| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2026-09-01 | 小毛毛雨 | 23°/19° | 0.2 mm |
| 2026-09-02 | 雷阵雨 | 28°/20° | 1.4 mm |
| 2026-09-03 | 雷阵雨 | 27°/20° | 9.7 mm |
| 2026-09-04 | 阵雨 | 24°/19° | 6.5 mm |
| 2026-09-05 | 阵雨 | 23°/17° | 4.8 mm |
| 2026-09-06 | 中阵雨 | 18°/16° | 63.4 mm |
| 2026-09-07 | 中阵雨 | 22°/18° | 119.8 mm |
| 2026-09-08 | 毛毛雨 | 24°/20° | 4.9 mm |
| 2026-09-09 | 雷阵雨 | 27°/17° | 42.4 mm |
| 2026-09-10 | 毛毛雨 | 17°/15° | 2.9 mm |
| 2026-09-11 | 小雨 | 21°/15° | 3.8 mm |
| 2026-09-12 | 小毛毛雨 | 21°/17° | 0.1 mm |
| 2026-09-13 | 小毛毛雨 | 22°/18° | 0.8 mm |
| 2026-09-14 | 阵雨 | 28°/19° | 5.3 mm |
| 2026-09-15 | 中阵雨 | 22°/19° | 14.0 mm |
| 2026-09-16 | 中阵雨 | 20°/16° | 30.9 mm |
| 2026-09-17 | 毛毛雨 | 22°/16° | 3.8 mm |
| 2026-09-18 | 小毛毛雨 | 21°/14° | 0.3 mm |
| 2026-09-19 | 毛毛雨 | 24°/15° | 0.9 mm |
| 2026-09-20 | 中阵雨 | 21°/18° | 39.5 mm |
| 2026-09-21 | 中阵雨 | 21°/18° | 56.7 mm |
| 2026-09-22 | 阴 | 27°/18° | 0.0 mm |
| 2026-09-23 | 毛毛雨 | 18°/16° | 2.5 mm |
| 2026-09-24 | 雾 | 26°/16° | 0.0 mm |
| 2026-09-25 | 阵雨 | 23°/17° | 5.2 mm |
| 2026-09-26 | 中阵雨 | 17°/14° | 21.7 mm |
| 2026-09-27 | 大毛毛雨 | 21°/14° | 2.2 mm |
| 2026-09-28 | 小雨 | 21°/17° | 4.3 mm |
| 2026-09-29 | 小雨 | 18°/15° | 9.4 mm |
| 2026-09-30 | 阴 | 19°/14° | 0.0 mm |
2026年09月上川町共记录 30 天，平均最高 22℃、最低 16℃，降水日 27 天。