Water Temperature of the Gulf of Maine in Portland, ME

Current Water Temperature

37.4°F

Measurement Time: Monday, March 23, 2026, 4:00 AM EDT

Today's Tides

 High: March 23, 2:30 AM, 10.7 ft
Low: March 23, 8:55 AM, -1.0 ft
 High: March 23, 3:10 PM, 9.4 ft
Low: March 23, 9:08 PM, 0.2 ft

Temperature Locations

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Local Points of Interest

Fore River; Portland Harbor; Port of Portland; Bug Light Park; Fort Allen Park

Gulf of Maine

Station Name: Portland
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 26 feet

Sensor Depth: -8 feet

Nearest Address:
98 Ocean Gateway Pier
Portland, ME 04101
Cumberland County

GPS Coordinates: 43.65806, -70.24417

Nearby Water Temperatures

Gulf of Maine, Cape Elizabeth, ME (10.6 mi)
Gulf of Maine, Monhegan, ME (44.6 mi)
Piscataqua River, Kittery, ME (47.1 mi)
Sheepscot River, Whitefield, ME (50.7 mi)
Gulf of Maine, Gloucester, NH (59.4 mi)
Wild River, Gilead, ME (62.4 mi)
Ducktrap River, Lincolnville, ME (74.9 mi)
Atlantic Ocean, Scituate, MA (93 mi)
Shawsheen River, Bedford, MA (97.3 mi)
Cambridge Reservoir Tributary 2, Lexington, MA (98.8 mi)
Cambridge Reservoir Tributary 1, Lexington, MA (98.9 mi)
Hobbs Brook, Lincoln, MA (99 mi)
Fresh Pond, Cambridge, MA (99.1 mi)
Cambridge Reservoir Tributary 3, Waltham, MA (99.7 mi)
Cambridge Reservoir, Lincoln, MA (99.9 mi)

Weather for Portland, Maine

Current Weather

30.9°F
Mist
Mist
19.9°F
33.6°F
100%
NNE 15.7 mph
21.5 mph
23.4°F
32.5°F
0 in
100%
6 mi
1011 mbar
0

Five Day Weather Forecast

Moderate or heavy snow showers
Mon
H: 34°F
L: 32°F
Sunny
Tue
H: 44°F
L: 31°F
Overcast
Wed
H: 42°F
L: 35°F
Patchy rain nearby
Thu
H: 44°F
L: 37°F
Patchy rain nearby
Fri
H: 54°F
L: 27°F

Air Quality

AQI: 1 - Good
PM2.5: 2.15 μg/m3
PM10: 2.25 μg/m3
Carbon Monoxide: 170.85 μg/m3
Nitrogen Dioxide: 3.85 μg/m3
Sulphur Dioxide: 2.05 μg/m3
Ozone: 94 μg/m3

Astronomical

Sunrise: 6:39 AM
Sun Transit: 12:00 AM
Sunset: 6:57 PM
Daylight: 12 hrs 18 mins
Moonrise: 8:46 AM
Moon Transit: 4:54 PM
Moonset: 12:56 AM
Moon Phase: Waxing Crescent
Moon Illumination: 23.8%

Best Times for Fishing or Hunting

Major Periods

6:39 AM - 9:09 AM
4:24 PM - 6:54 PM

Minor Periods

8:16 AM - 9:46 AM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Winter Weather Advisory issued March 22 at 2:08PM EDT until March 23 at 5:00AM EDT by NWS Gray ME

Effective: Sun March 22, 2026, 2:08 PM
Expires: Mon March 23, 2026, 2:15 AM

* WHAT...Snow. Additional snow accumulations up to 3 inches for a storm total of 3 to 6 inches. * WHERE...Portions of south central, southwest, west central, and western Maine. * WHEN...Until 5 AM EDT Monday. * IMPACTS...Low pressure will bring a period of light snowfall to the region. Although snowfall amounts will be light, travel will still be impacted due to snowfall accumulations on untreated roads. Even light snowfall amounts can accumulate on roads and cause dangerous driving conditions due to snow covered roads.

Slow down and use caution while traveling. The latest road conditions can be obtained by going to newengland511.org


Winter Weather Advisory issued March 22 at 8:10PM EDT until March 23 at 5:00AM EDT by NWS Gray ME

Effective: Sun March 22, 2026, 8:10 PM
Expires: Mon March 23, 2026, 5:00 AM

* WHAT...Intermittent light snow and freezing drizzle. * WHERE...Portions of south central, southwest, west central, and western Maine. * WHEN...Until 5 AM EDT Monday. * IMPACTS...Light freezing drizzle will occur overnight. In addition, slush from earlier snowfall will likely refreeze. Slippery roads are expected.

Slow down and use caution while traveling. The latest road conditions can be obtained by going to newengland511.org


Winter Weather Advisory issued March 23 at 2:27AM EDT until March 23 at 5:00AM EDT by NWS Gray ME

Effective: Mon March 23, 2026, 2:27 AM
Expires: Mon March 23, 2026, 5:00 AM

* WHAT...Intermittent light snow and freezing drizzle. * WHERE...Portions of south central, southwest, west central, and western Maine. * WHEN...Until 5 AM EDT early this morning. * IMPACTS...Light freezing drizzle will occur into early this morning. In addition, slush from earlier snowfall will likely refreeze. Slippery roads are expected.

