# Mill Valley king tides and high water in 2023

> In 2023, NOAA's San Francisco tide gauge recorded water high enough for FloodRoute's model to put at least one Mill Valley road at risk on 97 days. The highest was 7.66 ft on Thursday, January 5, 2023, 1.41 ft above the tide tables, with 13 roads at risk, including Ryan Avenue, Plymouth Avenue and Park Terrace.

**Estimates, not records of actual flooding.** Each day is NOAA's verified high water at the tide gauge, run through FloodRoute's flood model on today's roads and elevations, in dry weather. Drains, levees, tide gates, rain, road changes and elevation error all mean real conditions differed. Not for property, real-estate, insurance, lending, engineering or legal decisions.

## Every day with roads at risk (97)

| Date | High water (San Francisco gauge, ft MLLW) | vs tide tables | Roads at risk | Severity | Deepest streets (model) |
|---|---|---|---|---|---|
| Jan 2, 2023 | 6.67 | +0.40 ft | 1 | Possible | Sycamore Avenue |
| Jan 3, 2023 | 6.75 | +0.45 ft | 1 | Possible | Sycamore Avenue |
| Jan 4, 2023 | 7.23 | +0.94 ft | 9 | Likely | Ryan Avenue, Plymouth Avenue, Park Terrace |
| Jan 5, 2023 | 7.66 | +1.41 ft | 13 | Severe | Ryan Avenue, Plymouth Avenue, Park Terrace |
| Jan 6, 2023 | 6.76 | +0.57 ft | 1 | Possible | Sycamore Avenue |
| Jan 7, 2023 | 6.97 | +0.87 ft | 1 | Possible | Sycamore Avenue |
| Jan 8, 2023 | 6.74 | +0.79 ft | 1 | Possible | Sycamore Avenue |
| Jan 9, 2023 | 6.79 | +1.05 ft | 1 | Possible | Sycamore Avenue |
| Jan 16, 2023 | 6.96 | +1.15 ft | 1 | Possible | Sycamore Avenue |
| Jan 17, 2023 | 6.62 | +0.48 ft | 1 | Possible | Sycamore Avenue |
| Jan 18, 2023 | 6.71 | +0.24 ft | 1 | Possible | Sycamore Avenue |
| Jan 19, 2023 | 7.02 | +0.23 ft | 1 | Possible | Sycamore Avenue |
| Jan 20, 2023 | 7.22 | +0.19 ft | 9 | Likely | Ryan Avenue, Plymouth Avenue, Park Terrace |
| Jan 21, 2023 | 7.15 | ±0.00 ft | 1 | Likely | Sycamore Avenue |
| Jan 22, 2023 | 7.11 | +0.03 ft | 1 | Possible | Sycamore Avenue |
| Jan 23, 2023 | 6.83 | +0.04 ft | 1 | Possible | Sycamore Avenue |
| Feb 18, 2023 | 6.98 | +0.22 ft | 1 | Possible | Sycamore Avenue |
| Feb 19, 2023 | 7.08 | +0.26 ft | 1 | Possible | Sycamore Avenue |
| Feb 20, 2023 | 6.81 | +0.15 ft | 1 | Possible | Sycamore Avenue |
| Feb 24, 2023 | 6.68 | +0.80 ft | 1 | Possible | Sycamore Avenue |
| Mar 19, 2023 | 7.00 | +0.90 ft | 1 | Possible | Sycamore Avenue |
| Mar 20, 2023 | 6.65 | +0.59 ft | 1 | Possible | Sycamore Avenue |
| Mar 21, 2023 | 7.11 | +1.24 ft | 1 | Likely | Sycamore Avenue |
| Mar 22, 2023 | 7.07 | +1.27 ft | 1 | Possible | Sycamore Avenue |
| May 7, 2023 | 6.70 | +0.57 ft | 1 | Possible | Sycamore Avenue |
| May 17, 2023 | 6.76 | +0.50 ft | 1 | Possible | Sycamore Avenue |
| May 18, 2023 | 6.78 | +0.47 ft | 1 | Possible | Sycamore Avenue |
| May 20, 2023 | 6.59 | +0.34 ft | 1 | Possible | Sycamore Avenue |
| Jun 1, 2023 | 6.67 | +0.58 ft | 1 | Possible | Sycamore Avenue |
