Niigata Airport (KIJ) 15 Day Weather Forecast, Niigata Japan
Current weather conditions and 15 day weather forecast for Niigata Airport in Niigata, 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 KIJ
| 18 September 2026 Fri 20 ° C ( 67.9°F )  Clear |
Feels Like : 20.1 ° C / 68.2°F Humidity : % 78 Pressure : 1020 mb Wind Speed : 9.7 kmph / 6 miles from ESE 
Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 5 |
15-day weather forecast for Niigata Airport, Niigata, Japan
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 18 September 2026 Fri |  Overcast |
17.1 ° C | 25.4 ° C | 20.8 ° C | % 71 | 14 km/h | 14% |
| 19 September 2026 Sat | Overcast |
19 ° C | 25.2 ° C | 22.5 ° C | % 78 | 12.6 km/h | 21% |
| 20 September 2026 Sun | Overcast |
20.8 ° C | 23.8 ° C | 22.1 ° C | % 84 | 16.2 km/h | 85% |
| 21 September 2026 Mon | Overcast |
21.4 ° C | 23.6 ° C | 22.5 ° C | % 83 | 40 km/h | 79% |
| 22 September 2026 Tue | Sunny |
17.9 ° C | 22.2 ° C | 21.2 ° C | % 70 | 16.6 km/h | 57% |
| 23 September 2026 Wed | Sunny |
17 ° C | 21.5 ° C | 19.6 ° C | % 70 | 10.1 km/h | 9% |
| 24 September 2026 Thu | Overcast |
17.8 ° C | 21.6 ° C | 19.8 ° C | % 72 | 10.4 km/h | 11% |
| 25 September 2026 Fri | Overcast |
17.5 ° C | 21.1 ° C | 19.4 ° C | % 72 | 18 km/h | 13% |
| 26 September 2026 Sat | Overcast |
18.3 ° C | 24.5 ° C | 21.4 ° C | % 74 | 18.4 km/h | 20% |
| 27 September 2026 Sun | Overcast |
20.9 ° C | 25 ° C | 22.8 ° C | % 83 | 28.4 km/h | 89% |
| 28 September 2026 Mon |  Light rain shower |
18.5 ° C | 20.6 ° C | 19.3 ° C | % 76 | 31 km/h | 83% |
| 29 September 2026 Tue | Overcast |
17.9 ° C | 20.6 ° C | 19.1 ° C | % 58 | 23 km/h | 8% |
| 30 September 2026 Wed |  Patchy rain nearby |
16.7 ° C | 20.1 ° C | 18 ° C | % 67 | 54 km/h | 73% |
| 01 October 2026 Thu |  Partly Cloudy |
14.7 ° C | 18.8 ° C | 17.3 ° C | % 55 | 26.3 km/h | 9% |
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