	☀️ Warm	✅ Good	Jul 29
2	Meduxnekeag River At Lowery Rd. Nr Houlton, Maine River	66.7°	19.3°	🌤️ Comfortable	⚠️ Brisk	Jun 5
3	St. Croix River At Milltown, Maine River	66.7°	19.3°	🌤️ Comfortable	⚠️ Brisk	Jun 5
4	Allagash River Near Allagash, Maine River	66.4°	19.1°	🌤️ Comfortable	⚠️ Brisk	Jun 5
5	Lewy Lake At Princeton, Maine Lake	64.6°	18.1°	🌊 Cool	🚫 Cold	Jun 5
6	Penobscot River At Eddington, Maine River	63.9°	17.7°	🌊 Cool	🚫 Cold	Sep 29
7	E. Br. Penobscot River Below Grand Lake Matagamon River	63.5°	17.5°	🌊 Cool	🚫 Cold	Jun 5
8	Sheepscot River At North Whitefield, Maine River	62.2°	16.8°	🌊 Cool	🚫 Cold	Sep 29
9	Kennebec River At North Sidney, Maine River	61.7°	16.5°	🌊 Cool	🚫 Cold	Sep 30
10	Ducktrap River Near Lincolnville, Maine River	60.4°	15.8°	🌊 Cool	🚫 Cold	Sep 29
11	Piscataquis River Near Dover-Foxcroft, Maine River	60.3°	15.7°	🌊 Cool	🚫 Cold	Sep 29
12	Presumpscot River Near West Falmouth, Maine River	59.9°	15.5°	🌊 Cool	🚫 Cold	Sep 30
13	West Grand Lake At Grand Lake Stream, Maine River	58.8°	14.9°	🌊 Cool	🚫 Cold	Jun 5
14	St. John River At Ninemile Bridge, Maine River	56.1°	13.4°	🌊 Cool	🚫 Cold	Sep 29
15	Meduxnekeag R Above S Br Medux. R Nr Houlton, Me Lake	55.4°	13°	🌊 Cool	🚫 Cold	Sep 30
16	Old Stream Near Wesley, Maine River	—	—	—	—	—
17	Mattawamkeag River Near Mattawamkeag, Maine River	—	—	—	—	—
18	Kenduskeag Stream Near Bangor, Maine River	—	—	—	—	—
19	Carrabassett River Near North Anson, Maine River	—	—	—	—	—
20	Androscoggin River At Rumford, Maine River	—	—	—	—	—
21	Saco River At Cornish, Maine River	—	—	—	—	—
22	Kennebec River At Calumet Bridge At Augusta, Maine River	—	—	—	—	—
23	St. John River Below Fish R, Nr Fort Kent, Maine River	—	—	—	—	—
24	Sebec River At Sebec, Maine River	—	—	—	—	—
25	Spencer Stream Near Grand Falls, Maine River	—	—	—	—	—
26	Cobbosseecontee Stream At Gardiner, Maine River	—	—	—	—	—
27	Royal River At Yarmouth, Maine River	—	—	—	—	—
28	St. John River At Dickey, Maine River	—	—	—	—	—
29	Williams Brook At Phair, Maine River	—	—	—	—	—
30	St. Croix River At Baring, Maine River	—	—	—	—	—
31	Otter Creek Near Bar Harbor, Maine River	—	—	—	—	—
32	Kingsbury Stream At Abbot Village, Maine River	—	—	—	—	—
33	Sandy River Near Madrid, Maine River	—	—	—	—	—
34	Nezinscot River At Turner Center, Maine River	—	—	—	—	—
35	Mousam River At Route 4 Near Sanford, Maine River	—	—	—	—	—
36	Kennebec River At Gardiner, Maine River	—	—	—	—	—
37	Aroostook River At Washburn, Maine River	—	—	—	—	—
38	Libby Brook Near Northfield, Maine River	—	—	—	—	—
39	Wytopitlock Stream Near Wytopitlock Maine River	—	—	—	—	—
40	Penobscot River At West Enfield, Maine River	—	—	—	—	—
41	Kennebec River At Bingham, Maine River	—	—	—	—	—
42	Ellis River At South Andover, Maine River	—	—	—	—	—
43	Fish River Near Fort Kent, Maine River	—	—	—	—	—
44	Pearce Brook At Route 1 At Houlton, Maine River	—	—	—	—	—
45	S. Br. Penobscot River Nr Canada Falls Lake, Maine River	—	—	—	—	—
46	Black Stream Near Dover-Foxcroft, Maine River	—	—	—	—	—
47	Dead River Near Dead River, Maine River	—	—	—	—	—
48	East Branch Wesserunsett Stream Near Athens, Maine River	—	—	—	—	—
49	Androscoggin River Near Auburn, Maine River	—	—	—	—	—
50	East Branch Penobscot River At Grindstone, Maine River	—	—	—	—	—
51	Branch Brook Near Kennebunk, Maine River	—	—	—	—	—
52	Big Black River Near Depot Mtn, Maine River	—	—	—	—	—
53	Little Madawaska River At Caribou, Maine River	—	—	—	—	—
54	Piscataquis River At Blanchard, Maine River	—	—	—	—	—
55	Kennebec River Near Madison, Maine River	—	—	—	—	—
56	Swift River Near Roxbury, Maine River	—	—	—	—	—
57	Kennebunk River Near Kennebunk, Maine River	—	—	—	—	—
58	Kennebec River At Hallowell, Maine River	—	—	—	—	—
59	Aroostook River Near Masardis, Maine River	—	—	—	—	—
60	St. Croix River At Vanceboro, Maine River	—	—	—	—	—
61	Seboeis River Near Shin Pond, Maine River	—	—	—	—	—
62	Piscataquis River At Medford, Maine River	—	—	—	—	—
63	Austin Stream At Bingham, Maine River	—	—	—	—	—
64	Wild River At Gilead, Maine River	—	—	—	—	—
65	Stony Brook At East Sebago, Maine River	—	—	—	—	—
66	Penobscot River At Bangor, Maine River	—	—	—	—	—
67	North Branch Penobscot River Nr Pittston Farm, Me River	—	—	—	—	—
68	Kennebec River At The Forks, Maine River	—	—	—	—	—
69	Sandy River Near Mercer, Maine River	—	—	—	—	—
70	Little Androscoggin River Near South Paris, Maine River	—	—	—	—	—
71	Mousam River Near West Kennebunk, Maine River	—	—	—	—	—
72	Hardwood Brook Below Glidden Brk Nr Caribou, Maine River	—	—	—	—	—
73	Grand Lake Stream At Grand Lake Stream, Maine River	—	—	—	—	—

