| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2026-09-01 | 阴 | 19°/9° | 0.0 mm |
| 2026-09-02 | 阴 | 19°/10° | 0.0 mm |
| 2026-09-03 | 小毛毛雨 | 18°/9° | 0.9 mm |
| 2026-09-04 | 阴 | 20°/11° | 0.0 mm |
| 2026-09-05 | 晴天 | 23°/9° | 0.0 mm |
| 2026-09-06 | 晴天 | 27°/11° | 0.0 mm |
| 2026-09-07 | 阴 | 29°/16° | 0.0 mm |
| 2026-09-08 | 阴 | 30°/16° | 0.0 mm |
| 2026-09-09 | 雾 | 22°/14° | 0.0 mm |
| 2026-09-10 | 雾 | 19°/14° | 0.0 mm |
| 2026-09-11 | 阴 | 23°/14° | 0.0 mm |
| 2026-09-12 | 小毛毛雨 | 20°/15° | 0.2 mm |
| 2026-09-13 | 小毛毛雨 | 24°/15° | 1.8 mm |
| 2026-09-14 | 毛毛雨 | 18°/14° | 4.7 mm |
| 2026-09-15 | 阵雨 | 18°/13° | 9.8 mm |
| 2026-09-16 | 中阵雨 | 17°/10° | 10.9 mm |
| 2026-09-17 | 晴天 | 19°/11° | 0.0 mm |
| 2026-09-18 | 晴天 | 22°/9° | 0.0 mm |
| 2026-09-19 | 晴天 | 23°/11° | 0.0 mm |
| 2026-09-20 | 晴天 | 28°/14° | 0.0 mm |
| 2026-09-21 | 阴 | 28°/15° | 0.0 mm |
| 2026-09-22 | 小毛毛雨 | 32°/20° | 0.3 mm |
| 2026-09-23 | 小毛毛雨 | 22°/15° | 1.5 mm |
| 2026-09-24 | 雾 | 25°/17° | 0.0 mm |
| 2026-09-25 | 阴 | 25°/15° | 0.0 mm |
| 2026-09-26 | 阵雨 | 21°/15° | 6.2 mm |
| 2026-09-27 | 阴 | 19°/12° | 0.0 mm |
| 2026-09-28 | 阴 | 24°/10° | 0.0 mm |
| 2026-09-29 | 晴天 | 27°/11° | 0.0 mm |
| 2026-09-30 | 阴 | 33°/15° | 0.0 mm |
2026年09月开普敦共记录 30 天，平均最高 23℃、最低 13℃，降水日 9 天。