Grassy Key tides
North Side · Florida Bay · Florida · NOAA 8723921Now
High tide
9:39 pm
Tide curve Today
7 days tap a day
Best fishing times
TodayWeekend outlook
How these times are worked out
Major periods are the two hours centred on the moon passing overhead or underfoot; minor periods are the hour centred on moonrise and moonset (solunar tables). Moon and sun times are computed for this station’s position with the PyEphem astronomy library; high and low tides are NOAA predictions. A period is marked best bet when it overlaps sunrise or sunset (within an hour) or contains a high or low tide. This is a traditional angler’s rule of thumb, not a guarantee, and it does not include weather, season or local rules.
Tide table, next 7 days
Today in Grassy Key, high tide is at 7:29 am and 9:39 pm and low tide at 1:25 am and 3:50 pm.
| Sunday 1 November6:31 am 5:43 pm · Last quarter | ||
|---|---|---|
| Low | 1:25 am | 1.1 ft |
| High | 7:29 am | 1.6 ft |
| Low | 3:50 pm | 0.5 ft |
| High | 9:39 pm | 1.0 ft |
| Monday 2 November6:32 am 5:43 pm · Last quarter | ||
| Low | 2:57 am | 1.1 ft |
| High | 8:53 am | 1.5 ft |
| Low | 4:56 pm | 0.6 ft |
| High | 10:43 pm | 1.1 ft |
| Tuesday 3 November6:32 am 5:42 pm · Waning crescent | ||
| Low | 4:35 am | 1.0 ft |
| High | 10:23 am | 1.5 ft |
| Low | 5:53 pm | 0.7 ft |
| High | 11:32 pm | 1.3 ft |
| Wednesday 4 November6:33 am 5:42 pm · Waning crescent | ||
| Low | 5:58 am | 0.9 ft |
| High | 11:43 am | 1.4 ft |
| Low | 6:40 pm | 0.8 ft |
| Thursday 5 November6:33 am 5:41 pm · Waning crescent | ||
| High | 12:13 am | 1.4 ft |
| Low | 7:06 am | 0.7 ft |
| High | 12:48 pm | 1.4 ft |
| Low | 7:21 pm | 0.9 ft |
| Friday 6 November6:34 am 5:40 pm · Waning crescent | ||
| High | 12:50 am | 1.5 ft |
| Low | 8:02 am | 0.5 ft |
| High | 1:43 pm | 1.4 ft |
| Low | 7:58 pm | 0.9 ft |
| Saturday 7 November6:35 am 5:40 pm · Waning crescent | ||
| High | 1:23 am | 1.6 ft |
| Low | 8:50 am | 0.3 ft |
| High | 2:32 pm | 1.3 ft |
| Low | 8:33 pm | 0.9 ft |
Monthly tide tables
Printable tables with every high and low, sunrise, sunset and moon phases.
Nearby stations
- Toms Harbor Channel, FL1 mi
- Grassy Key (South Side), FL2 mi
- Duck Key, FL2 mi
- Toms Harbor Cut, FL2 mi
- Conch Key, FL4 mi
- Fat Deer Key, FL5 mi
- Long Key, FL6 mi
- Key Colony Beach, FL6 mi
King tides and lowest tides
The highest highs and lowest lows NOAA predicts here over the next 12 months, at least 4 days apart.
Highest high tides
Bars compare the five dates in each list. Tap a date for that month’s full table.
About this station
Grassy Key is a subordinate NOAA station in Florida. Its high and low tides are offsets from the reference station Key West (8724580); the curve between them is a smooth estimate.
- Avg. tidal range0.8 fthigh to next low
- Tides per day42 highs, 2 lows · 6 h 13 m apart
- Highest, 13 mo1.8 ft30 Oct 2027, 3:51 am
- Lowest, 13 mo−0.7 ft21 Jan 2027, 9:35 am
- Minus tides203lows below zero, 13 mo
Nearest stations
24.7717° N, 80.9400° W · NOAA 8723921 · Eastern time
Grassy Key tide FAQ
When is high tide in Grassy Key next?
The next high tide is at 9:39 pm today (Sunday 1 November), reaching 1.0 ft. After that, the next high is at 8:53 am tomorrow (Monday 2 November) (1.5 ft).
When are today’s low tides in Grassy Key?
There are two low tides today: 1:25 am (1.1 ft) and 3:50 pm (0.5 ft).
How often does the tide change in Grassy Key?
The tide normally turns four times a day: two highs and two lows, about 6 h 13 min apart on average. The two highs are often quite different in height (mixed tides). 53 of the 397 days in NOAA’s predictions have only three turns of the tide.
How much does the water rise and fall in Grassy Key?
On average the tide rises or falls 0.8 ft from one turn to the next, and 1.3 ft from the day’s highest to lowest water. The biggest predicted swing in the next 13 months is 2.2 ft.
When are the biggest tides in Grassy Key?
The year’s top tide is predicted at 1.8 ft on Saturday 30 October 2027 at 3:51 am (waxing crescent). Other king tides: 1.8 ft on 2 October 2027, 1.8 ft on 26 November 2026 and 1.8 ft on 30 August 2027. The lowest is −0.7 ft on 21 January 2027 at 9:35 am.
What are today’s best fishing times in Grassy Key?
The best bets today are 5:08–7:08 am (moon overhead, around sunrise) and 5:35–7:35 pm (moon underfoot, around sunset). These solunar periods line up with sunrise, sunset or a turn of the tide.
Figures from NOAA CO-OPS predictions for station 8723921, next 13 months. Heights above MLLW.