| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2026-04-01 | 小毛毛雨 | 3°/0° | 1.0 mm |
| 2026-04-02 | 大雪 | 2°/0° | 8.3 mm |
| 2026-04-03 | 中雪 | 3°/0° | 0.8 mm |
| 2026-04-04 | 阵雨 | 6°/1° | 5.9 mm |
| 2026-04-05 | 阵雨 | 7°/0° | 11.8 mm |
| 2026-04-06 | 阴 | 2°/0° | 0.0 mm |
| 2026-04-07 | 小雨 | 4°/1° | 2.9 mm |
| 2026-04-08 | 阴 | 5°/1° | 0.0 mm |
| 2026-04-09 | 阴 | 6°/3° | 0.0 mm |
| 2026-04-10 | 小雨 | 5°/2° | 10.5 mm |
| 2026-04-11 | 小毛毛雨 | 8°/3° | 1.0 mm |
| 2026-04-12 | 中雪 | 4°/1° | 5.5 mm |
| 2026-04-13 | 中雨 | 7°/2° | 6.1 mm |
| 2026-04-14 | 小毛毛雨 | 6°/2° | 0.1 mm |
| 2026-04-15 | 小毛毛雨 | 5°/2° | 0.5 mm |
| 2026-04-16 | 毛毛雨 | 3°/2° | 1.6 mm |
| 2026-04-17 | 阴 | 5°/1° | 0.0 mm |
| 2026-04-18 | 小毛毛雨 | 6°/3° | 0.7 mm |
| 2026-04-19 | 小毛毛雨 | 7°/2° | 0.1 mm |
| 2026-04-20 | 阴 | 2°/1° | 0.0 mm |
| 2026-04-21 | 中雨 | 6°/2° | 7.2 mm |
| 2026-04-22 | 阵雨 | 9°/3° | 4.5 mm |
| 2026-04-23 | 小毛毛雨 | 6°/3° | 0.4 mm |
| 2026-04-24 | 阴 | 3°/1° | 0.0 mm |
| 2026-04-25 | 阴 | 3°/0° | 0.0 mm |
| 2026-04-26 | 阴 | 7°/2° | 0.0 mm |
| 2026-04-27 | 阴 | 8°/4° | 0.0 mm |
| 2026-04-28 | 小毛毛雨 | 5°/1° | 0.4 mm |
| 2026-04-29 | 小毛毛雨 | 4°/1° | 0.4 mm |
| 2026-04-30 | 阴 | 7°/3° | 0.0 mm |
2026年04月根室市共记录 30 天，平均最高 5℃、最低 1℃，降水日 20 天。