Portrush Water Temperature

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Portrush is a town close to Sea of the Hebrides. September is the month with the warmest water temperature at 57.4°F / 14.1°C. The coolest month is March with an avg. water temperature of 45.3°F / 7.4°C. May is the sunniest at 2in / 50.9mm and November the wettest month with 4.9in / 125.1mm. The average air temperature is around 57°F / 13.9°C, July is the hottest month in a year. January is the coolest with 40.1°F / 4.5°C average air temperature. temperate oceanic climate with warm summer would be the climate here. June, July, August, September would be the best time to visit.

Portrush Summary

Description Value
Current water temperature /
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

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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 hottest water temperature typically reached in September with around 57.4°F / 14.1°C. The coldest in March with an average water temperature of 45.3°F / 7.4°C.

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Portrush weather today & 14-day weather forecast

Date
Weather
Max. F
Min. F
Max. C
Min. C
Windspeed
Windir.
Precip.
Rainrisk
Rel. Humidity
Jun. 15
Broken clouds
60 °F
51°F
16 °C
10°C
2mph (4km/h)
west-southwest
0in (0mm)
15 %
84%
Jun. 16
Overcast clouds
66 °F
56°F
19 °C
13°C
3mph (5km/h)
south-southwest
0in (0mm)
10 %
79%
Jun. 17
Broken clouds
63 °F
54°F
17 °C
12°C
3mph (5km/h)
west-southwest
0in (1mm)
25 %
71%
Jun. 18
Broken clouds
60 °F
52°F
15 °C
11°C
2mph (3km/h)
west-southwest
0in (0mm)
10 %
81%
Jun. 19
Scattered clouds
66 °F
48°F
19 °C
9°C
2mph (4km/h)
southeast
0in (0mm)
0 %
79%
Jun. 20
Scattered clouds
69 °F
58°F
21 °C
15°C
3mph (4km/h)
east-southeast
0in (0mm)
20 %
80%
Jun. 21
Light rain
69 °F
51°F
21 °C
10°C
2mph (3km/h)
east-southeast
0in (2mm)
45 %
86%
Date
Weather
Max. F
Min. F
Max. C
Min. C
Windspeed
Windir.
Precip.
Rainrisk
Rel. Humidity
Jun. 22
Light shower rain
62 °F
53°F
17 °C
12°C
2mph (3km/h)
northwest
0in (3mm)
60 %
85%
Jun. 23
Overcast clouds
63 °F
51°F
17 °C
10°C
2mph (3km/h)
west
0in (0mm)
0 %
81%
Jun. 24
Overcast clouds
70 °F
58°F
21 °C
14°C
1mph (2km/h)
west-northwest
0in (1mm)
15 %
90%
Jun. 25
Broken clouds
73 °F
56°F
23 °C
14°C
2mph (3km/h)
northwest
0in (0mm)
0 %
89%
Jun. 26
Broken clouds
59 °F
53°F
15 °C
11°C
3mph (5km/h)
south-southwest
0in (0mm)
20 %
85%
Jun. 27
Scattered clouds
61 °F
45°F
16 °C
7°C
2mph (3km/h)
northeast
0in (0mm)
20 %
74%
Jun. 28
Broken clouds
63 °F
42°F
17 °C
6°C
1mph (2km/h)
northwest
0in (0mm)
0 %
79%
Jun. 29
Overcast clouds
62 °F
45°F
17 °C
7°C
1mph (2km/h)
northwest
0in (0mm)
0 %
76%
Jun. 30
Moderate rain
51 °F
47°F
11 °C
9°C
2mph (3km/h)
east
0in (11mm)
85 %
98%

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 most draught at 2in / 50.9mm and November the month with the most rain around 4.9in / 125.1mm. The avg. temperature is around 57°F / 13.9°C, July is the hottest month in a year. January is the coolest with 40.1°F / 4.5°C avg. 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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