Measurements:
°C
°F
Belfast
48°F
E 9 mph
Feels like: 44°F
Precip: 38%
World Resorts United Kingdom Belfast Weather

7 Day Weather Forecast

06.10
wed
DAY
52°F
E 12 mph
precip
63%
NIGHT
40°F
NE 5 mph
precip
15%
06.11
thu
DAY
52°F
N 7 mph
precip
56%
NIGHT
54°F
E 9 mph
precip
28%
06.12
fri
DAY
62°F
NE 12 mph
precip
38%
NIGHT
50°F
E 9 mph
precip
19%
06.13
sat
DAY
64°F
E 11 mph
precip
9%
NIGHT
52°F
NW 1 mph
precip
20%
06.14
sun
DAY
68°F
NW 6 mph
precip
14%
NIGHT
56°F
NW 5 mph
precip
20%
06.15
mon
DAY
72°F
NW 10 mph
precip
7%
NIGHT
60°F
NW 7 mph
precip
13%
06.16
tue
DAY
62°F
NE 11 mph
precip
34%
NIGHT
52°F
NE 9 mph
precip
21%

Belfast Sea Water Temperature in June, °F

Select Year: 2025 2024 2023

The average sea surface temperature in June 2025 for Belfast was 13.4°F. The maximum and minimum values were 12.6°F and 14.6°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