Measurements:
°C
°F
CURRENT WEATHER
08:13
Belfast
42°F
SE 17 mph
Feels like: 34°F
Precip: 79%
World Resorts United Kingdom Belfast Weather

7 Day Weather Forecast

03.30
mon
DAY
48°F
SE 19 mph
precip
70%
NIGHT
48°F
E 11 mph
precip
0%
03.31
tue
DAY
56°F
E 9 mph
precip
84%
NIGHT
42°F
NE 6 mph
precip
0%
04.01
wed
DAY
52°F
NE 13 mph
precip
0%
NIGHT
40°F
SE 15 mph
precip
0%
04.02
thu
DAY
44°F
NE 9 mph
precip
76%
NIGHT
30°F
E 6 mph
precip
0%
04.03
fri
DAY
40°F
NW 10 mph
precip
100%
NIGHT
48°F
NE 22 mph
precip
100%
04.04
sat
DAY
46°F
NE 17 mph
precip
82%
NIGHT
34°F
E 11 mph
precip
100%
04.05
sun
DAY
36°F
NE 16 mph
precip
100%
NIGHT
30°F
NE 14 mph
precip
0%

Belfast Sea Water Temperature in March, °F

Select Year: 2026 2025 2024

The average sea surface temperature in March 2026 for Belfast was 7.8°F. The maximum and minimum values were 7.5°F and 8.2°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