Marco, Big Marco River Tides Today
Open this station in TidalMapLive water level, free for 7 days
Marco, Big Marco River runs a mean tidal range of about 1.9 ft. This month the highest water, 3.4 ft, comes on the morning of Oct 29, and the lowest, a -0.4 ft minus tide, on the morning of Oct 28.
| High tide | 4:28 AM | 3.1 ft |
| Low tide | 12:21 PM | 0.0 ft |
| High tide | 7:35 PM | 2.2 ft |
| Low tide | 11:56 PM | 1.9 ft |
Today on the water at Marco, Big Marco River
Today at Marco, Big Marco River: high tide at 4:28 AM (3.1 ft) and 7:35 PM (2.2 ft), low tide at 12:21 PM (0.0 ft) and 11:56 PM (1.9 ft). The National Weather Service forecast for today is partly sunny then chance showers and thunderstorms with E winds 14 mph, 84°F. Sunrise is at 7:34 AM and sunset at 6:46 PM.
| Period | Forecast | Wind | Temp |
|---|---|---|---|
| Today | Partly Sunny then Chance Showers And Thunderstorms | E 14 mph | 84°F |
| Tonight | Chance Showers And Thunderstorms | E 14 mph | 75°F |
Forecast: National Weather Service point forecast for this location.
Where Marco, Big Marco River is
Marco, Big Marco River sits at 25.9717° N, 81.7283° W on Florida's Gulf coast, at Marco Island, FL, in Collier County. The station here is a historical NOAA reference station: a gauge measured the tide at this spot from 1930 until 1989, and NOAA still publishes harmonic predictions from that record. There is no live reading here today. The closest gauge measuring live water level is Naples, Naples Bay, north end (NOAA 8725114), 12.0 mi away, and high and low water here run on average about 16 min later than there.
The tide at Marco, Big Marco River
Marco, Big Marco River 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 2.8 ft, and 2.0 ft between the average high and the average low, a moderate tide. On an average day the higher high tops the lower high by 0.2 ft and the lower low sits 0.5 ft below the other low. For the water around it: Florida's Gulf coast runs mixed tides: two unequal highs a day near Tampa Bay, trending toward one high a day along the Big Bend and the Panhandle.
About this station
- High tide reaches Marco, Big Marco River about 6.1 hours after the moon passes overhead. That lag is local, which is why high water does not line up with the moon.
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 Marco, Big Marco River from the 1983-2001 National Tidal Datum Epoch; mean higher high water is 2.8 ft above it and mean sea level 1.5 ft. The land survey datum NAVD88, the zero on topographic maps and flood maps, is 2.1 ft above MLLW here, so a water level on this page converts to NAVD88 by subtracting that amount. These datums are controlled from NOAA's Naples, FL gauge. Source: NOAA CO-OPS station 8724991, established 1930, gauge removed 1989. 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 Marco, Big Marco River
- McIlvaine Bay: 1.9 mi, tides about 66 min later
- Marco Island, Caxambas Pass: 4.4 mi, tides about 31 min earlier
- Keewaydin island (inside): 4.4 mi, tides about 4 min later
- Coon Key: 7.7 mi, tides about 38 min later
- Naples (outer coast): 12.1 mi, tides about 51 min earlier
TidalMapMonthly tide calendar
🌊 Biggest flood tides at Marco, Big Marco River this month: Oct 1, Oct 26, Oct 27, Oct 28, Oct 29, Oct 30. 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 Marco, Big Marco River this month: Oct 26, Oct 27, Oct 28, Oct 29, Oct 30. 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 Marco, Big Marco River, 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 🌖 | 5:06–7:06 AM 5:31–7:31 PM | — 12:16–2:16 PM | 55 |
| Sun Nov 1 🌗 | 6:06–8:06 AM 6:31–8:31 PM | 11:02–1:02 AM 1:05–3:05 PM | 42 |
| Mon Nov 2 🌗 | 7:02–9:02 AM 7:27–9:27 PM | 12:10–2:10 AM 1:47–3:47 PM | 33 |
| Tue Nov 3 🌗 | 7:53–9:53 AM 8:18–10:18 PM | 1:16–3:16 AM 2:24–4:24 PM | 47 |
| Wed Nov 4 🌗 | 8:41–10:41 AM 9:06–11:06 PM | 2:18–4:18 AM 2:58–4:58 PM | 60 |
| Thu Nov 5 🌘 | 9:27–11:27 AM 9:52–11:52 PM | 3:17–5:17 AM 3:31–5:31 PM | 73 |
| Fri Nov 6 🌘 | 10:12–12:12 PM 10:37–12:37 AM | 4:16–6:16 AM 4:03–6:03 PM | 83 |
Predictions & observations: NOAA CO-OPS station 8724991. Solunar windows computed from the moon's position for this location. Times shown in the station's local time. Not for navigation.
Open this station in TidalMapLive water level, free for 7 days
Set your own flood/low lines, moon & solunar, weather and live tides in the app, start a free TidalMap trial.