Roscommon County, Ireland, a region in Ireland, typically experiences cold weather in December, with maximum daytime temperatures around 9°C (48°F) and nighttime temperatures around 3°C (37°F) in Boyle. December is part of the winter season
Curious about the December temperatures in the prime spots of Roscommon County? Navigate the map below and tap on a destination dot for more detailed stats.
Pick a month to see the average temperature, rainfall and sunshine in Roscommon County - and find the best time to visit. See also: Roscommon County weather by month.
Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Roscommon County.
Marker color shows the average daytime high temperature in December: blue is cold, red is hot.
Expect daytime temperatures around 9°C (48°F) in Boyle. That makes December a low month for Roscommon County, Ireland.
Average overnight lows in Roscommon County, Ireland during December sit near 3°C (37°F) in Boyle.
Most areas see fewer sunny days, with a projection of about 35 hours of sunshine in Boyle. This reduced sunlight makes it ideal for those who prefer cooler, overcast conditions over bright sunny days.
We have much more information about the climate in Roscommon County.
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