| Jun 2, 2023 | 6.80 | +0.47 ft | 1 | Possible | Sycamore Avenue |
| Jun 3, 2023 | 7.04 | +0.54 ft | 1 | Possible | Sycamore Avenue |
| Jun 5, 2023 | 7.32 | +0.74 ft | 9 | Likely | Ryan Avenue, Plymouth Avenue, Park Terrace |
| Jun 6, 2023 | 7.34 | +0.81 ft | 9 | Likely | Ryan Avenue, Plymouth Avenue, Park Terrace |
| Jun 7, 2023 | 7.18 | +0.85 ft | 9 | Likely | Ryan Avenue, Plymouth Avenue, Park Terrace |
| Jun 14, 2023 | 6.80 | +0.40 ft | 1 | Possible | Sycamore Avenue |
| Jun 15, 2023 | 6.82 | +0.38 ft | 1 | Possible | Sycamore Avenue |
| Jun 16, 2023 | 6.75 | +0.35 ft | 1 | Possible | Sycamore Avenue |
| Jun 17, 2023 | 6.82 | +0.53 ft | 1 | Possible | Sycamore Avenue |
| Jun 18, 2023 | 6.64 | +0.50 ft | 1 | Possible | Sycamore Avenue |
| Jun 30, 2023 | 6.91 | +0.43 ft | 1 | Possible | Sycamore Avenue |
| Jul 1, 2023 | 7.19 | +0.46 ft | 9 | Likely | Ryan Avenue, Plymouth Avenue, Park Terrace |
| Jul 2, 2023 | 7.51 | +0.59 ft | 10 | Likely | Ryan Avenue, Plymouth Avenue, Park Terrace |
| Jul 3, 2023 | 7.44 | +0.46 ft | 10 | Likely | Ryan Avenue, Plymouth Avenue, Park Terrace |
| Jul 5, 2023 | 7.34 | +0.47 ft | 9 | Likely | Ryan Avenue, Plymouth Avenue, Park Terrace |
| Jul 6, 2023 | 6.91 | +0.36 ft | 1 | Possible | Sycamore Avenue |
| Jul 15, 2023 | 6.61 | +0.27 ft | 1 | Possible | Sycamore Avenue |
| Jul 16, 2023 | 6.69 | +0.43 ft | 1 | Possible | Sycamore Avenue |
| Jul 17, 2023 | 6.60 | +0.44 ft | 1 | Possible | Sycamore Avenue |
| Jul 29, 2023 | 6.72 | +0.07 ft | 1 | Possible | Sycamore Avenue |
| Jul 30, 2023 | 7.09 | +0.17 ft | 1 | Possible | Sycamore Avenue |
| Jul 31, 2023 | 7.36 | +0.26 ft | 9 | Likely | Ryan Avenue, Plymouth Avenue, Park Terrace |
| Aug 1, 2023 | 7.37 | +0.26 ft | 9 | Likely | Ryan Avenue, Plymouth Avenue, Park Terrace |
| Aug 3, 2023 | 7.11 | +0.21 ft | 1 | Likely | Sycamore Avenue |
| Aug 13, 2023 | 6.73 | +0.60 ft | 1 | Possible | Sycamore Avenue |
| Aug 14, 2023 | 6.62 | +0.51 ft | 1 | Possible | Sycamore Avenue |
| Aug 27, 2023 | 6.67 | +0.16 ft | 1 | Possible | Sycamore Avenue |
| Aug 28, 2023 | 6.83 | +0.07 ft | 1 | Possible | Sycamore Avenue |
| Aug 29, 2023 | 6.99 | +0.12 ft | 1 | Possible | Sycamore Avenue |
| Aug 30, 2023 | 7.17 | +0.38 ft | 1 | Likely | Sycamore Avenue |
| Sep 1, 2023 | 7.05 | +0.54 ft | 1 | Possible | Sycamore Avenue |
| Sep 30, 2023 | 6.81 | +0.54 ft | 1 | Possible | Sycamore Avenue |
| Oct 1, 2023 | 7.02 | +0.65 ft | 1 | Possible | Sycamore Avenue |
| Oct 2, 2023 | 6.92 | +0.61 ft | 1 | Possible | Sycamore Avenue |
| Oct 3, 2023 | 6.74 | +0.63 ft | 1 | Possible | Sycamore Avenue |
| Oct 28, 2023 | 6.71 | +0.21 ft | 1 | Possible | Sycamore Avenue |
| Oct 29, 2023 | 6.81 | +0.22 ft | 1 | Possible | Sycamore Avenue |
| Oct 30, 2023 | 6.84 | +0.31 ft | 1 | Possible | Sycamore Avenue |
| Oct 31, 2023 | 6.73 | +0.40 ft | 1 | Possible | Sycamore Avenue |
| Nov 12, 2023 | 6.69 | +0.61 ft | 1 | Possible | Sycamore Avenue |
