| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2026-09-01 | 小毛毛雨 | 18°/17° | 0.9 mm |
| 2026-09-02 | 阵雨 | 22°/18° | 8.7 mm |
| 2026-09-03 | 中阵雨 | 20°/19° | 21.0 mm |
| 2026-09-04 | 阴 | 22°/17° | 0.0 mm |
| 2026-09-05 | 小毛毛雨 | 19°/15° | 0.4 mm |
| 2026-09-06 | 小毛毛雨 | 18°/14° | 0.4 mm |
| 2026-09-07 | 强阵雨 | 19°/17° | 76.8 mm |
| 2026-09-08 | 中阵雨 | 19°/17° | 8.0 mm |
| 2026-09-09 | 中阵雨 | 19°/16° | 36.0 mm |
| 2026-09-10 | 小毛毛雨 | 17°/14° | 0.8 mm |
| 2026-09-11 | 小毛毛雨 | 17°/14° | 0.1 mm |
| 2026-09-12 | 阴 | 18°/15° | 0.0 mm |
| 2026-09-13 | 阴 | 19°/15° | 0.0 mm |
| 2026-09-14 | 阵雨 | 23°/17° | 8.8 mm |
| 2026-09-15 | 中阵雨 | 18°/16° | 18.3 mm |
| 2026-09-16 | 小雨 | 17°/15° | 6.6 mm |
| 2026-09-17 | 阴 | 19°/14° | 0.0 mm |
| 2026-09-18 | 阴 | 18°/14° | 0.0 mm |
| 2026-09-19 | 阵雨 | 20°/16° | 3.6 mm |
| 2026-09-20 | 中阵雨 | 19°/17° | 32.7 mm |
| 2026-09-21 | 中阵雨 | 19°/17° | 32.1 mm |
| 2026-09-22 | 小毛毛雨 | 22°/15° | 0.3 mm |
| 2026-09-23 | 小毛毛雨 | 17°/15° | 0.2 mm |
| 2026-09-24 | 中雨 | 22°/15° | 7.6 mm |
| 2026-09-25 | 小毛毛雨 | 17°/14° | 1.2 mm |
| 2026-09-26 | 小毛毛雨 | 16°/14° | 1.8 mm |
| 2026-09-27 | 毛毛雨 | 16°/15° | 4.8 mm |
| 2026-09-28 | 阴 | 20°/16° | 0.0 mm |
| 2026-09-29 | 阴 | 19°/13° | 0.0 mm |
| 2026-09-30 | 阴 | 17°/12° | 0.0 mm |
2026年09月大船渡市共记录 30 天，平均最高 18℃、最低 15℃，降水日 22 天。