Deer Isle Water Temperature

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

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

°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

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.

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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
Nov. 26	Moderate rain	53 °F 45°F	12 °C 7°C	2mph (3km/h) south	1in (15mm) 90 %	98%
Nov. 27	Broken clouds	47 °F 38°F	8 °C 4°C	3mph (6km/h) west-southwest	0in (1mm) 20 %	76%
Nov. 28	Broken clouds	42 °F 32°F	6 °C 0°C	4mph (7km/h) west-southwest	0in (0mm) 0 %	64%
Nov. 29	Scattered clouds	39 °F 29°F	4 °C -2°C	5mph (7km/h) west-northwest	0in (0mm) 0 %	59%
Nov. 30	Mix snow/rain	45 °F 28°F	7 °C -2°C	4mph (6km/h) south-southwest	0in (3mm) 65 %	70%
Dec. 01	Moderate rain	47 °F 33°F	9 °C 1°C	4mph (6km/h) southwest	0in (12mm) 85 %	82%
Dec. 02	Light snow	34 °F 24°F	1 °C -5°C	3mph (4km/h) south	0in (3mm) 85 %	60%

+9-day forecast

Date	Weather	Max. F Min. F	Max. C Min. C	Windspeed Windir.	Precip. Rainrisk	Rel. Humidity
Dec. 03	Snow	28 °F 21°F	-2 °C -6°C	2mph (4km/h) southwest	0in (4mm) 95 %	74%
Dec. 04	Scattered clouds	27 °F 11°F	-3 °C -11°C	4mph (7km/h) west-northwest	0in (0mm) 0 %	61%
Dec. 05	Scattered clouds	40 °F 13°F	4 °C -11°C	3mph (5km/h) west-southwest	0in (0mm) 0 %	53%
Dec. 06	Light shower rain	39 °F 36°F	4 °C 2°C	2mph (3km/h) east-northeast	0in (4mm) 65 %	98%
Dec. 07	Mix snow/rain	33 °F 27°F	1 °C -3°C	3mph (6km/h) northwest	1in (20mm) 100 %	87%
Dec. 08	Light shower rain	33 °F 24°F	1 °C -4°C	2mph (3km/h) west-northwest	0in (4mm) 80 %	80%
Dec. 09	Flurries	40 °F 21°F	4 °C -6°C	4mph (7km/h) northwest	0in (0mm) 20 %	71%
Dec. 10	Light shower rain	48 °F 38°F	9 °C 3°C	7mph (12km/h) southwest	0in (4mm) 65 %	82%
Dec. 11	Light rain	40 °F 29°F	4 °C -1°C	4mph (6km/h) south	0in (7mm) 80 %	84%

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 most draught at 0.1in / 3.3mm and January the month with the most rain around 3.2in / 82mm. The avg. temperature is around 64.9°F / 18.3°C, August is the hottest month in a year. January is the coolest with 23.4°F / -4.8°C avg. 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