Threemile Slough tide chart
California · near Rio Vista (4 mi) · NOAA station 9415236 · times in local time (PDT)
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Tides today, Sunday, October 11
- High 4:50 AM 3.3 ft
- Low 10:40 AM 0.8 ft
- High 4:30 PM 4.0 ft
- Low 11:56 PM 0.1 ft
Were today's predicted times right where you were?
Sunrise 7:12 AM · Sunset 6:36 PM · New moon (0%)
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Fishing forecast
Hour by hour at Threemile SloughBest times
1:00 AM–2:00 AM and 1:00 PM–2:00 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 Threemile Slough
Loading the National Weather Service forecast… Open it on weather.gov.
Marine forecast: San Pablo Bay, Suisun Bay, the West Delta and the San Francisco Bay north of the Bay Bridge
Loading the latest National Weather Service forecast… Open it on weather.gov.
- Water temperature —
Marine radio: weather channels and VHF
NOAA Weather Radio
- 162.425 MHz WX4 WNG655, Contra Costa County, CA (19 mi)
- 162.500 MHz WX6 KDX54, Big Rock Ridge, CA (49 mi)
To get alerts on a weather alert radio, program county code 006067 (Sacramento).
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 4:50 AM 3.3 ftL 10:40 AM 0.8 ftH 4:30 PM 4.0 ftL 11:56 PM 0.1 ft | 7:12 AM / 6:36 PM | New moon (0%) |
| Mon Oct 12 | H 5:41 AM 3.2 ftL 11:08 AM 1.1 ftH 4:49 PM 4.0 ft | 7:13 AM / 6:34 PM | New moon (2%) |
| Tue Oct 13 | L 12:41 AM 0.1 ftH 6:35 AM 3.1 ftL 11:40 AM 1.4 ftH 5:11 PM 4.1 ft | 7:14 AM / 6:33 PM | Waxing crescent (6%) |
| Wed Oct 14 | L 1:25 AM 0.1 ftH 7:32 AM 3.1 ftL 12:17 PM 1.6 ftH 5:40 PM 4.1 ft | 7:15 AM / 6:32 PM | Waxing crescent (13%) |
| Thu Oct 15 | L 2:12 AM 0.2 ftH 8:32 AM 3.0 ftL 1:02 PM 1.7 ftH 6:17 PM 4.0 ft | 7:16 AM / 6:30 PM | Waxing crescent (20%) |
| Fri Oct 16 | L 3:04 AM 0.3 ftH 9:34 AM 3.0 ftL 1:56 PM 1.8 ftH 7:02 PM 3.8 ft | 7:17 AM / 6:29 PM | Waxing crescent (30%) |
| Sat Oct 17 | L 4:01 AM 0.3 ftH 10:34 AM 3.0 ftL 3:01 PM 1.8 ftH 7:58 PM 3.5 ft | 7:18 AM / 6:27 PM | First quarter (40%) |
Tidal currents near Threemile Slough
From NOAA's current predictions for Sacramento River Light 14 at 3 ft depth, 4.0 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 NE (55°) and the ebb toward the SW (235°). The strongest current this week is 1.6 knots.
