Corkscrew Slough tide chart
California · near Redwood City (2 mi) · NOAA station 9414505 · times in local time (PDT)
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Tides today, Sunday, October 11
- High 1:43 AM 7.3 ft
- Low 7:36 AM 1.8 ft
- High 1:21 PM 8.3 ft
- Low 8:25 PM 0.0 ft
Were today's predicted times right where you were?
Sunrise 7:14 AM · Sunset 6:38 PM · New moon (0%)
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Fishing forecast
Hour by hour at Corkscrew SloughBest times
6:00 PM–7:00 PM
New moon (0% lit)
Rain radar
Biting around here in October
- Striped bass In seasonSF Bay and Delta on moving water
- Calico bass In seasonKelp and rocks in Southern California
- Yellowtail In seasonSouthern California, warm water
General seasonal guide for California. Seasons, sizes and limits vary, so check your state rules before keeping fish.
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Weather and conditions at Corkscrew Slough
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Marine forecast: San Francisco Bay South of the Bay Bridge
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- Water temperature —
- Nearest weather buoy San Francisco Bar, CA (142) (30 mi): waves, wind and water temperature
Marine radio: weather channels and VHF
NOAA Weather Radio
- 162.400 MHz WX2 KHB49, San Francisco, CA (8 mi)
- 162.550 MHz WX1 KEC49, Monterey, CA (30 mi)
To get alerts on a weather alert radio, program county code 006081 (San Mateo).
VHF marine channels
- Ch 16 Distress, safety and calling
- Ch 9 Boater-to-boater calling
- Ch 22A Coast Guard safety broadcasts
- Ch 13 Bridge-to-bridge (big ships, drawbridges)
- Ch 68, 69, 71, 72, 78A Recreational chat
Weather radio broadcasts are continuous; VHF channels are the US standard. Local harbors and bridges may use others, so check your chart.
Live readings from NOAA and the National Weather Service, loaded when you open this page.
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Tide times this week
| Day | High and low tides | Sunrise / sunset | Moon |
|---|---|---|---|
| Sun Oct 11 | H 1:43 AM 7.3 ftL 7:36 AM 1.8 ftH 1:21 PM 8.3 ftL 8:25 PM 0.0 ft | 7:14 AM / 6:38 PM | New moon (0%) |
| Mon Oct 12 | H 2:35 AM 7.1 ftL 8:12 AM 2.4 ftH 1:49 PM 8.2 ftL 9:03 PM 0.0 ft | 7:15 AM / 6:37 PM | New moon (2%) |
| Tue Oct 13 | H 3:27 AM 6.9 ftL 8:48 AM 2.8 ftH 2:17 PM 8.1 ftL 9:43 PM 0.1 ft | 7:16 AM / 6:36 PM | Waxing crescent (6%) |
| Wed Oct 14 | H 4:22 AM 6.7 ftL 9:26 AM 3.2 ftH 2:49 PM 7.9 ftL 10:27 PM 0.2 ft | 7:16 AM / 6:34 PM | Waxing crescent (13%) |
| Thu Oct 15 | H 5:24 AM 6.5 ftL 10:11 AM 3.6 ftH 3:27 PM 7.7 ftL 11:16 PM 0.4 ft | 7:17 AM / 6:33 PM | Waxing crescent (20%) |
| Fri Oct 16 | H 6:35 AM 6.4 ftL 11:10 AM 3.8 ftH 4:14 PM 7.4 ft | 7:18 AM / 6:31 PM | Waxing crescent (30%) |
| Sat Oct 17 | L 12:14 AM 0.6 ftH 7:51 AM 6.5 ftL 12:38 PM 3.8 ftH 5:13 PM 7.2 ft | 7:19 AM / 6:30 PM | First quarter (40%) |
Tidal currents near Corkscrew Slough
From NOAA's current predictions for Redwood Creek at 4 ft depth, 1.3 miles away. Slack is when the current turns and the water is calmest; flood runs in with the rising tide and ebb runs out with the falling tide. Times are the peak of each run, in knots. The flood runs toward the SW (234°) and the ebb toward the NE (51°). The strongest current this week is 1.1 knots.
