Rock Harbor, Key Largo Tides Today
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Rock Harbor, Key Largo runs a mean tidal range of about 2.0 ft. This month the highest water, 3.1 ft, comes on the morning of Oct 27, and the lowest, a -0.0 ft minus tide, on the morning of Oct 28.
| High tide | 1:15 AM | 2.7 ft |
| Low tide | 7:26 AM | 0.4 ft |
| High tide | 2:05 PM | 2.8 ft |
| Low tide | 8:07 PM | 0.9 ft |
Today on the water at Rock Harbor, Key Largo
Today at Rock Harbor, Key Largo: high tide at 1:15 AM (2.7 ft) and 2:05 PM (2.8 ft), low tide at 7:26 AM (0.4 ft) and 8:07 PM (0.9 ft). The National Weather Service forecast for today is slight chance showers and thunderstorms then chance showers and thunderstorms with E winds 10 mph, 83°F. In effect now: Coastal Flood Warning. Sunrise is at 7:28 AM and sunset at 6:42 PM.
| Period | Forecast | Wind | Temp |
|---|---|---|---|
| Today | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | E 10 mph | 83°F |
| Tonight | Showers And Thunderstorms Likely | E 10 to 15 mph | 77°F |
Forecast: National Weather Service point forecast for this location.
Where Rock Harbor, Key Largo is
Rock Harbor, Key Largo sits at 25.0817° N, 80.4467° W on the Florida Keys, where the Atlantic meets Florida Bay and the Gulf of Mexico, at Key Largo, FL, in Mainland Monroe County. 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 Virginia Key, Biscayne Bay (NOAA 8723214), 48.3 mi away, and high and low water here run on average about 4 min earlier than there. The nearest weather station is Butternut Key, FL, a shore station reporting wind and, at most sites, water temperature, 4.5 mi away.
The tide at Rock Harbor, Key Largo
Rock Harbor, Key Largo has a semidiurnal tide: two highs and two lows a day of about the same size, roughly 12 hours 25 minutes apart. This month's predictions average 1.9 high tides a day here. The mean range from lower low to higher high is 2.4 ft, and 2.1 ft between the average high and the average low, a moderate tide. On an average day the higher high tops the lower high by 0.1 ft and the lower low sits 0.2 ft below the other low. For the water around it: The Keys sit on a tidal seam: the ocean side has two semidiurnal highs a day near 2 ft, while the bay side is smaller and more diurnal, so tides on opposite sides of one key can differ by hours.
About this station
- High tide reaches Rock Harbor, Key Largo about 1.5 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 Government Cut, Miami Harbor Entrance, station 8723178. High tide comes about 22 min later and low tide about 36 min later than there.
- High tide heights run about 0.94 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 Rock Harbor, Key Largo from the 1983-2001 National Tidal Datum Epoch; mean higher high water is 2.4 ft above it and mean sea level 1.2 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 Tavernier Hawk Channel, Fl gauge. Source: NOAA CO-OPS station 8723689, established 1975, gauge removed 1975. 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 Rock Harbor, Key Largo
- Point Charles, Key Largo: 0.2 mi, tides about 40 min later
- East Key, southern end, Florida Bay: 11.8 mi, tides about 176 min later
- Snake Creek, USCG Station, Plantation Key: 12.5 mi, tides about 63 min later
- Wednesday Point, Key Largo, Card Sound: 18.3 mi, tides about 155 min later
- Ocean Reef Harbor, Key Largo: 18.9 mi, tides about 24 min earlier
TidalMapMonthly tide calendar
🌊 Biggest flood tides at Rock Harbor, Key Largo this month: Oct 8, Oct 9, Oct 10, Oct 11, Oct 12, Oct 25, Oct 26, Oct 27, Oct 28, Oct 29. 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 Rock Harbor, Key Largo this month: Oct 27, Oct 28. 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 Rock Harbor, Key Largo, 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 🌖 | 5:01–7:01 AM 5:26–7:26 PM | 10:59–12:59 AM 12:08–2:08 PM | 55 |
| Sun Nov 1 🌗 | 6:01–8:01 AM 6:26–8:26 PM | — 12:58–2:58 PM | 42 |
| Mon Nov 2 🌗 | 6:57–8:57 AM 7:22–9:22 PM | 12:06–2:06 AM 1:40–3:40 PM | 33 |
| Tue Nov 3 🌗 | 7:48–9:48 AM 8:13–10:13 PM | 1:11–3:11 AM 2:18–4:18 PM | 47 |
| Wed Nov 4 🌗 | 8:36–10:36 AM 9:01–11:01 PM | 2:13–4:13 AM 2:53–4:53 PM | 60 |
| Thu Nov 5 🌘 | 9:22–11:22 AM 9:47–11:47 PM | 3:12–5:12 AM 3:26–5:26 PM | 73 |
| Fri Nov 6 🌘 | 10:07–12:07 PM 10:32–12:32 AM | 4:10–6:10 AM 3:58–5:58 PM | 83 |
Predictions & observations: NOAA CO-OPS station 8723689. 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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