Ilmajoki Airport (SJY) 15 Day Weather Forecast, Seinajoki Finland
Current weather conditions and 15 day weather forecast for Ilmajoki Airport in Seinajoki, Finland including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain, wind speed, cloud, pressure, and UV index.
Current weather conditions at SJY
| 21 December 2025 Sun -1.7 ° C ( 28.9°F )  Fog |
Feels Like : -4.7 ° C / 23.5°F Humidity : % 93 Pressure : 1018 mb Wind Speed : 7.9 kmph / 4.9 miles from NW 
Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 75 |
15-day weather forecast for Ilmajoki Airport, Seinajoki, Finland
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 22 December 2025 Mon |  Sunny |
-5.2 ° C | -0.6 ° C | -2.7 ° C | % 76 | 13.3 km/h | 0% |
| 23 December 2025 Tue | Sunny |
-7 ° C | -6.2 ° C | -6.2 ° C | % 66 | 9.7 km/h | 0% |
| 24 December 2025 Wed | Sunny |
-4.8 ° C | -2.8 ° C | -3.5 ° C | % 88 | 10.8 km/h | 0% |
| 25 December 2025 Thu |  Patchy rain nearby |
-2 ° C | 4.7 ° C | 1.5 ° C | % 89 | 25.6 km/h | 67% |
| 26 December 2025 Fri |  Mist |
0.1 ° C | 1 ° C | 0.7 ° C | % 95 | 10.8 km/h | 0% |
| 27 December 2025 Sat |  Partly Cloudy |
-1.2 ° C | 2.1 ° C | 0.9 ° C | % 71 | 24.8 km/h | 0% |
| 28 December 2025 Sun | Sunny |
-2.1 ° C | 3.4 ° C | 0.3 ° C | % 82 | 23.4 km/h | 0% |
| 29 December 2025 Mon | Partly Cloudy |
-1.8 ° C | 0.1 ° C | -0.4 ° C | % 89 | 15.5 km/h | 0% |
| 30 December 2025 Tue |  Moderate snow |
-3.3 ° C | -2.5 ° C | -2 ° C | % 89 | 11.9 km/h | 77% |
| 31 December 2025 Wed | Mist |
-0.5 ° C | 1.8 ° C | 0.8 ° C | % 97 | 10.4 km/h | 88% |
| 01 January 2026 Thu |  Heavy snow |
-6.8 ° C | -2.2 ° C | -3.8 ° C | % 94 | 20.2 km/h | 78% |
| 02 January 2026 Fri |  Light snow |
-10.3 ° C | -7.9 ° C | -8.4 ° C | % 88 | 16.2 km/h | 75% |
| 03 January 2026 Sat |  Freezing fog |
-12.6 ° C | -10.9 ° C | -11.7 ° C | % 96 | 6.5 km/h | 0% |
| 04 January 2026 Sun |  Light freezing rain |
-11 ° C | -9 ° C | -9.7 ° C | % 92 | 10.4 km/h | 82% |
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