Cemaes Bay Water Temperature

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Cemaes Bay is a town close to Irish Sea. September is the month with the highest water temperature at 59.7°F / 15.4°C.
The coldest month is March with an average water temperature of 45.5°F / 7.5°C.
June is the driest at 0.7in / 18.8mm and November the wettest month with 4.9in / 123.6mm.
With an average air temperature of 59.5°F / 15.3°C, August is the warmest month in a year. February is the coldest with 42.8°F / 6°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.

Cemaes Bay Summary

Description Value
Current water temperature /
Warmest Month Water Temperature: September with 15.4°C / 59.7°F
Coldest Month Water Temperature: March with 7.5°C / 45.5°F
Warmest Month Air Temperature: August with 15.3°C / 59.5°F
Coldest Month Air Temperature: February with 6°C / 42.8°F
Wettest Month: November with 123.6mm / 4.9in
Driest Month: June with 18.8mm / 0.7in
Highest Humidity August with 81.6%
Lowest Humidity April with 78.4%
Best Time to Visit: June, July, August, September
Climate Classification temperate oceanic climate with warm summer

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Cemaes Bay water temperature by month

Irish Sea water temperature by month

Max. Water

Temperature (°C)

ø. Water

Temperature (°C)

Min. Water

Temperature (°C)

January

9.6 8.9 8.3

February

8.2 7.9 7.7

March

7.8 7.6 7.4

April

9.1 8.4 7.8

May

11 10 9.1

June

13.1 12 11

July

14.7 14 13.1

August

15.5 15.2 14.6

September

15.6 15.3 15

October

15 14.3 13.5

November

13.5 12.5 11.4

December

11.3 10.4 9.6

Irish Sea water temperature by month

Max. Water

Temperature (°F)

ø. Water

Temperature (°F)

Min. Water

Temperature (°F)

January

49.3 48 46.9

February

46.8 46.2 45.9

March

46 45.7 45.3

April

48.4 47.1 46

May

51.8 50 48.4

June

55.6 53.6 51.8

July

58.5 57.2 55.6

August

59.9 59.4 58.3

September

60.1 59.5 59

October

59 57.7 56.3

November

56.3 54.5 52.5

December

52.3 50.7 49.3
September is the month with the highest water temperature at 59.7°F / 15.4°C. The month with the lowest is March with an average water temperature of 45.5°F / 7.5°C.

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Cemaes Bay weather today & 14-day weather forecast

Date
Weather
Max. F
Min. F
Max. C
Min. C
Windspeed
Windir.
Precip.
Rainrisk
Rel. Humidity
Jan. 21
Light rain
46 °F
41°F
8 °C
5°C
2mph (3km/h)
south-southwest
0in (5mm)
75 %
94%
Jan. 22
Scattered clouds
45 °F
38°F
7 °C
4°C
1mph (2km/h)
south-southwest
0in (0mm)
10 %
91%
Jan. 23
Light rain
51 °F
41°F
11 °C
5°C
4mph (6km/h)
southwest
0in (6mm)
75 %
80%
Jan. 24
Moderate rain
48 °F
40°F
9 °C
5°C
9mph (14km/h)
southwest
0in (11mm)
85 %
69%
Jan. 25
Mix snow/rain
43 °F
35°F
6 °C
2°C
3mph (4km/h)
south-southwest
0in (0mm)
20 %
78%
Jan. 26
Broken clouds
42 °F
33°F
6 °C
1°C
2mph (3km/h)
southeast
0in (0mm)
20 %
82%
Jan. 27
Heavy rain
50 °F
37°F
10 °C
3°C
3mph (6km/h)
south-southeast
1in (22mm)
90 %
87%
Date
Weather
Max. F
Min. F
Max. C
Min. C
Windspeed
Windir.
Precip.
Rainrisk
Rel. Humidity
Jan. 28
Moderate rain
47 °F
46°F
9 °C
8°C
7mph (12km/h)
south-southwest
1in (14mm)
85 %
86%
Jan. 29
Moderate rain
46 °F
42°F
8 °C
6°C
4mph (6km/h)
southwest
1in (15mm)
90 %
86%
Jan. 30
Light rain
52 °F
40°F
11 °C
4°C
5mph (8km/h)
south-southwest
0in (7mm)
80 %
82%
Jan. 31
Moderate rain
52 °F
45°F
11 °C
7°C
8mph (12km/h)
southwest
1in (13mm)
85 %
85%
Feb. 01
Light rain
53 °F
43°F
12 °C
6°C
7mph (11km/h)
southwest
0in (8mm)
80 %
86%
Feb. 02
Light shower rain
48 °F
44°F
9 °C
7°C
7mph (12km/h)
southwest
0in (4mm)
65 %
79%
Feb. 03
Mix snow/rain
40 °F
38°F
5 °C
4°C
6mph (10km/h)
west-southwest
0in (6mm)
75 %
73%
Feb. 04
Light shower rain
42 °F
38°F
6 °C
3°C
5mph (8km/h)
west
0in (5mm)
70 %
75%
Feb. 05
Light shower rain
47 °F
38°F
8 °C
4°C
2mph (4km/h)
west-southwest
0in (4mm)
65 %
87%

Cemaes Bay weather by month / climate table

Max.

Temperature

°C

ø.

Temperature

°C

Min.

Temperature

(°C)

Precip.

(mm)

Rainy Days

(d)

Rel. Humidity

(%)

January

8.6 6.4 4.2 103.9 13 79.8%

February

8.2 6 3.9 64.9 10 78.9%

March

9.5 6.7 3.2 22.5 8 79.2%

April

12 8.4 5.1 28.7 5 78.4%

May

14 10.9 7.2 24.7 5 78.5%

June

16.9 13.4 10.2 18.8 3 80%

July

18 15.1 12.3 23.8 7 80.7%

August

17.9 15.3 12.8 103.7 13 81.6%

September

16.9 14.2 11.5 62.6 4 79.7%

October

15.1 11.9 9.1 97.5 0 78.7%

November

11.9 9.1 6.1 123.6 19 79.3%

December

9.7 7.2 4.6 115.7 18 79.8%

Max.

Temperature

°F

ø.

Temperature

°F

Min.

Temperature

(°F)

Precip.

(in)

Rainy Days

(d)

Rel. Humidity

(%)

January

47.5 43.5 39.6 4.1 13 79.8%

February

46.8 42.8 39 2.6 10 78.9%

March

49.1 44.1 37.8 0.9 8 79.2%

April

53.6 47.1 41.2 1.1 5 78.4%

May

57.2 51.6 45 1 5 78.5%

June

62.4 56.1 50.4 0.7 3 80%

July

64.4 59.2 54.1 0.9 7 80.7%

August

64.2 59.5 55 4.1 13 81.6%

September

62.4 57.6 52.7 2.5 4 79.7%

October

59.2 53.4 48.4 3.8 0 78.7%

November

53.4 48.4 43 4.9 19 79.3%

December

49.5 45 40.3 4.6 18 79.8%
The hottest avg. temperature is around 59.5°F / 15.3°C, August is the month with the highest temperature. February is the coolest with 42.8°F / 6°C average temperature. June is the month with the lowest precipitation of 0.7in / 18.8mm and November with the maximum precipitation in a year with 4.9in / 123.6mm.

Activities & POI in Cemaes Bay

Type of Activity List
Beach Traeth Bach, Traeth Mawr
Attraction Vistor Centre
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