A strong, rapidly intensifying El Niño event currently drives trader expectations for September 2026 global temperatures, with weekly Niño 3.4 anomalies reaching +2.6°C by late August and models projecting a very strong peak (over 90% chance of +2.0°C or greater) in October–December. This builds on background anthropogenic warming and follows 2024 as the record warmest year and 2025 among the top three, with El Niño’s lagged influence on atmospheric temperatures expected to elevate late-2026 monthly values. Market-implied odds favor second-hottest (57%) over first (36%) or third (25.5%) due to the event’s timing and strength relative to historical analogs, though internal variability and dataset differences introduce uncertainty in exact September ranking ahead of official NOAA and NASA releases.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-updateSeptember 2026 1st, 2nd, or 3rd hottest on record?
2nd hottest 57%
4th or lower 41%
1st hottest 36%
3rd hottest 26%
1st hottest
36%
2nd hottest
57%
3rd hottest
26%
4th or lower
41%
2nd hottest 57%
4th or lower 41%
1st hottest 36%
3rd hottest 26%
1st hottest
36%
2nd hottest
57%
3rd hottest
26%
4th or lower
41%
Note: If September 2026 is tied for first, second, or third hottest with another year, it will qualify for the bracket it ties with.
The primary resolution source for this market will be the figures found in the table titled "GLOBAL Land-Ocean Temperature Index in 0.01 degrees Celsius" under the column for the relevant month (https://data.giss.nasa.gov/gistemp/tabledata_v4/GLB.Ts+dSST.txt). If NASA's "Global Temperature Index" is rendered permanently unavailable, other information from NASA may be used.
If no information for September 2026 is provided by NASA by the last day of the following month, 11:59:59 PM ET, a consensus of credible sources will be used to resolve this market.
Binuksan ang Market: Aug 28, 2026, 11:14 AM ET
Resolver
0x69c47De9D...Note: If September 2026 is tied for first, second, or third hottest with another year, it will qualify for the bracket it ties with.
The primary resolution source for this market will be the figures found in the table titled "GLOBAL Land-Ocean Temperature Index in 0.01 degrees Celsius" under the column for the relevant month (https://data.giss.nasa.gov/gistemp/tabledata_v4/GLB.Ts+dSST.txt). If NASA's "Global Temperature Index" is rendered permanently unavailable, other information from NASA may be used.
If no information for September 2026 is provided by NASA by the last day of the following month, 11:59:59 PM ET, a consensus of credible sources will be used to resolve this market.
Resolver
0x69c47De9D...A strong, rapidly intensifying El Niño event currently drives trader expectations for September 2026 global temperatures, with weekly Niño 3.4 anomalies reaching +2.6°C by late August and models projecting a very strong peak (over 90% chance of +2.0°C or greater) in October–December. This builds on background anthropogenic warming and follows 2024 as the record warmest year and 2025 among the top three, with El Niño’s lagged influence on atmospheric temperatures expected to elevate late-2026 monthly values. Market-implied odds favor second-hottest (57%) over first (36%) or third (25.5%) due to the event’s timing and strength relative to historical analogs, though internal variability and dataset differences introduce uncertainty in exact September ranking ahead of official NOAA and NASA releases.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-update

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