# Marin County flood forecast

California

**Clear today** · Next flood window Fri 9:20–11:20 AM

> In Marin County, roads start to flood when the tide at NOAA's Sausalito station passes about 6.0 ft (MLLW). Next flood: Fri, Oct 23, 9:20–11:20 AM PDT (severe flooding likely), with 11 streets forecast to flood at the peak, including Fifer Ave, Paradise Dr and Bahia Way.

- Tide now: 5.1 ft, falling
- Next king tide: Sat, Oct 24, 10:49 AM PDT · 5.7 ft
- Bay running +1.1 ft above predicted tides · San Francisco gauge, 9:00 PM
- Live map and tide scrubber: https://floodroute.com/ca/marin-county

## Flood windows: next 7 days

| Day | Time | Forecast | Peak tide | Streets |
|---|---|---|---|---|
| [Fri, Oct 23](https://floodroute.com/ca/marin-county/2026-10-23.md) | 9:20–11:20 AM PDT | Severe flooding likely | 6.2 ft | Fifer Ave, Paradise Dr, Bahia Way +8 more |
| [Sat, Oct 24](https://floodroute.com/ca/marin-county/2026-10-24.md) | 9:20 AM–12:25 PM PDT | Severe flooding likely · king tide | 6.5 ft | Fifer Ave, Paradise Dr, Bahia Way +10 more |
| [Sun, Oct 25](https://floodroute.com/ca/marin-county/2026-10-25.md) | 9:30 AM–1:40 PM PDT | Severe flooding likely · king tide | 6.8 ft | Redwood Hwy, Edgewater Rd, Casa Buena Dr +127 more |
| [Mon, Oct 26](https://floodroute.com/ca/marin-county/2026-10-26.md) | 9:45 AM–2:45 PM PDT | Severe flooding likely · king tide | 7.1 ft | Redwood Hwy, Edgewater Rd, Casa Buena Dr +130 more |
| [Tue, Oct 27](https://floodroute.com/ca/marin-county/2026-10-27.md) | 10:10 AM–3:40 PM PDT | Severe flooding likely · king tide | 7.2 ft | Redwood Hwy, Edgewater Rd, Casa Buena Dr +135 more |
| [Wed, Oct 28](https://floodroute.com/ca/marin-county/2026-10-28.md) | 10:40 AM–4:25 PM PDT | Severe flooding likely · king tide | 7.2 ft | Redwood Hwy, Edgewater Rd, Casa Buena Dr +135 more |

## Later in the next 30 days

| Day | Time | Forecast | Peak tide | Streets |
|---|---|---|---|---|
| [Thu, Oct 29](https://floodroute.com/ca/marin-county/2026-10-29.md) | 11:30 AM–4:55 PM PDT | Severe flooding likely · king tide | 7.1 ft | Redwood Hwy, Edgewater Rd, Casa Buena Dr +130 more |
| [Fri, Oct 30](https://floodroute.com/ca/marin-county/2026-10-30.md) | 12:35–5:10 PM PDT | Severe flooding likely · king tide | 6.8 ft | Redwood Hwy, Edgewater Rd, Casa Buena Dr +124 more |
| [Sat, Oct 31](https://floodroute.com/ca/marin-county/2026-10-31.md) | 2:15–5:15 PM PDT | Severe flooding likely · king tide | 6.4 ft | Fifer Ave, Paradise Dr, Bahia Way +8 more |
| [Wed, Nov 4](https://floodroute.com/ca/marin-county/2026-11-04.md) | 7:15–9:10 AM PST | Severe flooding likely | 6.2 ft | Fifer Ave, Paradise Dr, Bahia Way +8 more |
| [Thu, Nov 5](https://floodroute.com/ca/marin-county/2026-11-05.md) | 7:20–10:15 AM PST | Severe flooding likely · king tide | 6.5 ft | Fifer Ave, Paradise Dr, Bahia Way +10 more |
| [Fri, Nov 6](https://floodroute.com/ca/marin-county/2026-11-06.md) | 7:40–11:15 AM PST | Severe flooding likely · king tide | 6.7 ft | Fifer Ave, Paradise Dr, Bahia Way +10 more |
| [Sat, Nov 7](https://floodroute.com/ca/marin-county/2026-11-07.md) | 8:00 AM–12:00 PM PST | Severe flooding likely · king tide | 6.8 ft | Redwood Hwy, Edgewater Rd, Casa Buena Dr +124 more |
| [Sun, Nov 8](https://floodroute.com/ca/marin-county/2026-11-08.md) | 8:20 AM–12:30 PM PST | Severe flooding likely · king tide | 6.8 ft | Redwood Hwy, Edgewater Rd, Casa Buena Dr +124 more |
| [Mon, Nov 9](https://floodroute.com/ca/marin-county/2026-11-09.md) | 8:50 AM–12:55 PM PST | Severe flooding likely · king tide | 6.8 ft | Redwood Hwy, Edgewater Rd, Casa Buena Dr +124 more |
| [Tue, Nov 10](https://floodroute.com/ca/marin-county/2026-11-10.md) | 9:20 AM–1:10 PM PST | Severe flooding likely · king tide | 6.7 ft | Fifer Ave, Paradise Dr, Bahia Way +10 more |
| [Wed, Nov 11](https://floodroute.com/ca/marin-county/2026-11-11.md) | 10:00 AM–1:20 PM PST | Severe flooding likely · king tide | 6.5 ft | Fifer Ave, Paradise Dr, Bahia Way +10 more |
| [Thu, Nov 12](https://floodroute.com/ca/marin-county/2026-11-12.md) | 10:50 AM–1:25 PM PST | Severe flooding likely | 6.3 ft | Fifer Ave, Paradise Dr, Bahia Way +8 more |
| [Fri, Nov 13](https://floodroute.com/ca/marin-county/2026-11-13.md) | 12:10–1:30 PM PST | Severe flooding likely | 6.1 ft | Fifer Ave, Paradise Dr, Bahia Way +7 more |
| [Fri, Nov 20](https://floodroute.com/ca/marin-county/2026-11-20.md) | 7:00–8:50 AM PST | Severe flooding likely | 6.2 ft | Fifer Ave, Paradise Dr, Bahia Way +8 more |

