Swimming in Belfast in january 2025: Average sea temperature in january and tide times in january 2025

Average sea temperature in Belfast in january 2025.

In january, according to seasonal norms, the sea temperature in Belfast is:

Minimum: 46°F

Average: 48°F

Maximum: 51°F

Other useful seasonal weather averages in january:

  • Outside temperature: 39°F to 45°F
  • Most common weather: "Cloudy"
  • The wind blows at -0mph
  • It rains a total of 4.3in, over 7 day(s).

Should we swim in Belfast in january?

No... The water temperature in Belfast in january is freezing

You won't be able to swim in Belfast in january! The water temperature is freezing, reaching as low as 46°F (and only 51°F at best)! Our advice: if you are going to Belfast this month, plan to sightsee and forget the beach!

Note also that in january, the climate is very bad with an average outside temperature of 42°F, 4.3in of precipitation (over 7 days) and 90.51 % humidity.

Water and normal seasonal temperatures in Belfast in january

January
Average sea temperature 48°F
Minimum sea temperature 46°F
Maximum sea temperature 51°F
Average outside temperature 43°F
Maximum outside temperature 45°F
Minimum outside temperature 40°F
Wind speed 16.2mph
Wind temperature 32°F
Precipitation 4.3in
Number of days of rain 7 jour(s)
(24%)
Humidity 91%
Visibility in kilometers 8.45km
Cloud cover 63%
Our opinion freezing swimming

Chart of the tides in january 2025

Tide times in january 2025 in Belfast

Swim elsewhere in Northern Ireland in january

City Average T° Max. T° Our opinion
Derry (Londonderry) in january50°F52°Ffreezing swimming
Portrush in january49°F51°Ffreezing swimming
Portstewart in january49°F51°Ffreezing swimming

Swim in Northern Ireland in january: sea temperature by city

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