| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2026-04-01 | 阴 | 12°/3° | 0.0 mm |
| 2026-04-02 | 阴 | 6°/3° | 0.0 mm |
| 2026-04-03 | 阴 | 13°/1° | 0.0 mm |
| 2026-04-04 | 小毛毛雨 | 9°/2° | 0.5 mm |
| 2026-04-05 | 毛毛雨 | 14°/3° | 1.3 mm |
| 2026-04-06 | 雾 | 4°/2° | 0.0 mm |
| 2026-04-07 | 小雨 | 8°/1° | 11.1 mm |
| 2026-04-08 | 小毛毛雨 | 10°/0° | 0.1 mm |
| 2026-04-09 | 阴 | 13°/4° | 0.0 mm |
| 2026-04-10 | 中雨 | 12°/5° | 10.6 mm |
| 2026-04-11 | 小毛毛雨 | 9°/3° | 1.8 mm |
| 2026-04-12 | 小毛毛雨 | 9°/2° | 0.1 mm |
| 2026-04-13 | 小毛毛雨 | 11°/2° | 0.1 mm |
| 2026-04-14 | 阴 | 14°/3° | 0.0 mm |
| 2026-04-15 | 小毛毛雨 | 13°/3° | 0.2 mm |
| 2026-04-16 | 小毛毛雨 | 15°/4° | 0.2 mm |
| 2026-04-17 | 阴 | 10°/2° | 0.0 mm |
| 2026-04-18 | 小毛毛雨 | 14°/3° | 0.1 mm |
| 2026-04-19 | 阴 | 16°/6° | 0.0 mm |
| 2026-04-20 | 阴 | 10°/4° | 0.0 mm |
| 2026-04-21 | 中阵雨 | 12°/5° | 27.6 mm |
| 2026-04-22 | 阴 | 14°/3° | 0.0 mm |
| 2026-04-23 | 阴 | 13°/2° | 0.0 mm |
| 2026-04-24 | 阴 | 9°/1° | 0.0 mm |
| 2026-04-25 | 阴 | 8°/0° | 0.0 mm |
| 2026-04-26 | 阴 | 11°/4° | 0.0 mm |
| 2026-04-27 | 阴 | 13°/5° | 0.0 mm |
| 2026-04-28 | 小毛毛雨 | 11°/3° | 0.9 mm |
| 2026-04-29 | 小毛毛雨 | 11°/1° | 1.2 mm |
| 2026-04-30 | 阴 | 16°/3° | 0.0 mm |
2026年04月苫小牧市共记录 30 天，平均最高 11℃、最低 2℃，降水日 14 天。