Swimming in Derry (Londonderry) in october 2025: Average sea temperature in october and tide times in october 2025
Average sea temperature in Derry (Londonderry) in october 2025.
In october, according to seasonal norms, the sea temperature in Derry (Londonderry) is:
Minimum: 54°F
Average: 56°F
Maximum: 58°F
Other useful seasonal weather averages in october:
- Outside temperature: 47°F to 55°F
- Most common weather: "Cloudy"
- The wind blows at 3.7mph
- It rains a total of 2.4in, over 3 day(s).
Should we swim in Derry (Londonderry) in october?
No... The water temperature in Derry (Londonderry) in october is freezing
You won't be able to swim in Derry (Londonderry) in october! The water temperature is freezing, reaching as low as 54°F (and only 58°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 october, the climate is bad with an average outside temperature of 51°F, 2.4in of precipitation (over 3 days) and 92.66 % humidity.
Water and normal seasonal temperatures in Derry (Londonderry) in october
| October | |||
| Average sea temperature | 56°F | ||
| Minimum sea temperature | 54°F | ||
| Maximum sea temperature | 58°F | ||
| Average outside temperature | 52°F | ||
| Maximum outside temperature | 56°F | ||
| Minimum outside temperature | 47°F | ||
| Wind speed | 13.1mph | ||
| Wind temperature | 43°F | ||
| Precipitation | 2.4in | ||
| Number of days of rain | 3 jour(s) (11%) | ||
| Humidity | 93% | ||
| Visibility in kilometers | 8.45km | ||
| Cloud cover | 66% | ||
| Our opinion | freezing swimming |
Chart of the tides in october 2025
Tide times in october 2025 in Derry (Londonderry)
Swim elsewhere in Northern Ireland in october
| City | Average T° | Min. T° | Max. T° | Our opinion | Belfast in october | 56°F | 58°F | freezing swimming | Portrush in october | 56°F | 58°F | freezing swimming | Portstewart in october | 56°F | 58°F | freezing swimming |
Swim in Northern Ireland in october: sea temperature by city