Water Temperature of the Gulf of Maine in Portland, ME

Current Water Temperature

44.4°F

Measurement Time: Thursday, April 23, 2026, 10:12 PM EDT

Today's Tides

 High: April 23, 4:13 AM, 10.2 ft
Low: April 23, 10:45 AM, -0.2 ft
 High: April 23, 5:08 PM, 8.8 ft
Low: April 23, 11:02 PM, 1.1 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

44.1°F
Partly cloudy
Partly cloudy
39.6°F
43.6°F
47%
NW 7.8 mph
13.7 mph
36.9°F
24.8°F
0 in
50%
9 mi
1011 mbar
0

Five Day Weather Forecast

Sunny
Thu
H: 55°F
L: 41°F
Patchy rain nearby
Fri
H: 48°F
L: 36°F
Sunny
Sat
H: 49°F
L: 35°F
Overcast
Sun
H: 50°F
L: 41°F
Partly Cloudy
Mon
H: 52°F
L: 42°F

Air Quality

AQI: 1 - Good
PM2.5: 2.95 μg/m3
PM10: 3.35 μg/m3
Carbon Monoxide: 170.85 μg/m3
Nitrogen Dioxide: 4.35 μg/m3
Sulphur Dioxide: 1.55 μg/m3
Ozone: 79 μg/m3

Astronomical

Sunrise: 5:45 AM
Sun Transit: 12:39 AM
Sunset: 7:34 PM
Daylight: 13 hrs 49 mins
Moonrise: 10:55 AM
Moon Transit: 6:52 PM
Moonset: 1:59 AM
Moon Phase: First Quarter
Moon Illumination: 39.1%

Best Times for Fishing or Hunting

Major Periods

8:38 AM - 11:08 AM
6:22 PM - 8:52 PM

Minor Periods

10:25 AM - 11:55 AM
1:29 AM - 2:59 AM

Action Rating: 2 out of 5

Special Weather Statement issued April 23 at 9:06AM EDT by NWS Gray ME

Effective: Thu April 23, 2026, 9:06 AM
Expires: Thu April 23, 2026, 7:00 PM

A very dry air mass and breezy conditions will combine with dead and dry fuels such as grass, leaves, and twigs to create the potential for uncontrolled fire spread across southern New Hampshire today. This afternoon, relative humidity values will decrease to low levels between 20 to 25 percent. At the same time, northwest winds 15 to 20 mph with frequent gusts to 30 mph will continue to dry fuels and increase fire spread potential. Wind gusts are expected to diminish later this evening with increasing relative humidity values. Extra caution should be taken to prevent wildfires. Always consult with fire officials before engaging in any open burning activities and comply with all applicable laws and regulations. Never leave an open fire unattended and always extinguish campfires completely before leaving.


Thursday, April 23, 2026

Weather Forecast

Sunny
54.7°F
40.5°F
46.6°F
64%
0 in
0%
0%
17.2 mph
4.4


Air Quality

AQI: 1 - Good
PM2.5: 10.03 μg/m3
PM10: 11.37 μg/m3
Carbon Monoxide: 170.97 μg/m3
Nitrogen Dioxide: 5.14 μg/m3
Sulphur Dioxide: 2.01 μg/m3
Ozone: 90 μg/m3

Astronomical

Sunrise: 5:45 AM
Sun Transit: 12:39 AM
Sunset: 7:34 PM
Daylight: 13 hrs 49 mins
Moonrise: 10:55 AM
Moon Transit: 6:52 PM
Moonset: 1:59 AM
Moon Phase: First Quarter
Moon Illumination: 39.1%

Best Times for Fishing or Hunting

Major Periods

8:38 AM - 11:08 AM
6:22 PM - 8:52 PM

Minor Periods

10:25 AM - 11:55 AM
1:29 AM - 2:59 AM

Action Rating: 2 out of 5

Friday, April 24, 2026

Weather Forecast

Patchy rain nearby
47.6°F
36.3°F
42.2°F
58%
0.02 in
89%
0%
11.9 mph
4.7


Air Quality

AQI: 1 - Good
PM2.5: 3.07 μg/m3
PM10: 3.51 μg/m3
Carbon Monoxide: 172.69 μg/m3
Nitrogen Dioxide: 3.88 μg/m3
Sulphur Dioxide: 1.5 μg/m3
Ozone: 85.12 μg/m3