## How this forecast works

FloodRoute combines NOAA tide predictions for the Sausalito station with the elevation of every road segment in Marin County. When the predicted water level rises above a road's lowest point, it's marked — amber for possible, orange for likely, red for severe. The NOAA San Francisco gauge shows how far the water is actually running above or below the tide tables; that difference is carried into the forecast and fades over the following days. Recent rain raises the next 24 hours. After each high tide, streets stay marked a little longer, because water drains off the road more slowly than the tide falls.

**Estimates only.** Never drive through flood water — six inches can float a car. Follow local authorities.

Tide source: [NOAA station 9414806 (Sausalito)](https://tidesandcurrents.noaa.gov/noaatidepredictions.html?id=9414806). Updated 10:13 PM PDT. Times are America/Los Angeles time.

## Calendar, alerts and embeds

- Calendar feed of Marin County flood days (iCal, updates itself): https://floodroute.com/cal/ca/marin-county.ics
- FloodRoute for iPhone (free; Pro adds street-level alerts for your saved places and commute): https://apps.apple.com/app/id6757653475
- Embed this live map on a news or neighborhood site: https://floodroute.com/press#embed

## Frequently asked questions

### Which roads flood in Marin County?

The worst flood forecast in the next 30 days is Wed, Oct 28, 10:40 AM–4:25 PM PDT (severe flooding likely). At its peak, 138 streets are forecast to flood: Redwood Hwy, Edgewater Rd, Casa Buena Dr, Yolo St, Conow St, Echo Ave, Sonoma St, Dolores St, Du Bois St, Irwin St and 128 more streets. The [live map](https://floodroute.com/ca/marin-county) shows every street, hour by hour.

### When is the next flood in Marin County?

Fri, Oct 23, 9:20–11:20 AM PDT: severe flooding likely, peaking around 10:24 AM. FloodRoute forecasts 19 more flood windows in the next 30 days. See the [street-by-street forecast for that day](https://floodroute.com/ca/marin-county/2026-10-23).

### How high does the tide have to be to flood roads in Marin County?

Roads start to flood when the tide at NOAA's Sausalito station passes about 6.0 ft (MLLW). Higher tides flood more streets, for longer. FloodRoute marks flooding as possible when the water is less than 0.5 ft above a road's low point, likely up to 1.5 ft, and severe at 1.5 ft or more.

### When is the next king tide in Marin County?

Sat, Oct 24 at 10:49 AM PDT: a 5.7 ft high tide predicted at NOAA's Sausalito station. FloodRoute calls a high tide a king tide when it is more than 0.7 ft above the station's mean higher high water (MHHW).

### How can I get flood alerts for Marin County?

The free FloodRoute iPhone app gives you a heads-up before flood windows in your home town; FloodRoute Pro adds street-level alerts for your saved places and your commute. Without the app, subscribe to the [Marin County flood calendar](https://floodroute.com/cal/ca/marin-county.ics) and flood days appear on your calendar automatically.

### How accurate is the Marin County flood forecast?

It's an estimate built from NOAA tide predictions for the Sausalito station, corrected with live readings from the NOAA San Francisco gauge, and the measured elevation of every road segment in Marin County. Wind, storm surge and blocked drains can change what actually floods. Never drive through flood water.

## Nearby in Marin County

- [Sausalito](https://floodroute.com/ca/sausalito.md)
- [Mill Valley](https://floodroute.com/ca/mill-valley.md)
- [Tam Junction](https://floodroute.com/ca/tam-junction.md)
- [Tiburon](https://floodroute.com/ca/tiburon.md)
- [Belvedere](https://floodroute.com/ca/belvedere.md)
- [Corte Madera](https://floodroute.com/ca/corte-madera.md)
- [Larkspur](https://floodroute.com/ca/larkspur.md)
- [San Rafael](https://floodroute.com/ca/san-rafael.md)
- [Santa Venetia](https://floodroute.com/ca/santa-venetia.md)
- [Novato](https://floodroute.com/ca/novato.md)

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

FloodRoute provides estimates only. Never drive or walk through flood water. © Axiomic, LLC · contact@axiomic.ai