Swimming in Derry (Londonderry) in november 2025: Average sea temperature in november and tide times in november 2025
Average sea temperature in Derry (Londonderry) in november 2025.
In november, according to seasonal norms, the sea temperature in Derry (Londonderry) is:
Minimum: 53°F
Average: 54°F
Maximum: 56°F
Other useful seasonal weather averages in november:
- Outside temperature: 42°F to 49°F
- Most common weather: "Cloudy"
- The wind blows at 1.9mph
- It rains a total of 2.5in, over 3 day(s).
Should we swim in Derry (Londonderry) in november?
No... The water temperature in Derry (Londonderry) in november is freezing
You won't be able to swim in Derry (Londonderry) in november! The water temperature is freezing, reaching as low as 53°F (and only 56°F at best)! Our advice: if you are going to Derry (Londonderry) this month, plan to sightsee and forget the beach!
Note also that in november, the climate is bad with an average outside temperature of 45°F, 2.5in of precipitation (over 3 days) and 91.08 % humidity.
Water and normal seasonal temperatures in Derry (Londonderry) in november
| November | |||
| Average sea temperature | 54°F | ||
| Minimum sea temperature | 53°F | ||
| Maximum sea temperature | 56°F | ||
| Average outside temperature | 47°F | ||
| Maximum outside temperature | 49°F | ||
| Minimum outside temperature | 43°F | ||
| Wind speed | 13.7mph | ||
| Wind temperature | 38°F | ||
| Precipitation | 2.5in | ||
| Number of days of rain | 3 jour(s) (12%) | ||
| Humidity | 92% | ||
| Visibility in kilometers | 8.58km | ||
| Cloud cover | 68% | ||
| Our opinion | freezing swimming |
Chart of the tides in november 2025
Tide times in november 2025 in Derry (Londonderry)
Swim elsewhere in Northern Ireland in november
| City | Average T° | Min. T° | Max. T° | Our opinion | Belfast in november | 54°F | 56°F | freezing swimming | Portrush in november | 55°F | 56°F | freezing swimming | Portstewart in november | 55°F | 56°F | freezing swimming |
Swim in Northern Ireland in november: sea temperature by city