Swimming in Derry (Londonderry) in may 2025: Average sea temperature in may and tide times in may 2025
Average sea temperature in Derry (Londonderry) in may 2025.
In may, according to seasonal norms, the sea temperature in Derry (Londonderry) is:
Minimum: 50°F
Average: 52°F
Maximum: 53°F
Other useful seasonal weather averages in may:
- Outside temperature: 47°F to 57°F
- Most common weather: "Cloudy"
- The wind blows at 3.7mph
- It rains a total of 2.2in, over 3 day(s).
Should we swim in Derry (Londonderry) in may?
No... The water temperature in Derry (Londonderry) in may is freezing
You won't be able to swim in Derry (Londonderry) in may! The water temperature is freezing, reaching as low as 50°F (and only 53°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 may, the climate is tolerable with an average outside temperature of 52°F, 2.2in of precipitation (over 3 days) and 90.85 % humidity.
Water and normal seasonal temperatures in Derry (Londonderry) in may
| May | |||
| Average sea temperature | 52°F | ||
| Minimum sea temperature | 50°F | ||
| Maximum sea temperature | 53°F | ||
| Average outside temperature | 52°F | ||
| Maximum outside temperature | 58°F | ||
| Minimum outside temperature | 47°F | ||
| Wind speed | 13.1mph | ||
| Wind temperature | 43°F | ||
| Precipitation | 2.2in | ||
| Number of days of rain | 3 jour(s) (9%) | ||
| Humidity | 91% | ||
| Visibility in kilometers | 8.38km | ||
| Cloud cover | 62% | ||
| Our opinion | freezing swimming |
Chart of the tides in may 2025
Tide times in may 2025 in Derry (Londonderry)
Swim elsewhere in Northern Ireland in may
| City | Average T° | Min. T° | Max. T° | Our opinion | Belfast in may | 51°F | 52°F | freezing swimming | Portrush in may | 51°F | 53°F | freezing swimming | Portstewart in may | 51°F | 52°F | freezing swimming |