Sunrise & Sunset Times in Buenos Aires — December 2027

Sunrise & Sunset in Buenos Aires During December

December contains the summer solstice around the 21st, giving Buenos Aires its longest day and shortest night of the year. Near the solstice, day length plateaus — barely changing for about two weeks. The sun reaches its highest noon altitude, delivering maximum direct sunlight and the shortest shadows of the year. In high southern latitudes, twilight may linger all night. It is the brightest, most daylight-rich time of year.

Golden Hour & Twilight in December

During December, golden hour in Buenos Aires lasts approximately 52 minutes each morning and evening. The low sun angle during these periods produces warm, directional light prized by photographers and filmmakers. Civil twilight — the period when the sun is just below the horizon — adds extra usable light before sunrise and after sunset, extending the practical daylight window beyond the times shown in the table above.

Through December, days in Buenos Aires are lengthening by roughly 0.3 minutes per day, adding up to about 0h 9m over the course of the month.

December 2027 Summary — Buenos Aires

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