Sea Temperature in Buenos Aires in September

© Camila Delfini

Complete information on the sea temperature range in the Argentinean Sea in Buenos Aires in September. Historical daily data. Climate details for September. Tips on swimming conditions and beach relaxation in Buenos Aires. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

Buenos Aires Climate and Swimming Opportunities in September

Buenos Aires lies within the Buenos Aires Province in Argentina. The average daytime temperature in Buenos Aires in September is 15°C (59°F), while the nighttime average is 10°C (49°F). There are typically seven rainy days during the month, with a total precipitation of 72 mm (2.8 inches). The daylight duration in September in Buenos Aires is 12 hours, with an average of 6 hours of sunshine per day. The average wind speed in September is 18 km/h (11 mph), and the humidity level is around 72%.

The water temperature in Buenos Aires in September ranges from 13°C to 16°C (55°F to 61°F). At the beginning of the month, the average temperature is around 14°C (57°F), shifting to 15°C (59°F) by mid-September and reaching 16°C (61°F) in the last ten days. Overall, the average sea temperature in Buenos Aires for September is 15°C (59°F). Ideal conditions for a refreshing swim, though some may still find it a bit cool.

Frequently Asked Questions About Water Temperatures in September in Buenos Aires