Niihama Airport (IHA) 15 Day Weather Forecast, Niihama Japan
Current weather conditions and 15 day weather forecast for Niihama Airport in Niihama, Japan 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 IHA
| 20 December 2025 Sat 14.1 ° C ( 57.4°F )  Partly cloudy |
Feels Like : 14.8 ° C / 58.6°F Humidity : % 94 Pressure : 1020 mb Wind Speed : 3.6 kmph / 2.2 miles from E 
Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 50 |
15-day weather forecast for Niihama Airport, Niihama, Japan
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 20 December 2025 Sat |  Sunny |
10.6 ° C | 14.6 ° C | 12.5 ° C | % 76 | 10.1 km/h | 0% |
| 21 December 2025 Sun |  Moderate rain |
7.6 ° C | 14.1 ° C | 11.7 ° C | % 86 | 29.2 km/h | 95% |
| 22 December 2025 Mon | Sunny |
4.6 ° C | 9.9 ° C | 7.2 ° C | % 65 | 20.2 km/h | 0% |
| 23 December 2025 Tue | Moderate rain |
4.5 ° C | 11.7 ° C | 8.9 ° C | % 73 | 12.6 km/h | 73% |
| 24 December 2025 Wed | Moderate rain |
9.7 ° C | 15.4 ° C | 12.9 ° C | % 93 | 18.7 km/h | 86% |
| 25 December 2025 Thu |  Patchy rain nearby |
5.8 ° C | 9.3 ° C | 8.5 ° C | % 69 | 19.1 km/h | 83% |
| 26 December 2025 Fri | Moderate rain |
4.9 ° C | 10.5 ° C | 7.7 ° C | % 70 | 18 km/h | 79% |
| 27 December 2025 Sat | Moderate rain |
6.6 ° C | 11.6 ° C | 9 ° C | % 92 | 24.8 km/h | 89% |
| 28 December 2025 Sun | Patchy rain nearby |
5.6 ° C | 8.6 ° C | 7.4 ° C | % 71 | 33.1 km/h | 82% |
| 29 December 2025 Mon | Sunny |
4.6 ° C | 8.3 ° C | 6.2 ° C | % 63 | 6.8 km/h | 0% |
| 30 December 2025 Tue | Partly Cloudy |
5.2 ° C | 10.8 ° C | 8.6 ° C | % 62 | 10.1 km/h | 0% |
| 31 December 2025 Wed | Patchy rain nearby |
0.8 ° C | 4.6 ° C | 4.5 ° C | % 78 | 46.8 km/h | 82% |
| 01 January 2026 Thu | Patchy rain nearby |
1 ° C | 4.3 ° C | 2.9 ° C | % 72 | 60.5 km/h | 86% |
| 02 January 2026 Fri | Patchy rain nearby |
3.8 ° C | 8.3 ° C | 6 ° C | % 73 | 39.6 km/h | 85% |
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