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
| 21 December 2025 Sun 9.2 ° C ( 48.6°F )  Sunny |
Feels Like : 7.5 ° C / 45.6°F Humidity : % 66 Pressure : 1025 mb Wind Speed : 10.8 kmph / 6.7 miles from NE 
Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 25 |
15-day weather forecast for Niihama Airport, Niihama, Japan
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 22 December 2025 Mon |  Patchy rain nearby |
3.7 ° C | 9.3 ° C | 7.4 ° C | % 70 | 24.5 km/h | 88% |
| 23 December 2025 Tue | Patchy rain nearby |
4.6 ° C | 11.4 ° C | 8.4 ° C | % 72 | 13.7 km/h | 81% |
| 24 December 2025 Wed |  Moderate rain |
9.5 ° C | 14.2 ° C | 12.4 ° C | % 92 | 11.2 km/h | 89% |
| 25 December 2025 Thu | Patchy rain nearby |
6.2 ° C | 12.9 ° C | 11 ° C | % 82 | 31 km/h | 85% |
| 26 December 2025 Fri | Patchy rain nearby |
2.5 ° C | 6.5 ° C | 4.7 ° C | % 62 | 36 km/h | 89% |
| 27 December 2025 Sat |  Overcast |
3.1 ° C | 7.4 ° C | 5.1 ° C | % 66 | 16.6 km/h | 0% |
| 28 December 2025 Sun | Sunny |
3.8 ° C | 7.7 ° C | 5.6 ° C | % 61 | 7.2 km/h | 0% |
| 29 December 2025 Mon | Sunny |
4.1 ° C | 9.5 ° C | 7.3 ° C | % 64 | 16.2 km/h | 0% |
| 30 December 2025 Tue | Patchy rain nearby |
6.5 ° C | 10.5 ° C | 8.2 ° C | % 66 | 18.4 km/h | 87% |
| 31 December 2025 Wed |  Partly Cloudy |
6.5 ° C | 10.6 ° C | 8.4 ° C | % 61 | 8.3 km/h | 0% |
| 01 January 2026 Thu | Partly Cloudy |
8.3 ° C | 11.1 ° C | 9.9 ° C | % 69 | 9 km/h | 0% |
| 02 January 2026 Fri | Patchy rain nearby |
2.5 ° C | 7.2 ° C | 6.3 ° C | % 75 | 24.8 km/h | 85% |
| 03 January 2026 Sat | Patchy rain nearby |
0.9 ° C | 6.3 ° C | 3.9 ° C | % 69 | 30.6 km/h | 79% |
| 04 January 2026 Sun | Partly Cloudy |
1.6 ° C | 8.5 ° C | 5 ° C | % 60 | 9 km/h | 0% |
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