Weather in December
December sees Portrane shift into the stillness of winter. The weather, with the shortest days of the year at 7.6 hours of daylight, folds into the seasonal charm of the holiday month. Sea temperatures drop further to 11.3°C (52.3°F), adding to the winter's bracing coastal winds. The transition from November carries the promise of fresh renewal at the cusp of a new year. January anticipates slightly longer days, although sea temperatures are expected to remain nearly the same.
Note: Immersing oneself in 11.3°C (52.3°F) at sub-10°C (14°F) temperatures is a recipe for harsh cold shock and quickened breathing unless adequately equipped.
On the first day of December in Portrane, sunrise is at 8:18 am and sunset at 4:09 pm. On the last day of the month, sunrise is at 8:40 am and sunset at 4:14 pm GMT.
[Resources]Sea temperature
In December, the average sea temperature in Portrane is 11.3°C (52.3°F).Note: Immersing oneself in 11.3°C (52.3°F) at sub-10°C (14°F) temperatures is a recipe for harsh cold shock and quickened breathing unless adequately equipped.
Daylight
With an average of 7h and 36min of daylight, December has the shortest days of the year.On the first day of December in Portrane, sunrise is at 8:18 am and sunset at 4:09 pm. On the last day of the month, sunrise is at 8:40 am and sunset at 4:14 pm GMT.
Frequently asked questions
What is the sea water temperature in December in Portrane?
In December, the average sea temperature in Portrane is 11.3°C (52.3°F). Swimming in 11.3°C (52.3°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.
What is the month with the shortest days in Portrane?
With an average of 7h and 36min of daylight, December has the shortest days of the year.
What is the average length of the day in December in Portrane?
The average day length in December in Portrane is 7h and 35min.
When are sunrise and sunset in December in Portrane?
On the first day of December in Portrane, Ireland, sunrise is at 8:18 am and sunset at 4:09 pm. On the last day of the month, sunrise is at 8:40 am and sunset at 4:14 pm GMT.
Average sea temperature in December
Portrane, Ireland
- Average sea temperature in December: 11.3°C
The best month for swimming (with the highest average sea temperature) is August (14.9°C).
The coldest month (with the lowest average sea temperature) is March (8.4°C).
Average daylight in December
Portrane, Ireland
- Average daylight in December: 7h and 4min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
Portrane, Ireland
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