Water Temperature of the Gulf of Maine in Portland, ME

Current Water Temperature

60.6°F

Measurement Time: Tuesday, July 14, 2026, 9:00 AM EDT

Today's Tides

Low: July 14, 5:20 AM, -1.1 ft
 High: July 14, 11:35 AM, 9.5 ft
Low: July 14, 5:26 PM, 0.0 ft
 High: July 14, 11:45 PM, 11.5 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

75.9°F
Partly cloudy
Partly cloudy
77.5°F
83.9°F
64%
WSW 10.7 mph
16 mph
83.1°F
60.2°F
0 in
75%
9 mi
1014 mbar
2.3

Five Day Weather Forecast

Sunny
Tue
H: 102°F
L: 67°F
Sunny
Wed
H: 87°F
L: 70°F
Sunny
Thu
H: 84°F
L: 66°F
Sunny
Fri
H: 74°F
L: 56°F
Sunny
Sat
H: 76°F
L: 57°F

Air Quality

AQI: 1 - Good
PM2.5: 7.4 μg/m3
PM10: 7.8 μg/m3
Carbon Monoxide: 151 μg/m3
Nitrogen Dioxide: 2.5 μg/m3
Sulphur Dioxide: 0.8 μg/m3
Ozone: 87 μg/m3

Astronomical

Sunrise: 5:12 AM
Sun Transit: 12:46 AM
Sunset: 8:21 PM
Daylight: 15 hrs 9 mins
Moonrise: 5:03 AM
Moon Transit: 1:07 PM
Moonset: 8:58 PM
Moon Phase: New
Moon Illumination: 1.9%

Best Times for Fishing or Hunting

Major Periods

2:51 AM - 5:21 AM
12:37 AM - 3:07 PM

Minor Periods

8:28 PM - 9:58 PM
4:33 AM - 6:03 AM

Action Rating: 5 out of 5

Heat Advisory issued July 13 at 2:22PM EDT until July 14 at 8:00PM EDT by NWS Gray ME

Effective: Mon July 13, 2026, 2:22 PM
Expires: Tue July 14, 2026, 5:30 AM

* WHAT...Heat index values in the mid to upper 90s expected. * WHERE...Coastal Cumberland County. * WHEN...From 11 AM to 8 PM EDT Tuesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Low temperatures in the lower 70s will cause heat stress to accumulate overnight Tuesday, ahead of another hot day Wednesday.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.
Tuesday, July 14, 2026

Weather Forecast

Sunny
101.8°F
67.1°F
84.3°F
55%
0 in
2%
0%
13.6 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 8.28 μg/m3
PM10: 9.03 μg/m3
Carbon Monoxide: 157.79 μg/m3
Nitrogen Dioxide: 2.84 μg/m3
Sulphur Dioxide: 0.78 μg/m3
Ozone: 101.54 μg/m3

Astronomical

Sunrise: 5:12 AM
Sun Transit: 12:46 AM
Sunset: 8:21 PM
Daylight: 15 hrs 9 mins
Moonrise: 5:03 AM
Moon Transit: 1:07 PM
Moonset: 8:58 PM
Moon Phase: New
Moon Illumination: 1.9%

Best Times for Fishing or Hunting

Major Periods

2:51 AM - 5:21 AM
12:37 AM - 3:07 PM

Minor Periods

8:28 PM - 9:58 PM
4:33 AM - 6:03 AM

Action Rating: 5 out of 5

Wednesday, July 15, 2026

Weather Forecast

Sunny
86.5°F
69.5°F
78.3°F
58%
0.19 in
57%
0%
13.9 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 4.1 μg/m3
PM10: 4.23 μg/m3
Carbon Monoxide: 138.54 μg/m3
Nitrogen Dioxide: 1.36 μg/m3
Sulphur Dioxide: 0.58 μg/m3
Ozone: 97.17 μg/m3

Astronomical

Sunrise: 5:13 AM
Sun Transit: 12:47 AM
Sunset: 8:20 PM
Daylight: 15 hrs 7 mins
Moonrise: 6:27 AM
Moon Transit: 2:06 PM
Moonset: 9:30 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

3:51 AM - 6:21 AM
1:36 PM - 4:06 PM

Minor Periods

9:00 PM - 10:30 PM
5:57 AM - 7:27 AM

Action Rating: 3 out of 5

Thursday, July 16, 2026

Weather Forecast

Sunny
84.1°F
65.5°F
74.2°F
50%
0.01 in
17%
0%
12.5 mph
7.4


Air Quality

AQI: 1 - Good
PM2.5: 4.43 μg/m3
PM10: 4.88 μg/m3
Carbon Monoxide: 146.79 μg/m3
Nitrogen Dioxide: 2.08 μg/m3
Sulphur Dioxide: 0.44 μg/m3
Ozone: 82.75 μg/m3

Astronomical

Sunrise: 5:14 AM
Sun Transit: 12:47 AM
Sunset: 8:20 PM
Daylight: 15 hrs 6 mins
Moonrise: 7:48 AM
Moon Transit: 3:00 PM
Moonset: 9:56 PM
Moon Phase: New
Moon Illumination: 2.4%

Best Times for Fishing or Hunting

Major Periods

4:47 AM - 7:17 AM
2:30 PM - 5:00 PM

Minor Periods

9:26 PM - 10:56 PM
7:18 AM - 8:48 AM

Action Rating: 4 out of 5

Friday, July 17, 2026

Weather Forecast

Sunny
74.3°F
55.8°F
65.5°F
53%
0 in
3%
0%
11 mph
7.3


Air Quality

AQI: 1 - Good
PM2.5: 4.1 μg/m3
PM10: 4.21 μg/m3
Carbon Monoxide: 122.71 μg/m3
Nitrogen Dioxide: 1.59 μg/m3
Sulphur Dioxide: 0.63 μg/m3
Ozone: 75.79 μg/m3

Astronomical

Sunrise: 5:15 AM
Sun Transit: 12:47 AM
Sunset: 8:19 PM
Daylight: 15 hrs 4 mins
Moonrise: 9:05 AM
Moon Transit: 3:48 PM
Moonset: 10:18 PM
Moon Phase: Waxing Crescent
Moon Illumination: 7.0%

Best Times for Fishing or Hunting

Major Periods

5:37 AM - 8:07 AM
3:18 PM - 5:48 PM

Minor Periods

9:48 PM - 11:18 PM
8:35 AM - 10:05 AM

Action Rating: 3 out of 5

Saturday, July 18, 2026

Weather Forecast

Sunny
75.7°F
57°F
67.2°F
58%
0.15 in
57%
0%
10.7 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 7.24 μg/m3
PM10: 7.47 μg/m3
Carbon Monoxide: 203.33 μg/m3
Nitrogen Dioxide: 6.9 μg/m3
Sulphur Dioxide: 0.91 μg/m3
Ozone: 55 μg/m3

Astronomical

Sunrise: 5:16 AM
Sun Transit: 12:47 AM
Sunset: 8:18 PM
Daylight: 15 hrs 2 mins
Moonrise: 10:18 AM
Moon Transit: 4:33 PM
Moonset: 10:37 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.9%

Best Times for Fishing or Hunting

Major Periods

6:24 AM - 8:54 AM
4:03 PM - 6:33 PM

Minor Periods

10:07 PM - 11:37 PM
9:48 AM - 11:18 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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