| 2025年 | 2026年 | 平年値 | |
| 8-11 | 27.5 | --- | 27.5 |
| 8-12 | 26.2 | --- | 26.2 |
| 8-13 | 27.1 | --- | 27.1 |
| 8-14 | 28 | --- | 28 |
| 8-15 | 28.3 | --- | 28.3 |
| 8-16 | 28.1 | --- | 28.1 |
| 8-17 | 28.7 | --- | 28.7 |
| 8-18 | 28.5 | --- | 28.5 |
| 8-19 | 28.6 | --- | 28.6 |
| 8-20 | 29 | --- | 29 |
| 8-21 | 29.1 | --- | 29.1 |
| 8-22 | 28.6 | --- | 28.6 |
| 8-23 | 28.1 | --- | 28.1 |
| 8-24 | 27.9 | --- | 27.9 |
| 8-25 | 28.6 | --- | 28.6 |