| Day | Slack water and peak currents |
|---|---|
| Sun Oct 11 | Slack 12:18 AMFlood 3:04 AM 1.2 knSlack 6:01 AMEbb 8:48 AM 1.1 knSlack 11:55 AMFlood 2:53 PM 1.2 knSlack 6:07 PMEbb 9:49 PM 1.6 kn |
| Mon Oct 12 | Slack 1:17 AMFlood 4:08 AM 1.1 knSlack 7:05 AMEbb 9:41 AM 0.9 knSlack 12:30 PMFlood 3:22 PM 1.2 knSlack 6:39 PMEbb 10:33 PM 1.6 kn |
| Tue Oct 13 | Slack 2:16 AMFlood 5:20 AM 1.1 knSlack 8:15 AMEbb 10:39 AM 0.7 knSlack 1:09 PMFlood 3:57 PM 1.2 knSlack 7:10 PMEbb 11:14 PM 1.6 kn |
| Wed Oct 14 | Slack 3:14 AMFlood 6:31 AM 1.1 knSlack 9:26 AMEbb 11:39 AM 0.6 knSlack 1:52 PMFlood 4:37 PM 1.1 knSlack 7:42 PMEbb 11:46 PM 1.5 kn |
| Thu Oct 15 | Slack 4:12 AMFlood 7:35 AM 1.2 knSlack 10:34 AMEbb 12:39 PM 0.5 knSlack 2:42 PMFlood 5:23 PM 0.9 knSlack 8:18 PM |
| Fri Oct 16 | Ebb 12:14 AM 1.4 knSlack 5:09 AMFlood 8:36 AM 1.2 knSlack 11:34 AMEbb 1:39 PM 0.5 knSlack 3:43 PMFlood 6:15 PM 0.8 knSlack 9:03 PM |
| Sat Oct 17 | Ebb 12:48 AM 1.2 knSlack 6:06 AMFlood 9:31 AM 1.1 knSlack 12:24 PMEbb 2:40 PM 0.5 knSlack 4:51 PMFlood 7:12 PM 0.7 knSlack 10:02 PM |
Current predictions can differ a lot over short distances: check the station location on NOAA before planning a passage.
Best fishing times at Threemile 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 | 96 · Excellent | 1:00 AM–2:00 AM, 1:00 PM–2:00 PM | 12:24 AM–2:24 AM, 12:47 PM–2:47 PM | 8:00 AM–9:00 AM, 6:27 PM–7:27 PM |
| Mon Oct 12 | 86 · Excellent | 2:00 AM–3:00 AM, 2:00 PM–3:00 PM | 1:10 AM–3:10 AM, 1:34 PM–3:34 PM | 9:04 AM–10:04 AM, 6:57 PM–7:57 PM |
| Tue Oct 13 | 71 · Good | 2:00 AM–4:00 AM, 3:00 PM–4:00 PM | 1:58 AM–3:58 AM, 2:22 PM–4:22 PM | 10:07 AM–11:07 AM, 7:33 PM–8:33 PM |
| Wed Oct 14 | 56 · Good | 3:00 AM–5:00 AM, 4:00 PM–5:00 PM | 2:47 AM–4:47 AM, 3:12 PM–5:12 PM | 11:07 AM–12:07 PM, 8:15 PM–9:15 PM |
| Thu Oct 15 | 46 · Fair | 4:00 AM–5:00 AM, 4:00 PM–6:00 PM | 3:38 AM–5:38 AM, 4:03 PM–6:03 PM | 12:03 PM–1:03 PM, 9:03 PM–10:03 PM |
| Fri Oct 16 | 51 · Fair | 5:00 AM–6:00 AM, 5:00 PM–7:00 PM | 4:28 AM–6:28 AM, 4:54 PM–6:54 PM | 12:52 PM–1:52 PM, 9:58 PM–10:58 PM |
| Sat Oct 17 | 59 · Good | 6:00 AM–7:00 AM, 6:00 PM–7:00 PM | 5:19 AM–7:19 AM, 5:43 PM–7:43 PM | 1:34 PM–2:34 PM, 10:57 PM–11:57 PM |
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.
