Marathon tides
Today, Wednesday, October 28, 2026 · local time (EDT) · Florida, United States- 12:41 pm0.8 ft
- 11:51 pm1.4 ft
- 5:30 am0.0 ft
- 4:46 pm0.4 ft
- Tide now
- 0.6 ft ↑ rising · high 11:51 pm (1.4 ft)
- Coefficient
- 90 · spring tides
- Range today
- 1.4 ft
Today there are high tides at 12:41 pm (0.8 ft) and 11:51 pm (1.4 ft) and low tides at 5:30 am and 4:46 pm. Tide coefficient 90. Right now the tide is rising toward the high tide at 11:51 pm. In Marathon the tide is mixed: two high and two low tides a day, but of quite different heights. The next spring tides: from October 26 to 28.
Today's high and low tides
- ▼ Low tide 5:30 am 0.0 ft
- ▲ High tide 12:41 pm 0.8 ft · coef. 90
- ▼ Low tide 4:46 pm 0.4 ft
- ▲ Next high tide 11:51 pm 1.4 ft · coef. 87
↑ Rising The tide is rising. 4 h 58 min to high tide at 11:51 pm.
Tide coefficient 90 for the 12:41 pm high tide and 87 for the 11:51 pm high tide. Spring tides. The water rises and falls 1.4 ft between the highest high and the lowest low: an average range for this place. 70 is an average tide here; 90 and above means spring tides; below 45, neap tides. What is the tide coefficient?
Heights above mean lower low water (MLLW), the zero of US nautical charts. Astronomical prediction: wind and air pressure can raise or lower the water by a few inches, and more in a storm. Not for navigation.
Tides for the next 7 days
| Day | Sun | Tide 1 | Tide 2 | Tide 3 | Tide 4 | Coef. | Moon | Major periods | Activity |
|---|---|---|---|---|---|---|---|---|---|
| Today, Wed 28 | 7:29 am · 6:47 pm | Low tide 5:30 am · 0.0 ft | High tide 12:41 pm · 0.8 ft | Low tide 4:46 pm · 0.4 ft | High tide 11:51 pm · 1.4 ft | Coef. 90 | 91% | Major periods 2:00 am · 2:32 pm | Medium |
| Thu 29 | 7:30 am · 6:46 pm | Low tide 6:24 am · 0.0 ft | High tide 1:35 pm · 0.8 ft | Low tide 5:27 pm · 0.4 ft | — | Coef. 82 | 84% | Major periods 3:04 am · 3:37 pm | Medium |
| Fri 30 | 7:30 am · 6:45 pm | High tide 12:43 am · 1.3 ft | Low tide 7:24 am · 0.1 ft | High tide 2:34 pm · 0.7 ft | Low tide 6:16 pm · 0.5 ft | Coef. 77 | 74% | Major periods 4:09 am · 4:40 pm | Medium |
| Sat 31 | 7:31 am · 6:45 pm | High tide 1:42 am · 1.3 ft | Low tide 8:31 am · 0.2 ft | High tide 3:41 pm · 0.7 ft | Low tide 7:23 pm · 0.5 ft | Coef. 66 | 63% | Major periods 5:11 am · 5:40 pm | Medium |
| Sun 1 | 6:31 am · 5:44 pm | High tide 1:52 am · 1.2 ft | Low tide 8:42 am · 0.2 ft | High tide 3:54 pm · 0.7 ft | Low tide 7:56 pm · 0.5 ft | Coef. 57 | Last quarter | Major periods 5:09 am · 5:36 pm | Medium |
| Mon 2 | 6:32 am · 5:43 pm | High tide 3:15 am · 1.1 ft | Low tide 9:48 am · 0.3 ft | High tide 4:58 pm · 0.8 ft | Low tide 9:32 pm · 0.5 ft | Coef. 55 | 41% | Major periods 6:02 am · 6:26 pm | Medium |
| Tue 3 | 6:33 am · 5:43 pm | High tide 4:43 am · 1.1 ft | Low tide 10:44 am · 0.4 ft | High tide 5:48 pm · 0.9 ft | Low tide 10:54 pm · 0.4 ft | Coef. 61 | 30% | Major periods 6:50 am · 7:13 pm | Medium |
▲ high tide · ▼ low tide · heights above MLLW. Major periods: start time; they last 2 hours. Activity: based on the moon phase and the solunar periods.
Tide coefficient and range in October
The biggest tides of the month came from October 25 to 27 (coefficient 95, 1.4 ft range). The smallest, from October 18 to 19 (coefficient 35, 0.7 ft).
Type of tide
In Marathon the tide is mixed: two high and two low tides a day, but of quite different heights. Types of tides
2026 extremes: the highest tide of the year is on October 28 (1.4 ft) and the lowest, on May 17 (-0.4 ft).
Questions about the tides in Marathon
What time is high tide today in Marathon?
High tide today is at 12:41 pm (0.8 ft) and 11:51 pm (1.4 ft). Low tide is at 5:30 am and 4:46 pm.
What time is high tide tomorrow in Marathon?
On Thursday, October 29, high tide at 1:35 pm and low tide at 6:24 am and 5:27 pm.
What is today's tide coefficient?
90: spring tides. 70 is an average tide here; 90 and above means spring tides; below 45, neap tides.
When are the next spring tides?
From October 26 to 28, after the new or full moon, with the moon near perigee, so they will be bigger than usual.
How many tides a day are there in Marathon?
The tide is mixed: two high and two low tides a day, but of quite different heights. Each high tide comes about 50 minutes later than the day before.
What are the heights measured from?
From mean lower low water (MLLW), the zero of US nautical charts. That is why a low tide can be negative: that day the water drops below that zero.
Can I use these tides for navigation?
No. They are astronomical predictions for planning fishing and outings; for navigation use official publications and nautical charts.
More about Marathon today
Tides near Marathon
- Key Colony Beach ▲ 11:28 am
- Duck Key ▲ 11:32 am
- Big Pine Key ▲ 11:59 am
- Layton ▲ 1:16 pm
- Lower Matecumbe Beach ▲ 12:18 pm
- Cudjoe Key ▲ 12:58 am
Each place with its own tide station; next to it, the time of its first high tide today.
Learn more
Tides from the Knight Key Channel station (NOAA), 2.2 mi from Marathon. Times and heights are its predictions. It is a NOAA subordinate station: its times and heights come from the Key West reference station with the official corrections. Station data attribution: Slackwater database (https://github.com/openwatersio/slackwater-database)