Portrush Water Temperature

Portrush is a town close to Sea of the Hebrides. September is the month with the highest water temperature at 57.4°F / 14.1°C.
The coldest month is March with an average water temperature of 45.3°F / 7.4°C.
May is the driest at 2in / 50.9mm and November the wettest month with 4.9in / 125.1mm.
With an average air temperature of 57°F / 13.9°C, July is the warmest month in a year. January is the coldest with 40.1°F / 4.5°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.

Portrush Summary

Description Value
Current water temperature 7 °C / 44.6 °F
Warmest Month Water Temperature: September with 14.1°C / 57.4°F
Coldest Month Water Temperature: March with 7.4°C / 45.3°F
Warmest Month Air Temperature: July with 13.9°C / 57°F
Coldest Month Air Temperature: January with 4.5°C / 40.1°F
Wettest Month: November with 125.1mm / 4.9in
Driest Month: May with 50.9mm / 2in
Highest Humidity December with 85.9%
Lowest Humidity May with 78.3%
Best Time to Visit: June, July, August, September
Climate Classification temperate oceanic climate with warm summer

Portrush water temperature by month

Sea of the Hebrides water temperature by month

Max. Water

Temperature (°C)

ø. Water

Temperature (°C)

Min. Water

Temperature (°C)

January

9.1 8.5 8

February

8 7.7 7.4

March

7.6 7.4 7.3

April

8.7 8 7.5

May

10.3 9.4 8.7

June

12.1 11.2 10.3

July

13.7 12.9 12.1

August

14.4 14 13.7

September

14.3 14.1 13.7

October

13.7 13.2 12.5

November

12.5 11.6 10.8

December

10.8 10 9.2

Sea of the Hebrides water temperature by month

Max. Water

Temperature (°F)

ø. Water

Temperature (°F)

Min. Water

Temperature (°F)

January

48.4 47.3 46.4

February

46.4 45.9 45.3

March

45.7 45.3 45.1

April

47.7 46.4 45.5

May

50.5 48.9 47.7

June

53.8 52.2 50.5

July

56.7 55.2 53.8

August

57.9 57.2 56.7

September

57.7 57.4 56.7

October

56.7 55.8 54.5

November

54.5 52.9 51.4

December

51.4 50 48.6
The highest water temperature will be reached in September with around 57.4°F / 14.1°C. The lowest in March with an average water temperature of 45.3°F / 7.4°C.

Portrush weather today & 14-day weather forecast

Date
Weather
Max. F
Min. F
Max. C
Min. C
Windspeed
Windir.
Precip.
Rainrisk
Rel. Humidity
Apr. 14
Broken clouds
50 °F
40°F
10 °C
4°C
1mph (2km/h)
southeast
0in (0mm)
0 %
82%
Apr. 15
Few clouds
53 °F
37°F
12 °C
3°C
3mph (4km/h)
south-southeast
0in (0mm)
0 %
74%
Apr. 16
Overcast clouds
52 °F
39°F
11 °C
4°C
4mph (6km/h)
south-southeast
0in (0mm)
0 %
70%
Apr. 17
Light rain
44 °F
35°F
7 °C
1°C
3mph (5km/h)
south-southeast
0in (6mm)
85 %
92%
Apr. 18
Overcast clouds
52 °F
43°F
11 °C
6°C
2mph (3km/h)
south-southeast
0in (1mm)
55 %
98%
Apr. 19
Light rain
49 °F
38°F
9 °C
3°C
2mph (4km/h)
west-southwest
0in (9mm)
90 %
97%
Apr. 20
Scattered clouds
55 °F
35°F
13 °C
2°C
2mph (3km/h)
west-southwest
0in (0mm)
10 %
76%
Date
Weather
Max. F
Min. F
Max. C
Min. C
Windspeed
Windir.
Precip.
Rainrisk
Rel. Humidity
Apr. 21
Overcast clouds
58 °F
36°F
14 °C
2°C
2mph (3km/h)
south
0in (0mm)
0 %
76%
Apr. 22
Broken clouds
61 °F
38°F
16 °C
4°C
2mph (4km/h)
south
0in (0mm)
0 %
80%
Apr. 23
Few clouds
57 °F
41°F
14 °C
5°C
1mph (2km/h)
southeast
0in (0mm)
0 %
74%
Apr. 24
Few clouds
51 °F
42°F
11 °C
6°C
1mph (2km/h)
south-southeast
0in (0mm)
0 %
80%
Apr. 25
Few clouds
47 °F
37°F
8 °C
3°C
1mph (2km/h)
southeast
0in (0mm)
0 %
78%
Apr. 26
Few clouds
49 °F
36°F
10 °C
2°C
1mph (2km/h)
east-southeast
0in (0mm)
0 %
77%
Apr. 27
Overcast clouds
58 °F
39°F
14 °C
4°C
1mph (2km/h)
north-northwest
0in (0mm)
0 %
76%
Apr. 28
Broken clouds
49 °F
41°F
10 °C
5°C
3mph (5km/h)
west-northwest
0in (1mm)
40 %
87%
Apr. 29
Broken clouds
53 °F
43°F
11 °C
6°C
4mph (6km/h)
west-northwest
0in (0mm)
15 %
85%

Portrush weather by month / climate table

Max.

Temperature

°C

ø.

Temperature

°C

Min.

Temperature

(°C)

Precip.

(mm)

Rainy Days

(d)

Rel. Humidity

(%)

January

7.3 4.5 1.8 119.3 17 85.4%

February

7.4 4.6 1.7 78.9 10 82.6%

March

9.1 5.5 1.2 54.3 9 80.3%

April

12.2 7.4 3.4 54.4 8 78.6%

May

13.9 9.9 5 50.9 11 78.3%

June

16.5 12.3 8.6 83.9 15 79.9%

July

17.7 13.9 10.4 99.7 18 81.4%

August

17.3 13.8 10.6 117.1 20 82.5%

September

16.5 12.5 9.4 91.7 14 81.9%

October

13.1 9.8 6.5 108.2 0 83%

November

10.2 7 3.7 125.1 18 84.8%

December

7.9 5 2 107.5 15 85.9%

Max.

Temperature

°F

ø.

Temperature

°F

Min.

Temperature

(°F)

Precip.

(in)

Rainy Days

(d)

Rel. Humidity

(%)

January

45.1 40.1 35.2 4.7 17 85.4%

February

45.3 40.3 35.1 3.1 10 82.6%

March

48.4 41.9 34.2 2.1 9 80.3%

April

54 45.3 38.1 2.1 8 78.6%

May

57 49.8 41 2 11 78.3%

June

61.7 54.1 47.5 3.3 15 79.9%

July

63.9 57 50.7 3.9 18 81.4%

August

63.1 56.8 51.1 4.6 20 82.5%

September

61.7 54.5 48.9 3.6 14 81.9%

October

55.6 49.6 43.7 4.3 0 83%

November

50.4 44.6 38.7 4.9 18 84.8%

December

46.2 41 35.6 4.2 15 85.9%
May is the driest at 2in / 50.9mm and November the wettest month with 4.9in / 125.1mm. With an average temperature of 57°F / 13.9°C, July is the warmest month in a year. January is the coldest with 40.1°F / 4.5°C average temperature.

Activities & POI in Portrush

Type of Activity List
Beach East Strand, West Strand
Attraction Royal Portrush
Golf Course Royal Portrush Golf Club
Caravan Site Dhu Varren Caravan Park, Hilltop Camping
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