Friday Harbor Water Temperature

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Friday Harbor is a village close to Salish Sea. August is the month with the highest water temperature at 54.7°F / 12.6°C.
The coldest month is February with an average water temperature of 45.7°F / 7.6°C.
February is the driest at 0in / 0mm and March the wettest month with 1.6in / 41.8mm.
With an average air temperature of 60.1°F / 15.6°C, August is the warmest month in a year. December is the coldest with 41.9°F / 5.5°C average air temperature.
The Climate is described as temperate climate with warm and dry summer. Best time to Visit would be in June, July, August, September.

Friday Harbor Summary

Description	Value
Current water temperature	/
Warmest Month Water Temperature:	August with 54.7°F / 12.6°C
Coldest Month Water Temperature:	February with 45.7°F / 7.6°C
Warmest Month Air Temperature:	August with 60.1°F / 15.6°C
Coldest Month Air Temperature:	December with 41.9°F / 5.5°C
Wettest Month:	March with 1.6in / 41.8mm
Driest Month:	February with 0in / 0mm
Highest Humidity	October with 82.4%
Lowest Humidity	February with 77.2%
Best Time to Visit:	June, July, August, September
Climate Classification	temperate climate with warm and dry summer

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Friday Harbor water temperature by month

°F

Salish Sea water temperature by month

	Max. Water Temperature (°F)	ø. Water Temperature (°F)	Min. Water Temperature (°F)
January	46.2	45.9	45.7
February	45.9	45.7	45.7
March	46.8	46.2	45.9
April	48.6	47.5	46.8
May	50.7	49.8	48.6
June	53.2	52	50.7
July	54.7	54	53.1
August	55	54.7	53.8
September	54.5	53.2	52
October	52	50.7	49.6
November	49.6	48.6	47.5
December	47.5	46.9	46.2

°C

Salish Sea water temperature by month

	Max. Water Temperature (°C)	ø. Water Temperature (°C)	Min. Water Temperature (°C)
January	7.9	7.7	7.6
February	7.7	7.6	7.6
March	8.2	7.9	7.7
April	9.2	8.6	8.2
May	10.4	9.9	9.2
June	11.8	11.1	10.4
July	12.6	12.2	11.7
August	12.8	12.6	12.1
September	12.5	11.8	11.1
October	11.1	10.4	9.8
November	9.8	9.2	8.6
December	8.6	8.3	7.9

The hottest water temperature typically reached in August with around 54.7°F / 12.6°C. The coldest in February with an average water temperature of 45.7°F / 7.6°C.

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Friday Harbor 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
Dec. 01	Scattered clouds	44 °F 41°F	7 °C 5°C	1mph (1km/h) west-northwest	0in (0mm) 0 %	78%
Dec. 02	Broken clouds	48 °F 39°F	9 °C 4°C	0mph (0km/h) east-southeast	0in (0mm) 0 %	83%
Dec. 03	Broken clouds	49 °F 38°F	10 °C 3°C	0mph (0km/h) south-southwest	0in (0mm) 0 %	79%
Dec. 04	Overcast clouds	49 °F 40°F	10 °C 4°C	0mph (0km/h) east	0in (0mm) 0 %	77%
Dec. 05	Light shower rain	51 °F 42°F	11 °C 6°C	1mph (2km/h) east-southeast	0in (3mm) 55 %	81%
Dec. 06	Light rain	54 °F 46°F	12 °C 8°C	1mph (2km/h) southeast	0in (8mm) 80 %	84%
Dec. 07	Heavy rain	50 °F 46°F	10 °C 8°C	6mph (10km/h) west	1in (17mm) 90 %	88%

