Hercules, Refugio Landing Tides Today
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Hercules, Refugio Landing runs a mean tidal range of about 4.5 ft. This month the highest water, 7.4 ft, comes on the afternoon of Nov 25, and the lowest, a -1.4 ft minus tide, on the evening of Nov 25.
| Low tide | 2:39 AM | 0.4 ft |
| High tide | 9:15 AM | 5.9 ft |
| Low tide | 3:38 PM | 1.1 ft |
| High tide | 9:12 PM | 5.0 ft |
Today on the water at Hercules, Refugio Landing
Today at Hercules, Refugio Landing: high tide at 9:15 AM (5.9 ft) and 9:12 PM (5.0 ft), low tide at 2:39 AM (0.4 ft) and 3:38 PM (1.1 ft). The National Weather Service forecast for today is sunny with W winds 5 to 9 mph, 63°F. Sunrise is at 6:37 AM and sunset at 5:08 PM.
| Period | Forecast | Wind | Temp |
|---|---|---|---|
| Today | Sunny | W 5 to 9 mph | 63°F |
| Tonight | Mostly Cloudy | W 3 to 8 mph | 53°F |
Forecast: National Weather Service point forecast for this location.
Where Hercules, Refugio Landing is
Hercules, Refugio Landing sits at 38.0233° N, 122.2920° W on San Francisco Bay, at Hercules, CA. The station here is a subordinate tide prediction point. NOAA has no gauge in the water at this spot; its times and heights are published as offsets from a reference gauge, named below. The closest gauge measuring live water level is Chevron Oil Company Pier, Richmond (NOAA 9414863), 8.8 mi away, and high and low water here run on average about 57 min later than there. The nearest weather station is Davis Point, San Pablo Bay, CA, a shore station reporting wind and, at most sites, water temperature, 2.7 mi away.
The tide at Hercules, Refugio Landing
Hercules, Refugio Landing has a mixed tide: two highs and two lows a day, but of unequal size, so one low each day drains noticeably lower than the other. This month's predictions average 1.9 high tides a day here. The mean range from lower low to higher high is 6.1 ft, and 4.5 ft between the average high and the average low, a large tide. On an average day the higher high tops the lower high by 0.6 ft and the lower low sits 1.0 ft below the other low. For the water around it: Bay tides are mixed semidiurnal, two unequal highs a day with a range near 6 ft at the Golden Gate that shifts in time as it moves into the bay and up the rivers.
About this station
- High tide reaches Hercules, Refugio Landing about 8.8 hours after the moon passes overhead. That lag is local, which is why high water does not line up with the moon.
- NOAA predicts tides here from San Francisco (Golden Gate), station 9414290. High tide comes about 75 min later and low tide about 99 min later than there.
- High tide heights run about 1.05 times the reference.
Datum and source
Heights on this page are feet above mean lower low water (MLLW), the zero NOAA's nautical charts use for soundings. A predicted 0.0 ft low is the average of the lower low each day; a minus tide is water below chart datum, and a 2 ft high means 2 ft more water than the chart shows. NOAA fixes MLLW at Hercules, Refugio Landing from the 1983-2001 National Tidal Datum Epoch; mean higher high water is 6.1 ft above it and mean sea level 3.2 ft. These datums are controlled from NOAA's San Francisco, CA gauge. Source: NOAA CO-OPS station 9415074, established 1976, gauge removed 1987. The tide times and heights are published as time and height offsets from its reference gauge; TidalMap republishes them daily and does not alter them.
Tide stations near Hercules, Refugio Landing
- Selby: 3.6 mi, tides about 20 min later
- Pinole Point: 3.9 mi, tides about 22 min earlier
- Crockett: 4.5 mi, tides about 17 min later
- Vallejo, Mare Island Strait: 6.2 mi, tides about 32 min later
- Point San Pedro: 8.7 mi, tides about 22 min earlier
TidalMapMonthly tide calendar
🌊 Biggest flood tides of the month at Hercules, Refugio Landing this month: Nov 22, Nov 23, Nov 24, Nov 25, Nov 26, Nov 27. These spring highs run the highest water of the month.
🔻 Lowest tides of the month at Hercules, Refugio Landing this month: Nov 1, Nov 2, Nov 7, Nov 8, Nov 9, Nov 10, Nov 11, Nov 12, Nov 13, Nov 22, Nov 23, Nov 24 …. These minus lows are when flats and bars dry out.
Best fishing times (solunar)
Major and minor solunar windows for Hercules, Refugio Landing, peak feeding activity is around the moon overhead/underfoot (majors) and moonrise/moonset (minors). Score is the day's activity coefficient (0–100).
| Day | Major windows | Minor windows | Score |
|---|---|---|---|
| Today 🌗 | 7:29–9:29 AM 7:54–9:54 PM | 1:01–3:01 AM 1:46–3:46 PM | 62 |
| Thu Nov 5 🌘 | 8:15–10:15 AM 8:40–10:40 PM | 2:08–4:08 AM 2:11–4:11 PM | 74 |
| Fri Nov 6 🌘 | 8:59–10:59 AM 9:24–11:24 PM | 3:14–5:14 AM 2:35–4:35 PM | 84 |
| Sat Nov 7 🌘 | 9:45–11:45 AM 10:10–12:10 AM | 4:19–6:19 AM 3:02–5:02 PM | 92 |
| Sun Nov 8 🌘 | 10:31–12:31 PM 10:56–12:56 AM | 5:24–7:24 AM 3:31–5:31 PM | 97 |
| Mon Nov 9 🌑 | 11:19–1:19 PM 11:44–1:44 AM | 6:28–8:28 AM 4:05–6:05 PM | 99 |
| Tue Nov 10 🌑 | 12:09–2:09 PM 12:34–2:34 AM | 7:30–9:30 AM 4:45–6:45 PM | 98 |
Predictions & observations: NOAA CO-OPS station 9415074. Solunar windows computed from the moon's position for this location. Times shown in the station's local time. Not for navigation.
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