| Day | Slack water and peak currents |
|---|---|
| Sun Oct 11 | Slack 2:04 AMEbb 4:38 AM 0.8 knSlack 7:33 AMFlood 10:42 AM 1.0 knSlack 1:38 PMEbb 4:45 PM 1.1 knSlack 8:41 PMFlood 11:58 PM 1.0 kn |
| Mon Oct 12 | Slack 2:59 AMEbb 5:32 AM 0.7 knSlack 8:16 AMFlood 11:13 AM 1.0 knSlack 2:10 PMEbb 5:16 PM 1.0 knSlack 9:24 PM |
| Tue Oct 13 | Flood 12:51 AM 0.9 knSlack 3:53 AMEbb 6:26 AM 0.7 knSlack 8:58 AMFlood 11:48 AM 0.9 knSlack 2:42 PMEbb 5:46 PM 1.0 knSlack 10:06 PM |
| Wed Oct 14 | Flood 1:46 AM 0.8 knSlack 4:49 AMEbb 7:18 AM 0.6 knSlack 9:39 AMFlood 12:26 PM 0.9 knSlack 3:15 PMEbb 6:16 PM 0.9 knSlack 10:50 PM |
| Thu Oct 15 | Flood 2:46 AM 0.7 knSlack 5:47 AMEbb 8:09 AM 0.5 knSlack 10:21 AMFlood 1:07 PM 0.8 knSlack 3:51 PMEbb 6:51 PM 0.8 knSlack 11:35 PM |
| Fri Oct 16 | Flood 3:51 AM 0.6 knSlack 6:46 AMEbb 9:01 AM 0.5 knSlack 11:07 AMFlood 1:51 PM 0.8 knSlack 4:30 PMEbb 7:29 PM 0.8 kn |
| Sat Oct 17 | Slack 12:20 AMFlood 4:54 AM 0.6 knSlack 7:42 AMEbb 9:55 AM 0.4 knSlack 12:00 PMFlood 2:39 PM 0.7 knSlack 5:15 PMEbb 8:13 PM 0.7 kn |
Current predictions can differ a lot over short distances: check the station location on NOAA before planning a passage.
Best fishing times at Corkscrew Slough
The bite score (0 to 100) adds up what anglers watch most: moving water (a tide running harder than usual here scores higher), solunar periods (major periods of about two hours centred on the moon overhead or underfoot, minor periods of about an hour on moonrise and moonset), dawn and dusk light, and how close it is to the new or full moon. Best times are the stretches of the day scoring near that day's top.
| Day | Bite score | Best times | Major periods | Minor periods |
|---|---|---|---|---|
| Sun Oct 11 | 71 · Good | 6:00 PM–7:00 PM | 12:27 AM–2:27 AM, 12:49 PM–2:49 PM | 8:01 AM–9:01 AM, 6:30 PM–7:30 PM |
| Mon Oct 12 | 65 · Good | 6:00 PM–8:00 PM, 2:00 PM–3:00 PM | 1:12 AM–3:12 AM, 1:36 PM–3:36 PM | 9:05 AM–10:05 AM, 7:01 PM–8:01 PM |
| Tue Oct 13 | 54 · Fair | 3:00 PM–4:00 PM, 6:00 PM–8:00 PM | 2:00 AM–4:00 AM, 2:24 PM–4:24 PM | 10:07 AM–11:07 AM, 7:37 PM–8:37 PM |
| Wed Oct 14 | 45 · Fair | 4:00 PM–5:00 PM, 6:00 PM–7:00 PM | 2:49 AM–4:49 AM, 3:14 PM–5:14 PM | 11:07 AM–12:07 PM, 8:19 PM–9:19 PM |
| Thu Oct 15 | 41 · Fair | 5:00 PM–6:00 PM | 3:40 AM–5:40 AM, 4:05 PM–6:05 PM | 12:02 PM–1:02 PM, 9:08 PM–10:08 PM |
| Fri Oct 16 | 46 · Fair | 6:00 PM–7:00 PM | 4:31 AM–6:31 AM, 4:56 PM–6:56 PM | 12:51 PM–1:51 PM, 10:02 PM–11:02 PM |
| Sat Oct 17 | 49 · Fair | 6:00 PM–7:00 PM, 6:00 AM–7:00 AM | 5:21 AM–7:21 AM, 5:45 PM–7:45 PM | 1:34 PM–2:34 PM, 11:01 PM–12:01 AM |
A planning aid, not a guarantee. Wind, water clarity, bait and pressure changes matter too; the forecast above adds live wind and pressure when you open the page.
