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San Juan water levels in 2025
Annual rank3 / 57
vs. average7.6 cm
Highest monthly peak0.57 mOctober 2025
Monthly mean vs. previous year
| Month | 2025 (cm) | 2024 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | 1.2 | 2.6 | -1.4 | 0.36 |
| Feb | 2.0 | 6.0 | -4.0 | 0.36 |
| Mar | 3.6 | 1.1 | 2.5 | 0.37 |
| Apr | 2.8 | 2.6 | 0.2 | 0.43 |
| May | 3.2 | 3.1 | 0.1 | 0.41 |
| Jun | 7.1 | 5.7 | 1.4 | 0.47 |
| Jul | 7.4 | 5.3 | 2.1 | 0.47 |
| Aug | 12.8 | 3.5 | 9.3 | 0.49 |
| Sep | 17.5 | 11.4 | 6.1 | 0.53 |
| Oct | 18.2 | 12.8 | 5.4 | 0.57 |
| Nov | 16.6 | 14.4 | 2.2 | 0.57 |
| Dec | 14.6 | 3.3 | 11.3 | 0.53 |
Nearby years (cm vs. average)
+5.0
+4.4
+7.2
+8.2
+4.7
+7.6
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 2025 annual mean water level ranked 3 of 57 years (7.6 cm vs. the period average).