| Nov 13, 2023 | 6.96 | +0.75 ft | 1 | Possible | Sycamore Avenue |
| Nov 14, 2023 | 7.13 | +0.83 ft | 1 | Likely | Sycamore Avenue |
| Nov 15, 2023 | 7.30 | +1.00 ft | 9 | Likely | Ryan Avenue, Plymouth Avenue, Park Terrace |
| Nov 16, 2023 | 7.05 | +0.85 ft | 1 | Possible | Sycamore Avenue |
| Nov 17, 2023 | 6.93 | +0.95 ft | 1 | Possible | Sycamore Avenue |
| Nov 23, 2023 | 6.68 | +0.61 ft | 1 | Possible | Sycamore Avenue |
| Nov 24, 2023 | 6.97 | +0.56 ft | 1 | Possible | Sycamore Avenue |
| Nov 25, 2023 | 7.09 | +0.45 ft | 1 | Possible | Sycamore Avenue |
| Nov 26, 2023 | 7.34 | +0.61 ft | 9 | Likely | Ryan Avenue, Plymouth Avenue, Park Terrace |
| Nov 27, 2023 | 7.33 | +0.64 ft | 9 | Likely | Ryan Avenue, Plymouth Avenue, Park Terrace |
| Nov 28, 2023 | 7.21 | +0.67 ft | 9 | Likely | Ryan Avenue, Plymouth Avenue, Park Terrace |
| Nov 29, 2023 | 7.04 | +0.75 ft | 1 | Possible | Sycamore Avenue |
| Dec 11, 2023 | 6.83 | +0.42 ft | 1 | Possible | Sycamore Avenue |
| Dec 12, 2023 | 7.24 | +0.67 ft | 9 | Likely | Ryan Avenue, Plymouth Avenue, Park Terrace |
| Dec 13, 2023 | 7.20 | +0.54 ft | 9 | Likely | Ryan Avenue, Plymouth Avenue, Park Terrace |
| Dec 14, 2023 | 7.22 | +0.58 ft | 9 | Likely | Ryan Avenue, Plymouth Avenue, Park Terrace |
| Dec 15, 2023 | 7.07 | +0.58 ft | 1 | Possible | Sycamore Avenue |
| Dec 16, 2023 | 6.84 | +0.68 ft | 1 | Possible | Sycamore Avenue |
| Dec 20, 2023 | 7.01 | +1.28 ft | 1 | Possible | Sycamore Avenue |
| Dec 21, 2023 | 6.98 | +0.91 ft | 1 | Possible | Sycamore Avenue |
| Dec 22, 2023 | 7.23 | +0.86 ft | 9 | Likely | Ryan Avenue, Plymouth Avenue, Park Terrace |
| Dec 23, 2023 | 7.15 | +0.57 ft | 1 | Likely | Sycamore Avenue |
| Dec 24, 2023 | 7.15 | +0.46 ft | 1 | Likely | Sycamore Avenue |
| Dec 25, 2023 | 7.17 | +0.49 ft | 1 | Likely | Sycamore Avenue |
| Dec 26, 2023 | 7.23 | +0.64 ft | 9 | Likely | Ryan Avenue, Plymouth Avenue, Park Terrace |
| Dec 27, 2023 | 7.45 | +1.02 ft | 10 | Likely | Ryan Avenue, Plymouth Avenue, Park Terrace |
| Dec 28, 2023 | 7.08 | +0.87 ft | 1 | Possible | Sycamore Avenue |
| Dec 29, 2023 | 7.07 | +1.13 ft | 1 | Possible | Sycamore Avenue |

[All Mill Valley history](https://floodroute.com/ca/mill-valley/history.md) · [Live forecast](https://floodroute.com/ca/mill-valley.md)

Data: [CSV](https://floodroute.com/data/history/ca/mill-valley.csv) · [JSON](https://floodroute.com/data/history/ca/mill-valley.json) · Open Database License (ODbL) 1.0 (https://opendatacommons.org/licenses/odbl/1-0/) · Credit: FloodRoute (floodroute.com), © OpenStreetMap contributors, NOAA CO-OPS · [All towns](https://floodroute.com/data.md)

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Web version: https://floodroute.com/ca/mill-valley/history/2023 · Site index for AI agents: https://floodroute.com/llms.txt · Every page is available as Markdown: add `.md` to its URL.

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