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 September 2026 Sun 26.3 ° C ( 79.3°F )  Overcast |
Feels Like : 29.3 ° C / 84.7°F Humidity : % 82 Pressure : 1018 mb Wind Speed : 3.6 kmph / 2.2 miles from SE 
Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 95 |
15-day weather forecast for Niihama Airport, Niihama, Japan
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 13 September 2026 Sun |  Sunny |
25.2 ° C | 26.5 ° C | 25.8 ° C | % 81 | 10.4 km/h | 77% |
| 14 September 2026 Mon | Sunny |
24.4 ° C | 26.3 ° C | 25.3 ° C | % 78 | 8.6 km/h | 80% |
| 15 September 2026 Tue |  Light rain shower |
23.7 ° C | 24.7 ° C | 24.2 ° C | % 83 | 11.5 km/h | 86% |
| 16 September 2026 Wed | Light rain shower |
23.4 ° C | 24.7 ° C | 23.9 ° C | % 85 | 13.3 km/h | 82% |
| 17 September 2026 Thu |  Patchy rain nearby |
23.5 ° C | 26 ° C | 24.2 ° C | % 83 | 28.8 km/h | 80% |
| 18 September 2026 Fri | Patchy rain nearby |
23.1 ° C | 24.9 ° C | 23.9 ° C | % 79 | 22.3 km/h | 71% |
| 19 September 2026 Sat | Patchy rain nearby |
24.2 ° C | 25.6 ° C | 24.9 ° C | % 79 | 7.9 km/h | 45% |
| 20 September 2026 Sun | Overcast |
24.1 ° C | 26.1 ° C | 25.4 ° C | % 81 | 15.5 km/h | 47% |
| 21 September 2026 Mon | Overcast |
25.4 ° C | 26.1 ° C | 25.8 ° C | % 80 | 13.7 km/h | 27% |
| 22 September 2026 Tue | Patchy rain nearby |
23.1 ° C | 27.6 ° C | 26 ° C | % 79 | 85 km/h | 87% |
| 23 September 2026 Wed | Sunny |
20.5 ° C | 24.1 ° C | 22 ° C | % 59 | 31 km/h | 57% |
| 24 September 2026 Thu | Sunny |
19.3 ° C | 22.6 ° C | 20.8 ° C | % 58 | 19.8 km/h | 4% |
| 25 September 2026 Fri | Patchy rain nearby |
22.2 ° C | 23.6 ° C | 23 ° C | % 71 | 14 km/h | 22% |
| 26 September 2026 Sat | Overcast |
23.3 ° C | 24.7 ° C | 24 ° C | % 77 | 11.2 km/h | 62% |
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