Mare Island Tides Today
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Mare Island runs a mean tidal range of about 4.1 ft. This month the highest water, 6.7 ft, comes on the afternoon of Nov 25, and the lowest, a -1.0 ft minus tide, on the evening of Nov 25.
| Low tide | 2:08 AM | 0.1 ft |
| High tide | 8:48 AM | 5.3 ft |
| Low tide | 2:37 PM | 1.7 ft |
| High tide | 8:14 PM | 5.0 ft |
Today on the water at Mare Island
Today at Mare Island: high tide at 8:48 AM (5.3 ft) and 8:14 PM (5.0 ft), low tide at 2:08 AM (0.1 ft) and 2:37 PM (1.7 ft). The National Weather Service forecast for Tuesday is light rain with SSE winds 5 to 8 mph, 59°F. Sunrise is at 6:36 AM and sunset at 5:09 PM.
| Period | Forecast | Wind | Temp |
|---|---|---|---|
| Overnight | Partly Cloudy | S 5 mph | 53°F |
| Tuesday | Light Rain | SSE 5 to 8 mph | 59°F |
Forecast: National Weather Service point forecast for this location.
Where Mare Island is
Mare Island sits at 38.0700° N, 122.2500° W on San Francisco Bay, at Vallejo, CA. The station here is a historical NOAA reference station: a gauge measured the tide at this spot from 1976 until 2012, and NOAA still publishes harmonic predictions from that record. There is no live reading here today. The closest gauge measuring live water level is Martinez-Amorco Pier (NOAA 9415102), 7.2 mi away, and high and low water here run on average about 35 min earlier than there. The nearest weather station is Davis Point, San Pablo Bay, CA, a shore station reporting wind and, at most sites, water temperature, 1.2 mi away.
The tide at Mare Island
Mare Island 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 5.8 ft, and 4.2 ft between the average high and the average low, a moderate 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 Mare Island about 9.1 hours after the moon passes overhead. That lag is local, which is why high water does not line up with the moon.
- Highest water on record: 7.7 ft on Dec 22, 1996.
- Lowest on record: -2.0 ft on Jun 6, 2012.
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 Mare Island from the 1983-2001 National Tidal Datum Epoch; mean higher high water is 5.8 ft above it and mean sea level 3.1 ft. The land survey datum NAVD88, the zero on topographic maps and flood maps, is 0.4 ft below MLLW here, so a water level on this page converts to NAVD88 by adding that amount. These datums are controlled from NOAA's Port Chicago, CA gauge. Source: NOAA CO-OPS station 9415218, established 1976, gauge removed 2012. The tide times and heights are NOAA's official harmonic predictions for this station; TidalMap republishes them daily and does not alter them.
Tide stations near Mare Island
- Selby: 0.9 mi, tides about 11 min later
- Crockett: 1.7 mi, tides about 8 min later
- Vallejo, Mare Island Strait: 3.1 mi, tides about 24 min later
- Martinez-Amorco Pier: 7.2 mi, tides about 35 min later
- Pinole Point: 7.2 mi, tides about 31 min earlier
TidalMapMonthly tide calendar
🌊 Biggest flood tides at Mare Island this month: Nov 22, Nov 23, Nov 24, Nov 25, Nov 26, Nov 27. These spring highs push water up into the grass and over the oyster rock; prime for poling into flooded marsh for tailing reds.
🔻 Negative (minus) low tides at Mare Island this month: Nov 1, Nov 2, Nov 7, Nov 8, Nov 9, Nov 10, Nov 11, Nov 12, Nov 22, Nov 23, Nov 24, Nov 25 …. These drain the flats and expose the oyster rock, prime for sight-fishing and clamming.
Best fishing times (solunar)
Major and minor solunar windows for Mare Island, 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 🌗 | 6:41–8:41 AM 7:06–9:06 PM | 11:50–1:50 AM 1:20–3:20 PM | 49 |
| Wed Nov 4 🌗 | 7:29–9:29 AM 7:54–9:54 PM | 1:00–3:00 AM 1:46–3:46 PM | 62 |
| Thu Nov 5 🌘 | 8:14–10:14 AM 8:39–10:39 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 3:01–5:01 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 |
Predictions & observations: NOAA CO-OPS station 9415218. 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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