Water Temperature of the Gulf of Maine in Portland, ME
Current Water Temperature
Measurement Time: Sunday, May 10, 2026, 12:12 PM EDT
Today's Tides
High: May 10, 5:43 AM, 8.7 ft
Low: May 10, 12:06 PM, 1.1 ft
High: May 10, 6:30 PM, 8.3 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 ParkStation 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

Five Day Weather Forecast

Sun
H: 58°F
L: 46°F

Mon
H: 56°F
L: 46°F

Tue
H: 55°F
L: 42°F

Wed
H: 55°F
L: 44°F

Thu
H: 55°F
L: 48°F
Air Quality
Nitrogen Dioxide: 4.75 μg/m3
Sulphur Dioxide: 1.75 μg/m3
Ozone: 103 μg/m3
Astronomical
Sun Transit: 12:37 AM
Sunset: 7:54 PM
Daylight: 14 hrs 33 mins
Moon Transit: 7:24 AM
Moonset: 12:46 AM
Moon Phase: Last Quarter
Moon Illumination: 26.2%
Best Times for Fishing or Hunting
Major Periods
6:54 AM - 9:24 AM12:00 AM - 12:00 AM
Minor Periods
12:16 AM - 1:46 PM1:43 AM - 3:13 AM
Action Rating: 2 out of 5
Special Weather Statement issued May 10 at 2:36AM EDT by NWS Gray ME
Effective: Sun May 10, 2026, 2:36 AM
Expires: Sun May 10, 2026, 11:00 AM
* The warm air temperatures today into the middle 60s to near 70 degrees may cause people to underestimate the dangers of the cold water temperatures, which are currently only in the upper 40s across Sebago Lake and Lake Winnipesaukee, and in the upper 40s in the regions smaller lakes and rivers. * The cold water temperatures can quickly cause hypothermia to anyone immersed in the water. According to the US Coast Guard, when the water temperatures are below 50 degrees, the chance of immediate incapacitation due to cold shock is extremely high. Anyone on small boats, canoes, or kayaks should plan accordingly if recreating and use extreme caution to avoid this threat. Paddle smart from the start and always wear your life jacket! * Strong winds are also expected with gusts up to 25 mph from the southwest. If boating on large bodies of water, these strong winds can increase the likelihood of overturning your boat, canoe, or kayak due to increased wave heights.
Weather Forecast
Air Quality
Nitrogen Dioxide: 5.51 μg/m3
Sulphur Dioxide: 1.89 μg/m3
Ozone: 98.08 μg/m3
Astronomical
Sun Transit: 12:37 AM
Sunset: 7:54 PM
Daylight: 14 hrs 33 mins
Moon Transit: 7:24 AM
Moonset: 12:46 AM
Moon Phase: Last Quarter
Moon Illumination: 26.2%
Best Times for Fishing or Hunting
Major Periods
6:54 AM - 9:24 AM12:00 AM - 12:00 AM
Minor Periods
12:16 AM - 1:46 PM1:43 AM - 3:13 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 4.86 μg/m3
Sulphur Dioxide: 1.5 μg/m3
Ozone: 78.48 μg/m3
Astronomical
Sun Transit: 12:37 AM
Sunset: 7:55 PM
Daylight: 14 hrs 35 mins
Moon Transit: 8:09 AM
Moonset: 1:55 PM
Moon Phase: Last Quarter
Moon Illumination: 16.9%
Best Times for Fishing or Hunting
Major Periods
7:39 AM - 10:09 AM12:00 AM - 12:00 AM
Minor Periods
1:25 PM - 2:55 PM2:04 AM - 3:34 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 3.65 μg/m3
Sulphur Dioxide: 1.49 μg/m3
Ozone: 70.04 μg/m3
Astronomical
Sun Transit: 12:37 AM
Sunset: 7:56 PM
Daylight: 14 hrs 37 mins
Moon Transit: 8:53 AM
Moonset: 3:07 PM
Moon Phase: Waning Crescent
Moon Illumination: 9.3%
Best Times for Fishing or Hunting
Major Periods
8:23 AM - 10:53 AM9:11 PM - 11:41 PM
Minor Periods
2:37 PM - 4:07 PM2:24 AM - 3:54 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 6.24 μg/m3
Sulphur Dioxide: 1.66 μg/m3
Ozone: 66.72 μg/m3
Astronomical
Sun Transit: 12:37 AM
Sunset: 7:57 PM
Daylight: 14 hrs 40 mins
Moon Transit: 12:00 AM
Moonset: 4:21 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.8%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM12:00 AM - 12:00 AM
Minor Periods
3:51 PM - 5:21 PM2:44 AM - 4:14 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 3 μg/m3
Sulphur Dioxide: 1.48 μg/m3
Ozone: 85.54 μg/m3
Astronomical
Sun Transit: 12:37 AM
Sunset: 7:58 PM
Daylight: 14 hrs 42 mins
Moon Transit: 10:29 AM
Moonset: 5:39 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.7%
Best Times for Fishing or Hunting
Major Periods
12:18 AM - 2:48 AM9:59 AM - 12:29 AM
Minor Periods
5:09 PM - 6:39 PM3:06 AM - 4:36 AM
Action Rating: 2 out of 5
