近 25 日資料
| 資料日期 | 蓄水率(%) | 有效蓄水量(萬立方公尺) |
|---|---|---|
| 2026-10-30 | 96.3 | 2,883.72 |
| 2026-10-29 | 95.5 | 2,859.60 |
| 2026-10-28 | 94.1 | 2,816.78 |
| 2026-10-27 | 92.8 | 2,779.39 |
| 2026-10-26 | 91.9 | 2,752.36 |
| 2026-10-24 | 91.6 | 2,740.58 |
| 2026-10-22 | 90.7 | 2,715.42 |
| 2026-10-21 | 91.3 | 2,732.18 |
| 2026-10-20 | 91.9 | 2,750.67 |
| 2026-10-19 | 92.2 | 2,759.10 |
| 2026-10-16 | 93.5 | 2,799.75 |
| 2026-10-15 | 94 | 2,813.37 |
| 2026-10-14 | 94.3 | 2,823.61 |
| 2026-10-13 | 94.7 | 2,835.58 |
| 2026-10-12 | 95.2 | 2,849.29 |
| 2026-10-09 | 96.5 | 2,887.18 |
| 2026-10-08 | 96.7 | 2,895.82 |
| 2026-10-07 | 97 | 2,902.75 |
| 2026-10-06 | 97.3 | 2,913.16 |
| 2026-10-05 | 97.6 | 2,921.85 |
| 2026-10-04 | 98 | 2,932.29 |
| 2026-10-02 | 98.4 | 2,944.51 |
| 2026-10-01 | 98.6 | 2,951.50 |
| 2026-09-30 | 98.9 | 2,960.25 |
| 2026-09-29 | 99.1 | 2,967.26 |
來源:水利署「水庫水情資料」與「水庫每日營運狀況」 ↗。本頁每日取永和山水庫當日最新一筆逐時觀測的有效蓄水量,除以每日營運狀況檔的有效容量(2,993.43 萬立方公尺)算出蓄水率;當日全台可對照水庫不足 50 座的日期整日不採用,蓄水率超過 105% 的異常值排除。