Sun times in Rio de Janeiro on 24 September 2026
| Sunrise | 05:42 | rises toward E (91°) |
|---|---|---|
| Solar noon | 11:46 | sun 67.5° above the horizon |
| Sunset | 17:50 | sets toward W (269°) |
| Day length | 12 h 09 min | |
| Civil dawn | 05:19 | first usable light |
| Civil dusk | 18:13 | last usable light |
| Golden hour, morning | 05:42–06:11 | warm low light |
| Golden hour, evening | 17:21–17:50 | warm low light |
| Shadow at noon | 0.41 m | per metre of height |
Times are computed for -22.9068°, -43.1729° 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 Rio de Janeiro.
The sun through the year in Rio de Janeiro
| Month | Sunrise | Sunset | Day length | Noon altitude |
|---|---|---|---|---|
| January | 05:22 | 18:45 | 13 h 23 min | 88.2° |
| February | 05:43 | 18:34 | 12 h 51 min | 79.8° |
| March | 05:56 | 18:10 | 12 h 15 min | 69.2° |
| April | 06:07 | 17:41 | 11 h 34 min | 57.3° |
| May | 06:20 | 17:21 | 11 h 01 min | 48.2° |
| June | 06:32 | 17:17 | 10 h 44 min | 43.8° |
| July | 06:34 | 17:25 | 10 h 51 min | 45.6° |
| August | 06:19 | 17:38 | 11 h 19 min | 53.0° |
| September | 05:51 | 17:48 | 11 h 57 min | 64.0° |
| October | 05:21 | 17:58 | 12 h 36 min | 75.6° |
| November | 05:02 | 18:15 | 13 h 13 min | 85.6° |
| December | 05:03 | 18:35 | 13 h 32 min | 89.6° |
At the June solstice the midday sun reaches 43.7° above the horizon in Rio de Janeiro and the day lasts 10 h 44 min. At the December solstice the sun climbs only to 89.4° and the day shrinks to 13 h 32 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 Rio de Janeiro
Solar panels
At this latitude a fixed array facing the equator collects the most over a year at a tilt of about 21°. Use the solar panel angle calculator with the coordinates -22.9068°, -43.1729° 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 Rio de Janeiro sits 89.4° above the horizon, so every obstacle casts a shadow 0.0 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 05:42–06:11 in the morning and 17:21–17:50 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.