# Regional weather forecasts for September 2026

> Live situation record from CLSTR: https://clstr.news/situations/20260907-regional-weather-forecasts-for-september-2026
> Updated: 2026-09-07T03:59:20.000Z. Sources: 36. Developments: 2.

Regional weather forecasts for September 2026 show diverse conditions across various locations. In Andratx, conditions are expected to be mostly sunny with temperatures between 24 and 26 degrees Celsius and light winds. Arona will see mostly clear skies and temperatures peaking at 30 degrees Celsius, though there is a 50% chance of minimal rainfall in the afternoon. Other regions report higher temperatures, with Sant Llorenç des Cardassar and Jerez de los Caballeros both expected to reach 36 degrees Celsius under clear skies. Conversely, Breña Baja and Sada are forecast to experience cloudier, more humid conditions, with Sada facing a 75% chance of light rain. 

Newer reports indicate significant meteorological shifts. In Bilbao, an Atlantic front is predicted to bring cooler, more humid conditions and intermittent rainfall, causing a notable drop in temperatures starting Monday. Zaragoza is anticipating high temperatures that may reach 40 degrees Celsius, despite potential afternoon cloudiness in the Iberian system. In Sada, skies are expected to remain mostly overcast with high humidity and light morning rainfall. Meanwhile, Buenos Aires is experiencing clear skies and cooler temperatures, with maximums of 14 degrees Celsius and minimums around 5 degrees Celsius. 

Additional updates show Añatuya transitioning from cold to sunny weather, with temperatures rising from a low of 5.9 degrees Celsius to a maximum of 19.6 degrees Celsius. In Spain, Jaraíz de la Vera is facing high heat reaching 37 degrees Celsius, while Gandia expects peaks of approximately 36 degrees Celsius accompanied by sea breezes. Narón is reporting more overcast conditions with temperatures between 19 and 25 degrees Celsius and high humidity. In the Valencian Community, extreme heat is impacting coastal areas of Valencia and Alicante, where temperatures are expected to reach or exceed 40 degrees Celsius.

## Claims

- The meteorological impact of the Super Niño is expected to last until at least February 2027. (corroborated by 2 sources)
- Hurricane Lowell has reached Category 5 status. (single source)
- Hurricane Karina is a Category 4 storm located east of Hawaii. (single source)
- Storm Marie is intensifying southwest of the Baja California peninsula. (single source)
- The simultaneous presence of three powerful tropical systems in the Pacific is an atypical meteorological event. (single source)
- The Super Niño phenomenon has raised sea surface temperatures by up to 2.6 °C. (single source)

## Timeline

### 2026-09-07: Pacific Ocean faces Super Niño and triple tropical storm threat

The WMO warns that the Super Niño phenomenon will persist until 2027, while three powerful tropical systems, including Category 5 Hurricane Lowell, simultaneously traverse the Pacific Ocean.

31 sources. https://clstr.news/cluster/culleredo-weather-forecast-for-september-7-2026

### 2026-09-06: Valencian Community faces extreme heat with temperatures exceeding 40°C

Extreme heat is affecting the Valencian Community and Alicante, with temperatures potentially exceeding 40°C before a predicted weather shift brings storms and cooler air mid-week.

13 sources. https://clstr.news/cluster/weather-forecasts-for-andratx-and-arona

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Cite as: Regional weather forecasts for September 2026. CLSTR, https://clstr.news/situations/20260907-regional-weather-forecasts-for-september-2026
