July 20, 2026 · Viamão, Brazil
Sunset in Viamão today is at 17:45. Day length is 10h 27m. See below for sunrise, solar noon, dawn and dusk — all times calculated astronomically for Viamão's coordinates and updated daily.
Viamão lies at 30°S. At this latitude, day length varies moderately — from around 10 hours in midwinter to 14–15 hours in midsummer.
Sunset shifts later through spring and earlier through autumn — changing fastest near the equinoxes and slowest near the summer and winter solstices. See the year chart to visualise how sunset times shift month by month for Viamão.
The longest day in Viamão is around 14h 5m (around December 21). The shortest is around 10h 12m (around June 21). Days are currently getting longer — gaining about 1 minute per day.
| Month | Sunset | Sunrise | Day length |
|---|---|---|---|
| January | 19:30 | 05:37 | 13h 53m |
| February | 19:14 | 06:04 | 13h 10m |
| March | 18:44 | 06:24 | 12h 19m |
| April | 18:07 | 06:43 | 11h 24m |
| May | 17:40 | 07:02 | 10h 38m |
| June | 17:32 | 07:19 | 10h 13m |
| July | 17:42 | 07:20 | 10h 22m |
| August | 18:00 | 07:00 | 10h 60m |
| September | 18:17 | 06:25 | 11h 52m |
| October | 18:34 | 05:48 | 12h 46m |
| November | 18:58 | 05:21 | 13h 36m |
| December | 19:21 | 05:18 | 14h 4m |