ENSO Explained

El Niño-Southern Oscillation (ENSO) is the single most powerful driver of year-to-year climate variability on Earth — and the most important climate signal for agricultural commodity markets and food security.

Why ENSO Matters for Commodity Markets

A 40-year analysis of commodity price records shows that agricultural prices spike an average of 12–28% within 6 months of a strong ENSO phase transition. Soybeans, coffee, and rice show the strongest historical correlation, driven by the simultaneous production stress that ENSO creates across multiple major producing regions.

Unlike single-country weather events, ENSO simultaneously affects Australia (wheat), Brazil and Argentina (soybeans, corn), East Africa (coffee, cereals), Southeast Asia (rice, palm oil), and South Asia (wheat, rice). This multi-region simultaneity is what makes ENSO the dominant climate signal in global commodity markets.

The El Niño One Wave Monitoring System

We track ENSO phase using the official NOAA CPC Oceanic Niño Index — the 3-month running mean of sea surface temperature anomalies in the Niño 3.4 region. The live platform shows the current ONI value, the 11-year historical chart, and real-time agricultural temperature anomalies across 6 global monitoring regions.

Full methodology at elnino-onewave.pages.dev/methodology · Live data at elnino-onewave.pages.dev/app