| < December >
|Normal Max/ High Temperature
|Min/ Low Temperature
|Number of Wet Days (probability of rain on a day)
|Average Sunlight per day
|Average Daylight per day
|Sunny (Cloudy) Daylight Hours
|Sun altitude at solar noon on the 21st day.
- The average temperature in Shannon in December is cool at 6.5 °C (43.7 °F).
- Afternoons can be a little cool with average high temperatures reaching 8.9 °C (48 °F).
- Overnight temperatures are generally cool with an average low of 3.6 °C (38.5 °F).
- The mean diurnal temperature range/ variation in December is 5.3 °C (9.5 °F).
- The weather in December is hardly arid with rain, sleet or snow time and again. Circa 99mm (3.9in) of H2O descends during on average 24 days.
- The heavens above Shannon are dismal having on average just 1:23 of resplendent solar radiation per day.
- The shortest day is 7:37 long and the longest day is 7:57 long with an average length of 7:42.
- There are approximately 6:04 per day when bright sunshine is absent due to cloud, haze or the sun being too low on the horizon to register.
- It is sunny approximately 18.6% of daylight hours and cloudy 81.4% of daylight hours.
Check the distance to and compare the Shannon December averages with somewhere beginning with:
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Weather Trend Graph for December in Shannon, Ireland
Navigate to December Weather in Locations Surrounding Shannon:
- Malin Head, Ireland - 314 kms (195.1 miles) NNE
- Ballykelly, Northern Ireland, Uk - 291.1 kms (180.9 miles) NNE
- Belfast-Aldergrove, Uk - 281.1 kms (174.7 miles) NE
- Belfast, Northern Ireland, Uk - 280.4 kms (174.2 miles) NE
- Clones, Ireland - 201.8 kms (125.4 miles) NNE
- Collooney, Sligo, Ireland - 167.8 kms (104.3 miles) N
- Douglas, Isle Of Man, Uk - 336.8 kms (209.3 miles) ENE
- Dublin, Ireland - 195.9 kms (121.8 miles) ENE
- Valley, Uk - 299.6 kms (186.2 miles) ENE
- Birr, Offaly, Ireland - 81.4 kms (50.6 miles) ENE
- Kilkenny, Ireland - 109.6 kms (68.1 miles) E
- Aberystwyth, Wales, Uk - 330.4 kms (205.3 miles) E
- Rosslare, Wexford, Ireland - 182.6 kms (113.5 miles) ESE
- Aberporth, Uk - 301.2 kms (187.1 miles) E
- Cork, Ireland - 93.7 kms (58.2 miles) SSE
- Cork (Ap), Ireland - 99 kms (61.5 miles) SSE