Sea temperature Belfast today
Water temperature
13.5°
8° airModerate rain · Feels like −2°
The sea is 13.5 °C, so quite cold, and the air will reach 10 °C today. Waves will be moderate, up to 1.1 m, with the north-westerly wind picking up. On Wednesday the sea will settle. The sea will hold at around 13 °C for the rest of the week.
- Waves
- 0.9 m
- Wind NW
- 44 km/h
Updated: 22 Oct, 23:53
Sea temperature for 7 days
water low / high- Today23 Oct13.4°13.5°1.1 m
- Tomorrow24 Oct13.3°13.4°1.0 m
- Sunday25 Oct13.3°13.3°1.2 m
- Monday26 Oct13.2°13.3°0.7 m
- Tuesday27 Oct13.2°13.3°1.1 m
- Wednesday28 Oct13.3°13.3°0.4 m
- Thursday29 Oct13.3°13.4°1.0 m
Waves
0.9 m
Period 3.5 s. From N.
Swell
0.2 m
Waves from the open sea, from NE. Wind waves 0.9 m.
Sea current
0.9 km/h
Flowing towards E.
Wind
44 km/h
Blowing from NW.
Sea temperature Belfast by month
- 7°Jan
- 7°Feb
- 8°Mar
- 10°Apr
- 14°May
- 15°Jun
- 16°Jul
- 17°Aug
- 15°Sep
- 14°Oct
- 11°Nov
- 9°Dec
Long-term averages, the current month is highlighted.
When to swim in Belfast?
Warmest monthAugAverage 17 °C
Coldest monthJanAverage 7 °C
Annual average12.0 °CAverage sea temperature