Lake Chelan Water Temperature

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Washington State’s Lake Chelan is located in the North Cascades National Forest. Surrounded by mountains, forest and acres of vineyards, and boasting 300 days of sunshine per year, Lake Chelan is one of the most beautiful vacation spots in the region.

Lake Chelan is a village close to Lake Chelan. August is the month with the warmest water temperature at 73.6°F / 23.1°C. The coolest month is February with an avg. water temperature of 33.1°F / 0.6°C. February is the sunniest at 0in / 0mm and December the wettest month with 3.6in / 91.3mm. The average air temperature is around 72°F / 22.2°C, July is the hottest month in a year. December is the coolest with 28.2°F / -2.1°C average air temperature. cold steppe climates would be the climate here. June, July, August, September would be the best time to visit.

Lake Chelan Summary

Description	Value
Warmest Month Water Temperature:	August with 73.6°F / 23.1°C
Coldest Month Water Temperature:	February with 33.1°F / 0.6°C
Warmest Month Air Temperature:	July with 72°F / 22.2°C
Coldest Month Air Temperature:	December with 28.2°F / -2.1°C
Wettest Month:	December with 3.6in / 91.3mm
Driest Month:	February with 0in / 0mm
Highest Humidity	January with 86.2%
Lowest Humidity	July with 38.9%
Best Time to Visit:	June, July, August, September
Climate Classification	cold steppe climates

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Lake Chelan water temperature by month

°F

Lake Chelan water temperature by month

	Max. Water Temperature (°F)	ø. Water Temperature (°F)	Min. Water Temperature (°F)
January	36.1	34.3	33.3
February	33.6	33.3	33.1
March	37.2	34.9	33.3
April	43	39.7	37
May	55.6	48.7	43
June	66.9	59.4	54.3
July	74.7	68.5	63.5
August	75.4	71.2	67.3
September	70.3	65.7	61.2
October	62.6	56.1	50.5
November	50.5	45.9	41.9
December	41.7	39	36.5

°C

Lake Chelan water temperature by month

	Max. Water Temperature (°C)	ø. Water Temperature (°C)	Min. Water Temperature (°C)
January	2.3	1.3	0.7
February	0.9	0.7	0.6
March	2.9	1.6	0.7
April	6.1	4.3	2.8
May	13.1	9.3	6.1
June	19.4	15.2	12.4
July	23.7	20.3	17.5
August	24.1	21.8	19.6
September	21.3	18.7	16.2
October	17	13.4	10.3
November	10.3	7.7	5.5
December	5.4	3.9	2.5

The highest water temperature will be reached in August with around 73.6°F / 23.1°C. The lowest in February with an average water temperature of 33.1°F / 0.6°C.

Water temperatures vary greatly throughout the year in Lake Chelan with a low of 41F in January and February which rises to approximately 50F in May. Seasonal highs of around 72.5 in late July, through August and September. Sailing conditions are perfect and jet skis and scuba diving gear can be easily hired locally. The Manson vineyards at the northern end of Lake Chelan make for a great day trip and kids will adore the Slidewaters water slides in Chelan.

In winter the nearby skiing is world class, while anglers flock to Lake Chelan in spring and autumn for the abundance of cold water fish species.

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Lake Chelan 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. 20	Broken clouds	40 °F 35°F	5 °C 1°C	1mph (1km/h) east-northeast	0in (0mm) 0 %	90%
Dec. 21	Light shower rain	39 °F 34°F	4 °C 1°C	1mph (1km/h) southeast	0in (3mm) 55 %	92%
Dec. 22	Mix snow/rain	39 °F 33°F	4 °C 0°C	1mph (1km/h) east-southeast	0in (3mm) 60 %	89%
Dec. 23	Freezing rain	40 °F 32°F	4 °C 0°C	1mph (1km/h) south-southeast	0in (3mm) 60 %	89%
Dec. 24	Mix snow/rain	40 °F 34°F	4 °C 1°C	1mph (2km/h) south	0in (6mm) 75 %	88%
Dec. 25	Mix snow/rain	37 °F 32°F	3 °C -0°C	1mph (1km/h) south-southeast	0in (1mm) 30 %	88%
Dec. 26	Heavy snow	29 °F 23°F	-2 °C -5°C	1mph (1km/h) south-southeast	1in (13mm) 100 %	97%

