Water Temperature of the Gulf of Maine in Portland, ME

Current Water Temperature

52.9°F

Measurement Time: Wednesday, October 29, 2025, 9:24 AM EDT

Today's Tides

 High: October 29, 5:09 AM, 7.64 ft
Low: October 29, 10:56 AM, 2.22 ft
 High: October 29, 5:12 PM, 8.69 ft
Low: October 29, 11:41 PM, 1.26 ft

Temperature Locations

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Local Points of Interest

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

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Gulf of Maine

Station Name: Portland
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 26 feet / 8 meters

Sensor Depth: -8.1 feet / -2.5 meters

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 (93.0 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 (99.0 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

43°F
Overcast
Conditions: Overcast
Humidity: 73%
Feels Like: 36.4°F
Wind: NNE 12.5 mph
Wind Gusts: 16.2 mph
Pressure: 30.24 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 9 mi
UV Index: 0.4

Five Day Weather Forecast

Overcast
Wed
H: 48°F
L: 43°F
Moderate rain
Thu
H: 49°F
L: 46°F
Heavy rain
Fri
H: 57°F
L: 47°F
Overcast
Sat
H: 49°F
L: 41°F
Sunny
Sun
H: 49°F
L: 36°F

Air Quality

AQI: 1 - Good
PM2.5: 2.95 μg/m3
PM10: 3.55 μg/m3
Carbon Monoxide: 149.85 μg/m3
Nitrogen Dioxide: 3.35 μg/m3
Sulphur Dioxide: 1.65 μg/m3
Ozone: 61 μg/m3

Astronomical

Sunrise: 7:13 AM
Sun Transit: 12:24 AM
Sunset: 5:35 PM
Daylight: 10 hrs 22 mins
Moonrise: 2:21 PM
Moon Transit: 7:00 PM
Moonset: 11:48 PM
Moon Phase: First Quarter
Moon Illumination: 52.5%

Best Times for Fishing or Hunting

Major Periods

8:49 AM - 11:19 AM
6:30 PM - 9:00 PM

Minor Periods

12:00 AM - 12:00 AM
1:51 PM - 3:21 PM

Action Rating: 2 out of 5

Wednesday, October 29, 2025

Weather Forecast

Conditions: Overcast
Average Temperature: 46.3°F
Average Humidity: 75%
Chance of Rain: 0%
Wind: 13 mph
UV Index: 0.5

Air Quality

AQI: 1 - Good
PM2.5: 2.95 μg/m3
PM10: 3.22 μg/m3
Carbon Monoxide: 156.85 μg/m3
Nitrogen Dioxide: 5.34 μg/m3
Sulphur Dioxide: 1.71 μg/m3
Ozone: 53.4 μg/m3

Astronomical

Sunrise: 7:13 AM
Sun Transit: 12:24 AM
Sunset: 5:35 PM
Daylight: 10 hrs 22 mins
Moonrise: 2:21 PM
Moon Transit: 7:00 PM
Moonset: 11:48 PM
Moon Phase: First Quarter
Moon Illumination: 52.5%

Best Times for Fishing or Hunting

Major Periods

8:49 AM - 11:19 AM
6:30 PM - 9:00 PM

Minor Periods

12:00 AM - 12:00 AM
1:51 PM - 3:21 PM

Action Rating: 2 out of 5

Thursday, October 30, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 48.2°F
Average Humidity: 90%
Chance of Rain: 89%
Wind: 18.6 mph
UV Index: 0.4

Air Quality

AQI: 1 - Good
PM2.5: 4.41 μg/m3
PM10: 5.27 μg/m3
Carbon Monoxide: 163.17 μg/m3
Nitrogen Dioxide: 7.01 μg/m3
Sulphur Dioxide: 2.03 μg/m3
Ozone: 55.16 μg/m3

Astronomical

Sunrise: 7:14 AM
Sun Transit: 12:24 AM
Sunset: 5:34 PM
Daylight: 10 hrs 19 mins
Moonrise: 2:47 PM
Moon Transit: 7:48 PM
Moonset: 12:48 AM
Moon Phase: First Quarter
Moon Illumination: 63.7%

Best Times for Fishing or Hunting

Major Periods

9:37 AM - 12:07 AM
7:18 PM - 9:48 PM

Minor Periods

2:17 PM - 3:47 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Friday, October 31, 2025

Weather Forecast

Conditions: Heavy rain
Average Temperature: 52.5°F
Average Humidity: 89%
Chance of Rain: 85%
Wind: 26.2 mph
UV Index: 0.3

Air Quality

AQI: 1 - Good
PM2.5: 4.1 μg/m3
PM10: 5.17 μg/m3
Carbon Monoxide: 134.69 μg/m3
Nitrogen Dioxide: 3.29 μg/m3
Sulphur Dioxide: 1.58 μg/m3
Ozone: 75.6 μg/m3

Astronomical

Sunrise: 7:16 AM
Sun Transit: 12:24 AM
Sunset: 5:32 PM
Daylight: 10 hrs 17 mins
Moonrise: 3:09 PM
Moon Transit: 8:35 PM
Moonset: 1:00 AM
Moon Phase: First Quarter
Moon Illumination: 74.1%

Best Times for Fishing or Hunting

Major Periods

10:25 AM - 12:55 AM
8:05 PM - 10:35 PM

Minor Periods

2:39 PM - 4:09 PM
12:30 AM - 2:00 AM

Action Rating: 2 out of 5

Saturday, November 1, 2025

Weather Forecast

Conditions: Overcast
Average Temperature: 45.2°F
Average Humidity: 67%
Chance of Rain: 0%
Wind: 24.6 mph
UV Index: 0.4

Air Quality

AQI: 1 - Good
PM2.5: 1.29 μg/m3
PM10: 1.3 μg/m3
Carbon Monoxide: 148.61 μg/m3
Nitrogen Dioxide: 2.27 μg/m3
Sulphur Dioxide: 1.19 μg/m3
Ozone: 68.44 μg/m3

Astronomical

Sunrise: 7:17 AM
Sun Transit: 12:24 AM
Sunset: 5:31 PM
Daylight: 10 hrs 14 mins
Moonrise: 3:30 PM
Moon Transit: 12:00 AM
Moonset: 2:14 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 83.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:12 AM - 1:42 PM

Minor Periods

3:00 PM - 4:30 PM
1:44 AM - 3:14 AM

Action Rating: 2 out of 5

Sunday, November 2, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 40.5°F
Average Humidity: 62%
Chance of Rain: 0%
Wind: 13.2 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 1.9 μg/m3
PM10: 1.91 μg/m3
Carbon Monoxide: 157.16 μg/m3
Nitrogen Dioxide: 3.66 μg/m3
Sulphur Dioxide: 1.32 μg/m3
Ozone: 57.23 μg/m3

Astronomical

Sunrise: 7:18 AM
Sun Transit: 12:24 AM
Sunset: 5:30 PM
Daylight: 10 hrs 12 mins
Moonrise: 3:51 PM
Moon Transit: 12:31 AM
Moonset: 3:29 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 90.9%

Best Times for Fishing or Hunting

Major Periods

12:01 AM - 2:31 PM
12:01 AM - 2:31 PM

Minor Periods

3:21 PM - 4:51 PM
2:59 AM - 4:29 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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