December weather forecast
Galway, Ireland

The year culminates in December, encapsulating the iconic winter vibes of Galway, Ireland. The reduction in daylight hours reaches its peak, and low temperatures become the mainstay, dipping down to about 3.6°C (38.5°F). Despite the wintery chill and substantial rainfall, Galway's December weather does not dampen the city's festive atmosphere.

Temperature

Galway's average high-temperature in December is a chilly 9°C (48.2°F), indicating a subtle variation from November. An average temperature of 3.6°C (38.5°F) marks the nights in December.

Rainfall

In December, the rain falls for 22 days. Throughout December, 121mm (4.76") of precipitation is accumulated. In Galway, during the entire year, the rain falls for 232 days and collects up to 1156mm (45.51") of precipitation.

Sea temperature

In Galway, Ireland, in December, the average water temperature is 11.2°C (52.2°F).
Note: You can swim in 11.2°C (52.2°F) below 10°C (50°F) with proper thermal wear; failing that, the cold shock and respiratory challenges are nearly certain. A short span at 13°C (55.4°F) without it is tough.

Daylight

The month with the shortest days in Galway is December, with an average of 7h and 36min of daylight.
On the first day of the month, sunrise is at 8:28 am and sunset at 4:22 pm. On the last day of December, in Galway, sunrise is at 8:50 am and sunset at 4:27 pm GMT.

Sunshine

With an average of 1h of sunshine, December has the least sunshine of the year in Galway.

UV index

January and December, with an average maximum UV index of 0, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for average individuals.
Note: The daily high UV index of 0 during December translates into the following recommendations:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.