The Florida Keys
Marathon Tide Chart
High and low tide times for Vaca Key & the reef, predicted by NOAA at Vaca Key, Marathon.
Today’s tides
Wednesday, July 29- High tide1:20 PM 1.1 ft
- Low tide7:35 PM 0.1 ft
Today’s range is 1.0 ft.
See the live tide curve →Marathon tide times this week
| Day | High and low tides |
|---|---|
| Today |
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| Thursday, Jul 30 |
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| Friday, Jul 31 |
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| Saturday, Aug 1 |
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| Sunday, Aug 2 |
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| Monday, Aug 3 |
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| Tuesday, Aug 4 |
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Reading the tide at Marathon
These times come from the NOAA CO-OPS station at Vaca Key, Marathon, measured against mean lower low water (MLLW) — the datum every US chart uses, so a 1.5 ft prediction means a foot and a half above the average lowest tide, not above the bottom. Wind and pressure shift the real water level either side of the prediction: a hard onshore blow stacks water up and a strong offshore wind can pull a low tide well below what the table says.
Local tip: Tarpon feed hard in the bridge channels on a strong tide, especially at night.
For fishing, the times in the table matter less than what happens between them. Water moving is what turns the bite on, and the strongest flow is roughly midway between a high and a low — so the two hours either side of that midpoint usually beat slack water at either end, particularly around tarpon and permit.
Marathon tide questions
- What time is high tide at Marathon today?
- High tide at Marathon is at 1:20 PM (1.1 ft), predicted by NOAA at Vaca Key, Marathon. Wind can shift the actual water level either side of the prediction.
- What time is low tide at Marathon today?
- Low tide at Marathon is at 7:35 PM (0.1 ft). A strong offshore wind can pull the water lower than predicted, which matters on shallow flats and at boat ramps.
- How big is the tide at Marathon?
- Today's range at Marathon is about 1.0 ft. Florida's Gulf coast has a modest tide compared with the Atlantic, and the range grows around the new and full moon — those spring tides move noticeably more water.
- Which tide is best for fishing Marathon?
- Moving water beats slack water almost everywhere. The strongest current runs roughly midway between a high and a low, so plan the two hours either side of that rather than the exact turn. First and last light overlapping a moving tide is the classic window.
Tide charts nearby
Predictions from NOAA CO-OPS station 8723970 (Vaca Key, Marathon), datum MLLW, times in Eastern. Salty Forecast is a free hyperlocal weather app for anglers. Predictions are not observations — never use them for navigation or safety-of-life decisions.