Best daylight low tides in the next two weeks
The lowest water that falls between sunrise and sunset, for tide pooling and beachcombing.
- 1.0 ft at 6:00 PM on Friday, October 23
- 1.6 ft at 5:23 PM on Thursday, October 22
- 1.8 ft at 7:36 AM on Sunday, October 11
- 2.2 ft at 4:46 PM on Wednesday, October 21
- 2.4 ft at 8:12 AM on Monday, October 12
- 2.8 ft at 4:04 PM on Tuesday, October 20
Tide table: October 11 to November 10, 2026
Full 2026 tide table Full 2027 tide table
| Day | High and low tides | Sunrise / sunset |
|---|---|---|
| Sun Oct 11 | H 1:43 AM 7.3 ftL 7:36 AM 1.8 ftH 1:21 PM 8.3 ftL 8:25 PM 0.0 ft | 7:14 AM / 6:38 PM |
| Mon Oct 12 | H 2:35 AM 7.1 ftL 8:12 AM 2.4 ftH 1:49 PM 8.2 ftL 9:03 PM 0.0 ft | 7:15 AM / 6:37 PM |
| Tue Oct 13 | H 3:27 AM 6.9 ftL 8:48 AM 2.8 ftH 2:17 PM 8.1 ftL 9:43 PM 0.1 ft | 7:16 AM / 6:36 PM |
| Wed Oct 14 | H 4:22 AM 6.7 ftL 9:26 AM 3.2 ftH 2:49 PM 7.9 ftL 10:27 PM 0.2 ft | 7:16 AM / 6:34 PM |
| Thu Oct 15 | H 5:24 AM 6.5 ftL 10:11 AM 3.6 ftH 3:27 PM 7.7 ftL 11:16 PM 0.4 ft | 7:17 AM / 6:33 PM |
| Fri Oct 16 | H 6:35 AM 6.4 ftL 11:10 AM 3.8 ftH 4:14 PM 7.4 ft | 7:18 AM / 6:31 PM |
| Sat Oct 17 | L 12:14 AM 0.6 ftH 7:51 AM 6.5 ftL 12:38 PM 3.8 ftH 5:13 PM 7.2 ft | 7:19 AM / 6:30 PM |
| Sun Oct 18 | L 1:20 AM 0.7 ftH 8:50 AM 6.5 ftL 2:07 PM 3.6 ftH 6:24 PM 7.0 ft | 7:20 AM / 6:29 PM |
| Mon Oct 19 | L 2:24 AM 0.8 ftH 9:30 AM 6.7 ftL 3:13 PM 3.3 ftH 7:38 PM 6.9 ft | 7:21 AM / 6:27 PM |
| Tue Oct 20 | L 3:17 AM 0.7 ftH 10:00 AM 6.9 ftL 4:04 PM 2.8 ftH 8:47 PM 6.9 ft | 7:22 AM / 6:26 PM |
| Wed Oct 21 | L 4:02 AM 0.7 ftH 10:26 AM 7.2 ftL 4:46 PM 2.2 ftH 9:49 PM 7.0 ft | 7:23 AM / 6:25 PM |
| Thu Oct 22 | L 4:40 AM 0.8 ftH 10:50 AM 7.5 ftL 5:23 PM 1.6 ftH 10:46 PM 7.0 ft | 7:24 AM / 6:23 PM |
| Fri Oct 23 | L 5:16 AM 1.1 ftH 11:15 AM 7.8 ftL 6:00 PM 1.0 ftH 11:40 PM 7.1 ft | 7:25 AM / 6:22 PM |
| Sat Oct 24 | L 5:51 AM 1.4 ftH 11:42 AM 8.1 ftL 6:37 PM 0.3 ft | 7:26 AM / 6:21 PM |
| Sun Oct 25 | H 12:34 AM 7.2 ftL 6:26 AM 1.8 ftH 12:10 PM 8.4 ftL 7:16 PM -0.2 ft | 7:27 AM / 6:20 PM |
| Mon Oct 26 | H 1:28 AM 7.2 ftL 7:03 AM 2.2 ftH 12:42 PM 8.7 ftL 7:59 PM -0.7 ft | 7:28 AM / 6:19 PM |
