Deer Isle Water Temperature

Deer Isle is a village close to Gulf of Maine. August is the month with the hottest water temperature at 58.3°F / 14.6°C. The coldest month is March with an ø water temperature of 36°F / 2.2°C. September is the month with the lowest precipitation of 0.1in / 3.3mm and January with the highest precipitation in a year with 3.2in / 82mm. 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. June, July, August, September would be the best time to visit. Warm-summer humid continental climate would be the climate here.

Deer Isle Summary

Description	Value
Current water temperature	44.6 °F / 7 °C
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

Deer Isle water temperature by month

°F

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

°C

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 hottest water temperature typically reached 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.

Deer Isle weather today & 14-day weather forecast

7-day weather forecast
+9-day forecast

7-day weather forecast

Date	Weather	Max. F Min. F	Max. C Min. C	Windspeed Windir.	Precip. Rainrisk	Rel. Humidity
Jan. 14	Overcast clouds	37 °F 34°F	3 °C 1°C	1mph (2km/h) west-northwest	0in (0mm) 0 %	73%
Jan. 15	Scattered clouds	38 °F 28°F	3 °C -2°C	2mph (4km/h) south	0in (0mm) 0 %	78%
Jan. 16	Heavy rain	44 °F 35°F	7 °C 2°C	6mph (10km/h) east-southeast	1in (28mm) 95 %	96%
Jan. 17	Overcast clouds	40 °F 34°F	5 °C 1°C	6mph (9km/h) west-southwest	0in (0mm) 35 %	77%
Jan. 18	Broken clouds	35 °F 26°F	2 °C -3°C	4mph (7km/h) west	0in (0mm) 10 %	66%
Jan. 19	Broken clouds	35 °F 22°F	2 °C -5°C	7mph (11km/h) west-northwest	0in (0mm) 0 %	59%
Jan. 20	Light snow	27 °F 22°F	-3 °C -5°C	4mph (6km/h) west	0in (5mm) 90 %	83%

+9-day forecast

Date	Weather	Max. F Min. F	Max. C Min. C	Windspeed Windir.	Precip. Rainrisk	Rel. Humidity
Jan. 21	Overcast clouds	33 °F 17°F	1 °C -9°C	2mph (4km/h) west-northwest	0in (0mm) 0 %	64%
Jan. 22	Broken clouds	32 °F 28°F	-0 °C -2°C	2mph (3km/h) west-northwest	0in (0mm) 0 %	62%
Jan. 23	Few clouds	25 °F 19°F	-4 °C -7°C	5mph (8km/h) north-northwest	0in (0mm) 0 %	59%
Jan. 24	Few clouds	14 °F 17°F	-10 °C -8°C	3mph (5km/h) northwest	0in (0mm) 0 %	60%
Jan. 25	Overcast clouds	15 °F 10°F	-10 °C -12°C	4mph (7km/h) south-southeast	0in (2mm) 65 %	70%
Jan. 26	Scattered clouds	16 °F 7°F	-9 °C -14°C	3mph (5km/h) northwest	0in (0mm) 0 %	58%
Jan. 27	Overcast clouds	8 °F 2°F	-13 °C -17°C	5mph (8km/h) north-northwest	0in (0mm) 20 %	73%
Jan. 28	Overcast clouds	15 °F 6°F	-10 °C -15°C	2mph (4km/h) south	0in (0mm) 10 %	72%
Jan. 29	Light snow	16 °F 8°F	-9 °C -13°C	6mph (9km/h) south-southeast	0in (0mm) 40 %	78%

Deer Isle weather by month / climate table

°F

	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%

°C

	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 driest at 0.1in / 3.3mm and January the wettest month with 3.2in / 82mm. With an average temperature of 64.9°F / 18.3°C, August is the warmest month in a year. January is the coldest 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

Gulf of Maine