Swim in Letterkenny in march 2025What is the temperature of the sea in in march?
Average sea temperature in Letterkenny in march 2025.
In march, according to seasonal norms, the sea temperature in Letterkenny is:
Minimum: 46°F
Average: 48°F
Maximum: 50°F
Other useful seasonal weather averages in march:
- Outside temperature: 38°F to 49°F
- Most common weather: "Cloudy"
- The wind blows at -0mph
- It rains a total of 2.5in, over 4 day(s).
Should we swim in Letterkenny in march?
No... The water temperature in Letterkenny in march is freezing
You won't be able to swim in Letterkenny in march! The water temperature is freezing, reaching as low as 46°F (and only 50°F at best)! Our advice: if you are going to Letterkenny this month, plan to sightsee and forget the beach!
Note also that in march, the climate is very bad with an average outside temperature of 43°F, 2.5in of precipitation (over 4 days) and 91.7 % humidity.
Water and normal seasonal temperatures in Letterkenny in march
| March | |||
| Average sea temperature | 48°F | ||
| Minimum sea temperature | 46°F | ||
| Maximum sea temperature | 50°F | ||
| Average outside temperature | 43°F | ||
| Maximum outside temperature | 50°F | ||
| Minimum outside temperature | 38°F | ||
| Wind speed | 14.9mph | ||
| Wind temperature | 32°F | ||
| Precipitation | 2.5in | ||
| Number of days of rain | 4 jour(s) (11%) | ||
| Humidity | 92% | ||
| Visibility in kilometers | 8.24km | ||
| Cloud cover | 66% | ||
| Our opinion | freezing swimming |
Swim elsewhere in Ireland in march
| City | Average T° | Min. T° | Max. T° | Our opinion | Dublin in march | 48°F | 49°F | freezing swimming | Cork in march | 49°F | 51°F | freezing swimming | Galway in march | 49°F | 51°F | freezing swimming | Belmullet in march | 49°F | 51°F | freezing swimming | Connemara National Park in march | 49°F | 51°F | freezing swimming | Dingle in march | 50°F | 52°F | freezing swimming | Dundalk in march | 48°F | 49°F | freezing swimming | Dungloe in march | 49°F | 51°F | freezing swimming | Killybegs in march | 49°F | 51°F | freezing swimming | Achill Island in march | 49°F | 51°F | freezing swimming | Cliffs of Moher in march | 50°F | 51°F | freezing swimming | Donegal in march | 49°F | 51°F | freezing swimming | Waterford in march | 49°F | 50°F | freezing swimming | Wexford in march | 48°F | 49°F | freezing swimming | Sligo in march | 49°F | 51°F | freezing swimming | Westport in march | 49°F | 51°F | freezing swimming |