Water Temperature of the Gulf of Maine in Portland, ME

Current Water Temperature

35.6°F

Measurement Time: Monday, December 29, 2025, 11:48 AM EST

Today's Tides

 High: December 29, 5:32 AM, 9.7 ft
Low: December 29, 11:54 AM, 0.3 ft
 High: December 29, 6:06 PM, 8.7 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

Sponsored Content

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

41.6°F
Rain
Conditions: Rain
Humidity: 98%
Heat Index: 41.6°F
Feels Like: 37.4°F
Wind: SSE 4.3 mph
Wind Gusts: 11 mph
Wind Chill: 37.4°F
Air Pressure: 993.06 millibars
Dew Point: 37.4°F
Chance of Precipitation: 99%
Precipitation: 0.13 in
Cloud Cover: 100%
Visibility: 1 mi
UV Index: 0

Five Day Weather Forecast

Heavy rain
Mon
H: 45°F
L: 28°F
Partly Cloudy
Tue
H: 27°F
L: 18°F
Overcast
Wed
H: 36°F
L: 20°F
Sunny
Thu
H: 25°F
L: 19°F
Partly Cloudy
Fri
H: 26°F
L: 20°F

Air Quality

AQI: 1 - Good
PM2.5: 7.85 μg/m3
PM10: 8.25 μg/m3
Carbon Monoxide: 231.85 μg/m3
Nitrogen Dioxide: 19.35 μg/m3
Sulphur Dioxide: 2.45 μg/m3
Ozone: 48 μg/m3

Astronomical

Sunrise: 7:14 AM
Sun Transit: 11:43 AM
Sunset: 4:13 PM
Daylight: 8 hrs 58 mins
Moonrise: 12:01 AM
Moon Transit: 7:20 PM
Moonset: 1:36 AM
Moon Phase: First Quarter
Moon Illumination: 73.5%

Best Times for Fishing or Hunting

Major Periods

9:07 AM - 11:37 AM
6:50 PM - 9:20 PM

Minor Periods

11:31 AM - 1:01 PM
1:06 AM - 2:36 AM

Action Rating: 2 out of 5

Winter Weather Advisory issued December 29 at 12:45AM EST until December 29 at 7:00PM EST by NWS Gray ME

Effective: Mon December 29, 2025, 12:45 AM
Expires: Mon December 29, 2025, 12:45 PM

...WINTRY MIX LIKELY THROUGH TODAY... .A messy winter storm has arrived and will last through today. While all winter weather types are possible, it looks like this storm will feature enough freezing rain to make travel hazardous through this afternoon. * WHAT...Mixed precipitation. Additional snow accumulations up to two inches, sleet accumulations around one quarter of an inch, and ice accumulations between one tenth and one half of an inch. * WHERE...Portions of south central, southwest, west central, and western Maine and central and northern New Hampshire. * WHEN...Until 7 PM EST this evening. * IMPACTS...Difficult travel conditions are possible due to icy road conditions. This is especially true on untreated side roads. The hazardous conditions could impact the morning and evening commutes.

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


Winter Weather Advisory issued December 29 at 12:45AM EST until December 29 at 7:00PM EST by NWS Gray ME

Effective: Mon December 29, 2025, 12:45 AM
Expires: Mon December 29, 2025, 12:45 PM

...WINTRY MIX LIKELY THROUGH TODAY... .A messy winter storm has arrived and will last through today. While all winter weather types are possible, it looks like this storm will feature enough freezing rain to make travel hazardous through this afternoon. * WHAT...Mixed precipitation. Additional snow accumulations up to one inch, sleet accumulations up to one tenth of an inch, and ice accumulations around four tenths of an inch. * WHERE...Portions of south central and southwest Maine and southern New Hampshire. * WHEN...Until 7 PM EST this evening. * IMPACTS...Difficult travel conditions are possible due to icy road conditions. This is especially true on untreated side roads. The hazardous conditions could impact the morning and evening commutes.

