VeabirdBeach

Decameron Isleño: sargassum, weather & water today

San Andrés, CO · San Andrés & Providencia, Colombia · 12.585, -81.698

Open full 16-day forecast →

Plan your trip

Partner links: Veabird may earn a commission at no cost to you. Partners never affect forecasts or scores.

Sargassum season at Decameron Isleño

Sargassum risk at Decameron Isleño typically peaks around June (low in a typical year). Lowest-risk months: January, February, March, April, May, June, July, August, September, October, November, December. Actual landings vary a lot by year, wind and currents; check the live conditions above.

Typical-year risk from the published seasonality of the Great Atlantic Sargassum Belt × this beach's exposure (25%). Beach faces 20°; onshore winds from that direction push seaweed ashore.

MonthTypical risk
JanuaryVery low
FebruaryVery low
MarchVery low
AprilVery low
MayLow
JuneLow
JulyLow
AugustLow
SeptemberVery low
OctoberVery low
NovemberVery low
DecemberVery low

Cleanup & barriers

Offshore barriers
None.
Public cleanup
Coralina (environmental authority) and municipality clean Spratt Bight.
Resort crews
Decameron properties rake daily.
Typical clearing time
East-shore landings cleared within a day or two.

Safety notes

US State Dept: Colombia, Level 3 (verify; islands generally lower risk)

Check official advisories and local flags before swimming. Decomposing sargassum releases hydrogen sulfide; avoid heavy piles.

Things to do near San Andrés, CO

Fly in for the best beach days

Suggested dates fall in November, typically the lowest-seaweed month ahead for Decameron Isleño. 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

Nearby resorts

Embed this forecast

Hotels and travel sites can show live conditions for Decameron Isleño for free. Get the widget · Data & API

Coordinates approximate; forecasts are estimates, not safety guidance.