Conwy Water Temperature

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Conwy is a town close to Irish Sea. August is the month with the highest water temperature at 61.7°F / 16.5°C.
The coldest month is March with an average water temperature of 44.2°F / 6.8°C.
March is the driest at 1.2in / 30.6mm and November the wettest month with 6.3in / 160.9mm.
With an average air temperature of 57.9°F / 14.4°C, July is the warmest month in a year. February is the coldest with 39°F / 3.9°C average air temperature.
The Climate is described as temperate oceanic climate with warm summer. Best time to Visit would be in June, July, August, September.

Conwy Summary

Description Value
Current water temperature /
Warmest Month Water Temperature: August with 16.5°C / 61.7°F
Coldest Month Water Temperature: March with 6.8°C / 44.2°F
Warmest Month Air Temperature: July with 14.4°C / 57.9°F
Coldest Month Air Temperature: February with 3.9°C / 39°F
Wettest Month: November with 160.9mm / 6.3in
Driest Month: March with 30.6mm / 1.2in
Highest Humidity December with 88.6%
Lowest Humidity May with 79.6%
Best Time to Visit: June, July, August, September
Climate Classification temperate oceanic climate with warm summer

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Conwy water temperature by month

Irish Sea water temperature by month

Max. Water

Temperature (°C)

ø. Water

Temperature (°C)

Min. Water

Temperature (°C)

January

8.5 7.8 7.2

February

7.3 6.9 6.7

March

7.4 6.9 6.5

April

9.4 8.3 7.4

May

12.1 10.7 9.4

June

14.7 13.4 12.1

July

16.4 15.6 14.6

August

16.6 16.4 16.2

September

16.4 15.9 15.2

October

15.2 14.1 12.9

November

12.9 11.7 10.4

December

10.4 9.4 8.4

Irish Sea water temperature by month

Max. Water

Temperature (°F)

ø. Water

Temperature (°F)

Min. Water

Temperature (°F)

January

47.3 46 45

February

45.1 44.4 44.1

March

45.3 44.4 43.7

April

48.9 46.9 45.3

May

53.8 51.3 48.9

June

58.5 56.1 53.8

July

61.5 60.1 58.3

August

61.9 61.5 61.2

September

61.5 60.6 59.4

October

59.4 57.4 55.2

November

55.2 53.1 50.7

December

50.7 48.9 47.1
The warmest water temperature are in August with around 61.7°F / 16.5°C. The coldest in March with an average water temperature of 44.2°F / 6.8°C.

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Conwy weather today & 14-day weather forecast

Date
Weather
Max. F
Min. F
Max. C
Min. C
Windspeed
Windir.
Precip.
Rainrisk
Rel. Humidity
Nov. 22
Heavy rain
44 °F
41°F
7 °C
5°C
4mph (6km/h)
west
1in (17mm)
90 %
76%
Nov. 23
Mix snow/rain
60 °F
39°F
15 °C
4°C
5mph (8km/h)
south
1in (17mm)
90 %
78%
Nov. 24
Moderate rain
59 °F
52°F
15 °C
11°C
6mph (9km/h)
south-southwest
1in (14mm)
85 %
73%
Nov. 25
Clear Sky
50 °F
47°F
10 °C
8°C
6mph (9km/h)
west-southwest
0in (0mm)
0 %
72%
Nov. 26
Light shower rain
54 °F
46°F
12 °C
8°C
4mph (6km/h)
west-southwest
0in (2mm)
50 %
76%
Nov. 27
Moderate rain
54 °F
44°F
12 °C
7°C
5mph (8km/h)
west-southwest
0in (11mm)
85 %
85%
Nov. 28
Light shower rain
49 °F
42°F
9 °C
5°C
2mph (3km/h)
west-southwest
0in (2mm)
50 %
91%
Date
Weather
Max. F
Min. F
Max. C
Min. C
Windspeed
Windir.
Precip.
Rainrisk
Rel. Humidity
Nov. 29
Light rain
55 °F
41°F
13 °C
5°C
3mph (5km/h)
south-southeast
0in (6mm)
75 %
94%
Nov. 30
Overcast clouds
57 °F
54°F
14 °C
12°C
3mph (5km/h)
south-southwest
0in (1mm)
25 %
83%
Dec. 01
Light shower rain
56 °F
47°F
13 °C
8°C
2mph (4km/h)
south
0in (2mm)
45 %
86%
Dec. 02
Light shower rain
51 °F
46°F
11 °C
8°C
1mph (2km/h)
southeast
0in (3mm)
60 %
92%
Dec. 03
Light shower rain
42 °F
40°F
6 °C
5°C
3mph (5km/h)
east
0in (5mm)
70 %
94%
Dec. 04
Light rain
42 °F
38°F
5 °C
3°C
3mph (6km/h)
east-northeast
0in (5mm)
70 %
83%
Dec. 05
Broken clouds
44 °F
36°F
7 °C
2°C
2mph (3km/h)
east-northeast
0in (1mm)
35 %
91%
Dec. 06
Light shower rain
47 °F
41°F
8 °C
5°C
1mph (1km/h)
south-southeast
0in (2mm)
45 %
93%
Dec. 07
Scattered clouds
50 °F
39°F
10 °C
4°C
1mph (2km/h)
south-southwest
0in (0mm)
0 %
86%

Conwy weather by month / climate table

Max.

Temperature

°C

ø.

Temperature

°C

Min.

Temperature

(°C)

Precip.

(mm)

Rainy Days

(d)

Rel. Humidity

(%)

January

6.6 4.1 1.1 132.9 18 88.3%

February

6.7 3.9 1 100.7 11 85.5%

March

9 4.9 0.2 31.2 9 83.2%

April

12.5 7.2 2.6 58.5 7 79.8%

May

14.3 10 5 45.7 11 79.6%

June

17.6 12.7 8.5 30.6 9 80.3%

July

18.2 14.4 10.7 39.8 17 82.2%

August

17.8 14.1 10.8 131 20 84.7%

September

16.6 12.7 8.7 69 11 84.3%

October

14.2 9.9 6.2 127.6 0 85.4%

November

10.7 6.9 2.9 158.8 18 87.9%

December

7.7 4.7 1.3 160.9 18 88.6%

Max.

Temperature

°F

ø.

Temperature

°F

Min.

Temperature

(°F)

Precip.

(in)

Rainy Days

(d)

Rel. Humidity

(%)

January

43.9 39.4 34 5.2 18 88.3%

February

44.1 39 33.8 4 11 85.5%

March

48.2 40.8 32.4 1.2 9 83.2%

April

54.5 45 36.7 2.3 7 79.8%

May

57.7 50 41 1.8 11 79.6%

June

63.7 54.9 47.3 1.2 9 80.3%

July

64.8 57.9 51.3 1.6 17 82.2%

August

64 57.4 51.4 5.2 20 84.7%

September

61.9 54.9 47.7 2.7 11 84.3%

October

57.6 49.8 43.2 5 0 85.4%

November

51.3 44.4 37.2 6.3 18 87.9%

December

45.9 40.5 34.3 6.3 18 88.6%
March is the driest at 1.2in / 30.6mm and November the wettest month with 6.3in / 160.9mm. With an average temperature of 57.9°F / 14.4°C, July is the warmest month in a year. February is the coldest with 39°F / 3.9°C average temperature.

Activities & POI in Conwy

Type of Activity List
Attraction Aberconwy House, Smallest House in Great Britain, Conwy Visitor Centre, Plas Mawr, Conwy Castle
Caravan Site Gorse Hill Caravan Park
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