Water Temperature of the Gulf of Maine in Portland, ME

Current Water Temperature

52.2°F

Measurement Time: Friday, June 6, 2025, 10:42 AM EDT

Today's Tides

 Low: June 6, 2:29 AM, 1.30 ft
High: June 6, 8:35 AM, 8.21 ft
 Low: June 6, 2:37 PM, 1.53 ft
High: June 6, 8:54 PM, 9.21 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

70°F
Overcast
Conditions: Overcast
Humidity: 84%
Feels Like: 70°F
Wind: NNW 2.7 mph
Wind Gusts: 5.3 mph
Pressure: 29.97 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 9 mi
UV Index: 2.4

Five Day Weather Forecast

Patchy rain nearby
Fri
H: 62°F
L: 53°F
Moderate rain
Sat
H: 56°F
L: 51°F
Cloudy
Sun
H: 62°F
L: 52°F
Patchy rain nearby
Mon
H: 56°F
L: 51°F
Patchy rain nearby
Tue
H: 61°F
L: 54°F

Air Quality

AQI: 1 - Good
PM2.5: 20.72 μg/m3
PM10: 22.76 μg/m3
Carbon Monoxide: 538.35 μg/m3
Nitrogen Dioxide: 5.92 μg/m3
Sulphur Dioxide: 1.85 μg/m3
Ozone: 111 μg/m3

Astronomical

Sunrise: 5:00 AM
Sun Transit: 12:39 AM
Sunset: 8:20 PM
Daylight: 15 hrs 20 mins
Moonrise: 4:06 PM
Moon Transit: 9:23 PM
Moonset: 2:13 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 80.3%

Best Times for Fishing or Hunting

Major Periods

11:15 AM - 1:45 PM
8:53 PM - 11:23 PM

Minor Periods

3:36 PM - 5:06 PM
1:43 AM - 3:13 AM

Action Rating: 2 out of 5

Flood Watch issued June 6 at 7:01AM EDT until June 7 at 12:00AM EDT by NWS Gray ME

Effective: Fri June 6, 2025, 7:01 AM
Expires: Fri June 6, 2025, 7:15 PM

Clusters of slow moving thunderstorms will bring a risk of flash flooding to portions of central and southern New Hampshire today. A nearby stationary front will support storm development this afternoon, with rainfall rates up to 2 inches an hour. These slow moving and repeating rounds of heavy rain could lead to localized flash flooding. * WHAT...Flash Flooding caused by slow moving thunderstorms and repeating rounds of heavy rainfall. * WHERE...Portions of central, northern, and southern New Hampshire, including the following areas, in New Hampshire, Western And Central Hillsborough. In central New Hampshire, Belknap, Merrimack, Strafford and Sullivan. In northern New Hampshire, Northern Carroll, Northern Grafton, Southern Carroll and Southern Grafton. In southern New Hampshire, Cheshire, Eastern Hillsborough and Interior Rockingham. * WHEN...From noon EDT today through this evening. * IMPACTS...Excessive runoff may result in flooding of already swollen streams and other low-lying and flood-prone locations including urban areas. * ADDITIONAL DETAILS... - Repeating rounds of heavy rainfall could result in rainfall amounts around 3 inches through this evening. Recent wet conditions across central and southern New Hampshire are keeping streams running high, and soils wet. These areas in particular will be more vulnerable to flash flooding. However rainfall amounts exceeding 3 inches in a few hours could result in flooding for most areas regardless of antecedent conditions.

You should monitor the latest forecast and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flash flooding develop.


