| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2026-09-01 | 小毛毛雨 | 28°/16° | 0.8 mm |
| 2026-09-02 | 强阵雨 | 27°/15° | 29.8 mm |
| 2026-09-03 | 中阵雨 | 26°/15° | 12.3 mm |
| 2026-09-04 | 小毛毛雨 | 27°/16° | 1.8 mm |
| 2026-09-05 | 小毛毛雨 | 28°/15° | 0.9 mm |
| 2026-09-06 | 小毛毛雨 | 29°/15° | 0.5 mm |
| 2026-09-07 | 中阵雨 | 29°/15° | 5.1 mm |
| 2026-09-08 | 毛毛雨 | 28°/15° | 2.7 mm |
| 2026-09-09 | 小毛毛雨 | 27°/15° | 0.9 mm |
| 2026-09-10 | 阴 | 27°/15° | 0.0 mm |
| 2026-09-11 | 阴 | 28°/15° | 0.0 mm |
| 2026-09-12 | 毛毛雨 | 29°/15° | 2.5 mm |
| 2026-09-13 | 阴 | 29°/15° | 0.0 mm |
| 2026-09-14 | 阵雨 | 27°/15° | 7.4 mm |
| 2026-09-15 | 中阵雨 | 24°/15° | 16.3 mm |
| 2026-09-16 | 大毛毛雨 | 25°/15° | 3.9 mm |
| 2026-09-17 | 阵雨 | 27°/15° | 6.8 mm |
| 2026-09-18 | 中阵雨 | 27°/15° | 17.2 mm |
| 2026-09-19 | 中阵雨 | 26°/15° | 12.7 mm |
| 2026-09-20 | 雷阵雨 | 23°/15° | 15.3 mm |
| 2026-09-21 | 阵雨 | 21°/16° | 17.5 mm |
| 2026-09-22 | 阵雨 | 21°/15° | 11.2 mm |
| 2026-09-23 | 中阵雨 | 23°/16° | 30.5 mm |
| 2026-09-24 | 雷阵雨 | 24°/16° | 23.7 mm |
| 2026-09-25 | 阵雨 | 24°/16° | 12.3 mm |
| 2026-09-26 | 阵雨 | 23°/15° | 15.3 mm |
| 2026-09-27 | 阵雨 | 21°/15° | 8.4 mm |
| 2026-09-28 | 中阵雨 | 24°/15° | 11.4 mm |
| 2026-09-29 | 雷阵雨 | 24°/15° | 19.6 mm |
| 2026-09-30 | 中阵雨 | 24°/14° | 17.4 mm |
2026年09月圣塞瓦斯蒂安共记录 30 天，平均最高 25℃、最低 15℃，降水日 27 天。