Narraguagus River At Cherryfield, Maine River

75.4°F

☀️ Warm

Meduxnekeag River At Lowery Rd. Nr Houlton, Maine River

66.7°F

🌤️ Comfortable

St. Croix River At Milltown, Maine River

66.7°F

🌤️ Comfortable

Allagash River Near Allagash, Maine River

66.4°F

🌤️ Comfortable

Lewy Lake At Princeton, Maine Lake

64.6°F

🌊 Cool

Penobscot River At Eddington, Maine River

63.9°F

🌊 Cool

E. Br. Penobscot River Below Grand Lake Matagamon River

63.5°F

🌊 Cool

Sheepscot River At North Whitefield, Maine River

62.2°F

🌊 Cool

Kennebec River At North Sidney, Maine River

61.7°F

🌊 Cool

Ducktrap River Near Lincolnville, Maine River

60.4°F

🌊 Cool

Piscataquis River Near Dover-Foxcroft, Maine River

60.3°F

🌊 Cool

Presumpscot River Near West Falmouth, Maine River

59.9°F

🌊 Cool

West Grand Lake At Grand Lake Stream, Maine River

58.8°F

🌊 Cool

St. John River At Ninemile Bridge, Maine River

56.1°F

🌊 Cool

Meduxnekeag R Above S Br Medux. R Nr Houlton, Me Lake

55.4°F

🌊 Cool

Old Stream Near Wesley, Maine River

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Mattawamkeag River Near Mattawamkeag, Maine River

—

Kenduskeag Stream Near Bangor, Maine River

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Carrabassett River Near North Anson, Maine River

—

Androscoggin River At Rumford, Maine River

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More Maine Resources

🗺️ Maine Water Levels 🎣 Weekly Fishing Report ⛵ Boat Ramp Status 🌵 Drought Conditions 🌡️ All States

❓ Maine Water Temperature FAQ

What is the warmest lake in Maine today?

Based on our latest USGS data, Narraguagus River At Cherryfield, Maine is currently the warmest water body in Maine at 75.4°F.

Which Maine lakes are good for swimming right now?

Lakes with water temperatures above 72°F are generally comfortable for swimming. Currently, Maine's average water temperature is 62.8°F — check individual lakes above for specific conditions.

What is the best water temperature for fishing in Maine?

The optimal temperature range depends on your target species. For bass fishing, look for water bodies between 65–75°F. For trout, target the coldest water bodies in Maine — typically 50–65°F. Use the table above to identify which lakes are in the ideal range for your target species.

🔬 Data Methodology & Sources

Water temperature readings on this site are collected from USGS (United States Geological Survey) monitoring stations installed at lakes, rivers, and reservoirs across the country. Sensors measure water surface temperature in Celsius, which is converted to Fahrenheit for display. Data is retrieved and stored daily. Temperatures shown reflect the most recent available sensor reading for each water body, typically from the past 1–30 days depending on station reporting frequency.

⚠️ Water temperatures can vary significantly across a water body due to depth, currents, and time of day. Sensor readings represent conditions at the monitoring station location. Always exercise caution when swimming and consult local authorities for official safety advisories.