Vitamin D

The sun, month by month

Sunrise and sunset in Lisbon in August

On August 1 in Lisbon the sun rises at 06:38 and sets at 20:47; on day 31 it rises at 07:06 and sets at 20:07. Over the month the day gets 68 minutes shorter.

Sunrise06:51
Sunset20:31
Golden hour19:54–20:31
Day length13 h 40 min

Day by day

All times are local to Lisbon. Dawn and dusk mark civil twilight.

DayDawnSunriseSunsetDuskDay length
106:0806:3820:4721:1714 h 09 min
206:0906:3920:4621:1614 h 07 min
306:1006:4020:4521:1514 h 05 min
406:1106:4120:4421:1314 h 03 min
506:1206:4220:4321:1214 h 01 min
606:1306:4220:4221:1113 h 59 min
706:1406:4320:4121:1013 h 57 min
806:1506:4420:3921:0813 h 55 min
906:1606:4520:3821:0713 h 53 min
1006:1706:4620:3721:0613 h 51 min
1106:1806:4720:3621:0413 h 49 min
1206:1906:4820:3521:0313 h 46 min
1306:2106:4920:3321:0213 h 44 min
1406:2206:5020:3221:0013 h 42 min
1506:2306:5120:3120:5913 h 40 min
1606:2406:5220:2920:5713 h 37 min
1706:2506:5320:2820:5613 h 35 min
1806:2606:5420:2620:5513 h 33 min
1906:2706:5520:2520:5313 h 30 min
2006:2806:5620:2420:5213 h 28 min
2106:2906:5720:2220:5013 h 26 min
2206:3006:5720:2120:4913 h 23 min
2306:3106:5820:1920:4713 h 21 min
2406:3206:5920:1820:4513 h 18 min
2506:3307:0020:1620:4413 h 16 min
2606:3407:0120:1520:4213 h 14 min
2706:3507:0220:1320:4113 h 11 min
2806:3607:0320:1220:3913 h 09 min
2906:3707:0420:1020:3713 h 06 min
3006:3807:0520:0920:3613 h 04 min
3106:3907:0620:0720:3413 h 01 min

Approximate astronomical values: they can shift a minute or two from year to year.

What about vitamin D in August?

In August, the typical synthesis window in Lisbon runs from 10:00 to 18:00: with medium skin and a t-shirt, ~6 min at the best moment is enough.

See the Lisbon vitamin D guide