Water Temperature of the Gulf of Maine in Portland, ME

Current Water Temperature

58.8°F

Measurement Time: Wednesday, September 30, 2026, 12:00 AM EDT

Today's Tides

 High: September 30, 1:52 AM, 9.7 ft
Low: September 30, 7:51 AM, 0.1 ft
 High: September 30, 2:03 PM, 10.7 ft
Low: September 30, 8:28 PM, -0.6 ft

Temperature Locations

View Nearby Locations     View All Maine Locations     View Locations Near Me

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

59°F
Patchy Fog
Patchy Fog
90%
0 mph
56°F

Weather Forecast

Patchy Fog
Overnight
55°F - Patchy Fog
Patchy Fog then Mostly Sunny
Wednesday
64°F - Patchy Fog then Mostly Sunny
Mostly Cloudy
Wednesday Night
55°F - Mostly Cloudy
Mostly Sunny
Thursday
71°F - Mostly Sunny
Partly Cloudy
Thursday Night
62°F - Partly Cloudy
Mostly Sunny then Chance Rain Showers
Friday
73°F - Mostly Sunny then Chance Rain Showers
Chance Rain Showers
Friday Night
57°F - Chance Rain Showers
Mostly Sunny
Saturday
66°F - Mostly Sunny
Partly Cloudy
Saturday Night
49°F - Partly Cloudy
Chance Rain Showers
Sunday
60°F - Chance Rain Showers
Chance Rain Showers
Sunday Night
50°F - Chance Rain Showers
Chance Rain Showers then Mostly Sunny
Monday
61°F - Chance Rain Showers then Mostly Sunny
Mostly Clear
Monday Night
44°F - Mostly Clear
Sunny
Tuesday
57°F - Sunny

Astronomical

Sunrise: 6:38 AM
Sun Transit: 12:30 AM
Sunset: 6:24 PM
Daylight: 11 hrs 46 mins
Moonrise: 8:16 PM
Moon Transit: 3:25 AM
Moonset: 11:29 AM
Moon Phase: Waning Gibbous
Moon Illumination: 76.5%

Best Times for Fishing or Hunting

Major Periods

2:55 AM - 5:25 AM
6:10 PM - 8:40 PM

Minor Periods

7:46 PM - 9:16 PM
10:59 AM - 12:29 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:38 AM
Sun Transit: 12:30 AM
Sunset: 6:24 PM
Daylight: 11 hrs 46 mins
Moonrise: 8:16 PM
Moon Transit: 3:25 AM
Moonset: 11:29 AM
Moon Phase: Waning Gibbous
Moon Illumination: 76.5%

Best Times for Fishing or Hunting

Major Periods

2:55 AM - 5:25 AM
6:10 PM - 8:40 PM

Minor Periods

7:46 PM - 9:16 PM
10:59 AM - 12:29 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:38 AM
Sun Transit: 12:30 AM
Sunset: 6:24 PM
Daylight: 11 hrs 46 mins
Moonrise: 8:16 PM
Moon Transit: 3:25 AM
Moonset: 11:29 AM
Moon Phase: Waning Gibbous
Moon Illumination: 76.5%

Best Times for Fishing or Hunting

Major Periods

2:55 AM - 5:25 AM
6:10 PM - 8:40 PM

Minor Periods

7:46 PM - 9:16 PM
10:59 AM - 12:29 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:38 AM
Sun Transit: 12:30 AM
Sunset: 6:24 PM
Daylight: 11 hrs 46 mins
Moonrise: 8:16 PM
Moon Transit: 3:25 AM
Moonset: 11:29 AM
Moon Phase: Waning Gibbous
Moon Illumination: 76.5%

Best Times for Fishing or Hunting

Major Periods

2:55 AM - 5:25 AM
6:10 PM - 8:40 PM

Minor Periods

7:46 PM - 9:16 PM
10:59 AM - 12:29 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:39 AM
Sun Transit: 12:30 AM
Sunset: 6:22 PM
Daylight: 11 hrs 43 mins
Moonrise: 9:07 PM
Moon Transit: 4:25 AM
Moonset: 12:45 AM
Moon Phase: Waning Gibbous
Moon Illumination: 66.3%

Best Times for Fishing or Hunting

Major Periods

3:55 AM - 6:25 AM
7:12 PM - 9:42 PM

Minor Periods

8:37 PM - 10:07 PM
12:15 AM - 1:45 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:39 AM
Sun Transit: 12:30 AM
Sunset: 6:22 PM
Daylight: 11 hrs 43 mins
Moonrise: 9:07 PM
Moon Transit: 4:25 AM
Moonset: 12:45 AM
Moon Phase: Waning Gibbous
Moon Illumination: 66.3%

