90°
Slight Chance Showers And Thunderstorms
17%
42
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
Decent day for sunbathing.
Thunderstorms · 91°F water
Full NWS forecast for This Afternoon
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 90. Southeast wind around 10 mph. Chance of precipitation is 20%.
Tonight
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 82. Southeast wind around 10 mph. Chance of precipitation is 20%.
Weather
- 90°F air — hot — hydrate and seek shade
Water
- 91°F water — warm — full-day swim weather
Safety
- Thunderstorms — stay off the water when storms approach
- UV 11 (extreme) — spf 50+ mandatory, limit mid-day exposure
37 /100
ok
25 Swim
60 Sunbathe
33 Walk
33 Photo
Best for sunbathing today
Water level 0.7 ft above predicted
Observed water level is running higher than the astronomical tide prediction. Expect a narrower beach, faster-rising water, and stronger near-shore currents than the tide chart suggests.
Atmosphere
Air Temp
90°F
Mostly Clear
Wind
10 mph
SE
Rain
17%
This Afternoon
UV Peak
11 Extreme
High 11 AM–04 PM · burn in ~18m
Burn-free before 09 AM & after 06 PM
Tomorrow
91°F
Slight Chance Showers And Thunderstorms
Water
Water Temp
91°F
Swimming weather
Next Low Tide
10:26 PM
0.3 ft · in 1.4h
Water Quality
Clean
31 MPN/100mL · Enterococcus
USGS · sampled 7mo ago
Sun & Moon
Sunrise
6:45 AM
Sunset
8:15 PM
Moon · 18%
Waxing Crescent
Neap tides — smaller range
Tides
| 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 |
| Time | Type | Height |
|---|---|---|
| 6:01 AM | High | 0.8 ft |
| 10:52 AM | Low | 0.3 ft |
| 5:45 PM | High | 0.8 ft |
| 11:08 PM | Low | 0.3 ft |
| Time | Type | Height |
|---|---|---|
| 6:13 AM | High | 0.9 ft |
| 12:02 PM | Low | 0.2 ft |
| 6:39 PM | High | 0.6 ft |
| 11:50 PM | Low | 0.4 ft |
| Time | Type | Height |
|---|---|---|
| 6:45 AM | High | 0.9 ft |
| 1:15 PM | Low | 0.1 ft |
| 10:13 PM | High | 0.5 ft |
| Time | Type | Height |
|---|---|---|
| 12:33 AM | Low | 0.4 ft |
| 7:25 AM | High | 0.9 ft |
| 2:31 PM | Low | 0.0 ft |
| Time | Type | Height |
|---|---|---|
| 8:10 AM | High | 1.0 ft |
| 3:49 PM | Low | -0.0 ft |
| Time | Type | Height |
|---|---|---|
| 8:58 AM | High | 0.9 ft |
| 4:57 PM | Low | -0.1 ft |
High/low predictions from NOAA station 8723970, refreshed on every build. Times shown local.
7-Day Beach Day Forecast
91°
Slight Chance Showers And Thunderstorms
19%
40
92°
Slight Chance Showers And Thunderstorms
16%
40
91°
Sunny
6%
77
89°
Sunny
5%
80
89°
Sunny
7%
79
89°
Slight Chance Showers And Thunderstorms then Sunny
20%
42
What to Bring Today
- critical SPF 50 sunscreen UV index 11 — very high
- recommended Umbrella or shade warm day, light wind
- optional Swimsuit - water is swimmable Water is 91°F
- critical Extra water / electrolytes 90°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