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Humboldt Bay (North Spit) water levels in 2025
Annual rank2 / 46
vs. average12.6 cm
Highest monthly peak1.74 mNovember 2025
Monthly mean vs. previous year
| Month | 2025 (cm) | 2024 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | 14.3 | 30.7 | -16.4 | 1.47 |
| Feb | 17.3 | 33.7 | -16.4 | 1.50 |
| Mar | 19.8 | 23.1 | -3.3 | 1.65 |
| Apr | 11.4 | 6.9 | 4.5 | 1.65 |
| May | 6.6 | 4.3 | 2.3 | 1.53 |
| Jun | 10.8 | 7.1 | 3.7 | 1.51 |
| Jul | 19.2 | 13.4 | 5.8 | 1.53 |
| Aug | 16.3 | 14.4 | 1.9 | 1.33 |
| Sep | 23.5 | 16.8 | 6.7 | 1.42 |
| Oct | 22.5 | 15.9 | 6.6 | 1.62 |
| Nov | 25.1 | 19.9 | 5.2 | 1.74 |
| Dec | 26.8 | 26.3 | 0.5 | 1.69 |
Nearby years (cm vs. average)
+6.8
+7.0
+7.2
+15.5
+12.5
+12.6
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 2025 annual mean water level ranked 2 of 46 years (12.6 cm vs. the period average).