September weather forecastBallybunnion, Ireland

September

Weather in September

Sea temperature

In Ballybunnion, Ireland, the average seawater temperature in September is 14.9°C (58.8°F).
Note: Danger awaits those who swim in 14.9°C (58.8°F) without protection. Falling below 10°C (50°F) means intense cold shock and hyperventilation.

Daylight

In Ballybunnion, the average length of the day in September is 12h and 40min.
On the first day of September, sunrise is at 6:50 am and sunset at 8:26 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 7:17 pm IST.

Frequently asked questions

In Ballybunnion, the average seawater temperature in September is 14.9°C (58.8°F). At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

The average day length in September in Ballybunnion, Ireland, is 12h and 40min.

In September, on the first day of the month, sunrise is at 6:50 am and sunset at 8:26 pm. On the last day of the month, in Ballybunnion, Ireland, sunrise is at 7:39 am and sunset at 7:17 pm IST.

Average sea temperature in September
Ballybunnion, Ireland

  • Average sea temperature in September: 14.9°C

The best month for swimming (with the highest average sea temperature) is August (15.7°C).
The coldest month (with the lowest average sea temperature) is March (9.6°C).

Average daylight in September
Ballybunnion, Ireland

  • Average daylight in September: 12h and 42min

The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).