+9-day forecast

Date	Weather	Max. F Min. F	Max. C Min. C	Windspeed Windir.	Precip. Rainrisk	Rel. Humidity
Dec. 08	Broken clouds	48 °F 45°F	9 °C 7°C	5mph (7km/h) south-southwest	0in (1mm) 30 %	73%
Dec. 09	Overcast clouds	46 °F 43°F	8 °C 6°C	4mph (6km/h) southeast	0in (0mm) 20 %	84%
Dec. 10	Broken clouds	47 °F 44°F	8 °C 7°C	1mph (2km/h) west-southwest	0in (0mm) 20 %	78%
Dec. 11	Overcast clouds	47 °F 43°F	8 °C 6°C	3mph (4km/h) southeast	0in (0mm) 20 %	79%
Dec. 12	Heavy rain	50 °F 44°F	10 °C 7°C	4mph (6km/h) south	1in (26mm) 95 %	89%
Dec. 13	Light shower rain	49 °F 46°F	9 °C 8°C	2mph (4km/h) west-northwest	0in (4mm) 65 %	85%
Dec. 14	Overcast clouds	45 °F 42°F	7 °C 6°C	2mph (3km/h) south-southeast	0in (1mm) 25 %	82%
Dec. 15	Moderate rain	42 °F 39°F	6 °C 4°C	4mph (7km/h) north-northwest	0in (11mm) 85 %	75%
Dec. 16	Overcast clouds	37 °F 35°F	3 °C 2°C	1mph (2km/h) south	0in (0mm) 15 %	60%

Friday Harbor weather by month / climate table

°F

	Max. Temperature °F	ø. Temperature °F	Min. Temperature (°F)	Precip. (in)	Rainy Days (d)	Rel. Humidity (%)
January	45.9	42.1	38.3	0.9	14	81.3%
February	46.8	42.1	37.4	0	7	77.2%
March	50.4	44.4	39.4	1.6	14	78.2%
April	54.3	47.5	41.4	0.6	5	78%
May	58.3	51.8	46.4	0	0	80.2%
June	61.9	55.6	50.9	0.2	0	80.1%
July	65.1	59.4	54.5	0	0	80.2%
August	65.7	60.1	55.6	0	0	80.9%
September	63.5	57.4	52.2	0	0	82.2%
October	57.4	51.6	46.6	0.6	0	82.4%
November	51.4	45.9	38.8	0.3	16	80.4%
December	45.9	41.9	38.7	1.6	14	79.4%

°C

	Max. Temperature °C	ø. Temperature °C	Min. Temperature (°C)	Precip. (mm)	Rainy Days (d)	Rel. Humidity (%)
January	7.7	5.6	3.5	22.3	14	81.3%
February	8.2	5.6	3	0	7	77.2%
March	10.2	6.9	4.1	41.8	14	78.2%
April	12.4	8.6	5.2	14.9	5	78%
May	14.6	11	8	0	0	80.2%
June	16.6	13.1	10.5	5.6	0	80.1%
July	18.4	15.2	12.5	0	0	80.2%
August	18.7	15.6	13.1	0	0	80.9%
September	17.5	14.1	11.2	0	0	82.2%
October	14.1	10.9	8.1	15.6	0	82.4%
November	10.8	7.7	3.8	7.6	16	80.4%
December	7.7	5.5	3.7	40.4	14	79.4%

February is the most draught at 0in / 0mm and March the month with the most rain around 1.6in / 41.8mm. The avg. temperature is around 60.1°F / 15.6°C, August is the hottest month in a year. December is the coolest with 41.9°F / 5.5°C avg. temperature.

Activities & POI in Friday Harbor

Type of Activity	List
Beach	South Beach, Jackson Beach, Kimple Beach, Fourth of July Beach, Nawalagwis (Magic Beach), Cottonwood Cove, Haida Canoe Cove, Madrona Beach, The Landing
Marina for Sailing, Boat adventures, fishing	Roche Harbor, Deer Harbor Boatworks, Port of Friday Harbor, Shipyard cove, Westsound Marina, Cayou Quay Marina, Deer Harbor Marina
Attraction	American Camp, Land Bank, Western Prince Whale Watching, Historic blockhouse, Historic hospital, John S. McMillan Memorial Mausoleum, Crystal Seas Kayaking, Orca Survey Outreach & Education Center, Krystal Acres Alpaca Farm

Salish Sea