Astronomical

Sunrise: 5:43 AM
Sun Transit: 12:39 AM
Sunset: 7:35 PM
Daylight: 13 hrs 52 mins
Moonrise: 12:12 AM
Moon Transit: 7:44 PM
Moonset: 2:36 AM
Moon Phase: First Quarter
Moon Illumination: 50.4%

Best Times for Fishing or Hunting

Major Periods

9:32 AM - 12:02 AM
7:14 PM - 9:44 PM

Minor Periods

11:42 AM - 1:12 PM
2:06 AM - 3:36 AM

Action Rating: 3 out of 5

Saturday, April 25, 2026

Weather Forecast

Sunny
49.1°F
35.2°F
42.5°F
61%
0 in
0%
0%
11.2 mph
6.7


Air Quality

AQI: 1 - Good
PM2.5: 2.65 μg/m3
PM10: 2.92 μg/m3
Carbon Monoxide: 154.17 μg/m3
Nitrogen Dioxide: 4.5 μg/m3
Sulphur Dioxide: 1.73 μg/m3
Ozone: 73.12 μg/m3

Astronomical

Sunrise: 5:42 AM
Sun Transit: 12:38 AM
Sunset: 7:36 PM
Daylight: 13 hrs 54 mins
Moonrise: 1:26 PM
Moon Transit: 8:33 PM
Moonset: 3:03 AM
Moon Phase: First Quarter
Moon Illumination: 61.6%

Best Times for Fishing or Hunting

Major Periods

10:22 AM - 12:52 AM
8:03 PM - 10:33 PM

Minor Periods

12:56 AM - 2:26 PM
2:33 AM - 4:03 AM

Action Rating: 3 out of 5

Sunday, April 26, 2026

Weather Forecast

Overcast
50.2°F
40.7°F
45.2°F
66%
0 in
0%
0%
7.8 mph
3.9


Air Quality

AQI: 1 - Good
PM2.5: 4.14 μg/m3
PM10: 4.74 μg/m3
Carbon Monoxide: 173.65 μg/m3
Nitrogen Dioxide: 6.15 μg/m3
Sulphur Dioxide: 1.93 μg/m3
Ozone: 75.48 μg/m3

Astronomical

Sunrise: 5:40 AM
Sun Transit: 12:38 AM
Sunset: 7:38 PM
Daylight: 13 hrs 57 mins
Moonrise: 2:37 PM
Moon Transit: 9:17 PM
Moonset: 3:26 AM
Moon Phase: First Quarter
Moon Illumination: 72.3%

Best Times for Fishing or Hunting

Major Periods

11:08 AM - 1:38 PM
8:47 PM - 11:17 PM

Minor Periods

2:07 PM - 3:37 PM
2:56 AM - 4:26 AM

Action Rating: 2 out of 5

Monday, April 27, 2026

Weather Forecast

Partly Cloudy
52.2°F
42.2°F
47.1°F
71%
0 in
0%
0%
8.7 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 7.58 μg/m3
PM10: 8.34 μg/m3
Carbon Monoxide: 194.52 μg/m3
Nitrogen Dioxide: 9.44 μg/m3
Sulphur Dioxide: 2.14 μg/m3
Ozone: 64.38 μg/m3

Astronomical

Sunrise: 5:39 AM
Sun Transit: 12:38 AM
Sunset: 7:39 PM
Daylight: 14 hrs mins
Moonrise: 3:44 PM
Moon Transit: 10:00 PM
Moonset: 3:46 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 81.8%

Best Times for Fishing or Hunting

Major Periods

11:51 AM - 2:21 PM
9:30 PM - 12:00 PM

Minor Periods

3:14 PM - 4:44 PM
3:16 AM - 4:46 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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