Flood Watch issued June 6 at 7:01AM EDT until June 7 at 12:00AM EDT by NWS Gray ME

Effective: Fri June 6, 2025, 7:01 AM
Expires: Fri June 6, 2025, 7:15 PM

Clusters of slow moving thunderstorms will bring a risk of flash flooding to portions of central and southern New Hampshire today. A nearby stationary front will support storm development this afternoon, with rainfall rates up to 2 inches an hour. These slow moving and repeating rounds of heavy rain could lead to localized flash flooding. * WHAT...Flash Flooding caused by slow moving thunderstorms and repeating rounds of heavy rainfall. * WHERE...Portions of central, northern, and southern New Hampshire, including the following areas, in New Hampshire, Western And Central Hillsborough. In central New Hampshire, Belknap, Merrimack, Strafford and Sullivan. In northern New Hampshire, Northern Carroll, Northern Grafton, Southern Carroll and Southern Grafton. In southern New Hampshire, Cheshire, Eastern Hillsborough and Interior Rockingham. * WHEN...From noon EDT today through this evening. * IMPACTS...Excessive runoff may result in flooding of already swollen streams and other low-lying and flood-prone locations including urban areas. * ADDITIONAL DETAILS... - Repeating rounds of heavy rainfall could result in rainfall amounts around 3 inches through this evening. Recent wet conditions across central and southern New Hampshire are keeping streams running high, and soils wet. These areas in particular will be more vulnerable to flash flooding. However rainfall amounts exceeding 3 inches in a few hours could result in flooding for most areas regardless of antecedent conditions.

You should monitor the latest forecast and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flash flooding develop.


Flood Watch issued June 6 at 7:01AM EDT until June 7 at 12:00AM EDT by NWS Gray ME

Effective: Fri June 6, 2025, 7:01 AM
Expires: Fri June 6, 2025, 7:15 PM

Clusters of slow moving thunderstorms will bring a risk of flash flooding to portions of central and southern New Hampshire today. A nearby stationary front will support storm development this afternoon, with rainfall rates up to 2 inches an hour. These slow moving and repeating rounds of heavy rain could lead to localized flash flooding. * WHAT...Flash Flooding caused by slow moving thunderstorms and repeating rounds of heavy rainfall. * WHERE...Portions of central, northern, and southern New Hampshire, including the following areas, in New Hampshire, Western And Central Hillsborough. In central New Hampshire, Belknap, Merrimack, Strafford and Sullivan. In northern New Hampshire, Northern Carroll, Northern Grafton, Southern Carroll and Southern Grafton. In southern New Hampshire, Cheshire, Eastern Hillsborough and Interior Rockingham. * WHEN...From noon EDT today through this evening. * IMPACTS...Excessive runoff may result in flooding of already swollen streams and other low-lying and flood-prone locations including urban areas. * ADDITIONAL DETAILS... - Repeating rounds of heavy rainfall could result in rainfall amounts around 3 inches through this evening. Recent wet conditions across central and southern New Hampshire are keeping streams running high, and soils wet. These areas in particular will be more vulnerable to flash flooding. However rainfall amounts exceeding 3 inches in a few hours could result in flooding for most areas regardless of antecedent conditions.

You should monitor the latest forecast and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flash flooding develop.


Friday, June 6, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 57.2°F
Average Humidity: 96%
Chance of Rain: 79%
Wind: 8.1 mph
UV Index: 1.2

Air Quality

AQI: 2 - Moderate
PM2.5: 23.64 μg/m3
PM10: 24.35 μg/m3
Carbon Monoxide: 524.81 μg/m3
Nitrogen Dioxide: 11.32 μg/m3
Sulphur Dioxide: 2.14 μg/m3
Ozone: 84.76 μg/m3

Astronomical

Sunrise: 5:00 AM
Sun Transit: 12:39 AM
Sunset: 8:20 PM
Daylight: 15 hrs 20 mins
Moonrise: 4:06 PM
Moon Transit: 9:23 PM
Moonset: 2:13 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 80.3%

Best Times for Fishing or Hunting

Major Periods

11:15 AM - 1:45 PM
8:53 PM - 11:23 PM

Minor Periods

3:36 PM - 5:06 PM
1:43 AM - 3:13 AM

Action Rating: 2 out of 5

Saturday, June 7, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 53.6°F
Average Humidity: 97%
Chance of Rain: 88%
Wind: 9.8 mph
UV Index: 0.3

