Deer Isle Water Temperature

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Deer Isle is a village close to Gulf of Maine. Warm-summer humid continental climate would be the climate here. August is the month with the highest water temperature at 58.3°F / 14.6°C. The month with the lowest is March with an average water temperature of 36°F / 2.2°C. The avg. air temperature is around 64.9°F / 18.3°C, August is the month with the highest temperature. January is the coolest with 23.4°F / -4.8°C average air temperature. September is the month with the min. precipitation of 0.1in / 3.3mm and January with the max. precipitation in a year with 3.2in / 82mm. If you plan to visit this place, the month June, July, August, September would be the best time.

Deer Isle Summary

Description Value
Current water temperature /
Warmest Month Water Temperature: August with 58.3°F / 14.6°C
Coldest Month Water Temperature: March with 36°F / 2.2°C
Warmest Month Air Temperature: August with 64.9°F / 18.3°C
Coldest Month Air Temperature: January with 23.4°F / -4.8°C
Wettest Month: January with 3.2in / 82mm
Driest Month: September with 0.1in / 3.3mm
Highest Humidity July with 81.7%
Lowest Humidity March with 68.9%
Best Time to Visit: June, July, August, September
Climate Classification Warm-summer humid continental climate

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Deer Isle water temperature by month

Gulf of Maine water temperature by month

Max. Water

Temperature (°F)

ø. Water

Temperature (°F)

Min. Water

Temperature (°F)

January

41.7 39.6 37.6

February

37.6 36.7 36

March

36.9 36.1 35.6

April

41.9 39 36.9

May

48.7 45.1 41.9

June

53.8 51.1 48.6

July

58.1 56.3 53.8

August

58.6 58.1 57.6

September

58.5 56.8 55.6

October

55.4 53.2 51.3

November

51.3 49.1 46.4

December

46.6 44.2 41.9

Gulf of Maine water temperature by month

Max. Water

Temperature (°C)

ø. Water

Temperature (°C)

Min. Water

Temperature (°C)

January

5.4 4.2 3.1

February

3.1 2.6 2.2

March

2.7 2.3 2

April

5.5 3.9 2.7

May

9.3 7.3 5.5

June

12.1 10.6 9.2

July

14.5 13.5 12.1

August

14.8 14.5 14.2

September

14.7 13.8 13.1

October

13 11.8 10.7

November

10.7 9.5 8

December

8.1 6.8 5.5
The warmest water temperature are in August with around 58.3°F / 14.6°C. The coldest in March with an average water temperature of 36°F / 2.2°C.

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Deer Isle weather today & 14-day weather forecast

Date
Weather
Max. F
Min. F
Max. C
Min. C
Windspeed
Windir.
Precip.
Rainrisk
Rel. Humidity
Nov. 04
Overcast clouds
51 °F
42°F
11 °C
6°C
2mph (3km/h)
south
0in (0mm)
0 %
71%
Nov. 05
Broken clouds
59 °F
46°F
15 °C
8°C
4mph (6km/h)
southwest
0in (2mm)
45 %
91%
Nov. 06
Broken clouds
65 °F
53°F
18 °C
12°C
4mph (6km/h)
west-southwest
0in (0mm)
0 %
86%
Nov. 07
Scattered clouds
59 °F
42°F
15 °C
5°C
2mph (4km/h)
northwest
0in (0mm)
0 %
76%
Nov. 08
Scattered clouds
55 °F
39°F
13 °C
4°C
3mph (5km/h)
west-northwest
0in (0mm)
0 %
68%
Nov. 09
Few clouds
52 °F
39°F
11 °C
4°C
3mph (5km/h)
northwest
0in (0mm)
0 %
61%
Nov. 10
Scattered clouds
48 °F
34°F
9 °C
1°C
1mph (2km/h)
south-southeast
0in (0mm)
0 %
66%
Date
Weather
Max. F
Min. F
Max. C
Min. C
Windspeed
Windir.
Precip.
Rainrisk
Rel. Humidity
Nov. 11
Moderate rain
55 °F
47°F
13 °C
8°C
3mph (5km/h)
south
1in (13mm)
85 %
93%
Nov. 12
Overcast clouds
57 °F
47°F
14 °C
9°C
2mph (3km/h)
west
0in (0mm)
20 %
88%
Nov. 13
Mix snow/rain
46 °F
36°F
8 °C
2°C
4mph (6km/h)
northwest
1in (15mm)
90 %
91%
Nov. 14
Scattered clouds
51 °F
33°F
10 °C
1°C
2mph (3km/h)
west-southwest
0in (0mm)
0 %
82%
Nov. 15
Light shower rain
49 °F
39°F
9 °C
4°C
4mph (7km/h)
south-southwest
0in (4mm)
65 %
90%
Nov. 16
Few clouds
37 °F
36°F
3 °C
2°C
4mph (7km/h)
west
0in (0mm)
0 %
69%
Nov. 17
Scattered clouds
50 °F
32°F
10 °C
0°C
2mph (3km/h)
west-northwest
0in (0mm)
0 %
71%
Nov. 18
Light rain
55 °F
47°F
13 °C
8°C
3mph (4km/h)
south-southwest
0in (6mm)
75 %
93%
Nov. 19
Scattered clouds
45 °F
42°F
7 °C
5°C
2mph (4km/h)
west-northwest
0in (0mm)
15 %
76%

Deer Isle weather by month / climate table

Max.

Temperature

°F

ø.

Temperature

°F

Min.

Temperature

(°F)

Precip.

(in)

Rainy Days

(d)

Rel. Humidity

(%)

January

34.7 23.4 11.8 3.2 2 71%

February

34.2 25.2 14.9 1.5 0 68.9%

March

43 31.6 21 0.7 3 68.9%

April

51.1 41.2 32 1.2 3 70.5%

May

60.4 50.4 40.8 0.9 1 76.2%

June

67.3 58.3 50.2 0.2 1 80%

July

70.7 64.6 58.1 0.8 1 81.7%

August

70.9 64.9 59.5 0.7 0 81.3%

September

69.6 60.4 53.8 0.1 0 78.9%

October

60.1 50.7 40.5 0.4 0 73.9%

November

53.1 41.2 32.4 0.4 1 72.3%

December

42.1 31.1 21.4 2.2 1 71.1%

Max.

Temperature

°C

ø.

Temperature

°C

Min.

Temperature

(°C)

Precip.

(mm)

Rainy Days

(d)

Rel. Humidity

(%)

January

1.5 -4.8 -11.2 82 2 71%

February

1.2 -3.8 -9.5 39.3 0 68.9%

March

6.1 -0.2 -6.1 18.3 3 68.9%

April

10.6 5.1 0 30.8 3 70.5%

May

15.8 10.2 4.9 22.4 1 76.2%

June

19.6 14.6 10.1 4.8 1 80%

July

21.5 18.1 14.5 20 1 81.7%

August

21.6 18.3 15.3 17.2 0 81.3%

September

20.9 15.8 12.1 3.3 0 78.9%

October

15.6 10.4 4.7 9.8 0 73.9%

November

11.7 5.1 0.2 11 1 72.3%

December

5.6 -0.5 -5.9 55.4 1 71.1%
September is the month with the lowest rain of 0.1in / 3.3mm and January with the highest precipitation in a year with 3.2in / 82mm. The avg. temperature is around 64.9°F / 18.3°C, August is the month with the highest temperature. January is the coolest with 23.4°F / -4.8°C average temperature.

Activities & POI in Deer Isle

Type of Activity List
Beach The Brook Beach, Lighthouse Beach, Orchard Beach, Lily Pond Beach, Causeway Beach
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