| Tue Oct 27 | H 2:24 AM 7.2 ftL 7:43 AM 2.6 ftH 1:18 PM 8.8 ftL 8:44 PM -0.9 ft | 7:29 AM / 6:17 PM |
| Wed Oct 28 | H 3:22 AM 7.1 ftL 8:26 AM 3.0 ftH 1:59 PM 8.9 ftL 9:34 PM -1.0 ft | 7:30 AM / 6:16 PM |
| Thu Oct 29 | H 4:24 AM 6.9 ftL 9:14 AM 3.3 ftH 2:46 PM 8.7 ftL 10:29 PM -0.9 ft | 7:31 AM / 6:15 PM |
| Fri Oct 30 | H 5:30 AM 6.8 ftL 10:14 AM 3.5 ftH 3:42 PM 8.4 ftL 11:31 PM -0.6 ft | 7:32 AM / 6:14 PM |
| Sat Oct 31 | H 6:38 AM 6.8 ftL 11:32 AM 3.5 ftH 4:47 PM 8.0 ft | 7:33 AM / 6:13 PM |
| Sun Nov 1 | L 12:38 AM -0.3 ftH 6:43 AM 7.0 ftL 12:06 PM 3.3 ftH 5:02 PM 7.6 ft | 6:34 AM / 5:12 PM |
| Mon Nov 2 | L 12:46 AM -0.1 ftH 7:38 AM 7.2 ftL 1:33 PM 2.9 ftH 6:24 PM 7.2 ft | 6:35 AM / 5:11 PM |
| Tue Nov 3 | L 1:48 AM 0.2 ftH 8:24 AM 7.5 ftL 2:43 PM 2.2 ftH 7:46 PM 7.0 ft | 6:36 AM / 5:10 PM |
| Wed Nov 4 | L 2:42 AM 0.6 ftH 9:03 AM 7.8 ftL 3:41 PM 1.4 ftH 9:00 PM 6.9 ft | 6:38 AM / 5:09 PM |
| Thu Nov 5 | L 3:29 AM 1.0 ftH 9:38 AM 8.1 ftL 4:30 PM 0.8 ftH 10:06 PM 6.9 ft | 6:39 AM / 5:08 PM |
| Fri Nov 6 | L 4:11 AM 1.4 ftH 10:11 AM 8.3 ftL 5:14 PM 0.3 ftH 11:06 PM 6.9 ft | 6:40 AM / 5:07 PM |
| Sat Nov 7 | L 4:51 AM 1.9 ftH 10:41 AM 8.4 ftL 5:53 PM -0.1 ft | 6:41 AM / 5:06 PM |
| Sun Nov 8 | H 12:01 AM 6.9 ftL 5:29 AM 2.4 ftH 11:09 AM 8.4 ftL 6:30 PM -0.3 ft | 6:42 AM / 5:05 PM |
| Mon Nov 9 | H 12:53 AM 6.9 ftL 6:07 AM 2.8 ftH 11:38 AM 8.4 ftL 7:06 PM -0.5 ft | 6:43 AM / 5:04 PM |
| Tue Nov 10 | H 1:42 AM 6.9 ftL 6:44 AM 3.1 ftH 12:07 PM 8.3 ftL 7:42 PM -0.4 ft | 6:44 AM / 5:03 PM |
Heights are in feet above mean lower low water (MLLW), the zero line on most US nautical charts. A minus height means the water drops below that line.
Around Corkscrew Slough
Boat ramps
- Boat ramp 0.5 mi
- Public Boat Launch Ramp 1.0 mi
- Boat ramp 1.0 mi
- Westpoint Harbor Drive 1.0 mi
Marinas
- Redwood City Yacht Harbor 0.4 mi
- Westpoint Harbor 1.0 mi
- Docktown Marina 1.0 mi
Distances from the tide station. Places from © OpenStreetMap contributors; links open in Google Maps.
Fish in the waters around Corkscrew Slough
34 kinds of fish, sharks and rays have been recorded within 15 km (about 9 miles) of this spot, most often Bat Ray, Striped Bass, Pacific Staghorn Sculpin. The bar shows how many records each has.