- 0.2 ft at 7:51 AM on Thursday, October 22
- 0.3 ft at 8:21 AM on Friday, October 23
- 0.6 ft at 8:50 AM on Saturday, October 24
- 0.8 ft at 10:40 AM on Sunday, October 11
- 1.1 ft at 11:08 AM on Monday, October 12
- 1.4 ft at 11:40 AM on Tuesday, October 13
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 4:50 AM 3.3 ftL 10:40 AM 0.8 ftH 4:30 PM 4.0 ftL 11:56 PM 0.1 ft | 7:12 AM / 6:36 PM |
| Mon Oct 12 | H 5:41 AM 3.2 ftL 11:08 AM 1.1 ftH 4:49 PM 4.0 ft | 7:13 AM / 6:34 PM |
| Tue Oct 13 | L 12:41 AM 0.1 ftH 6:35 AM 3.1 ftL 11:40 AM 1.4 ftH 5:11 PM 4.1 ft | 7:14 AM / 6:33 PM |
| Wed Oct 14 | L 1:25 AM 0.1 ftH 7:32 AM 3.1 ftL 12:17 PM 1.6 ftH 5:40 PM 4.1 ft | 7:15 AM / 6:32 PM |
| Thu Oct 15 | L 2:12 AM 0.2 ftH 8:32 AM 3.0 ftL 1:02 PM 1.7 ftH 6:17 PM 4.0 ft | 7:16 AM / 6:30 PM |
| Fri Oct 16 | L 3:04 AM 0.3 ftH 9:34 AM 3.0 ftL 1:56 PM 1.8 ftH 7:02 PM 3.8 ft | 7:17 AM / 6:29 PM |
| Sat Oct 17 | L 4:01 AM 0.3 ftH 10:34 AM 3.0 ftL 3:01 PM 1.8 ftH 7:58 PM 3.5 ft | 7:18 AM / 6:27 PM |
| Sun Oct 18 | L 4:59 AM 0.2 ftH 11:29 AM 3.0 ftL 4:16 PM 1.7 ftH 9:08 PM 3.2 ft | 7:19 AM / 6:26 PM |
| Mon Oct 19 | L 5:52 AM 0.2 ftH 12:18 PM 3.1 ftL 5:31 PM 1.5 ftH 10:35 PM 3.1 ft | 7:20 AM / 6:25 PM |
| Tue Oct 20 | L 6:38 AM 0.1 ftH 1:00 PM 3.1 ftL 6:36 PM 1.2 ftH 11:58 PM 3.0 ft | 7:21 AM / 6:23 PM |
| Wed Oct 21 | L 7:17 AM 0.1 ftH 1:35 PM 3.3 ftL 7:32 PM 0.9 ft | 7:22 AM / 6:22 PM |
| Thu Oct 22 | H 1:04 AM 3.1 ftL 7:51 AM 0.2 ftH 2:03 PM 3.4 ftL 8:22 PM 0.6 ft | 7:23 AM / 6:21 PM |
| Fri Oct 23 | H 2:01 AM 3.1 ftL 8:21 AM 0.3 ftH 2:26 PM 3.6 ftL 9:09 PM 0.3 ft | 7:24 AM / 6:19 PM |
| Sat Oct 24 | H 2:54 AM 3.1 ftL 8:50 AM 0.6 ftH 2:46 PM 3.9 ftL 9:55 PM 0.1 ft | 7:25 AM / 6:18 PM |
| Sun Oct 25 | H 3:47 AM 3.2 ftL 9:22 AM 0.8 ftH 3:09 PM 4.2 ftL 10:41 PM 0.0 ft | 7:26 AM / 6:17 PM |
| Mon Oct 26 | H 4:41 AM 3.2 ftL 9:58 AM 1.1 ftH 3:39 PM 4.5 ftL 11:29 PM -0.1 ft | 7:27 AM / 6:16 PM |
| Tue Oct 27 | H 5:37 AM 3.1 ftL 10:39 AM 1.3 ftH 4:15 PM 4.7 ft | 7:28 AM / 6:14 PM |
| Wed Oct 28 | L 12:19 AM -0.1 ftH 6:37 AM 3.1 ftL 11:26 AM 1.5 ftH 4:57 PM 4.7 ft | 7:29 AM / 6:13 PM |
| Thu Oct 29 | L 1:13 AM -0.1 ftH 7:40 AM 3.1 ftL 12:19 PM 1.6 ftH 5:45 PM 4.6 ft | 7:30 AM / 6:12 PM |
| Fri Oct 30 | L 2:13 AM -0.1 ftH 8:45 AM 3.0 ftL 1:21 PM 1.7 ftH 6:39 PM 4.3 ft | 7:31 AM / 6:11 PM |
