| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2025-04-01 | 小毛毛雨 | 10°/0° | 0.1 mm |
| 2025-04-02 | 中雨 | 9°/2° | 17.8 mm |
| 2025-04-03 | 小毛毛雨 | 8°/1° | 0.5 mm |
| 2025-04-04 | 小毛毛雨 | 9°/-1° | 0.1 mm |
| 2025-04-05 | 毛毛雨 | 10°/0° | 1.4 mm |
| 2025-04-06 | 毛毛雨 | 14°/2° | 0.6 mm |
| 2025-04-07 | 阴 | 12°/1° | 0.0 mm |
| 2025-04-08 | 阴 | 17°/4° | 0.0 mm |
| 2025-04-09 | 阴 | 17°/3° | 0.0 mm |
| 2025-04-10 | 阵雨 | 15°/6° | 7.9 mm |
| 2025-04-11 | 毛毛雨 | 14°/6° | 2.8 mm |
| 2025-04-12 | 阵雨 | 16°/4° | 6.3 mm |
| 2025-04-13 | 中阵雨 | 10°/0° | 68.4 mm |
| 2025-04-14 | 中阵雨 | 9°/0° | 11.4 mm |
| 2025-04-15 | 大毛毛雨 | 5°/-1° | 4.9 mm |
| 2025-04-16 | 阴 | 15°/-1° | 0.0 mm |
| 2025-04-17 | 小毛毛雨 | 17°/7° | 0.3 mm |
| 2025-04-18 | 雷阵雨 | 17°/10° | 10.7 mm |
| 2025-04-19 | 阴 | 20°/10° | 0.0 mm |
| 2025-04-20 | 毛毛雨 | 15°/10° | 1.6 mm |
| 2025-04-21 | 小毛毛雨 | 21°/10° | 0.2 mm |
| 2025-04-22 | 中阵雨 | 15°/8° | 22.5 mm |
| 2025-04-23 | 中雨 | 15°/11° | 11.0 mm |
| 2025-04-24 | 阴 | 20°/8° | 0.0 mm |
| 2025-04-25 | 阴 | 14°/3° | 0.0 mm |
| 2025-04-26 | 阴 | 15°/2° | 0.0 mm |
| 2025-04-27 | 阴 | 19°/6° | 0.0 mm |
| 2025-04-28 | 小雨 | 10°/5° | 9.1 mm |
| 2025-04-29 | 小毛毛雨 | 13°/4° | 0.4 mm |
| 2025-04-30 | 阴 | 19°/4° | 0.0 mm |
2025年04月土佐市共记录 30 天，平均最高 14℃、最低 4℃，降水日 20 天。