| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2026-05-01 | 小毛毛雨 | 15°/7° | 3.0 mm |
| 2026-05-02 | 小毛毛雨 | 19°/6° | 0.2 mm |
| 2026-05-03 | 小毛毛雨 | 26°/7° | 0.1 mm |
| 2026-05-04 | 毛毛雨 | 14°/5° | 2.2 mm |
| 2026-05-05 | 阴 | 10°/3° | 0.0 mm |
| 2026-05-06 | 晴天 | 16°/0° | 0.0 mm |
| 2026-05-07 | 阴 | 19°/4° | 0.0 mm |
| 2026-05-08 | 中雨 | 15°/6° | 13.7 mm |
| 2026-05-09 | 阴 | 22°/7° | 0.0 mm |
| 2026-05-10 | 阴 | 27°/10° | 0.0 mm |
| 2026-05-11 | 小毛毛雨 | 22°/8° | 0.3 mm |
| 2026-05-12 | 中雪 | 14°/3° | 8.6 mm |
| 2026-05-13 | 小毛毛雨 | 13°/3° | 0.1 mm |
| 2026-05-14 | 小毛毛雨 | 14°/2° | 0.2 mm |
| 2026-05-15 | 阵雨 | 9°/3° | 3.4 mm |
| 2026-05-16 | 阴 | 15°/2° | 0.0 mm |
| 2026-05-17 | 小毛毛雨 | 17°/3° | 0.3 mm |
| 2026-05-18 | 毛毛雨 | 9°/4° | 2.2 mm |
| 2026-05-19 | 小毛毛雨 | 10°/3° | 0.1 mm |
| 2026-05-20 | 小毛毛雨 | 18°/6° | 0.1 mm |
| 2026-05-21 | 中阵雨 | 16°/7° | 14.7 mm |
| 2026-05-22 | 中雨 | 21°/6° | 23.4 mm |
| 2026-05-23 | 小阵雪 | 9°/2° | 6.3 mm |
| 2026-05-24 | 阴 | 16°/0° | 0.0 mm |
| 2026-05-25 | 小毛毛雨 | 14°/4° | 1.2 mm |
| 2026-05-26 | 小毛毛雨 | 16°/4° | 0.4 mm |
| 2026-05-27 | 阴 | 22°/6° | 0.0 mm |
| 2026-05-28 | 阴 | 26°/10° | 0.0 mm |
| 2026-05-29 | 阴 | 29°/13° | 0.0 mm |
| 2026-05-30 | 毛毛雨 | 17°/10° | 2.5 mm |
| 2026-05-31 | 阵雨 | 16°/7° | 2.4 mm |
2026年05月伊尔库茨克共记录 31 天，平均最高 16℃、最低 5℃，降水日 21 天。