# Larkspur flood forecast

California · part of [Marin County](https://floodroute.com/ca/marin-county.md)

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

> In Larkspur, 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 3 streets forecast to flood at the peak: Fifer Ave, Lucky Dr and Doherty Dr.

- 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/larkspur

## Flood windows: next 7 days

| Day | Time | Forecast | Peak tide | Streets |
|---|---|---|---|---|
| [Fri, Oct 23](https://floodroute.com/ca/larkspur/2026-10-23.md) | 9:20–11:20 AM PDT | Severe flooding likely | 6.2 ft | Fifer Ave, Lucky Dr, Doherty Dr |
| [Sat, Oct 24](https://floodroute.com/ca/larkspur/2026-10-24.md) | 9:20 AM–12:25 PM PDT | Severe flooding likely · king tide | 6.5 ft | Fifer Ave, Lucky Dr, Doherty Dr +1 more |
| [Sun, Oct 25](https://floodroute.com/ca/larkspur/2026-10-25.md) | 9:30 AM–1:40 PM PDT | Severe flooding likely · king tide | 6.8 ft | Casa Buena Dr, Sanford St, Fifer Ave +5 more |
| [Mon, Oct 26](https://floodroute.com/ca/larkspur/2026-10-26.md) | 9:45 AM–2:45 PM PDT | Severe flooding likely · king tide | 7.1 ft | Casa Buena Dr, Sanford St, Fifer Ave +6 more |
| [Tue, Oct 27](https://floodroute.com/ca/larkspur/2026-10-27.md) | 10:10 AM–3:40 PM PDT | Severe flooding likely · king tide | 7.2 ft | Casa Buena Dr, Sanford St, Fifer Ave +6 more |
| [Wed, Oct 28](https://floodroute.com/ca/larkspur/2026-10-28.md) | 10:40 AM–4:25 PM PDT | Severe flooding likely · king tide | 7.2 ft | Casa Buena Dr, Sanford St, Fifer Ave +6 more |

## Later in the next 30 days

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

## How this forecast works

FloodRoute combines NOAA tide predictions for the Sausalito station with the elevation of every road segment in Larkspur. 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 Larkspur flood days (iCal, updates itself): https://floodroute.com/cal/ca/larkspur.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 Larkspur?

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, 9 streets are forecast to flood: Casa Buena Dr, Sanford St, Fifer Ave, Lakeside Dr, Redwood Hwy, Lucky Dr, Doherty Dr, Riviera Circle and Sherwood Ct. The [live map](https://floodroute.com/ca/larkspur) shows every street, hour by hour.

### When is the next flood in Larkspur?

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/larkspur/2026-10-23).

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

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 Larkspur?

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 Larkspur?

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 [Larkspur flood calendar](https://floodroute.com/cal/ca/larkspur.ics) and flood days appear on your calendar automatically.

### How accurate is the Larkspur 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 Larkspur. 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)
- [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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FloodRoute provides estimates only. Never drive or walk through flood water. © Axiomic, LLC · contact@axiomic.ai