Climate and Weather Kalshi August 19, 2026
El Niño forecast reaches historic strength ahead of winter
What will the peak RONI value be during the 2026-27 El Niño season?
Kalshi prices this At least 3.0°C at 51%. The reporting broadly agrees.
The 2026-27 El Niño season is shaping up to be one of the strongest on record, with forecasters warning of severe weather conditions. The situation is dire, with millions of people potentially affected by the extreme weather. Traders put the peak RONI value at roughly a coin-flip, with a notable move upwards in the past 24 hours.
Background
The El Niño phenomenon is a complex weather pattern that occurs when the surface temperature of the Pacific Ocean warms up. It can have significant impacts on global weather patterns, leading to droughts, floods, and other extreme weather events. The 2026-27 season is expected to be particularly severe, with forecasters warning of historic strength. The situation is being closely monitored by experts, who are working to predict the severity of the weather conditions.
The precedent
- No El Niño season has reached historic strength since 1997.
Context compiled by Crowdtells from the public record — verify before relying on it.
What to watch
The next few weeks will be crucial in determining the severity of the El Niño season. Forecasters will be closely monitoring the situation, and experts warn that the situation could deteriorate rapidly.
The numbers behind this
Kalshi prices this At least 3.0°C at 51%.
24h +12.0 pts
$13.6K traded · $2.5K in the last day · $8.1K open interest
Resolves on: If the peak RONI value during the 2026-27 El Niño season is at least 3.0°C, then the market resolves to Yes.
Pricing Kalshi 51%
Sources
Frequently asked questions
What will the peak RONI value be during the 2026-27 El Niño season?
Kalshi prices this At least 3.0°C at 51%. The reporting broadly agrees.
When does this market resolve?
This market resolves on: If the peak RONI value during the 2026-27 El Niño season is at least 3.0°C, then the market resolves to Yes.
How are these odds set?
Prediction-market odds are prices set by people trading real money on the outcome, so the price reads as the crowd’s implied probability — not a guarantee or financial advice.
AI-written briefing grounded in 1 source and the live market, edited by Samuel Jo. Odds are crowd probabilities, not advice — how this works.