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Forecast for Buenos Aires on September 20th, 2025: What's the weather gonna be like?

Anticipated Temperature Ranges: This coming Saturday, September 20, is expected to sees temperatures fluctuate between 16 and 20 degrees Celsius according to the National Meteorological Service; check our site for more details.

Forecast for Buenos Aires on September 20th, 2025: What does the meteorological outlook reveal?
Forecast for Buenos Aires on September 20th, 2025: What does the meteorological outlook reveal?

Forecast for Buenos Aires on September 20th, 2025: What's the weather gonna be like?

Buenos Aires residents are advised to prepare for potential weather changes on September 20, as the city's weather forecast indicates isolated thunderstorms in the morning and a temperature of 16°C for the day, according to Wetter.com.

The sun will rise at 06:47 and set at 18:48, providing a daylight duration of around 12 hours. The temperature is expected to rise to 20 degrees in the afternoon, but will remain around 16 degrees for the rest of the day and evening.

The National Meteorological Service (SMN) recommends staying in closed buildings during the storms, and advises against driving on flooded or affected streets. People should also avoid riverbank areas and stay away from electrical appliances and corded telephones during the storms.

If traveling, it is important to stay inside vehicles during storms. In case of being affected by the storm, local emergency services should be contacted immediately.

The weather forecast also predicts winds from the east with estimated speeds between 13 and 22 km/h in the afternoon, and from the southwest at similar speeds in the evening. The humidity in Buenos Aires will be 94 percent.

The chance of rain in the evening will be between 70 and 100 percent, with a 10 to 40 percent chance of rain in the morning. Visibility in Buenos Aires will be fair.

It is also recommended that residents always have an emergency backpack ready, including a flashlight, radio, documents, and phone. By following these precautions, residents can ensure their safety during the potential storms in Buenos Aires.

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