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
| 13 December 2025 Sat 10.4 ° C ( 50.7°F )  Partly cloudy |
Feels Like : 9.4 ° C / 48.8°F Humidity : % 62 Pressure : 1019 mb Wind Speed : 8.6 kmph / 5.4 miles from NE 
Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 75 |
15-day weather forecast for Niihama Airport, Niihama, Japan
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 13 December 2025 Sat |  Patchy rain nearby |
4.1 ° C | 10.7 ° C | 7.2 ° C | % 68 | 16.9 km/h | 91% |
| 14 December 2025 Sun |  Moderate rain |
5.7 ° C | 10.7 ° C | 8.7 ° C | % 75 | 41.4 km/h | 91% |
| 15 December 2025 Mon | Patchy rain nearby |
6.7 ° C | 9.6 ° C | 7.9 ° C | % 62 | 30.6 km/h | 88% |
| 16 December 2025 Tue |  Sunny |
6.6 ° C | 12.2 ° C | 8.9 ° C | % 61 | 11.5 km/h | 0% |
| 17 December 2025 Wed | Moderate rain |
7.3 ° C | 13.3 ° C | 10.5 ° C | % 73 | 16.2 km/h | 88% |
| 18 December 2025 Thu | Patchy rain nearby |
6.4 ° C | 10.5 ° C | 8.8 ° C | % 76 | 22 km/h | 77% |
| 19 December 2025 Fri | Sunny |
6.6 ° C | 12.1 ° C | 9.8 ° C | % 64 | 8.3 km/h | 0% |
| 20 December 2025 Sat |  Heavy rain |
11.1 ° C | 13 ° C | 12.1 ° C | % 90 | 14.8 km/h | 86% |
| 21 December 2025 Sun | Patchy rain nearby |
11.9 ° C | 15.2 ° C | 13.3 ° C | % 87 | 7.6 km/h | 0% |
| 22 December 2025 Mon | Moderate rain |
13.2 ° C | 15.2 ° C | 14.3 ° C | % 94 | 13 km/h | 83% |
| 23 December 2025 Tue | Moderate rain |
11.9 ° C | 14.6 ° C | 13.5 ° C | % 95 | 38.9 km/h | 84% |
| 24 December 2025 Wed | Patchy rain nearby |
6.2 ° C | 10.4 ° C | 9.4 ° C | % 68 | 31.7 km/h | 87% |
| 25 December 2025 Thu | Partly Cloudy |
5.9 ° C | 12.2 ° C | 8.7 ° C | % 65 | 10.8 km/h | 0% |
| 26 December 2025 Fri | Partly Cloudy |
7.7 ° C | 10.8 ° C | 9 ° C | % 65 | 15.8 km/h | 0% |
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