| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2026-09-01 | 小毛毛雨 | 17°/14° | 0.1 mm |
| 2026-09-02 | 雷阵雨 | 21°/14° | 6.7 mm |
| 2026-09-03 | 中阵雨 | 19°/13° | 23.5 mm |
| 2026-09-04 | 雷阵雨 | 18°/13° | 11.8 mm |
| 2026-09-05 | 小毛毛雨 | 17°/13° | 3.9 mm |
| 2026-09-06 | 中雨 | 13°/10° | 22.3 mm |
| 2026-09-07 | 中阵雨 | 18°/13° | 38.5 mm |
| 2026-09-08 | 中阵雨 | 20°/15° | 17.7 mm |
| 2026-09-09 | 强阵雨 | 18°/12° | 58.4 mm |
| 2026-09-10 | 毛毛雨 | 12°/10° | 3.5 mm |
| 2026-09-11 | 中阵雨 | 15°/11° | 10.6 mm |
| 2026-09-12 | 小毛毛雨 | 15°/13° | 0.7 mm |
| 2026-09-13 | 雾 | 17°/13° | 0.0 mm |
| 2026-09-14 | 阵雨 | 24°/13° | 6.1 mm |
| 2026-09-15 | 中阵雨 | 16°/13° | 14.5 mm |
| 2026-09-16 | 中阵雨 | 15°/12° | 57.9 mm |
| 2026-09-17 | 毛毛雨 | 15°/11° | 2.9 mm |
| 2026-09-18 | 雾 | 17°/9° | 0.0 mm |
| 2026-09-19 | 毛毛雨 | 19°/10° | 1.0 mm |
| 2026-09-20 | 大毛毛雨 | 17°/14° | 7.6 mm |
| 2026-09-21 | 阵雨 | 17°/14° | 39.8 mm |
| 2026-09-22 | 小毛毛雨 | 20°/10° | 1.1 mm |
| 2026-09-23 | 小毛毛雨 | 13°/9° | 0.5 mm |
| 2026-09-24 | 小毛毛雨 | 20°/10° | 0.9 mm |
| 2026-09-25 | 阴 | 20°/10° | 0.0 mm |
| 2026-09-26 | 中阵雨 | 11°/9° | 17.3 mm |
| 2026-09-27 | 毛毛雨 | 16°/9° | 1.7 mm |
| 2026-09-28 | 阵雨 | 17°/12° | 21.7 mm |
| 2026-09-29 | 中阵雨 | 14°/7° | 14.9 mm |
| 2026-09-30 | 雾 | 16°/7° | 0.0 mm |
2026年09月草津町共记录 30 天，平均最高 16℃、最低 11℃，降水日 26 天。