Marine forecast
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Marathon

Tuesday 20 October

Partly Cloudy

Change

Poor diving today

2.1 ft of swell, a 0.1 second period, 21 mph out of the NE. Too much wind.

Morning Poor 2.1 ft · 21 mph NE
Afternoon Poor 2.2 ft · 22 mph ENE
2.1ft Swell
0.1s Period
21NE Wind
77° Water
6 boats going out from Marathon today

How we score conditions

Next 7 days morning / afternoon

Today Oct 20 PoorAM PoorPM 2.1 ft 0.1s
21 NE
6 boats Wed Oct 21 AverageAM AveragePM 1.8 ft 0.1s
20 NNE
6 boats Thu Oct 22 AverageAM AveragePM 1.1 ft 3.8s
15 NE
6 boats Fri Oct 23 PoorAM PoorPM 2.1 ft 3.9s
21 NE
6 boats Sat Oct 24 PoorAM AveragePM 2.4 ft 3.9s
24 NE
6 boats Sun Oct 25 No DiveAM No DivePM 3.9 ft 3.9s
32 NE
6 boats Mon Oct 26 PoorAM PoorPM 3 ft 3.9s
24 ENE
6 boats

Along the coast today tap to switch S to N

Key West Poor 3.4 ft 5.6s Marathon Poor 2.1 ft 0.1s Islamorada Poor 2.9 ft 4.7s Key Largo Poor 2.9 ft 4.7s Miami Beach Poor 6.4 ft 12.3s Fort Lauderdale Poor 6.6 ft 12.4s Pompano Beach Poor 6.6 ft 12.4s Deerfield Beach Poor 6.6 ft 12.4s Boynton Beach Poor 7 ft 12.1s West Palm Beach Poor 7.7 ft 12.1s Jupiter Poor 8.9 ft 12.1s Stuart Poor 7.8 ft 12.2s Port St Lucie Poor 7.8 ft 12.2s
All locationstap a pin to switch
Map of Florida
Tides and daylightMarathon
  • Low 01:24
  • High 07:58
  • Low 15:21
  • Sunrise and sunset07:24 AM · 06:53 PM
Charts and the full tablewaves, wind, air, humidity, rain

Waves (ft)

Last update: 2026-10-20 11:00:26

Winds (mph)

Last update: 2026-10-20 11:00:26

Extended forecast

Tuesday-20 Wednesday-21 Thursday-22 Friday-23 Saturday-24 Sunday-25 Monday-26
AMPM AMPM AMPM AMPM AMPM AMPM AMPM
Weather
Partly Cloudy Sunny Overcast Patchy light rain in area with thunder Light rain shower Light rain shower Light rain shower
Partly Cloudy Sunny Overcast Patchy light rain in area with thunder Light rain shower Light rain shower Light rain shower
Temp (f) 72° - 80° 71° - 80° 70° - 80° 71° - 79° 74° - 79° 76° - 78° 79° - 80°
Humidity (%) 72% 70% 73% 69% 78% 83% 81%
Marine
Waves (ft) 2 2 2 2 1 1 2 2 2 2 4 5 3 3
Period (secs) 0 0 0 0 4 4 4 4 4 4 4 4 4 4
Wind (mph) navigation21 navigation22 navigation20 navigation17 navigation15 navigation15 navigation21 navigation22 navigation24 navigation19 navigation32 navigation35 navigation24 navigation22
Water temp (f) 77° 77° 81° 81° 81° 81° 77° 77° 81° 81° 81° 77° 81° 77°
High tide 07:58 none 09:04 none 10:51 19:26 01:26 20:07 01:51 21:00 02:07 21:56 02:12 22:57
Low tide 01:24 15:21 02:40 16:09 03:49 20:04 04:53 21:40 05:52 22:56 06:49 23:58 07:44 19:21
Sunrise / sunset
Sunrise 07:24 07:24 07:24 07:24 07:24 07:24 07:24
Sunset 18:53 18:53 18:53 18:53 18:53 18:53 18:53