Coupeville Water Temperature

Coupeville is a town close to Salish Sea. August is the month with the warmest water temperature at 54.1°F / 12.3°C. The coolest month is February with an avg. water temperature of 45.9°F / 7.7°C. August is the sunniest at 0in / 0mm and March the wettest month with 3.6in / 91.1mm. The average air temperature is around 63°F / 17.2°C, August is the hottest month in a year. December is the coolest with 39.7°F / 4.3°C average air temperature. temperate climate with warm and dry summer would be the climate here. June, July, August, September would be the best time to visit.

Coupeville Summary

Description Value
Current water temperature 48.2 °F / 9 °C
Warmest Month Water Temperature: August with 54.1°F / 12.3°C
Coldest Month Water Temperature: February with 45.9°F / 7.7°C
Warmest Month Air Temperature: August with 63°F / 17.2°C
Coldest Month Air Temperature: December with 39.7°F / 4.3°C
Wettest Month: March with 3.6in / 91.1mm
Driest Month: August with 0in / 0mm
Highest Humidity January with 87.9%
Lowest Humidity August with 75%
Best Time to Visit: June, July, August, September
Climate Classification temperate climate with warm and dry summer

Coupeville water temperature by month

Salish Sea water temperature by month

Max. Water

Temperature (°F)

ø. Water

Temperature (°F)

Min. Water

Temperature (°F)

January

46.2 46 45.9

February

46 46 45.9

March

46.9 46.4 46

April

48.6 47.7 46.9

May

50.2 49.5 48.6

June

52.5 51.3 50

July

54 53.2 52.3

August

54.3 54 53.2

September

54.1 53.1 52

October

52 50.7 49.6

November

49.6 48.9 47.8

December

47.8 47.1 46.4

Salish Sea water temperature by month

Max. Water

Temperature (°C)

ø. Water

Temperature (°C)

Min. Water

Temperature (°C)

January

7.9 7.8 7.7

February

7.8 7.8 7.7

March

8.3 8 7.8

April

9.2 8.7 8.3

May

10.1 9.7 9.2

June

11.4 10.7 10

July

12.2 11.8 11.3

August

12.4 12.2 11.8

September

12.3 11.7 11.1

October

11.1 10.4 9.8

November

9.8 9.4 8.8

December

8.8 8.4 8
The highest water temperature will be reached in August with around 54.1°F / 12.3°C. The lowest in February with an average water temperature of 45.9°F / 7.7°C.

Coupeville weather today & 14-day weather forecast

Date
Weather
Max. F
Min. F
Max. C
Min. C
Windspeed
Windir.
Precip.
Rainrisk
Rel. Humidity
Apr. 10
Scattered clouds
46 °F
38°F
8 °C
3°C
5mph (8km/h)
west-northwest
0in (2mm)
60 %
69%
Apr. 11
Scattered clouds
47 °F
40°F
8 °C
4°C
2mph (4km/h)
west
0in (0mm)
10 %
73%
Apr. 12
Few clouds
54 °F
42°F
12 °C
5°C
3mph (4km/h)
west-northwest
0in (0mm)
0 %
59%
Apr. 13
Clear Sky
51 °F
44°F
10 °C
6°C
3mph (4km/h)
northwest
0in (0mm)
0 %
70%
Apr. 14
Clear Sky
53 °F
45°F
12 °C
7°C
2mph (2km/h)
northwest
0in (0mm)
0 %
71%
Apr. 15
Few clouds
57 °F
46°F
14 °C
8°C
1mph (2km/h)
southwest
0in (0mm)
0 %
69%
Apr. 16
Few clouds
52 °F
47°F
11 °C
9°C
1mph (2km/h)
southwest
0in (0mm)
0 %
74%
Date
Weather
Max. F
Min. F
Max. C
Min. C
Windspeed
Windir.
Precip.
Rainrisk
Rel. Humidity
Apr. 17
Broken clouds
53 °F
48°F
12 °C
9°C
2mph (4km/h)
south
0in (1mm)
35 %
79%
Apr. 18
Broken clouds
56 °F
46°F
13 °C
8°C
1mph (2km/h)
south-southwest
0in (1mm)
50 %
89%
Apr. 19
Overcast clouds
53 °F
47°F
12 °C
9°C
1mph (2km/h)
southwest
0in (0mm)
0 %
81%
Apr. 20
Overcast clouds
51 °F
49°F
10 °C
9°C
1mph (2km/h)
south-southeast
0in (0mm)
15 %
83%
Apr. 21
Moderate rain
51 °F
49°F
10 °C
9°C
2mph (3km/h)
south-southeast
0in (11mm)
90 %
95%
Apr. 22
Overcast clouds
50 °F
49°F
10 °C
9°C
5mph (8km/h)
southeast
0in (0mm)
10 %
88%
Apr. 23
Overcast clouds
54 °F
47°F
12 °C
8°C
1mph (2km/h)
west-northwest
0in (0mm)
20 %
89%
Apr. 24
Overcast clouds
51 °F
49°F
11 °C
9°C
2mph (4km/h)
southwest
0in (2mm)
65 %
90%
Apr. 25
Overcast clouds
52 °F
49°F
11 °C
10°C
4mph (6km/h)
south-southwest
0in (1mm)
55 %
92%

Coupeville weather by month / climate table

Max.

Temperature

°F

ø.

Temperature

°F

Min.

Temperature

(°F)

Precip.

(in)

Rainy Days

(d)

Rel. Humidity

(%)

January

45.5 40.1 35.4 2.6 16 87.9%

February

46 40.1 34.2 1.4 13 83.6%

March

51.1 42.6 36.5 3.6 21 82.1%

April

56.7 46.6 38.8 1.9 13 78.5%

May

61.3 52.3 43.9 1 5 77.3%

June

66.4 56.7 49.6 1.4 10 78.1%

July

71.2 62.1 54.3 0.3 0 75.6%

August

71.4 63 55.9 0 1 75%

September

66.9 58.3 51.8 0.1 2 78%

October

59.5 51.3 43.7 0.3 0 83.4%

November

51.3 44.2 37 3.4 19 86.9%

December

44.2 39.7 35.4 3.6 18 87.5%

Max.

Temperature

°C

ø.

Temperature

°C

Min.

Temperature

(°C)

Precip.

(mm)

Rainy Days

(d)

Rel. Humidity

(%)

January

7.5 4.5 1.9 65.8 16 87.9%

February

7.8 4.5 1.2 34.5 13 83.6%

March

10.6 5.9 2.5 91.1 21 82.1%

April

13.7 8.1 3.8 48.3 13 78.5%

May

16.3 11.3 6.6 24.6 5 77.3%

June

19.1 13.7 9.8 34.5 10 78.1%

July

21.8 16.7 12.4 7.5 0 75.6%

August

21.9 17.2 13.3 0 1 75%

September

19.4 14.6 11 2.5 2 78%

October

15.3 10.7 6.5 7.3 0 83.4%

November

10.7 6.8 2.8 87.2 19 86.9%

December

6.8 4.3 1.9 90.3 18 87.5%
The warmest avg. temperature is around 63°F / 17.2°C, August is the month with the highest temperature. December is the coolest with 39.7°F / 4.3°C average air temperature. August is the month with the min. precipitation of 0in / 0mm and March with the max. precipitation in a year with 3.6in / 91.1mm.

Activities & POI in Coupeville

Type of Activity List
Beach West Beach, Monroe Landing
Attraction Alexander Blockhouse, Admirality Head Lighthouse
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