Swimming in Donegal in august 2025: Average sea temperature in august and tide times in august 2025
Average sea temperature in Donegal in august 2025.
In august, according to seasonal norms, the sea temperature in Donegal is:
Minimum: 57°F
Average: 59°F
Maximum: 61°F
Other useful seasonal weather averages in august:
- Outside temperature: 53°F to 62°F
- Most common weather: "Moderate rain at times"
- The wind blows at 6.8mph
- It rains a total of 6.3in, over 10 day(s).
Should we swim in Donegal in august?
No... The water temperature in Donegal in august is freezing
You won't be able to swim in Donegal in august! The water temperature is freezing, reaching as low as 57°F (and only 61°F at best)! Our advice: if you are going to Donegal this month, plan to sightsee and forget the beach!
Note also that in august, the climate is bad with an average outside temperature of 58°F, 6.3in of precipitation (over 10 days) and 93.68 % humidity.
Water and normal seasonal temperatures in Donegal in august
| August | |||
| Average sea temperature | 59°F | ||
| Minimum sea temperature | 57°F | ||
| Maximum sea temperature | 61°F | ||
| Average outside temperature | 59°F | ||
| Maximum outside temperature | 63°F | ||
| Minimum outside temperature | 54°F | ||
| Wind speed | 12.4mph | ||
| Wind temperature | 52°F | ||
| Precipitation | 6.3in | ||
| Number of days of rain | 10 jour(s) (33%) | ||
| Humidity | 94% | ||
| Visibility in kilometers | 8.27km | ||
| Cloud cover | 69% | ||
| Our opinion | freezing swimming |
Chart of the tides in august 2025
Tide times in august 2025 in Donegal
Swim elsewhere in Ireland in august
| City | Average T° | Min. T° | Max. T° | Our opinion | Dublin in august | 59°F | 61°F | cold swimming | Cork in august | 62°F | 65°F | cold swimming | Galway in august | 60°F | 63°F | cold swimming | Belmullet in august | 60°F | 62°F | cold swimming | Connemara National Park in august | 60°F | 62°F | cold swimming | Dingle in august | 61°F | 63°F | cold swimming | Dundalk in august | 59°F | 60°F | freezing swimming | Dungloe in august | 59°F | 61°F | freezing swimming | Killybegs in august | 59°F | 61°F | freezing swimming | Letterkenny in august | 59°F | 61°F | freezing swimming | Achill Island in august | 60°F | 62°F | cold swimming | Cliffs of Moher in august | 61°F | 63°F | cold swimming | Waterford in august | 62°F | 64°F | cold swimming | Wexford in august | 60°F | 62°F | cold swimming | Sligo in august | 59°F | 61°F | cold swimming | Westport in august | 60°F | 62°F | cold swimming |