| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2026-09-01 | 晴天 | 25°/14° | 0.0 mm |
| 2026-09-02 | 晴天 | 25°/14° | 0.0 mm |
| 2026-09-03 | 阴 | 27°/14° | 0.0 mm |
| 2026-09-04 | 阴 | 27°/16° | 0.0 mm |
| 2026-09-05 | 阴 | 28°/17° | 0.0 mm |
| 2026-09-06 | 阴 | 26°/15° | 0.0 mm |
| 2026-09-07 | 阵雨 | 22°/13° | 14.3 mm |
| 2026-09-08 | 小雨 | 19°/12° | 7.0 mm |
| 2026-09-09 | 阴 | 20°/11° | 0.0 mm |
| 2026-09-10 | 晴天 | 23°/10° | 0.0 mm |
| 2026-09-11 | 晴天 | 24°/12° | 0.0 mm |
| 2026-09-12 | 阴 | 24°/13° | 0.0 mm |
| 2026-09-13 | 晴天 | 23°/13° | 0.0 mm |
| 2026-09-14 | 晴天 | 22°/10° | 0.0 mm |
| 2026-09-15 | 阴 | 25°/11° | 0.0 mm |
| 2026-09-16 | 阴 | 29°/13° | 0.0 mm |
| 2026-09-17 | 阴 | 25°/14° | 0.0 mm |
| 2026-09-18 | 阵雨 | 23°/15° | 2.7 mm |
| 2026-09-19 | 阴 | 25°/13° | 0.0 mm |
| 2026-09-20 | 毛毛雨 | 23°/14° | 0.8 mm |
| 2026-09-21 | 阴 | 26°/12° | 0.0 mm |
| 2026-09-22 | 毛毛雨 | 25°/14° | 0.7 mm |
| 2026-09-23 | 阴 | 28°/14° | 0.0 mm |
| 2026-09-24 | 小毛毛雨 | 20°/14° | 1.6 mm |
| 2026-09-25 | 毛毛雨 | 23°/14° | 2.1 mm |
| 2026-09-26 | 强阵雨 | 24°/13° | 29.8 mm |
| 2026-09-27 | 毛毛雨 | 22°/12° | 0.8 mm |
| 2026-09-28 | 小毛毛雨 | 20°/11° | 0.1 mm |
| 2026-09-29 | 小毛毛雨 | 23°/12° | 0.8 mm |
| 2026-09-30 | 阴 | 14°/8° | 0.0 mm |
2026年09月八达岭长城共记录 30 天，平均最高 23℃、最低 12℃，降水日 11 天。