Climate and Weather · Kalshi ·September 11, 2026 ·Edited by Samuel Jo

August Global Temperature Nears Critical 1.30 Threshold

Scientists are monitoring global average temperatures for August 2026, with particular attention on whether the Land Ocean-Temperature Index will register above 1.30. This specific threshold is a key indicator for climate trends, and its breach would underscore ongoing concerns about global warming. While official data from NOAA's National Centers for Environmental Information (NCEI) is still being analyzed, early indications suggest August was notably warm. The market, reflecting a strong consensus among observers, puts the probability of exceeding the 1.30 mark at 99%, a figure that has seen a +2 pts shift in the past 24 hours.

Background

The Land Ocean-Temperature Index, maintained by institutions like NASA's Goddard Institute for Space Studies (GISS), tracks the combined average temperature of the Earth's land and ocean surfaces relative to a baseline period. This index provides a critical measure of long-term climate change. The specific level of 1.30 above the historical average represents a significant warming trend, following a period where temperatures have consistently trended upwards. The prediction market resolves on September 15, 2026, just days after the official August data is typically released, setting a tight timeline for the final assessment.

The precedent

• July 2023 was the hottest month on record globally, according to NOAA and NASA.
• The global average temperature has increased by about 1.1 degrees Celsius (1.9 degrees Fahrenheit) since the late 19th century.

Context compiled by Crowdtells from the public record — verify before relying on it.

What to watch

The official release of the Land Ocean-Temperature Index for August 2026 by NOAA's NCEI is the immediate event to watch, expected in the coming days. This data will definitively determine whether the 1.30 threshold has been crossed. Beyond the August figures, scientists will continue to assess the role of phenomena like El Niño, which has recently strengthened, and the overarching impact of climate change on global temperature patterns.

AI-written briefing grounded in 5 sources and the live market, edited by Samuel Jo. Odds are crowd probabilities, not advice — how this works.