Decameron Barú beach forecast: weather, water & waves
Isla Barú, CO · Colombia Caribbean Coast, Colombia · 10.180, -75.650
Updated : low seaweed, beach grade C-, sea 87°F.
Veabird's call
Saturday grades B with calm water and 87°F water, while Friday is C- and wet.
January and February grade B+, a better window than now for Rosario Islands and Playa Blanca trips.
Grades from Veabird's beach forecast; wording by AI (Muse Spark), checked against the forecast. Updated Nov 13, 01:00 UTC.
Tell me when Decameron Barú grades A
One email when the beach grades A, at most once a week per beach. We only ask for your email address, and every email has a one-click unsubscribe.
We email you a link to confirm first. Privacy
Plan your trip
Where to stay nearby
Partner links: Veabird may earn a commission at no cost to you. Partners never affect forecasts or scores.
Questions about Decameron Barú
Does Decameron Barú get sargassum (seaweed)?
Only a little in most years. At Decameron Barú the typical-year risk stays low, even around July, the usual peak (moderate or heavier seaweed on the beach in an estimated 14% of weeks). Landings vary by year, wind and currents.
How warm is the water at Decameron Barú?
About 86°F in November. The sea is warmest in September (about 87°F) and coolest in February and March (about 83°F).
When is the best time to visit Decameron Barú?
For warm water and dry weather, aim for December through April. February is usually the quietest of those, with about 4 rainy days and a sea near 83°F.
When is hurricane season at Decameron Barú, and how often do storms hit?
The Atlantic hurricane season runs June through November and peaks around September. A tropical storm passed within 86 miles of Decameron Barú in 1 of the 55 seasons from 1971 to 2025, and a hurricane within 58 miles in 0.
Sargassum season at Decameron Barú
Low sargassum risk year-round at Decameron Barú: even around July, the usual peak, Veabird estimates moderate or heavier seaweed on the beach in about 14% of weeks. Actual landings vary a lot by year, wind and currents; check the live conditions above.
Estimated share of weeks in each month with moderate or heavier seaweed on the beach. Veabird takes the landing season seen on Quintana Roo's beaches (a Puerto Morelos beach camera, 2015–2020, and the Mexican Navy's beach alerts, 2022–2026), the nearest coast with a multi-year beach record (this one has none), and scales it by how often NOAA AOML satellites see notable seaweed within about 20 km of this stretch of coast: 11% of weeks here on average, against 54% off Quintana Roo, so 21% of that season. The satellite share (2016–2024, the top fifth of all coast-weeks, adjusted for this beach's exposure of 15%) measures seaweed offshore, not on the sand: off the Riviera Maya it reads high even in winter, when little lands. Very low under 10%, Low 10–24%, Moderate 25–44%, High 45–69%, Very high 70%+. Beach faces 280°; onshore winds from that direction push seaweed ashore. Satellite sargassum data: USF Optical Oceanography Lab (Sargassum Watch System) via NOAA AOML. The satellite record as open data.
Colombia's Caribbean coast month by month
Typical weather, water temperature, seaweed and crowds for every month: the best time to visit Colombia's Caribbean coast.
- Colombia's Caribbean coast in January
- Colombia's Caribbean coast in February
- Colombia's Caribbean coast in March
- Colombia's Caribbean coast in April
- Colombia's Caribbean coast in May
- Colombia's Caribbean coast in June
- Colombia's Caribbean coast in July
- Colombia's Caribbean coast in August
- Colombia's Caribbean coast in September
- Colombia's Caribbean coast in October
- Colombia's Caribbean coast in November
- Colombia's Caribbean coast in December
Weather, water & seaweed by month at Decameron Barú
Average highs run from about 84°F in October and November to 90°F in March. The sea is warmest in September (about 87°F) and coolest in February and March (about 83°F). February is usually the driest, with about 4 rainy days; October is the wettest, with about 27 rainy days.
| Month | Avg high | Sea | Rainy days | Sargassum |
|---|---|---|---|---|
| Jan | 89°F | 84°F | 5 | Very low |
| Feb | 89°F | 83°F | 4 | Very low |
| Mar | 90°F | 83°F | 7 | Very low |
| Apr | 88°F | 84°F | 16 | Very low |
| May | 88°F | 86°F | 25 | Very low |
| Jun | 86°F | 86°F | 26 | Low |
| Jul | 88°F | 86°F | 22 | Low |
| Aug | 86°F | 86°F | 24 | Very low |
| Sep | 86°F | 87°F | 24 | Very low |
| Oct | 84°F | 86°F | 27 | Very low |
| Nov | 84°F | 86°F | 24 | Very low |
| Dec | 87°F | 85°F | 10 | Very low |
Monthly averages from 6 years of ERA5 reanalysis (Open-Meteo) for this area's 0.5° grid cell; rainy days have at least 1 mm (0.04 in). Sargassum is the typical-year estimate described above. Any given year can differ.
Cleanup & barriers
- Offshore barriers
- None.
- Public cleanup
- Cartagena and Santa Marta municipal crews clean urban beaches.
- Resort crews
- Large hotels rake frontage daily.
- Typical clearing time
- Sargassum rare; debris and brown river water more common issues.
Safety notes
US State Dept: Colombia, Level 3 (verify)
- Scams and drugging ('scopolamine') reported in Cartagena nightlife: never leave drinks
- Use hotel-booked boats to Rosario Islands
- Beach vendors in Bocagrande can be aggressive; agree prices first
- Rough surf at Palomino and Tayrona; many beaches unsafe for swimming
Check official advisories and local flags before swimming. Decomposing sargassum releases hydrogen sulfide; avoid heavy piles.
Things to do near Isla Barú, CO
- Cartagena walled city (UNESCO)
- Rosario Islands & Playa Blanca (Barú)
- Tayrona National Park
- Ciudad Perdida trek
- Palomino river tubing
- Minca coffee farms
Fly in for the best beach days
Suggested dates are a week in October. Change them to match the live forecast above.
Opens a flight search in a new tab. Partner link: Veabird may earn a commission.
Nearest airports
- Rafael Núñez Intl (Cartagena) (CTG), ~33 km
Nearby resorts
- Sofitel Barú Calablanca Isla Barú, CO · 6 km
- Rosario Islands Lodges Islas del Rosario, CO · 12 km
- Hyatt Regency Cartagena Bocagrande, Cartagena, CO · 27 km
- Sofitel Legend Santa Clara Cartagena, CO · 30 km
- Las Américas Torre del Mar Cartagena, CO · 35 km
- Irotama Resort Santa Marta, CO · 188 km
Embed this forecast
Hotels and travel sites can show live conditions for Decameron Barú for free. Get the widget · Data & API