+9-day forecast

Date	Weather	Max. F Min. F	Max. C Min. C	Windspeed Windir.	Precip. Rainrisk	Rel. Humidity
Dec. 27	Snow	29 °F 22°F	-2 °C -5°C	1mph (1km/h) south	0in (7mm) 95 %	97%
Dec. 28	Snow	32 °F 22°F	0 °C -6°C	1mph (1km/h) south	0in (9mm) 95 %	98%
Dec. 29	Heavy snow	28 °F 20°F	-2 °C -7°C	1mph (2km/h) south	1in (14mm) 100 %	92%
Dec. 30	Snow	27 °F 24°F	-3 °C -5°C	1mph (2km/h) west	0in (4mm) 95 %	93%
Dec. 31	Broken clouds	22 °F 18°F	-5 °C -8°C	2mph (3km/h) west-northwest	0in (0mm) 0 %	87%
Jan. 01	Flurries	17 °F 13°F	-8 °C -10°C	1mph (2km/h) northwest	0in (0mm) 20 %	89%
Jan. 02	Broken clouds	14 °F 10°F	-10 °C -12°C	1mph (2km/h) north-northwest	0in (0mm) 0 %	91%
Jan. 03	Scattered clouds	14 °F 10°F	-10 °C -13°C	1mph (2km/h) northwest	0in (0mm) 0 %	88%
Jan. 04	Broken clouds	13 °F 9°F	-11 °C -13°C	1mph (2km/h) southwest	0in (0mm) 0 %	87%

Lake Chelan weather by month / climate table

°F

	Max. Temperature °F	ø. Temperature °F	Min. Temperature (°F)	Precip. (in)	Rainy Days (d)	Rel. Humidity (%)
January	36.3	28.2	21.2	1.9	1	86.2%
February	38.8	31.5	25.7	0	1	78.1%
March	50.2	37.8	27.5	0.4	0	71.6%
April	62.4	46.2	33.3	0.1	0	59.9%
May	71.8	56.3	40.6	0.1	0	50.3%
June	81.9	63.3	47.3	0	0	45.6%
July	88.7	72	55	0	0	38.9%
August	88.3	71.8	56.3	0	0	41.2%
September	78.8	62.4	48.7	0	0	50.2%
October	67.3	49.3	36.7	0	0	66.8%
November	48	36.3	26.4	1	1	81.2%
December	36	28.2	22.8	3.6	3	85.4%

°C

	Max. Temperature °C	ø. Temperature °C	Min. Temperature (°C)	Precip. (mm)	Rainy Days (d)	Rel. Humidity (%)
January	2.4	-2.1	-6	49.2	1	86.2%
February	3.8	-0.3	-3.5	0	1	78.1%
March	10.1	3.2	-2.5	10.8	0	71.6%
April	16.9	7.9	0.7	1.4	0	59.9%
May	22.1	13.5	4.8	3.5	0	50.3%
June	27.7	17.4	8.5	0	0	45.6%
July	31.5	22.2	12.8	0	0	38.9%
August	31.3	22.1	13.5	0	0	41.2%
September	26	16.9	9.3	0	0	50.2%
October	19.6	9.6	2.6	0	0	66.8%
November	8.9	2.4	-3.1	26.2	1	81.2%
December	2.2	-2.1	-5.1	91.3	3	85.4%

February is the driest at 0in / 0mm and December the wettest month with 3.6in / 91.3mm. With an average temperature of 72°F / 22.2°C, July is the warmest month in a year. December is the coldest with 28.2°F / -2.1°C average temperature.

Best Time to Visit Lake Chelan

Lake Chelan is accessible from anywhere in the world with flights to Seattle International Airport(SEA) or Spokane International Airport(GEG). The drive to Lake Chelan is a scenic road trip and the lake lies on US Highway 97. However, there are excellent Amtrak rail links from Seattle and Spokane to nearby Wenatchee where local transport is readily available to the town of Chelan.

May to late September are the busiest times, and swimming, sailing and sightseeing are the big attractions, while cycling and hiking in the spectacular surrounding countryside are also popular. Fed by glaciers, Washington State’s biggest lake is 50.5 miles long and 1.5 miles wide. At 1486ft deep, Lake Chelan is the third deepest lake in the US and 26th deepest in the world.

During summer, temperatures are approximately 71F in May to 78F in June and September, with annual highs of 86-87F in July and August earning Lake Chelan its name as Washington’s summer playground.

Activities around Lake Chelan

With gorgeous beaches and warm waters in summer you’ll enjoy a relaxing break, but be sure to fetch sunscreen to avoid burning from sunlight reflected by the lake. Bring waterproof clothing in spring or autumn as weather in the Lake Chelan area can change quickly and layers are often the best option.

Activities & POI in Lake Chelan

Type of Activity	List
Beach	Minneapolis Beach
Marina for Sailing, Boat adventures, fishing	Lakeshore Marina, Manson Bay Marina
Golf Course	Lake Chelan Golf Course
Caravan Site	Lakeshore RV Park, Beebe Bridge Park Campground

Picture Copyright Flick CC BY 2.0: teresatrimm

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