# NOAA: September 2026 was second-warmest in the record since 1850

> NOAA’s global summary put September surface temperature 1.33°C above the 20th-century average, second-highest in the 1850–2026 record, while global ocean-surface anomaly set a new monthly record.

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- Section: Environment
- Published: 2026-10-13T02:11:43+00:00
- Updated: 2026-10-13T02:11:43+00:00
- Source review period: 2026-09
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NOAA’s National Centers for Environmental Information reported that September 2026 was the second-warmest September in its 1850–2026 global record, with global surface temperature 1.33°C above the 20th-century average. Global ocean-surface temperature departure averaged 1.10°C above average, a record for any month and the fourth consecutive month with a record-warm ocean departure.

The report also counted 19 tropical cyclones worldwide during September, while sea-ice extent was below average in both polar regions. It attributes much of the central and eastern tropical Pacific warmth to persistent El Niño conditions. These are monthly climate indicators and reported anomalies relative to historical baselines; they do not by themselves attribute an individual storm or flood to climate change.

## Data

### Global cyclone count for September 2026

The count is NOAA’s global total of tropical cyclones for September 2026; it is not a country-specific event or attribution.

Methodology: Global September summary published by the National Centers for Environmental Information on 9 October 2026. Count follows NOAA text; temperature anomalies are not included in the table.

| Global tropical cyclone count | Cyclones | Reference period and geography |
|---|---|---|
| Tropical cyclones formed globally | 19 | September 2026 global monthly count in NOAA’s climate summary. |

Sources: <https://www.ncei.noaa.gov/news/global-climate-202609> · Download data: [JSON](https://newsverum.com/api/v1/articles/noaa-september-2026-global-temperature-ocean-record/data/source-measurements?lang=en&format=json) · [CSV](https://newsverum.com/api/v1/articles/noaa-september-2026-global-temperature-ocean-record/data/source-measurements?lang=en&format=csv)

## Sources

- [NOAA National Centers for Environmental Information](<https://www.ncei.noaa.gov/news/global-climate-202609>) (Source checked: 2026-10-13; Published: 2026-10-09)

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