89°
Mostly Sunny
2%
80
Monroe County, FL · Atlantic Ocean
Sombrero Beach
411 Sombrero Beach Rd, Marathon, FL 33050
Marathon's flagship free city beach — a wide curve of imported sand at the end of Sombrero Beach Road, palm-shaded picnic pavilions, and one of the most reliable sea-turtle nesting beaches in the Middle Keys (May–October). Quiet, family-oriented, with shallow protected water.
Today's Conditions
Great day for a beach walk.
86°F water
Full NWS forecast for Today
Mostly sunny, with a high near 89. East wind around 10 mph.
Tonight
Mostly clear, with a low around 83. East wind around 10 mph.
Weather
- 89°F air — hot — hydrate and seek shade
- Sunny skies — mostly sunny
Water
- 86°F water — warm — full-day swim weather
Safety
- UV 10 (extreme) — spf 50+ mandatory, limit mid-day exposure
77 /100
great
76 Swim
74 Sunbathe
83 Walk
80 Photo
Best for walking today
Atmosphere
Air Temp
89°F
Partly Cloudy
Wind
10 mph
E
Rain
2%
Today
UV Peak
10 Very High
High 11 AM–04 PM · burn in ~20m
Burn-free before 09 AM & after 06 PM
Tomorrow
89°F
Sunny
Water
Water Temp
86°F
Swimming weather
Next Low Tide
6:04 PM
-0.2 ft · in 2.8h
Water Quality
Clean
31 MPN/100mL · Enterococcus
USGS · sampled 6mo ago
Sun & Moon
Sunrise
6:43 AM
Sunset
8:16 PM
Moon · 5%
Waning Crescent
Spring tides — bigger range
Tides
| Time | Type | Height |
|---|---|---|
| 10:19 AM | High | 1.2 ft |
| 6:04 PM | Low | -0.2 ft |
| Time | Type | Height |
|---|---|---|
| 11:15 AM | High | 1.2 ft |
| 6:52 PM | Low | -0.2 ft |
| Time | Type | Height |
|---|---|---|
| 12:31 PM | High | 1.2 ft |
| 7:37 PM | Low | -0.1 ft |
| Time | Type | Height |
|---|---|---|
| 1:51 PM | High | 1.2 ft |
| 8:21 PM | Low | 0.0 ft |
| Time | Type | Height |
|---|---|---|
| 3:01 PM | High | 1.2 ft |
| 9:03 PM | Low | 0.1 ft |
| Time | Type | Height |
|---|---|---|
| 6:04 AM | High | 0.7 ft |
| 8:41 AM | Low | 0.5 ft |
| 4:01 PM | High | 1.1 ft |
| 9:45 PM | Low | 0.2 ft |
| Time | Type | Height |
|---|---|---|
| 6:17 AM | High | 0.7 ft |
| 9:45 AM | Low | 0.4 ft |
| 4:54 PM | High | 0.9 ft |
| 10:26 PM | Low | 0.3 ft |
High/low predictions from NOAA station 8723970, refreshed on every build. Times shown local.
7-Day Beach Day Forecast
89°
Sunny
3%
77
89°
Sunny
3%
77
89°
Mostly Sunny
6%
77
90°
Mostly Sunny
3%
79
90°
Sunny
2%
79
89°
Sunny
7%
81
What to Bring Today
- critical SPF 50 sunscreen UV index 10 — very high
- recommended Umbrella or shade warm day, light wind
- optional Swimsuit - water is swimmable Water is 86°F
- critical Extra water / electrolytes 89°F - heat risk
- recommended Cooling towel or hat sustained heat
Always remember water bottle, trash bag (leave no trace).
Beach Info
Parking
License-plate paid parking: $5/hour first 2 hours, $2/hour after.
Dogs
Leashed dogs welcome. Owners must pick up after pets.
Entry Fee
Free
Address
411 Sombrero Beach Rd, Marathon, FL 33050
Amenities
Frequently Asked
Is it safe to swim at Sombrero Beach today?
Sombrero Beach shows a live water-quality reading (bacteria levels) and today's swim-safety score at the top of this page, refreshed on every update. No lifeguards are on duty, so check the day's conditions and swim with caution. Always review the current advisories, surf, and rip-current notes before getting in the water.
Is Sombrero Beach dog-friendly?
Leashed dogs welcome. Owners must pick up after pets.
Is there an entry fee at Sombrero Beach?
Entry to Sombrero Beach is free.
Are there lifeguards at Sombrero Beach?
No lifeguards are stationed at Sombrero Beach. Swim at your own risk and keep close watch on children.
What amenities are at Sombrero Beach?
Amenities at Sombrero Beach include restrooms, showers, picnic pavilions, volleyball courts, playground, kayak launch.
When is the water warmest at Sombrero Beach?
Atlantic water temperatures peak in August. Northern beaches (ME, NH, MA) run cool — typically 60-68°F at the summer peak. Mid-Atlantic (NJ, DE, MD, VA) hits 74-76°F. The Carolinas and Florida Atlantic warm into the 80s and stay swimmable from May through October.
Where is Sombrero Beach located?
Sombrero Beach is in Monroe County, FL, at 411 Sombrero Beach Rd, Marathon, FL 33050.
Nearby Beaches
Updated · Data from NOAA, NWS