Portland Water Temperature
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Portland is a city close to Gulf of Maine.
August is the month with the highest water temperature at 63.5°F / 17.5°C.
The coldest month is March with an average water temperature of 37.2°F / 2.9°C.
October is the driest at 0in / 0mm and January the wettest month with 1.7in / 43.1mm.
With an average air temperature of 69.3°F / 20.7°C, July is the warmest month in a year. January is the coldest with 24.1°F / -4.4°C average air temperature.
The Climate is described as Warm-summer humid continental climate. Best time to Visit would be in June, July, August, September.
The coldest month is March with an average water temperature of 37.2°F / 2.9°C.
October is the driest at 0in / 0mm and January the wettest month with 1.7in / 43.1mm.
With an average air temperature of 69.3°F / 20.7°C, July is the warmest month in a year. January is the coldest with 24.1°F / -4.4°C average air temperature.
The Climate is described as Warm-summer humid continental climate. Best time to Visit would be in June, July, August, September.
Portland Summary
| Description | Value |
|---|---|
| Current water temperature | / |
| Warmest Month Water Temperature: | August with 63.5°F / 17.5°C |
| Coldest Month Water Temperature: | March with 37.2°F / 2.9°C |
| Warmest Month Air Temperature: | July with 69.3°F / 20.7°C |
| Coldest Month Air Temperature: | January with 24.1°F / -4.4°C |
| Wettest Month: | January with 1.7in / 43.1mm |
| Driest Month: | October with 0in / 0mm |
| Highest Humidity | June with 76% |
| Lowest Humidity | April with 67.6% |
| Best Time to Visit: | June, July, August, September |
| Climate Classification | Warm-summer humid continental climate |
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Portland water temperature by month
Gulf of Maine water temperature by month
| Max. Water
Temperature (°F) |
ø. Water
Temperature (°F) |
Min. Water
Temperature (°F) |
|
|---|---|---|---|
|
January |
42.6 | 40.8 | 38.8 |
|
February |
38.7 | 37.8 | 37.2 |
|
March |
38.5 | 37.4 | 36.9 |
|
April |
44.1 | 40.8 | 38.5 |
|
May |
51.3 | 47.5 | 44.1 |
|
June |
58.6 | 55 | 51.3 |
|
July |
63.5 | 61.3 | 58.1 |
|
August |
64.2 | 63.3 | 61.9 |
|
September |
62.6 | 60.1 | 57.6 |
|
October |
57.4 | 54.1 | 50.7 |
|
November |
50.9 | 48.7 | 46.8 |
|
December |
46.8 | 44.6 | 42.6 |
Gulf of Maine water temperature by month
| Max. Water
Temperature (°C) |
ø. Water
Temperature (°C) |
Min. Water
Temperature (°C) |
|
|---|---|---|---|
|
January |
5.9 | 4.9 | 3.8 |
|
February |
3.7 | 3.2 | 2.9 |
|
March |
3.6 | 3 | 2.7 |
|
April |
6.7 | 4.9 | 3.6 |
|
May |
10.7 | 8.6 | 6.7 |
|
June |
14.8 | 12.8 | 10.7 |
|
July |
17.5 | 16.3 | 14.5 |
|
August |
17.9 | 17.4 | 16.6 |
|
September |
17 | 15.6 | 14.2 |
|
October |
14.1 | 12.3 | 10.4 |
|
November |
10.5 | 9.3 | 8.2 |
|
December |
8.2 | 7 | 5.9 |
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Portland weather today & 14-day weather forecast
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Portland weather by month / climate table
Max. Temperature °F | ø. Temperature °F | Min. Temperature (°F) |
Precip. (in) |
Rainy Days (d) |
Rel. Humidity (%) |
|
|---|---|---|---|---|---|---|
|
January |
35.8 | 24.1 | 12.6 | 1.7 | 1 | 69.8% |
|
February |
36 | 26.1 | 15.3 | 1.5 | 0 | 67.7% |
|
March |
45.7 | 32.7 | 21.6 | 0.1 | 1 | 67.8% |
|
April |
55 | 43.2 | 32.4 | 0.6 | 3 | 67.6% |
|
May |
66.2 | 53.1 | 42.1 | 0.6 | 1 | 73% |
|
June |
74.1 | 62.1 | 52 | 0.4 | 1 | 76% |
|
July |
77.2 | 69.3 | 62.2 | 0.4 | 0 | 75.3% |
|
August |
76.5 | 68.9 | 61.7 | 0.6 | 0 | 76% |
|
September |
73.4 | 63 | 54.9 | 0.2 | 0 | 75.9% |
|
October |
62.4 | 51.6 | 41 | 0 | 0 | 73.2% |
|
November |
54.9 | 41.7 | 32.7 | 0.3 | 0 | 71.5% |
|
December |
43 | 32 | 22.5 | 1.5 | 1 | 70.1% |
Max. Temperature °C | ø. Temperature °C | Min. Temperature (°C) |
Precip. (mm) |
Rainy Days (d) |
Rel. Humidity (%) |
|
|---|---|---|---|---|---|---|
|
January |
2.1 | -4.4 | -10.8 | 43.1 | 1 | 69.8% |
|
February |
2.2 | -3.3 | -9.3 | 36.9 | 0 | 67.7% |
|
March |
7.6 | 0.4 | -5.8 | 3.8 | 1 | 67.8% |
|
April |
12.8 | 6.2 | 0.2 | 16.2 | 3 | 67.6% |
|
May |
19 | 11.7 | 5.6 | 16.4 | 1 | 73% |
|
June |
23.4 | 16.7 | 11.1 | 9.1 | 1 | 76% |
|
July |
25.1 | 20.7 | 16.8 | 9 | 0 | 75.3% |
|
August |
24.7 | 20.5 | 16.5 | 16.4 | 0 | 76% |
|
September |
23 | 17.2 | 12.7 | 5.6 | 0 | 75.9% |
|
October |
16.9 | 10.9 | 5 | 0 | 0 | 73.2% |
|
November |
12.7 | 5.4 | 0.4 | 8 | 0 | 71.5% |
|
December |
6.1 | -0 | -5.3 | 38.3 | 1 | 70.1% |
October is the month with the lowest rain of 0in / 0mm and January with the highest precipitation in a year with 1.7in / 43.1mm.
The avg. temperature is around 69.3°F / 20.7°C, July is the month with the highest temperature. January is the coolest with 24.1°F / -4.4°C average temperature.
Activities & POI in Portland
| Type of Activity | List |
|---|---|
| Beach | East End Beach |
| Attraction | Portland Discovery Land and Sea Tours, East End Beach, Portland Observatory |
| Golf Course | South Portland Golf Course, Portland Country Club |
