Swim in Belfast in december 2024What is the temperature of the sea in in december?
Average sea temperature in Belfast in december 2024.
In december, according to seasonal norms, the sea temperature in Belfast is:
Minimum: 49°F
Average: 51°F
Maximum: 54°F
Other useful seasonal weather averages in december:
- Outside temperature: 41°F to 46°F
- Most common weather: "Cloudy"
- The wind blows at 0.6mph
- It rains a total of 4.3in, over 7 day(s).
Should we swim in Belfast in december?
No... The water temperature in Belfast in december is freezing
You won't be able to swim in Belfast in december! The water temperature is freezing, reaching as low as 49°F (and only 54°F at best)! Our advice: if you are going to Belfast this month, plan to sightsee and forget the beach!
Note also that in december, the climate is very bad with an average outside temperature of 43°F, 4.2in of precipitation (over 7 days) and 90.25 % humidity.
Water and normal seasonal temperatures in Belfast in december
| December | |||
| Average sea temperature | 51°F | ||
| Minimum sea temperature | 49°F | ||
| Maximum sea temperature | 54°F | ||
| Average outside temperature | 45°F | ||
| Maximum outside temperature | 47°F | ||
| Minimum outside temperature | 41°F | ||
| Wind speed | 16.2mph | ||
| Wind temperature | 34°F | ||
| Precipitation | 4.3in | ||
| Number of days of rain | 7 jour(s) (21%) | ||
| Humidity | 91% | ||
| Visibility in kilometers | 8.75km | ||
| Cloud cover | 59% | ||
| Our opinion | freezing swimming |
Swim elsewhere in Northern Ireland in december
| City | Average T° | Min. T° | Max. T° | Our opinion | Derry (Londonderry) in december | 52°F | 54°F | freezing swimming | Portrush in december | 52°F | 53°F | freezing swimming | Portstewart in december | 51°F | 54°F | freezing swimming |
Swim in Northern Ireland in december: sea temperature by city