Weather in September
Sea temperature
In September, the average sea temperature in Rosslare, Ireland, is 15.3°C (59.5°F).Note: Most people do not take pleasure in swimming in water at 15.3°C (59.5°F). The difficulty of managing breathing increases as the water temperature dips from 21°C (69.8°F) to 15°C (59°F).
Daylight
The average length of the day in September in Rosslare is 12h and 39min.On the first day of September in Rosslare, sunrise is at 6:37 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:04 pm IST.
Frequently asked questions
What is the sea temperature in September in Rosslare?
In Rosslare, in September, the average water temperature is 15.3°C (59.5°F). For most, swimming in 15.3°C (59.5°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).
How many hours of daylight does Rosslare have in September?
In September, the average day length in Rosslare is 12h and 39min.
When is the sunrise / sunset in September in Rosslare?
In September, on the first day of the month, sunrise is at 6:37 am and sunset at 8:12 pm. On the last day of the month, in Rosslare, sunrise is at 7:25 am and sunset at 7:04 pm IST.
Average sea temperature in September
Rosslare, Ireland
- Average sea temperature in September: 15.3°C
The best month for swimming (with the highest average sea temperature) is August (15.4°C).
The coldest month (with the lowest average sea temperature) is March (8.4°C).
Average daylight in September
Rosslare, Ireland
- Average daylight in September: 12h and 4min
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).
Rosslare, Ireland
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