Seaweed growing calendar

3 regions tracked across northern and tropical hemispheres. 3 critical weather-sensitive windows globally.

Annual cycle by region

Each row tracks one production region across the calendar year. Amber bars mark critical weather-sensitive windows where yield outcomes are determined.

PLANTINGVEGETATIVECRITICAL / FLOWERINGHARVEST
Region
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
East China Sea
Visayas and Mindanao
Sulawesi and Eastern Indonesia

Why these windows matter

Seaweed yields are determined disproportionately during a small number of weather-sensitive windows. Across the 3 production regions tracked here, 3 windows show outsized sensitivity to rainfall, temperature, or storm damage. Buyers who track these windows can position contracts ahead of price moves driven by yield uncertainty.

The most consequential weather risks for seaweed are concentrated in specific months. Tropical Storm and Typhoon Damage These forces drive the seasonal volatility that shows up in futures markets weeks or months later.

The calendar above is structural, not predictive — it shows where and when seaweed grows under normal conditions. Weather anomalies (El Niño, La Niña, regional droughts) shift these windows by weeks and compound across regions. ATLAS tracks these anomalies in its supply-risk data and surfaces them on the seaweed risk surface.

Find seaweed suppliers active in January–December (Visayas and Mindanao)

ATLAS lists verified seaweed suppliers with current-season inventory and capacity. Filter by origin, harvest window, and compliance posture in one view.

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