- Bat Ray Myliobatis californicaSalt water · 27 records
- Striped Bass Morone saxatilisSalt water · 24 records
- Pacific Staghorn Sculpin Leptocottus armatusSalt water · 23 records
- Common Carp Cyprinus carpioBrackish water · 23 records
- Bay Goby Lepidogobius lepidusSalt water · 22 records
- Yellowfin Goby Acanthogobius flavimanusSalt water · 20 records
- Speckled Sanddab Citharichthys stigmaeusSalt water · 18 records
- Prickly Sculpin Cottus asperSalt water · 17 records
- Shiner Perch Cymatogaster aggregataSalt water · 17 records
- Plainfin Midshipman Porichthys notatusSalt water · 16 records
- Leopard Shark Triakis semifasciataSalt water · 15 records
- English Sole Parophrys vetulusSalt water · 13 records
- King Salmon Oncorhynchus tshawytschaSalt water · 13 records
- White Croaker Genyonemus lineatusSalt water · 12 records
- Western Mosquitofish Gambusia affinisBrackish water · 11 records
- Topsmelt Atherinops affinisSalt water · 11 records
- Longjaw Mudsucker Gillichthys mirabilisSalt water · 10 records
- Three-spined Stickleback Gasterosteus aculeatusSalt water · 9 records
- Rainbow Trout Oncorhynchus mykissSalt water · 9 records
- Chameleon Goby Tridentiger trigonocephalusSalt water · 8 records
- Cheekspot Goby Ilypnus gilbertiSalt water · 8 records
- California Halibut Paralichthys californicusSalt water · 8 records
- Northern Anchovy Engraulis mordaxSalt water · 8 records
- Jacksmelt Atherinopsis californiensisSalt water · 6 records
- Brown Smoothhound Mustelus henleiSalt water · 6 records
- Rainwater Killifish Lucania parvaSalt water · 5 records
- Starry Flounder Platichthys stellatusSalt water · 5 records
- Longfin Smelt Spirinchus thaleichthysSalt water · 5 records
- Brown Rockfish Sebastes auriculatusSalt water · 4 records
- Tench Tinca tincaBrackish water · 4 records
- Arrow Goby Clevelandia iosSalt water · 4 records
- Lingcod Ophiodon elongatusSalt water · 3 records
- Walleye Surfperch Hyperprosopon argenteumSalt water · 3 records
- California Tonguefish Symphurus atricaudusSalt water · 3 records
Fresh water nearby · 6 species
Rivers, creeks and ponds within 15 km, not the tidal water itself.
- California Roach Hesperoleucus symmetricusFresh water · 10 records
- Bluegill Lepomis macrochirusFresh water · 4 records
- Sacramento Sucker Catostomus occidentalisFresh water · 4 records
- Smallmouth Bass Micropterus dolomieuFresh water · 4 records
- Brown Bullhead Ameiurus nebulosusFresh water · 3 records
- Green Sunfish Lepomis cyanellusFresh water · 3 records
Records from GBIF datasets released under CC0 or CC BY 4.0 (museum collections, surveys and community sightings). It shows what has been found here, not a complete list. Check your state rules before keeping fish.
About the tides at Corkscrew Slough
Corkscrew Slough gets two high tides and two low tides almost every day, and the two highs are close in height. Over the next month the water typically rises or falls about 6.1 ft between a high and the next low.
The biggest swings in this window come around Wednesday, October 28, when the day's range reaches 9.9 ft, and again around Monday, November 9 (8.8 ft). Those spring tides follow the new and full moon by a day or two. The calmest day is Monday, October 19, with only 6.1 ft between the day's highest and lowest water.
The lowest tide of the month is -1.0 ft at 9:34 PM on Wednesday, October 28. There are 13 minus tides (lows below the chart's zero line) in this window: the best times for tide pools, clamming and walking the flats.
The highest predicted tide is 8.9 ft at 1:59 PM on Wednesday, October 28. Onshore wind or a storm can push the real water level above that.
This is a subordinate station: NOAA calculates its times and heights by adjusting a nearby reference station, so expect them to be a few minutes or a few tenths of a foot off on any given day.
Station details
- NOAA station ID: 9414505
- Type: subordinate (adjusted from a reference station)
- Location: 37.5083, -122.2100
Reference station: San Francisco (Golden Gate).
Nearby tide stations
- Redwood City, Wharf 5 0 mi
- Smith Slough 1 mi
- Granite Rock, Redwood Creek 1 mi
- West Point Slough 1 mi
- Redwood Creek Marker 8 2 mi
- Bay Slough, east end 3 mi