Grassy Key, South Side Tides Today
Near Marathon · Hawk Channel · Monroe County, FL · NOAA 8723933
- Low12:48AM0.3 ft
- High7:11AM2.3 ft
- Low12:44PM0.6 ft
- High6:51PM2.7 ft
Local Eastern time. Heights in feet above average low water (MLLW). Shaded bands are today's best fishing windows.
Fishing Outlook
The high tide at 7:11 AM lands near sunrise, and the tides are among the strongest this week.
Best Windows Today
- 6:11 to 8:11 AMaround high tide
- 11:44 AM to 1:44 PMaround low tide
- 5:51 to 7:51 PMaround high tide
Solunar Times
- Minor3:36 to 4:36 AMmoonrise
- Major9:03 to 11:03 AMmoon overhead
- Minor3:25 to 4:25 PMmoonset
- Major9:25 to 11:25 PMmoon underfoot
Major periods are the two hours around the moon overhead or underfoot. Minor periods are the hour around moonrise and moonset.
Fishing Outlook
The high tide at 8:00 AM lands near sunrise, and the tides are among the strongest this week.
Best Windows Today
- 7:00 to 9:00 AMaround high tide
- 12:19 to 2:19 PMaround low tide
Solunar Times
- Minor4:32 to 5:32 AMmoonrise
- Major9:48 to 11:48 AMmoon overhead
- Minor3:58 to 4:58 PMmoonset
- Major10:11 PM to 12:11 AMmoon underfoot
Major periods are the two hours around the moon overhead or underfoot. Minor periods are the hour around moonrise and moonset.
Fishing here? See Florida fishing license info and size and bag limits from the Florida Fish and Wildlife Conservation Commission.
Weather and Wind
- This AfternoonHigh 83°Sunny 4% rainNE 5 mph
- TonightLow 77°Mostly clear 9% rainNE 5 mph
- SaturdayHigh 81°Sunny 9% rainN 5 mph
Boating Forecast
Hawk Channel from Craig Key to west end of Seven Mile Bridge out to the reef · issued Fri 10:20 AM
- This Afternoon
- Northeast winds 5 to 10 knots. Seas around 1 foot. Nearshore waters smooth to a light chop.
- Tonight
- North to northeast winds 5 to 10 knots. Seas around 1 foot. Nearshore waters smooth to a light chop.
- Saturday
- North to northeast winds 5 to 10 knots. Seas around 1 foot. Nearshore waters smooth to a light chop.
From the National Weather Service. Arrows point the way the wind blows.
Next 7 Days
30 Day Tide Table| Day | Fishing | High Tides | Low Tides | Moon |
|---|---|---|---|---|
| SaturdayNov 7 | 8:00 AM 2.2 ft7:24 PM 2.8 ft | 1:36 AM 0.2 ft1:19 PM 0.6 ft | ||
| SundayNov 8 | 8:43 AM 2.0 ft7:56 PM 2.8 ft | 2:18 AM 0.1 ft1:53 PM 0.6 ft | ||
| MondayNov 9 | 9:22 AM 1.9 ft8:29 PM 2.8 ft | 2:58 AM 0.1 ft2:25 PM 0.6 ft | ||
| TuesdayNov 10 | 9:59 AM 1.8 ft9:03 PM 2.7 ft | 3:36 AM 0.1 ft2:57 PM 0.6 ft | ||
| WednesdayNov 11 | 10:36 AM 1.7 ft9:39 PM 2.7 ft | 4:15 AM 0.1 ft3:28 PM 0.6 ft | ||
| ThursdayNov 12 | 11:14 AM 1.6 ft10:17 PM 2.6 ft | 4:56 AM 0.1 ft3:58 PM 0.6 ft | ||
| FridayNov 13 | 11:55 AM 1.6 ft10:58 PM 2.5 ft | 5:40 AM 0.2 ft4:29 PM 0.7 ft |
About the Tides at Grassy Key, South Side
Grassy Key, South Side gets two high tides and two low tides most days, and they are not a matched pair. One high or one low each day is clearly bigger than the other. On a typical day the water rises and falls about 2.1 feet.
Over the next two weeks the biggest tides come on Monday, November 9, when the water moves about 2.7 feet. The lowest water is 0.1 ft on Tuesday, November 10 at 3:36 AM, and the highest is 2.8 ft on Sunday, November 8 at 7:56 PM.
NOAA works out the times here from its reference station at Key West, adjusted for this location.
Official NOAA prediction for station 8723933, Grassy Key, south side, Hawk Channel, timed from its reference station Key West (8724580). Updated Fri, 06 Nov 2026 17:46 GMT.