| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2026-04-01 | 中雨 | 17°/11° | 14.1 mm |
| 2026-04-02 | 中雨 | 15°/9° | 31.6 mm |
| 2026-04-03 | 阴 | 18°/10° | 0.0 mm |
| 2026-04-04 | 阵雨 | 17°/13° | 13.8 mm |
| 2026-04-05 | 阵雨 | 22°/15° | 11.0 mm |
| 2026-04-06 | 阴 | 23°/15° | 0.0 mm |
| 2026-04-07 | 毛毛雨 | 19°/11° | 2.1 mm |
| 2026-04-08 | 晴天 | 18°/9° | 0.0 mm |
| 2026-04-09 | 阴 | 18°/13° | 0.0 mm |
| 2026-04-10 | 阵雨 | 19°/16° | 3.4 mm |
| 2026-04-11 | 阴 | 27°/16° | 0.0 mm |
| 2026-04-12 | 阴 | 22°/16° | 0.0 mm |
| 2026-04-13 | 阴 | 23°/16° | 0.0 mm |
| 2026-04-14 | 阴 | 24°/16° | 0.0 mm |
| 2026-04-15 | 中阵雨 | 23°/16° | 12.4 mm |
| 2026-04-16 | 小雨 | 23°/11° | 5.1 mm |
| 2026-04-17 | 阴 | 19°/10° | 0.0 mm |
| 2026-04-18 | 阴 | 21°/14° | 0.0 mm |
| 2026-04-19 | 阴 | 26°/16° | 0.0 mm |
| 2026-04-20 | 阴 | 24°/16° | 0.0 mm |
| 2026-04-21 | 阴 | 25°/16° | 0.0 mm |
| 2026-04-22 | 小毛毛雨 | 21°/15° | 0.6 mm |
| 2026-04-23 | 阵雨 | 20°/13° | 14.3 mm |
| 2026-04-24 | 中雨 | 20°/13° | 8.0 mm |
| 2026-04-25 | 阴 | 18°/12° | 0.0 mm |
| 2026-04-26 | 阴 | 22°/13° | 0.0 mm |
| 2026-04-27 | 强阵雨 | 18°/14° | 31.2 mm |
| 2026-04-28 | 阴 | 22°/14° | 0.0 mm |
| 2026-04-29 | 小雨 | 19°/14° | 3.2 mm |
| 2026-04-30 | 毛毛雨 | 15°/13° | 1.7 mm |
2026年04月市川市共记录 30 天，平均最高 20℃、最低 13℃，降水日 14 天。