NOAA November ENSO update: historic El Niño odds fall as Pacific warming strengthens
4 min read · Public
NOAA’s 12 November update lowers historic-event odds to around 60% for October–December and November–January, despite stronger observed warming. What changed, what stayed the same and how cocoa traders can interpret it.
Noaa November ENSO update: the cocoa research takeaway
Checked against NOAA’s discussion dated 12 November 2026 at 14:42 UK on 12 November. This is the confirmed monthly release, following our pre-release preview ↗.
The key distinction is between observed warming and forecast probabilities. The Pacific warmed further, but the outlook became less confident about reaching the historic seasonal threshold. For cocoa, neither observation establishes a crop loss or an inevitable price direction.
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The table compares the 8 October and 12 November discussions on matching periods and thresholds.
Measure
8 October report
12 November report
Alert status
El Niño Advisory
El Niño Advisory
Historic threshold, October–December 2026
83%
Approximately 60%
Historic threshold, November 2026–January 2027
70%
Approximately 60%
Strong-to-very-strong through January–March 2027
Greater than 83%
Greater than 79%
Reported Niño-3.4 anomaly
+2.1°C
+2.5°C
Reported Niño-3 anomaly
+3.0°C
+3.6°C
Reported Niño-1+2 anomaly
+3.9°C
+4.4°C
The historic threshold is a three-month RONI of at least +2.5°C. October also gave 54% for September–November; November’s discussion does not repeat that window, so no revision is calculated for it.
NOAA expects further strengthening before weakening begins in early 2027. The next monthly discussion is scheduled for 10 December 2026.
How large is the forecast change?
Using the rounded “approximately 60%” figures in November’s text, the October–December historic-event probability is roughly 23 percentage points lower; November–January is roughly 10 points lower. These are approximate changes, not precisely measured revisions to a decimal place.
The strong-to-very-strong figures are expressed as lower bounds: “greater than 83%” and “greater than 79%.” They should not be turned into a claim that an exact probability fell by exactly four points.
An individual Niño-region observation and a three-month RONI forecast are different measurements. The +2.5°C Niño-3.4 reading should not be described as proof that the historic seasonal threshold has already been met.
What this could mean for cocoa
Our interpretation is that this release offers less support for the most extreme forecast scenario than October’s report did. That could matter if traders had been paying a premium for a near-record event. But lower odds of the extreme outcome do not remove the weather risk.
A useful cocoa assessment needs a second step: evidence from producing regions. Compare the climate outlook with dated rainfall and soil-moisture observations, local forecasts, pod development and crop surveys. Then assess whether those observations change expected available supply.
Avoid jumping directly from a Pacific index to a percentage reduction in Côte d’Ivoire or Ghana production. The location, timing and duration of actual weather conditions—and the crop’s stage of development—are essential parts of that argument.
Three ways to read the next evidence
If the lower historic-event odds are followed by improving origin weather and stable crop surveys, the case for a large weather-risk premium would weaken.
If origin weather deteriorates and credible crop surveys worsen, physical evidence could sustain supply concerns even with a lower probability of an exceptionally strong Pacific event.
If the climate probabilities change but local crop evidence remains mixed, the disciplined conclusion is continued uncertainty. Arrivals, inventories, demand and positioning should remain in the assessment.
These are research scenarios, not forecasts of the next price move.
What about today’s price reaction?
This first-release article does not claim a verified post-announcement cocoa price reaction. No timestamped intraday, named-contract price comparison is included here.
A daily move alone would mix trading before and after the announcement, plus other news and positioning. It would not show how much NOAA caused. Any subsequent price assessment should identify the contract, quote time, comparison point and competing catalysts.
Start the day with the evidence
Cocoa Market Hub’s free Morning Brief is scheduled Monday–Friday at 7am UK, bringing market context and research priorities together.
The current NOAA URL rolls forward with later releases. Figures above describe the 12 November publication. Cocoa implications and scenarios are our interpretation, separate from NOAA’s climate forecast.
Additional reading context
Educational explanation added to help interpret this article. It is not a new market update or a revision to the original dated figures.
Testing the market interpretation
Treat the article’s explanation as a hypothesis to test against dated observations. Separate reported facts, comparisons and possible implications. Before accepting a conclusion, identify the contract or physical market involved, check the reporting period and ask whether a different explanation could fit the same evidence.
A useful follow-up records what would strengthen or weaken the interpretation. Seek confirmation in an independent type of evidence rather than several stories repeating the same underlying report. Keep subsequent revisions visible so that an older article remains understandable as a record of the information available at publication.
Published research and personal commentary, not personalised investment advice. Trade ideas can fail; evaluate the assumptions and dated follow-ups. The original published post is preserved.