| < January >
|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 Belfast, Northern Ireland in January is cool at 4 °C (39.2 °F).
- Afternoons can be cool with average high temperatures reaching 6 °C (42.8 °F).
- Overnight temperatures are generally very cool with an average low of 2 °C (35.6 °F).
- In January the mean diurnal temperature variation/ range is 4 °C (7.2 °F).
- The weather in January is dryish with periodic periods of sleet, rain or snow. Just 80mm (3.1in) of water is unloaded during an average of 20 days.
- The blue above Belfast, Northern Ireland is dismal having on average just 1:27 of splendid sunlight daily.
- The shortest day is 7:21 long and the longest day is 8:39 long with an average length of 7:54.
- There are approximately 6:11 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 19% of daylight hours and cloudy 81% of daylight hours.
Check the distance to and compare the Belfast, Northern Ireland January averages with somewhere beginning with:
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Weather Trend Graph for January in Belfast, Northern Ireland, Uk
Navigate to January Weather in Locations Surrounding Belfast, Northern Ireland:
- Tiree, Uk - 209.9 kms (130.5 miles) N
- Malin Head, Ireland - 106.9 kms (66.4 miles) NW
- Ballykelly, Northern Ireland, Uk - 69.1 kms (42.9 miles) NW
- Belfast-Aldergrove, Uk - 1.6 kms (1 miles) NNW
- Belmullet, Ireland - 249.5 kms (155.1 miles) W
- Clones, Ireland - 80.9 kms (50.3 miles) SW
- Collooney, Sligo, Ireland - 153.5 kms (95.4 miles) WSW
- Claremorris, Ireland - 207.8 kms (129.1 miles) WSW
- Dublin, Ireland - 135.3 kms (84.1 miles) S
- Birr, Offaly, Ireland - 205.8 kms (127.9 miles) SSW
- Kilkenny, Ireland - 238.9 kms (148.4 miles) SSW