Slow down and use caution while traveling. The latest road conditions can be obtained by going to newengland511.org
Monday, December 29, 2025

Weather Forecast

Conditions: Heavy rain
Average Temperature: 38.5°F
Average Humidity: 89%
Chance of Rain: 88%
Wind: 20.8 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 9.66 μg/m3
PM10: 10.97 μg/m3
Carbon Monoxide: 239.45 μg/m3
Nitrogen Dioxide: 18.76 μg/m3
Sulphur Dioxide: 2.71 μg/m3
Ozone: 50.6 μg/m3

Astronomical

Sunrise: 7:14 AM
Sun Transit: 11:43 AM
Sunset: 4:13 PM
Daylight: 8 hrs 58 mins
Moonrise: 12:01 AM
Moon Transit: 7:20 PM
Moonset: 1:36 AM
Moon Phase: First Quarter
Moon Illumination: 73.5%

Best Times for Fishing or Hunting

Major Periods

9:07 AM - 11:37 AM
6:50 PM - 9:20 PM

Minor Periods

11:31 AM - 1:01 PM
1:06 AM - 2:36 AM

Action Rating: 2 out of 5

Tuesday, December 30, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 25.1°F
Average Humidity: 62%
Chance of Rain: 0%
Wind: 23.5 mph
UV Index: 0.2

Air Quality

AQI: 1 - Good
PM2.5: 1.71 μg/m3
PM10: 1.79 μg/m3
Carbon Monoxide: 172.77 μg/m3
Nitrogen Dioxide: 3.81 μg/m3
Sulphur Dioxide: 1.47 μg/m3
Ozone: 68.72 μg/m3

Astronomical

Sunrise: 7:14 AM
Sun Transit: 11:43 AM
Sunset: 4:13 PM
Daylight: 8 hrs 59 mins
Moonrise: 12:32 AM
Moon Transit: 8:17 PM
Moonset: 2:56 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 82.8%

Best Times for Fishing or Hunting

Major Periods

10:02 AM - 12:32 AM
7:47 PM - 10:17 PM

Minor Periods

12:02 AM - 1:32 PM
2:26 AM - 3:56 AM

Action Rating: 2 out of 5

Wednesday, December 31, 2025

Weather Forecast

Conditions: Overcast
Average Temperature: 28.5°F
Average Humidity: 70%
Chance of Rain: 0%
Wind: 19.5 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 2.57 μg/m3
PM10: 2.69 μg/m3
Carbon Monoxide: 155.89 μg/m3
Nitrogen Dioxide: 4.96 μg/m3
Sulphur Dioxide: 1.87 μg/m3
Ozone: 74.12 μg/m3

Astronomical

Sunrise: 7:14 AM
Sun Transit: 11:44 AM
Sunset: 4:14 PM
Daylight: 9 hrs mins
Moonrise: 1:11 PM
Moon Transit: 9:20 PM
Moonset: 4:19 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 90.5%

Best Times for Fishing or Hunting

Major Periods

11:03 AM - 1:33 PM
8:50 PM - 11:20 PM

Minor Periods

12:41 AM - 2:11 PM
3:49 AM - 5:19 AM

Action Rating: 2 out of 5

Thursday, January 1, 2026

Weather Forecast

Conditions: Sunny
Average Temperature: 22.4°F
Average Humidity: 54%
Chance of Rain: 0%
Wind: 16.3 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 3.3 μg/m3
PM10: 3.57 μg/m3
Carbon Monoxide: 166.56 μg/m3
Nitrogen Dioxide: 5.31 μg/m3
Sulphur Dioxide: 2.04 μg/m3
Ozone: 74 μg/m3

Astronomical

Sunrise: 7:14 AM
Sun Transit: 11:44 AM
Sunset: 4:15 PM
Daylight: 9 hrs 1 mins
Moonrise: 2:03 PM
Moon Transit: 10:26 PM
Moonset: 5:39 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 96.0%

Best Times for Fishing or Hunting

Major Periods

12:08 AM - 2:38 PM
12:00 AM - 12:00 AM

Minor Periods

1:33 PM - 3:03 PM
5:09 AM - 6:39 AM

Action Rating: 2 out of 5

Friday, January 2, 2026

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 22.2°F
Average Humidity: 60%
Chance of Rain: 0%
Wind: 11 mph
UV Index: 2

Air Quality

AQI: 1 - Good
PM2.5: 4.98 μg/m3
PM10: 5.06 μg/m3
Carbon Monoxide: 186.74 μg/m3
Nitrogen Dioxide: 6.97 μg/m3
Sulphur Dioxide: 2.19 μg/m3
Ozone: 68 μg/m3

Astronomical

Sunrise: 7:14 AM
Sun Transit: 11:45 AM
Sunset: 4:16 PM
Daylight: 9 hrs 2 mins
Moonrise: 3:10 PM
Moon Transit: 11:32 PM
Moonset: 6:51 AM
Moon Phase: Full
Moon Illumination: 99.2%

Best Times for Fishing or Hunting

Major Periods

1:15 PM - 3:45 PM
12:00 AM - 12:00 AM

Minor Periods

2:40 PM - 4:10 PM
6:21 AM - 7:51 AM

Action Rating: 4 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.

Webcams Near Portland, ME