Overview

Grassy Flats Resort is a kitesurfing spot located in the Middle Keys, on the bay side (Florida Bay), right next to the famous Curry Hammock State Park. The resort offers access to the same shallow, turquoise waters that make this area famous. The easterly trade winds blow side-shore across the bay's flat water, offering perfect conditions for all levels. It's an excellent base to explore the Marathon area with direct access to the best water body in the Keys.

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Spot forecast for Grassy Flats Resort and Beach Club

Sunrise 07:24 · Sunset 18:52

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< 7 kn7–12 kn13–20 kn21–30 kn31–40 kn41+ kn Gusts Your minimum: 7 kn

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Swell and waves

Swell and tides over 8 days. Premium members see the swell and tides over 8 days. Without a subscription: 5 days.

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Wave height: < 0.5 m 0.5–1 m 1–2 m 2–3 m ≥ 3 m

Swell data by Open-Meteo Marine

Tides

Heights above lowest astronomical tide, in the spot's local time. Computed 2 km from the spot.

Tuesday 20 October High tide 04:54 · 0.6 m Low tide 11:55 · 0.3 m High tide 18:32 · 0.6 m Low tide 23:47 · 0.4 m
Wednesday 21 October High tide 06:05 · 0.6 m Low tide 12:42 · 0.3 m High tide 18:52 · 0.6 m
Thursday 22 October Low tide 00:44 · 0.3 m High tide 06:58 · 0.7 m Low tide 13:22 · 0.3 m High tide 19:17 · 0.6 m
Friday 23 October Low tide 01:33 · 0.3 m High tide 07:45 · 0.7 m Low tide 13:57 · 0.3 m High tide 19:46 · 0.7 m
Saturday 24 October Low tide 02:17 · 0.2 m High tide 08:31 · 0.7 m Low tide 14:29 · 0.3 m High tide 21:21 · 0.7 m

Grassy Flats Resort and Beach Club: when to go?

Rideable days and hours computed for a minimum wind of 7 knots · log in to set your own (foil, twin-tip…)

Season · peak

284h

in January · 30 rideable days

The season runs from October to April, peaking in January: 28 rideable days a month and 284 hours of usable wind, at 24 °C. The low point is September, at 20 days.

Rideable days per month

Wind strength when it is rideable

7-12 knots · 61%13-20 knots · 36%21-30 knots · 3%31+ knots · under 1%

When the spot works, wind sits mostly between 7 and 12 knots — 61% of rideable hours. Big-kite territory. The coldest month is January, at 21 °C. The wettest month is June, with 309 mm.

Monthly averages: Grassy Flats Resort and Beach Club

Monthly averages — Grassy Flats Resort and Beach Club — averaged over 2 years of records — Weather data by Open-Meteo.com — How it is calculated
Month	Rideable days	Usable wind	Temperature	Rain
January	30.0	284 h	21 °C	49 mm
February	27.0	272 h	22 °C	65 mm
March	27.5	299 h	24 °C	102 mm
April	29.0	361 h	25 °C	12 mm
May	25.0	295 h	28 °C	185 mm
June	27.5	367 h	29 °C	309 mm
July	28.0	339 h	30 °C	140 mm
August	21.0	221 h	30 °C	256 mm
September	20.0	175 h	30 °C	197 mm
October	27.5	308 h	27 °C	160 mm
November	28.0	312 h	24 °C	36 mm
December	28.5	293 h	22 °C	49 mm

Photo gallery of Grassy Flats Resort and Beach Club

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Technical details of Grassy Flats Resort and Beach Club spot

The spot works with winds from N, NNE, NE, ENE, E, ESE, SE, SSE, S, NW, NNW.

Rideable Not rideable

Spot opening date · Required level

Spot opening date: Open all year round
Required level: Beginner

On the water

The water body is identical to nearby Curry Hammock — shallow Florida Bay waters with a sandy and seagrass bottom. Exceptional flat water conditions in trade winds. Depth varies from 1 to 5 feet depending on the tide. The water is warm (75-86°F) and crystal clear. Immense riding space in the bay. Ideal for foiling in ultra-flat conditions.

Hazards

Same precautions as Curry Hammock: stingrays in seagrass (stingray shuffle), possible tidal currents. At low tide, very shallow areas. Water access is from the resort — verify access conditions. Maximum sun protection recommended.

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Vacation Rentals of the Florida FL US WEATHERSTEM4.9 kmsource madis - NOAA

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Additional stations

The Florida Keys - Marathon International Airport10.2 km

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source noaa
GW2951 Marathon0.8 km

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Webcams near Grassy Flats Resort and Beach Club

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Nearby spots

All spots: Florida

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Grassy Flats Resort and Beach Club kitesurf and wingfoil spot