Swimming in Letterkenny in march 2025: Average sea temperature in march and tide times in march 2025

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

Chart of the tides in march 2025

Tide times in march 2025 in Letterkenny

Swim elsewhere in Ireland in march

City Average T° Max. T° Our opinion
Dublin in march48°F49°Ffreezing swimming
Cork in march49°F51°Ffreezing swimming
Galway in march49°F51°Ffreezing swimming
Belmullet in march49°F51°Ffreezing swimming
Connemara National Park in march49°F51°Ffreezing swimming
Dingle in march50°F52°Ffreezing swimming
Dundalk in march48°F49°Ffreezing swimming
Dungloe in march49°F51°Ffreezing swimming
Killybegs in march49°F51°Ffreezing swimming
Achill Island in march49°F51°Ffreezing swimming
Cliffs of Moher in march50°F51°Ffreezing swimming
Donegal in march49°F51°Ffreezing swimming
Waterford in march49°F50°Ffreezing swimming
Wexford in march48°F49°Ffreezing swimming
Sligo in march49°F51°Ffreezing swimming
Westport in march49°F51°Ffreezing swimming

Swim in Ireland in march: sea temperature by city

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