Click on a day for an hourly weather forecast
The weather in Kouvola in January is very cold with temperatures between -9°C and -4°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Kouvola during the month of January. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Let it snow! You can expect Kouvola to be covered in white during the month of January. Be sure to bundle up when you venture outside, or take the opportunity to enjoy hot cocoa by the fire for warmth this month.
Our weather forecast can give you a great sense of what weather to expect in Kouvola in January 2026.
If you’re planning to visit Kouvola in the near future, we highly recommend that you review the 14 day weather forecast for Kouvola before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -4° / -9° | 4 | 4 | 24 | 76 mm | Awful | Kouvola in January |
| February | -4° / -9° | 4 | 3 | 22 | 71 mm | Awful | Kouvola in February |
| March | 0° / -6° | 6 | 5 | 21 | 65 mm | Awful | Kouvola in March |
| April | 6° / 0° | 7 | 13 | 10 | 54 mm | Awful | Kouvola in April |
| May | 15° / 6° | 7 | 23 | 2 | 68 mm | Bad | Kouvola in May |
| June | 19° / 10° | 6 | 24 | 0 | 82 mm | Good | Kouvola in June |
| July | 22° / 13° | 6 | 25 | 0 | 98 mm | Good | Kouvola in July |
| August | 20° / 12° | 6 | 25 | 0 | 89 mm | Good | Kouvola in August |
| September | 15° / 8° | 5 | 25 | 0 | 77 mm | Good | Kouvola in September |
| October | 7° / 3° | 8 | 18 | 5 | 78 mm | Awful | Kouvola in October |
| November | 3° / 0° | 8 | 12 | 11 | 81 mm | Awful | Kouvola in November |
| December | -2° / -5° | 8 | 3 | 22 | 87 mm | Awful | Kouvola in December |