Click on a day for an hourly weather forecast
The weather in Belfast in January is very cold with temperatures between 3°C and 7°C, warm clothes are a must.
You can expect rain for roughly half of the month of January in Belfast. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
You can expect a few days of snow in Belfast during January. It’s important to get out your snow boots and warm mittens to stay warm while you explore Belfast.
Our weather forecast can give you a great sense of what weather to expect in Belfast in January 2025.
If you’re planning to visit Belfast in the near future, we highly recommend that you review the 14 day weather forecast for Belfast before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 7° / 3° | 11 | 17 | 4 | 105 mm | Awful | Belfast in January |
| February | 7° / 3° | 11 | 13 | 5 | 113 mm | Awful | Belfast in February |
| March | 9° / 3° | 10 | 19 | 2 | 99 mm | Awful | Belfast in March |
| April | 11° / 5° | 7 | 22 | 1 | 82 mm | Bad | Belfast in April |
| May | 14° / 7° | 8 | 23 | 0 | 97 mm | Ok | Belfast in May |
| June | 16° / 10° | 8 | 22 | 0 | 121 mm | Ok | Belfast in June |
| July | 17° / 11° | 9 | 22 | 0 | 130 mm | Ok | Belfast in July |
| August | 17° / 11° | 10 | 21 | 0 | 149 mm | Ok | Belfast in August |
| September | 16° / 10° | 7 | 23 | 0 | 99 mm | Ok | Belfast in September |
| October | 13° / 8° | 10 | 21 | 0 | 132 mm | Bad | Belfast in October |
| November | 9° / 6° | 9 | 20 | 1 | 123 mm | Bad | Belfast in November |
| December | 7° / 4° | 9 | 20 | 2 | 110 mm | Awful | Belfast in December |