Slow down and use caution while traveling. The latest road conditions can be obtained by going to newengland511.org
Monday, March 23, 2026

Weather Forecast

Moderate or heavy snow showers
34.2°F
32.2°F
33.4°F
90%
0.13 in
87%
19%
15.7 mph
0.7


Air Quality

AQI: 1 - Good
PM2.5: 2.79 μg/m3
PM10: 3.24 μg/m3
Carbon Monoxide: 186.73 μg/m3
Nitrogen Dioxide: 4.53 μg/m3
Sulphur Dioxide: 1.71 μg/m3
Ozone: 92.88 μg/m3

Astronomical

Sunrise: 6:39 AM
Sun Transit: 12:00 AM
Sunset: 6:57 PM
Daylight: 12 hrs 18 mins
Moonrise: 8:46 AM
Moon Transit: 4:54 PM
Moonset: 12:56 AM
Moon Phase: Waxing Crescent
Moon Illumination: 23.8%

Best Times for Fishing or Hunting

Major Periods

6:39 AM - 9:09 AM
4:24 PM - 6:54 PM

Minor Periods

8:16 AM - 9:46 AM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Tuesday, March 24, 2026

Weather Forecast

Sunny
44.2°F
30.9°F
36.3°F
69%
0 in
0%
0%
17 mph
0.8


Air Quality

AQI: 1 - Good
PM2.5: 3.86 μg/m3
PM10: 4.47 μg/m3
Carbon Monoxide: 187.13 μg/m3
Nitrogen Dioxide: 4.31 μg/m3
Sulphur Dioxide: 1.72 μg/m3
Ozone: 94.8 μg/m3

Astronomical

Sunrise: 6:37 AM
Sun Transit: 12:00 AM
Sunset: 6:58 PM
Daylight: 12 hrs 21 mins
Moonrise: 9:35 AM
Moon Transit: 5:57 PM
Moonset: 1:13 AM
Moon Phase: Waxing Crescent
Moon Illumination: 34.0%

Best Times for Fishing or Hunting

Major Periods

7:41 AM - 10:11 AM
5:27 PM - 7:57 PM

Minor Periods

9:05 AM - 10:35 AM
12:43 AM - 2:13 AM

Action Rating: 2 out of 5

Wednesday, March 25, 2026

Weather Forecast

Overcast
41.9°F
34.9°F
38°F
68%
0 in
0%
0%
16.6 mph
0.7


Air Quality

AQI: 1 - Good
PM2.5: 5.13 μg/m3
PM10: 6.3 μg/m3
Carbon Monoxide: 205.21 μg/m3
Nitrogen Dioxide: 6.08 μg/m3
Sulphur Dioxide: 2 μg/m3
Ozone: 87.56 μg/m3

Astronomical

Sunrise: 6:35 AM
Sun Transit: 12:00 AM
Sunset: 7:00 PM
Daylight: 12 hrs 24 mins
Moonrise: 10:37 AM
Moon Transit: 7:00 PM
Moonset: 2:22 AM
Moon Phase: First Quarter
Moon Illumination: 45.1%

Best Times for Fishing or Hunting

Major Periods

8:43 AM - 11:13 AM
6:30 PM - 9:00 PM

Minor Periods

10:07 AM - 11:37 AM
1:52 AM - 3:22 AM

Action Rating: 3 out of 5

Thursday, March 26, 2026

Weather Forecast

Patchy rain nearby
43.9°F
36.9°F
40.5°F
90%
0.15 in
89%
0%
19 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 8.32 μg/m3
PM10: 10.09 μg/m3
Carbon Monoxide: 182.56 μg/m3
Nitrogen Dioxide: 7.09 μg/m3
Sulphur Dioxide: 3.66 μg/m3
Ozone: 93.72 μg/m3

Astronomical

Sunrise: 6:34 AM
Sun Transit: 12:00 AM
Sunset: 7:01 PM
Daylight: 12 hrs 27 mins
Moonrise: 11:48 AM
Moon Transit: 8:00 PM
Moonset: 3:17 AM
Moon Phase: First Quarter
Moon Illumination: 56.4%

Best Times for Fishing or Hunting

Major Periods

9:45 AM - 12:15 AM
7:30 PM - 10:00 PM

Minor Periods

11:18 AM - 12:48 AM
2:47 AM - 4:17 AM

Action Rating: 3 out of 5

Friday, March 27, 2026

Weather Forecast

Patchy rain nearby
54.4°F
27°F
45°F
68%
0.02 in
73%
0%
20.8 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 12.76 μg/m3
PM10: 14.1 μg/m3
Carbon Monoxide: 215.45 μg/m3
Nitrogen Dioxide: 7.88 μg/m3
Sulphur Dioxide: 4.6 μg/m3
Ozone: 94.69 μg/m3

Astronomical

Sunrise: 6:32 AM
Sun Transit: 12:00 AM
Sunset: 7:02 PM
Daylight: 12 hrs 30 mins
Moonrise: 1:05 PM
Moon Transit: 8:55 PM
Moonset: 4:00 AM
Moon Phase: First Quarter
Moon Illumination: 67.4%

Best Times for Fishing or Hunting

Major Periods

10:42 AM - 1:12 PM
8:25 PM - 10:55 PM

Minor Periods

12:35 AM - 2:05 PM
3:30 AM - 5:00 AM

Action Rating: 2 out of 5

The times presented here are based upon the solunar theory, which is the idea that the movements of fish and other animals are affected by the location of the sun and moon. The major periods are believed to be the times of the greatest animal activity and occur when the moon is directly overhead or underfoot (lunar transits). The minor periods also see increased activity and occur when the moon is rising or setting. The strongest activity occurs during full or new moons, and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.

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