About El Niño Monitor
A single, trustworthy place to follow El Niño — what is happening now, how it works, and what it has done before.
What we do
El Niño Monitor tracks the El Niño–Southern Oscillation (ENSO) and nothing else. We read the official advisories, diagnostic discussions and bulletins issued by government and intergovernmental agencies around the world, and publish clear, plain-language summaries — alongside explainers on the science and history of the phenomenon.
We are independent and not affiliated with any government agency. We are not a warning service: for live warnings and local guidance, always follow your national meteorological agency.
Sourcing policy
- Every article lists the official documents it is based on, with direct links, in a “Sources” box at the end.
- Facts and figures come only from official agencies (national meteorological services, UN bodies, space and ocean agencies) or peer-reviewed research. We do not source claims from social media or unattributed reports.
- All text is written originally by our editorial team — we summarise and explain; we never republish source text wholesale. Quotes are attributed to the issuing agency.
- Numbers are labelled with their index and date (for example, weekly Niño 3.4 vs three-month ONI), because different agencies measure ENSO differently.
- When agencies disagree — as they legitimately do, since El Niño definitions differ — we say so and cite each position.
Updates and corrections
News articles carry both a published date and an updated date. Forecast figures are superseded as agencies issue new advisories — the current-status panel on the homepage names the advisory and date it reflects. If you spot an error, please contact us and we will correct the article and note the correction.