Swimming in Cliffs of Moher in september 2025: Average sea temperature in september and tide times in september 2025
Average sea temperature in Cliffs of Moher in september 2025.
In september, according to seasonal norms, the sea temperature in Cliffs of Moher is:
Minimum: 57°F
Average: 59°F
Maximum: 62°F
Other useful seasonal weather averages in september:
- Outside temperature: 54°F to 61°F
- Most common weather: "Cloudy"
- The wind blows at 6.2mph
- It rains a total of 5.5in, over 9 day(s).
Should we swim in Cliffs of Moher in september?
No... The water temperature in Cliffs of Moher in september is cold
Swimming in Cliffs of Moher in september is possible... with a wetsuit! Indeed, the water is cold at this time of year with an average sea temperature of 59°F (minimum: 57°F - maximum: 62°F).
Note also that in september, the climate is tolerable with an average outside temperature of 58°F, 5.5in of precipitation (over 9 days) and 87.97 % humidity.
Water and normal seasonal temperatures in Cliffs of Moher in september
| September | |||
| Average sea temperature | 59°F | ||
| Minimum sea temperature | 57°F | ||
| Maximum sea temperature | 62°F | ||
| Average outside temperature | 58°F | ||
| Maximum outside temperature | 61°F | ||
| Minimum outside temperature | 56°F | ||
| Wind speed | 17.4mph | ||
| Wind temperature | 50°F | ||
| Precipitation | 5.5in | ||
| Number of days of rain | 9 jour(s) (30%) | ||
| Humidity | 88% | ||
| Visibility in kilometers | 9.13km | ||
| Cloud cover | 58% | ||
| Our opinion | cold swimming |
Chart of the tides in september 2025
Tide times in september 2025 in Cliffs of Moher
Swim elsewhere in Ireland in september
| City | Average T° | Min. T° | Max. T° | Our opinion | Dublin in september | 59°F | 60°F | freezing swimming | Cork in september | 61°F | 64°F | cold swimming | Galway in september | 59°F | 61°F | freezing swimming | Belmullet in september | 59°F | 62°F | freezing swimming | Connemara National Park in september | 59°F | 62°F | freezing swimming | Dingle in september | 59°F | 63°F | cold swimming | Dundalk in september | 59°F | 60°F | freezing swimming | Dungloe in september | 58°F | 60°F | freezing swimming | Killybegs in september | 58°F | 60°F | freezing swimming | Letterkenny in september | 58°F | 60°F | freezing swimming | Achill Island in september | 59°F | 61°F | freezing swimming | Donegal in september | 58°F | 60°F | freezing swimming | Waterford in september | 61°F | 63°F | cold swimming | Wexford in september | 60°F | 61°F | cold swimming | Sligo in september | 59°F | 61°F | freezing swimming | Westport in september | 59°F | 62°F | freezing swimming |