Measurements:
°C
°F
CURRENT WEATHER
14:41
Belfast
54°F
NW 9 mph
Feels like: 52°F
Precip: 0%
World Resorts United Kingdom Belfast Weather

14 Day Weather Forecast

05.18
mon
DAY
54°F
NW 6 mph
precip
86%
NIGHT
48°F
NW 12 mph
precip
100%
05.19
tue
DAY
56°F
NE 7 mph
precip
100%
NIGHT
50°F
NW 4 mph
precip
100%
05.20
wed
DAY
54°F
NE 14 mph
precip
100%
NIGHT
54°F
N 8 mph
precip
60%
05.21
thu
DAY
66°F
NE 12 mph
precip
100%
NIGHT
54°F
NW 5 mph
precip
0%
05.22
fri
DAY
68°F
NE 9 mph
precip
70%
NIGHT
56°F
NE 5 mph
precip
0%
05.23
sat
DAY
64°F
SE 4 mph
precip
80%
NIGHT
48°F
SW 2 mph
precip
0%
05.24
sun
DAY
66°F
W 4 mph
precip
0%
NIGHT
52°F
NE 4 mph
precip
0%
05.25
mon
DAY
60°F
E 3 mph
precip
0%
NIGHT
50°F
SW 4 mph
precip
24%
05.26
tue
DAY
58°F
NE 12 mph
precip
100%
NIGHT
52°F
NE 9 mph
precip
100%
05.27
wed
DAY
60°F
S 3 mph
precip
0%
NIGHT
44°F
NW 4 mph
precip
0%
05.28
thu
DAY
66°F
NE 14 mph
precip
0%
NIGHT
44°F
E 9 mph
precip
0%
05.29
fri
DAY
56°F
E 20 mph
precip
100%
NIGHT
48°F
E 19 mph
precip
0%
05.30
sat
DAY
54°F
SE 20 mph
precip
100%
NIGHT
46°F
SE 11 mph
precip
0%
05.31
sun
DAY
48°F
NE 8 mph
precip
100%
NIGHT
54°F
NE 12 mph
precip
22%

Belfast Sea Water Temperature in May, °F

Select Year: 2026 2025 2024

The average sea surface temperature in May 2026 for Belfast was 53.2°F. The maximum and minimum values were 52.4°F and 53.8°F respectively.

Belfast on the Weather Map

Best Time to Visit Belfast
The most sunny months:
May 6 days
April 6 days
March 5 days
The most warm months:
July 64.8 °F
August 64.5 °F
June 62.2 °F
Warmest sea temperature:
August 58.7 °F
September 58.5 °F
July 57.4 °F
The most cold months:
January 43.0 °F
February 45.0 °F
December 45.1 °F
The most rainy months:
July 7 days
June 6 days
August 6 days
The most windy months:
February 13 mph
December 13 mph
January 12 mph
more details
United Kingdom Resorts:
NAME
F°
Bath +54
Belfast +54
Bournemouth +56
Brighton +54
Bristol +56
Edinburgh +54
Gibraltar +68
Glasgow +52
Liverpool +56
London +58
Middlesbrough +56
Plymouth +52
Scarborough +50
Torquay +54
York +58
all resorts
24 Hours Weather Forecast
Belfast
Local time: 14:41
18 may, monday
1500 54°F
NW
9 mph
1800 52°F
NW
12 mph
2100 48°F
NW
11 mph
19 may, tuesday
0000 48°F
NW
12 mph
0300 46°F
NW
17 mph
0600 48°F
NW
18 mph
0900 50°F
NW
14 mph
1200 56°F
NE
7 mph