| Sat Oct 31 | L 3:16 AM -0.1 ftH 9:49 AM 3.0 ftL 2:33 PM 1.7 ftH 7:44 PM 4.0 ft | 7:32 AM / 6:10 PM |
| Sun Nov 1 | L 3:21 AM 0.0 ftH 9:49 AM 3.1 ftL 2:56 PM 1.5 ftH 8:05 PM 3.6 ft | 6:33 AM / 5:09 PM |
| Mon Nov 2 | L 4:21 AM -0.1 ftH 10:44 AM 3.3 ftL 4:18 PM 1.2 ftH 9:39 PM 3.3 ft | 6:34 AM / 5:08 PM |
| Tue Nov 3 | L 5:15 AM 0.0 ftH 11:33 AM 3.4 ftL 5:31 PM 0.8 ftH 11:02 PM 3.1 ft | 6:35 AM / 5:07 PM |
| Wed Nov 4 | L 6:02 AM 0.0 ftH 12:16 PM 3.6 ftL 6:35 PM 0.5 ft | 6:37 AM / 5:06 PM |
| Thu Nov 5 | H 12:11 AM 3.1 ftL 6:44 AM 0.2 ftH 12:55 PM 3.8 ftL 7:33 PM 0.1 ft | 6:38 AM / 5:05 PM |
| Fri Nov 6 | H 1:11 AM 3.1 ftL 7:21 AM 0.4 ftH 1:28 PM 3.9 ftL 8:25 PM -0.1 ft | 6:39 AM / 5:04 PM |
| Sat Nov 7 | H 2:06 AM 3.1 ftL 7:54 AM 0.7 ftH 1:57 PM 4.0 ftL 9:14 PM -0.2 ft | 6:40 AM / 5:03 PM |
| Sun Nov 8 | H 2:58 AM 3.1 ftL 8:26 AM 1.1 ftH 2:20 PM 4.1 ftL 10:01 PM -0.2 ft | 6:41 AM / 5:02 PM |
| Mon Nov 9 | H 3:50 AM 3.1 ftL 8:57 AM 1.4 ftH 2:40 PM 4.1 ftL 10:45 PM -0.2 ft | 6:42 AM / 5:01 PM |
| Tue Nov 10 | H 4:42 AM 3.1 ftL 9:32 AM 1.6 ftH 3:01 PM 4.2 ftL 11:26 PM -0.1 ft | 6:43 AM / 5:00 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 Threemile Slough
Beaches
- Playpen 5.7 mi
- Kite beach 5.8 mi
Marinas
- Delta Marina Yacht-Harbor 3.0 mi
- Owl Harbor Marina 4.4 mi
Fishing piers and docks
Distances from the tide station. Places from © OpenStreetMap contributors; links open in Google Maps.
About the tides at Threemile Slough
Threemile Slough gets two high tides and two low tides most days, but one high is clearly higher than the other (and one low clearly lower), which is called a mixed tide. Over the next month the water typically rises or falls about 2.9 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 4.9 ft, and again around Monday, November 9 (4.3 ft). Here the biggest ranges depend on the moon's phase and on how far north or south of the equator it is, so they don't always line up with the new and full moon. The calmest day is Monday, October 19, with only 2.9 ft between the day's highest and lowest water.
The lowest tide of the month is -0.2 ft at 10:01 PM on Sunday, November 8. There are 14 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 4.7 ft at 4:57 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: 9415236
- Type: subordinate (adjusted from a reference station)
- Location: 38.1067, -121.7000
Reference station: Port Chicago, Suisun Bay.