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The weather in Ireland in January is very cold with temperatures between 4°C and 8°C, warm clothes are a must.
You can expect rain for roughly half of the month of January in Ireland. 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.
Please note that Ireland can expect a few days of snow in January.
Our weather forecast can give you a great sense of what weather to expect in Ireland in January 2025.
If you’re planning to visit Ireland in the near future, we highly recommend that you review the 14 day weather forecast for Ireland before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 8° / 4° | 10 | 18 | 2 | 103 mm | Awful | Ireland in January |
| February | 8° / 4° | 8 | 18 | 2 | 92 mm | Awful | Ireland in February |
| March | 9° / 5° | 7 | 23 | 1 | 78 mm | Bad | Ireland in March |
| April | 10° / 6° | 7 | 22 | 1 | 72 mm | Bad | Ireland in April |
| May | 13° / 8° | 6 | 25 | 0 | 74 mm | Ok | Ireland in May |
| June | 15° / 11° | 6 | 24 | 0 | 98 mm | Good | Ireland in June |
| July | 17° / 12° | 7 | 24 | 0 | 97 mm | Ok | Ireland in July |
| August | 17° / 12° | 7 | 24 | 0 | 106 mm | Ok | Ireland in August |
| September | 16° / 11° | 7 | 23 | 0 | 89 mm | Ok | Ireland in September |
| October | 13° / 10° | 8 | 23 | 0 | 123 mm | Bad | Ireland in October |
| November | 10° / 7° | 9 | 21 | 0 | 124 mm | Bad | Ireland in November |
| December | 8° / 5° | 9 | 20 | 2 | 114 mm | Awful | Ireland in December |