Sun times in Buenos Aires on 24 September 2026
| Sunrise | 06:42 | rises toward E (91°) |
|---|---|---|
| Solar noon | 12:47 | sun 55.9° above the horizon |
| Sunset | 18:52 | sets toward W (269°) |
| Day length | 12 h 11 min | |
| Civil dawn | 06:16 | first usable light |
| Civil dusk | 19:17 | last usable light |
| Golden hour, morning | 06:42–07:15 | warm low light |
| Golden hour, evening | 18:19–18:52 | warm low light |
| Shadow at noon | 0.68 m | per metre of height |
Times are computed for -34.6037°, -58.3816° and refreshed every day. For any other date, an exact azimuth or a shadow drawn on the map, open the interactive sun position map for Buenos Aires.
The sun through the year in Buenos Aires
| Month | Sunrise | Sunset | Day length | Noon altitude |
|---|---|---|---|---|
| January | 05:58 | 20:10 | 14 h 13 min | 76.5° |
| February | 06:29 | 19:49 | 13 h 20 min | 68.1° |
| March | 06:54 | 19:14 | 12 h 20 min | 57.5° |
| April | 07:18 | 18:32 | 11 h 14 min | 45.6° |
| May | 07:41 | 18:01 | 10 h 20 min | 36.5° |
| June | 08:00 | 17:51 | 9 h 51 min | 32.1° |
| July | 07:59 | 18:02 | 10 h 03 min | 33.9° |
| August | 07:35 | 18:24 | 10 h 49 min | 41.3° |
| September | 06:55 | 18:46 | 11 h 51 min | 52.4° |
| October | 06:13 | 19:08 | 12 h 56 min | 63.9° |
| November | 05:42 | 19:37 | 13 h 55 min | 73.9° |
| December | 05:36 | 20:04 | 14 h 27 min | 78.7° |
At the June solstice the midday sun reaches 32.0° above the horizon in Buenos Aires and the day lasts 9 h 50 min. At the December solstice the sun climbs only to 78.8° and the day shrinks to 14 h 28 min. That difference is what decides whether a garden, a window or a solar array sees the sun in winter.
Planning around the sun in Buenos Aires
Solar panels
At this latitude a fixed array facing the equator collects the most over a year at a tilt of about 29°. Use the solar panel angle calculator with the coordinates -34.6037°, -58.3816° for the exact optimum, the seasonal optima and the loss from an east or west facing roof.
Buying a flat or a plot
In December the noon sun in Buenos Aires sits 78.8° above the horizon, so every obstacle casts a shadow 0.2 times its own height at midday. Check what stands to the south before you commit: place the building on the map and read the shaded hours for 21 December.
Photography
Golden hour runs 06:42–07:15 in the morning and 18:19–18:52 in the evening today, and the sun sets toward sets toward W (269°). The golden hour calculator gives the same windows for any date, and the map's alignment finder shows the days when the setting sun lines up with a street.