January
Weather in January
Sea temperature
In January, the average sea temperature in Rosslare, Ireland, is 9.6°C (49.3°F).Note: Without suitable protection, venturing into 9.6°C (49.3°F) waters cooler than 10°C (50°F) can lead to pronounced cold shock and rapid breaths.
Daylight
The average length of the day in January is 8h and 20min.On the first day of January in Rosslare, sunrise is at 8:34 am and sunset at 4:22 pm. On the last day of the month, sunrise is at 8:08 am and sunset at 5:09 pm GMT.
Updated: Jan 27, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the sea water temperature in January in Rosslare?
In Rosslare, the average seawater temperature in January is 9.6°C (49.3°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.
What is the average length of the day in January in Rosslare?
In Rosslare, Ireland, the average day length in January is 8h and 20min.
When is the sunrise / sunset in January in Rosslare?
On the first day of January, sunrise is at 8:34 am and sunset at 4:22 pm. On the last day of the month, sunrise is at 8:08 am and sunset at 5:09 pm GMT.
Average sea temperature in January
Rosslare, Ireland
- Average sea temperature in January: 9.6°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 January
Rosslare, Ireland
- Average daylight in January: 8h and 2min
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).
