| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2026-04-01 | 阵雨 | 12°/10° | 11.8 mm |
| 2026-04-02 | 小毛毛雨 | 17°/8° | 0.2 mm |
| 2026-04-03 | 阴 | 18°/9° | 0.0 mm |
| 2026-04-04 | 强阵雨 | 18°/13° | 40.1 mm |
| 2026-04-05 | 小毛毛雨 | 17°/11° | 0.2 mm |
| 2026-04-06 | 阴 | 19°/11° | 0.0 mm |
| 2026-04-07 | 阵雨 | 16°/7° | 4.7 mm |
| 2026-04-08 | 阴 | 17°/6° | 0.0 mm |
| 2026-04-09 | 阵雨 | 17°/10° | 3.3 mm |
| 2026-04-10 | 强阵雨 | 20°/13° | 43.8 mm |
| 2026-04-11 | 阴 | 20°/10° | 0.0 mm |
| 2026-04-12 | 小毛毛雨 | 22°/13° | 1.1 mm |
| 2026-04-13 | 小雨 | 17°/13° | 7.5 mm |
| 2026-04-14 | 中阵雨 | 16°/15° | 24.7 mm |
| 2026-04-15 | 中阵雨 | 17°/14° | 21.1 mm |
| 2026-04-16 | 阴 | 21°/12° | 0.0 mm |
| 2026-04-17 | 阴 | 20°/13° | 0.0 mm |
| 2026-04-18 | 大毛毛雨 | 18°/15° | 4.0 mm |
| 2026-04-19 | 中阵雨 | 16°/14° | 19.4 mm |
| 2026-04-20 | 毛毛雨 | 22°/14° | 0.7 mm |
| 2026-04-21 | 阴 | 20°/13° | 0.0 mm |
| 2026-04-22 | 中雨 | 20°/12° | 11.0 mm |
| 2026-04-23 | 阵雨 | 14°/13° | 42.9 mm |
| 2026-04-24 | 毛毛雨 | 15°/11° | 5.1 mm |
| 2026-04-25 | 小毛毛雨 | 21°/12° | 1.2 mm |
| 2026-04-26 | 强阵雨 | 17°/13° | 30.5 mm |
| 2026-04-27 | 阴 | 21°/13° | 0.0 mm |
| 2026-04-28 | 小毛毛雨 | 21°/13° | 0.1 mm |
| 2026-04-29 | 毛毛雨 | 19°/12° | 4.1 mm |
| 2026-04-30 | 中阵雨 | 14°/12° | 23.9 mm |
2026年04月岛原市共记录 30 天，平均最高 18℃、最低 11℃，降水日 22 天。