Measurements:
°C
°F
CURRENT WEATHER
07:29
Belfast
46°F
N 17 mph
Feels like: 38°F
Precip: 100%
World Resorts United Kingdom Belfast Weather

7 Day Weather Forecast

01.11
sun
DAY
50°F
N 14 mph
precip
0%
NIGHT
46°F
NE 27 mph
precip
100%
01.12
mon
DAY
46°F
NE 17 mph
precip
69%
NIGHT
38°F
NE 3 mph
precip
0%
01.13
tue
DAY
40°F
SE 11 mph
precip
0%
NIGHT
30°F
E 7 mph
precip
0%
01.14
wed
DAY
40°F
N 12 mph
precip
100%
NIGHT
36°F
NE 7 mph
precip
0%
01.15
thu
DAY
40°F
N 6 mph
precip
0%
NIGHT
40°F
W 22 mph
precip
100%
01.16
fri
DAY
40°F
N 9 mph
precip
64%
NIGHT
34°F
E 2 mph
precip
67%
01.17
sat
DAY
40°F
NW 6 mph
precip
84%
NIGHT
40°F
W 19 mph
precip
100%

Belfast Sea Water Temperature in January, °F

Select Year: 2025 2024 2023

The average sea surface temperature in January 2025 for Belfast was 8.5°F. The maximum and minimum values were 7.7°F and 9.6°F respectively.

Belfast on the Weather Map

Best Time to Visit Belfast
The most sunny months:
May 6 days
April 6 days
March 4 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 43.1 °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