Swimming in Letterkenny in july 2025: Average sea temperature in july and tide times in july 2025
Average sea temperature in Letterkenny in july 2025.
In july, according to seasonal norms, the sea temperature in Letterkenny is:
Minimum: 55°F
Average: 58°F
Maximum: 61°F
Other useful seasonal weather averages in july:
- Outside temperature: 54°F to 64°F
- Most common weather: "Cloudy"
- The wind blows at 7.5mph
- It rains a total of 3.7in, over 7 day(s).
Should we swim in Letterkenny in july?
No... The water temperature in Letterkenny in july is freezing
You won't be able to swim in Letterkenny in july! The water temperature is freezing, reaching as low as 55°F (and only 61°F at best)! Our advice: if you are going to Letterkenny this month, plan to sightsee and forget the beach!
Note also that in july, the climate is bad with an average outside temperature of 59°F, 3.7in of precipitation (over 7 days) and 94.24 % humidity.
Water and normal seasonal temperatures in Letterkenny in july
| July | |||
| Average sea temperature | 58°F | ||
| Minimum sea temperature | 55°F | ||
| Maximum sea temperature | 61°F | ||
| Average outside temperature | 59°F | ||
| Maximum outside temperature | 65°F | ||
| Minimum outside temperature | 56°F | ||
| Wind speed | 10.6mph | ||
| Wind temperature | 54°F | ||
| Precipitation | 3.7in | ||
| Number of days of rain | 7 jour(s) (22%) | ||
| Humidity | 95% | ||
| Visibility in kilometers | 7.5km | ||
| Cloud cover | 69% | ||
| Our opinion | freezing swimming |
Chart of the tides in july 2025
Tide times in july 2025 in Letterkenny
Swim elsewhere in Ireland in july
| City | Average T° | Min. T° | Max. T° | Our opinion | Dublin in july | 58°F | 61°F | freezing swimming | Cork in july | 61°F | 65°F | cold swimming | Galway in july | 59°F | 63°F | freezing swimming | Belmullet in july | 59°F | 63°F | freezing swimming | Connemara National Park in july | 59°F | 63°F | freezing swimming | Dingle in july | 59°F | 63°F | freezing swimming | Dundalk in july | 57°F | 60°F | freezing swimming | Dungloe in july | 58°F | 61°F | freezing swimming | Killybegs in july | 58°F | 61°F | freezing swimming | Achill Island in july | 59°F | 63°F | freezing swimming | Cliffs of Moher in july | 59°F | 63°F | cold swimming | Donegal in july | 58°F | 61°F | freezing swimming | Waterford in july | 60°F | 64°F | cold swimming | Wexford in july | 59°F | 62°F | freezing swimming | Sligo in july | 58°F | 61°F | freezing swimming | Westport in july | 59°F | 63°F | freezing swimming |