Best Times for Fishing or Hunting

Major Periods

3:55 AM - 6:25 AM
7:12 PM - 9:42 PM

Minor Periods

8:37 PM - 10:07 PM
12:15 AM - 1:45 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:40 AM
Sun Transit: 12:30 AM
Sunset: 6:20 PM
Daylight: 11 hrs 40 mins
Moonrise: 10:12 PM
Moon Transit: 5:28 AM
Moonset: 1:50 PM
Moon Phase: Last Quarter
Moon Illumination: 55.3%

Best Times for Fishing or Hunting

Major Periods

4:58 AM - 7:28 AM
8:14 PM - 10:44 PM

Minor Periods

9:42 PM - 11:12 PM
1:20 PM - 2:50 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:40 AM
Sun Transit: 12:30 AM
Sunset: 6:20 PM
Daylight: 11 hrs 40 mins
Moonrise: 10:12 PM
Moon Transit: 5:28 AM
Moonset: 1:50 PM
Moon Phase: Last Quarter
Moon Illumination: 55.3%

Best Times for Fishing or Hunting

Major Periods

4:58 AM - 7:28 AM
8:14 PM - 10:44 PM

Minor Periods

9:42 PM - 11:12 PM
1:20 PM - 2:50 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:41 AM
Sun Transit: 12:29 AM
Sunset: 6:18 PM
Daylight: 11 hrs 37 mins
Moonrise: 11:24 PM
Moon Transit: 6:31 AM
Moonset: 2:44 PM
Moon Phase: Last Quarter
Moon Illumination: 43.9%

Best Times for Fishing or Hunting

Major Periods

6:01 AM - 8:31 AM
9:16 PM - 11:46 PM

Minor Periods

12:00 AM - 12:00 AM
2:14 PM - 3:44 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:41 AM
Sun Transit: 12:29 AM
Sunset: 6:18 PM
Daylight: 11 hrs 37 mins
Moonrise: 11:24 PM
Moon Transit: 6:31 AM
Moonset: 2:44 PM
Moon Phase: Last Quarter
Moon Illumination: 43.9%

Best Times for Fishing or Hunting

Major Periods

6:01 AM - 8:31 AM
9:16 PM - 11:46 PM

Minor Periods

12:00 AM - 12:00 AM
2:14 PM - 3:44 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:42 AM
Sun Transit: 12:29 AM
Sunset: 6:17 PM
Daylight: 11 hrs 34 mins
Moonrise: 12:24 AM
Moon Transit: 7:31 AM
Moonset: 3:25 PM
Moon Phase: Last Quarter
Moon Illumination: 32.9%

Best Times for Fishing or Hunting

Major Periods

7:01 AM - 9:31 AM
12:00 AM - 12:00 AM

Minor Periods

2:55 PM - 4:25 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:42 AM
Sun Transit: 12:29 AM
Sunset: 6:17 PM
Daylight: 11 hrs 34 mins
Moonrise: 12:24 AM
Moon Transit: 7:31 AM
Moonset: 3:25 PM
Moon Phase: Last Quarter
Moon Illumination: 32.9%

Best Times for Fishing or Hunting

Major Periods

7:01 AM - 9:31 AM
12:00 AM - 12:00 AM

Minor Periods

2:55 PM - 4:25 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:44 AM
Sun Transit: 12:29 AM
Sunset: 6:15 PM
Daylight: 11 hrs 31 mins
Moonrise: 12:43 AM
Moon Transit: 8:27 AM
Moonset: 3:57 PM
Moon Phase: Last Quarter
Moon Illumination: 22.8%

Best Times for Fishing or Hunting

Major Periods

7:57 AM - 10:27 AM
12:00 AM - 12:00 AM

Minor Periods

3:27 PM - 4:57 PM
12:13 AM - 1:43 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:44 AM
Sun Transit: 12:29 AM
Sunset: 6:15 PM
Daylight: 11 hrs 31 mins
Moonrise: 12:43 AM
Moon Transit: 8:27 AM
Moonset: 3:57 PM
Moon Phase: Last Quarter
Moon Illumination: 22.8%

Best Times for Fishing or Hunting

Major Periods

7:57 AM - 10:27 AM
12:00 AM - 12:00 AM

Minor Periods

3:27 PM - 4:57 PM
12:13 AM - 1:43 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:45 AM
Sun Transit: 12:29 AM
Sunset: 6:13 PM
Daylight: 11 hrs 28 mins
Moonrise: 2:00 AM
Moon Transit: 9:19 AM
Moonset: 4:24 PM
Moon Phase: Waning Crescent
Moon Illumination: 14.1%

Best Times for Fishing or Hunting

Major Periods

8:49 AM - 11:19 AM
12:00 AM - 12:00 AM

Minor Periods

3:54 PM - 5:24 PM
1:30 AM - 3:00 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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