July 21, 2026 · Castelo Branco, Portugal
Castelo Branco has 14h 35m of daylight today. Sunrise is at 06:19 and sunset is at 20:55. All times are calculated astronomically for Castelo Branco's exact coordinates.
Castelo Branco lies at 40°N. At this latitude, day length varies moderately — from around 10 hours in midwinter to 14–15 hours in midsummer.
Day length changes fastest near the spring and autumn equinoxes and slowest near the longest day and shortest day of the year. See the year chart to visualise how daylight hours shift month by month for Castelo Branco, or see daylight hours for every day of the year.
The longest day in Castelo Branco is around 14h 60m (around June 21). The shortest is around 9h 21m (around December 21). Days are currently getting shorter — losing about 2 minutes per day.
| Month | Day length | Sunrise | Sunset |
|---|---|---|---|
| January | 9h 38m | 07:51 | 17:28 |
| February | 10h 40m | 07:25 | 18:05 |
| March | 11h 51m | 06:44 | 18:36 |
| April | 13h 12m | 06:55 | 20:07 |
| May | 14h 20m | 06:17 | 20:37 |
| June | 14h 58m | 06:02 | 21:00 |
| July | 14h 45m | 06:14 | 20:59 |
| August | 13h 48m | 06:42 | 20:30 |
| September | 12h 32m | 07:11 | 19:42 |
| October | 11h 14m | 07:39 | 18:54 |
| November | 10h 2m | 07:14 | 17:16 |
| December | 9h 23m | 07:44 | 17:07 |