Air Quality

AQI: 1 - Good
PM2.5: 10.93 μg/m3
PM10: 12.74 μg/m3
Carbon Monoxide: 398.34 μg/m3
Nitrogen Dioxide: 13.74 μg/m3
Sulphur Dioxide: 0.94 μg/m3
Ozone: 64.6 μg/m3

Astronomical

Sunrise: 5:00 AM
Sun Transit: 12:39 AM
Sunset: 8:21 PM
Daylight: 15 hrs 21 mins
Moonrise: 5:10 PM
Moon Transit: 10:06 PM
Moonset: 2:32 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 88.5%

Best Times for Fishing or Hunting

Major Periods

11:57 AM - 2:27 PM
12:00 AM - 12:00 AM

Minor Periods

4:40 PM - 6:10 PM
2:02 AM - 3:32 AM

Action Rating: 2 out of 5

Sunday, June 8, 2025

Weather Forecast

Conditions: Cloudy
Average Temperature: 57.1°F
Average Humidity: 93%
Chance of Rain: 0%
Wind: 10.1 mph
UV Index: 1.9

Air Quality

AQI: 3 - Unhealthy for Sensitive Groups
PM2.5: 42.81 μg/m3
PM10: 44.67 μg/m3
Carbon Monoxide: 403.52 μg/m3
Nitrogen Dioxide: 9.72 μg/m3
Sulphur Dioxide: 1.42 μg/m3
Ozone: 75.16 μg/m3

Astronomical

Sunrise: 5:00 AM
Sun Transit: 12:40 AM
Sunset: 8:21 PM
Daylight: 15 hrs 22 mins
Moonrise: 6:16 PM
Moon Transit: 10:51 PM
Moonset: 2:54 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 94.7%

Best Times for Fishing or Hunting

Major Periods

12:41 AM - 3:11 PM
12:00 AM - 12:00 AM

Minor Periods

5:46 PM - 7:16 PM
2:24 AM - 3:54 AM

Action Rating: 2 out of 5

Monday, June 9, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 54.2°F
Average Humidity: 96%
Chance of Rain: 87%
Wind: 10.3 mph
UV Index: 2.1

Air Quality

AQI: 2 - Moderate
PM2.5: 31.92 μg/m3
PM10: 34.9 μg/m3
Carbon Monoxide: 377.84 μg/m3
Nitrogen Dioxide: 7.67 μg/m3
Sulphur Dioxide: 1.08 μg/m3
Ozone: 77.28 μg/m3

Astronomical

Sunrise: 4:59 AM
Sun Transit: 12:40 AM
Sunset: 8:22 PM
Daylight: 15 hrs 22 mins
Moonrise: 7:21 PM
Moon Transit: 11:40 PM
Moonset: 3:20 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 98.6%

Best Times for Fishing or Hunting

Major Periods

1:30 PM - 4:00 PM
12:00 AM - 12:00 AM

Minor Periods

6:51 PM - 8:21 PM
2:50 AM - 4:20 AM

Action Rating: 3 out of 5

Tuesday, June 10, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 57.1°F
Average Humidity: 94%
Chance of Rain: 89%
Wind: 8.7 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 9.35 μg/m3
PM10: 11.97 μg/m3
Carbon Monoxide: 390.49 μg/m3
Nitrogen Dioxide: 4.7 μg/m3
Sulphur Dioxide: 1.08 μg/m3
Ozone: 77.92 μg/m3

Astronomical

Sunrise: 4:59 AM
Sun Transit: 12:40 AM
Sunset: 8:22 PM
Daylight: 15 hrs 23 mins
Moonrise: 8:25 PM
Moon Transit: 12:00 AM
Moonset: 3:54 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:19 PM - 4:49 PM

Minor Periods

7:55 PM - 9:25 PM
3:24 AM - 4:54 AM

Action Rating: 5 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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