| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2026-04-01 | 阴 | 39°/27° | 0.0 mm |
| 2026-04-02 | 阴 | 39°/25° | 0.0 mm |
| 2026-04-03 | 阴 | 39°/25° | 0.0 mm |
| 2026-04-04 | 阴 | 40°/26° | 0.0 mm |
| 2026-04-05 | 阴 | 39°/27° | 0.0 mm |
| 2026-04-06 | 阴 | 40°/26° | 0.0 mm |
| 2026-04-07 | 阴 | 39°/25° | 0.0 mm |
| 2026-04-08 | 多云 | 41°/26° | 0.0 mm |
| 2026-04-09 | 阴 | 39°/25° | 0.0 mm |
| 2026-04-10 | 阴 | 39°/26° | 0.0 mm |
| 2026-04-11 | 晴天 | 39°/26° | 0.0 mm |
| 2026-04-12 | 晴天 | 40°/24° | 0.0 mm |
| 2026-04-13 | 晴天 | 41°/25° | 0.0 mm |
| 2026-04-14 | 晴间多云 | 41°/26° | 0.0 mm |
| 2026-04-15 | 阴 | 42°/26° | 0.0 mm |
| 2026-04-16 | 小毛毛雨 | 40°/26° | 0.6 mm |
| 2026-04-17 | 阵雨 | 40°/26° | 4.7 mm |
| 2026-04-18 | 毛毛雨 | 39°/25° | 1.3 mm |
| 2026-04-19 | 中阵雨 | 37°/24° | 6.5 mm |
| 2026-04-20 | 大毛毛雨 | 36°/26° | 2.0 mm |
| 2026-04-21 | 大毛毛雨 | 37°/26° | 2.4 mm |
| 2026-04-22 | 小毛毛雨 | 38°/26° | 0.2 mm |
| 2026-04-23 | 小毛毛雨 | 39°/27° | 0.2 mm |
| 2026-04-24 | 阴 | 38°/26° | 0.0 mm |
| 2026-04-25 | 小毛毛雨 | 40°/27° | 0.6 mm |
| 2026-04-26 | 毛毛雨 | 38°/26° | 1.0 mm |
| 2026-04-27 | 小毛毛雨 | 37°/25° | 0.6 mm |
| 2026-04-28 | 小毛毛雨 | 37°/26° | 0.6 mm |
| 2026-04-29 | 大毛毛雨 | 38°/27° | 1.1 mm |
| 2026-04-30 | 中阵雨 | 37°/25° | 7.4 mm |
2026年04月成田共记录 30 天，平均最高 38℃、最低 25℃，降水日 14 天。