Saint Augustine Beach tides
Today, Wednesday, October 28, 2026 · local time (EDT) · Florida, United States- 10:12 am6.5 ft
- 10:34 pm5.1 ft
- 3:34 am0.0 ft
- 4:27 pm0.3 ft
- Tide now
- 2.0 ft ↑ rising · high 10:34 pm (5.1 ft)
- Coefficient
- 87 · average coefficient
- Range today
- 6.5 ft
Today there are high tides at 10:12 am (6.5 ft) and 10:34 pm (5.1 ft) and low tides at 3:34 am and 4:27 pm. Tide coefficient 87. Right now the tide is rising toward the high tide at 10:34 pm. In Saint Augustine Beach the tide is semidiurnal: two high and two low tides a day, of similar height. The next spring tides: from October 26 to 28.
Today's high and low tides
- ▼ Low tide 3:34 am 0.0 ft
- ▲ High tide 10:12 am 6.5 ft · coef. 87
- ▼ Low tide 4:27 pm 0.3 ft
- ▲ Next high tide 10:34 pm 5.1 ft · coef. 85
↑ Rising The tide is rising. 3 h 39 min to high tide at 10:34 pm.
Tide coefficient 87 for the 10:12 am high tide and 85 for the 10:34 pm high tide. Average coefficient. The water rises and falls 6.5 ft between the highest high and the lowest low: a large 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 | 7:36 am · 6:41 pm | Low tide 3:34 am · 0.0 ft | High tide 10:12 am · 6.5 ft | Low tide 4:27 pm · 0.3 ft | High tide 10:34 pm · 5.1 ft | Coef. 87 | 91% | Major periods 2:01 am · 2:33 pm | Medium |
| Thu 29 | 7:37 am · 6:41 pm | Low tide 4:24 am · 0.1 ft | High tide 11:04 am · 6.3 ft | Low tide 5:23 pm · 0.5 ft | High tide 11:28 pm · 4.9 ft | Coef. 82 | 84% | Major periods 3:05 am · 3:37 pm | Medium |
| Fri 30 | 7:37 am · 6:40 pm | Low tide 5:21 am · 0.3 ft | High tide 11:59 am · 6.1 ft | Low tide 6:26 pm · 0.7 ft | — | Coef. 76 | 74% | Major periods 4:09 am · 4:41 pm | Medium |
| Sat 31 | 7:38 am · 6:39 pm | High tide 12:25 am · 4.8 ft | Low tide 6:27 am · 0.5 ft | High tide 12:58 pm · 5.8 ft | Low tide 7:31 pm · 0.8 ft | Coef. 74 | 63% | Major periods 5:12 am · 5:41 pm | Medium |
| Sun 1 | 6:39 am · 5:38 pm | High tide 1:28 am · 4.7 ft | Low tide 6:38 am · 0.7 ft | High tide 1:01 pm · 5.6 ft | Low tide 7:35 pm · 0.8 ft | Coef. 69 | Last quarter | Major periods 5:09 am · 5:36 pm | Medium |
| Mon 2 | 6:40 am · 5:37 pm | High tide 1:36 am · 4.7 ft | Low tide 7:48 am · 0.7 ft | High tide 2:08 pm · 5.4 ft | Low tide 8:34 pm · 0.7 ft | Coef. 67 | 41% | Major periods 6:02 am · 6:27 pm | Medium |
| Tue 3 | 6:40 am · 5:37 pm | High tide 2:45 am · 4.9 ft | Low tide 8:54 am · 0.8 ft | High tide 3:13 pm · 5.2 ft | Low tide 9:28 pm · 0.6 ft | Coef. 68 | 30% | Major periods 6:51 am · 7:14 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 26 to 28 (coefficient 89, 6.5 ft range). The smallest, from October 18 to 19 (coefficient 43, 3.3 ft).
Type of tide
In Saint Augustine Beach the tide is semidiurnal: two high and two low tides a day, of similar height. Types of tides
2026 extremes: the highest tide of the year is on November 25 (6.5 ft) and the lowest, on June 15 (-1.0 ft).
Reference levels
- Highest astronomical tide (HAT)6.9 ft
- Mean higher high water (MHHW)5.1 ft
- Mean high water (MHW)4.8 ft
- Mean sea level (MSL)2.4 ft
- Mean low water (MLW)0.2 ft
- Mean lower low water (MLLW)0.0 ft
- Lowest astronomical tide (LAT)-1.3 ft
Heights above mean lower low water (MLLW), the zero of US nautical charts.
Questions about the tides in Saint Augustine Beach
What time is high tide today in Saint Augustine Beach?
High tide today is at 10:12 am (6.5 ft) and 10:34 pm (5.1 ft). Low tide is at 3:34 am and 4:27 pm.
What time is high tide tomorrow in Saint Augustine Beach?
On Thursday, October 29, high tide at 11:04 am and 11:28 pm and low tide at 4:24 am and 5:23 pm.
What is today's tide coefficient?
87: average coefficient. 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 Saint Augustine Beach?
The tide is semidiurnal: two high and two low tides a day, of similar height. 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 Saint Augustine Beach today
Tides near Saint Augustine Beach
- Saint Augustine South ▲ 10:46 am
- Butler Beach ▲ 11:44 am
- Matanzas Inlet ▲ 10:30 am
- Beverly Beach ▲ 3:05 am
- Sawgrass ▲ 12:32 am
- Green Cove Springs ▲ 3:15 am
Each place with its own tide station; next to it, the time of its first high tide today.
Learn more
Tides from the St. Augustine Beach station (NOAA), 0.4 mi from Saint Augustine Beach. Times and heights are its predictions. Station data attribution: Slackwater database (https://github.com/openwatersio/slackwater-database)