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Port San Luis water levels in 2025
Annual rank13 / 75
vs. average3.2 cm
Highest monthly peak1.39 mDecember 2025
Monthly mean vs. previous year
| Month | 2025 (cm) | 2024 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | -2.7 | 5.4 | -8.1 | 1.12 |
| Feb | -5.7 | 7.3 | -13.0 | 0.98 |
| Mar | -6.4 | -1.4 | -5.0 | 1.03 |
| Apr | -5.8 | -4.9 | -0.9 | 1.12 |
| May | -0.9 | -3.5 | 2.6 | 1.20 |
| Jun | 3.4 | 2.7 | 0.7 | 1.28 |
| Jul | 5.2 | 4.8 | 0.4 | 1.19 |
| Aug | 6.5 | 6.0 | 0.5 | 1.15 |
| Sep | 10.4 | 8.0 | 2.4 | 0.98 |
| Oct | 7.6 | 6.5 | 1.1 | 1.18 |
| Nov | 8.4 | -2.4 | 10.8 | 1.21 |
| Dec | 9.4 | -1.0 | 10.4 | 1.39 |
Nearby years (cm vs. average)
+3.8
+2.8
+2.6
+8.0
+3.0
+3.2
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 2025 annual mean water level ranked 13 of 75 years (3.2 cm vs. the period average).