Sunrise and Sunset times in Viana do Castelo, Portugal 
Today:
 Sunrise: 06:36:40
|
 Sunset: 18:48:22
|
Day Length: 12h 11m 42s
Time zone: Europe/Lisbon, UTC 0 h.
Latitude: 41.6962, Longitude: -8.8441
Viana do Castelo
Viana do Castelo, Portugal 
15 555 people
| Date | Sunrise | Solar Noon | Sunset | Day length |
|---|---|---|---|---|
| 2026-Mar-01, Sunday | 07:09:51 | 12:47:40 | 18:25:30 | 11h 15m 39s |
| 2026-Mar-02, Monday | 07:08:16 | 12:47:28 | 18:26:41 | 11h 18m 25s |
| 2026-Mar-03, Tuesday | 07:06:40 | 12:47:16 | 18:27:52 | 11h 21m 12s |
| 2026-Mar-04, Wednesday | 07:05:04 | 12:47:03 | 18:29:02 | 11h 23m 58s |
| 2026-Mar-05, Thursday | 07:03:27 | 12:46:49 | 18:30:12 | 11h 26m 45s |
| 2026-Mar-06, Friday | 07:01:49 | 12:46:36 | 18:31:22 | 11h 29m 33s |
| 2026-Mar-07, Saturday | 07:00:11 | 12:46:21 | 18:32:32 | 11h 32m 21s |
| 2026-Mar-08, Sunday | 06:58:33 | 12:46:07 | 18:33:41 | 11h 35m 8s |
| 2026-Mar-09, Monday | 06:56:54 | 12:45:52 | 18:34:50 | 11h 37m 56s |
| 2026-Mar-10, Tuesday | 06:55:14 | 12:45:37 | 18:35:59 | 11h 40m 45s |
| 2026-Mar-11, Wednesday | 06:53:34 | 12:45:21 | 18:37:08 | 11h 43m 34s |
| 2026-Mar-12, Thursday | 06:51:54 | 12:45:05 | 18:38:16 | 11h 46m 22s |
| 2026-Mar-13, Friday | 06:50:14 | 12:44:49 | 18:39:24 | 11h 49m 10s |
| 2026-Mar-14, Saturday | 06:48:33 | 12:44:32 | 18:40:32 | 11h 51m 59s |
| 2026-Mar-15, Sunday | 06:46:52 | 12:44:16 | 18:41:40 | 11h 54m 48s |
| 2026-Mar-16, Monday | 06:45:10 | 12:43:59 | 18:42:47 | 11h 57m 37s |
| 2026-Mar-17, Tuesday | 06:43:28 | 12:43:42 | 18:43:55 | 12h 0m 27s |
| 2026-Mar-18, Wednesday | 06:41:47 | 12:43:24 | 18:45:02 | 12h 3m 15s |
| 2026-Mar-19, Thursday | 06:40:05 | 12:43:07 | 18:46:09 | 12h 6m 4s |
| 2026-Mar-20, Friday | 06:38:22 | 12:42:49 | 18:47:16 | 12h 8m 54s |
| 2026-Mar-21, Saturday | 06:36:40 | 12:42:31 | 18:48:22 | 12h 11m 42s |
| 2026-Mar-22, Sunday | 06:34:58 | 12:42:13 | 18:49:29 | 12h 14m 31s |
| 2026-Mar-23, Monday | 06:33:15 | 12:41:55 | 18:50:35 | 12h 17m 20s |
| 2026-Mar-24, Tuesday | 06:31:33 | 12:41:37 | 18:51:42 | 12h 20m 9s |
| 2026-Mar-25, Wednesday | 06:29:51 | 12:41:19 | 18:52:48 | 12h 22m 57s |
| 2026-Mar-26, Thursday | 06:28:08 | 12:41:01 | 18:53:54 | 12h 25m 46s |
| 2026-Mar-27, Friday | 06:26:26 | 12:40:43 | 18:55:00 | 12h 28m 34s |
| 2026-Mar-28, Saturday | 06:24:44 | 12:40:25 | 18:56:06 | 12h 31m 22s |
| 2026-Mar-29, Sunday | 07:23:02 | 13:40:07 | 19:57:12 | 12h 34m 10s |
| 2026-Mar-30, Monday | 07:21:20 | 13:39:49 | 19:58:18 | 12h 36m 58s |
| 2026-Mar-31, Tuesday | 07:19:39 | 13:39:31 | 19:59:23 | 12h 39m 44s |
Day length in Viana do Castelo during the year on the chart:
Viana do Castelo on Portugal map:
Locations in the same time zone Europe/Lisbon
Lisbon (Lisboa), Porto (Porto), Braga (Braga), Setubal (Setúbal), Coimbra (Coimbra), Portimao (Faro), Evora (Évora), Aveiro (Aveiro), Leiria (Leiria), Faro (Faro), Beja (Beja), Braganca (Bragança), Castelo Branco (Castelo Branco), Guarda (Guarda), Santarem (Santarém), Viseu (Viseu), Covilha (Castelo Branco), Vila Real (Vila Real), Portalegre (Portalegre)
Largest populated areas in Portugal
Lisbon (Lisboa), Porto (Porto), Braga (Braga), Funchal (Madeira), Setubal (Setúbal), Coimbra (Coimbra), Ponta Delgada (Azores), Portimao (Faro), Evora (Évora), Aveiro (Aveiro), Leiria (Leiria), Faro (Faro), Beja (Beja), Braganca (Bragança), Castelo Branco (Castelo Branco), Guarda (Guarda), Santarem (Santarém), Viseu (Viseu), Covilha (Castelo Branco), Vila Real (Vila Real), Portalegre (Portalegre), Angra do Heroismo (Azores), Horta (Azores)
Countries closest to Portugal
*Calculation of distances from capital to capital
Daylight Hours FAQ: 10 Most Googled Questions Answered
Daylight hours refer to the period between sunrise and sunset. This duration changes throughout the year based on season and geographic location.
Earth's 23.5° axial tilt causes uneven sunlight distribution. Your hemisphere receives less direct sunlight in winter (shorter days) and more in summer (longer days).
Northern Hemisphere: June 20-22 (summer solstice).
Southern Hemisphere: December 21-23.
Near polar circles, the sun doesn't set for 24 hours.
Northern Hemisphere: December 21-22 (winter solstice).
Southern Hemisphere: June 20-21.
The closer to poles, the more extreme variations:
- Equator: ~12-hour days year-round
- Polar regions: Midnight sun/polar nights occur
Miami's lower latitude means:
- Winter days are longer than NY's
- Summer days are slightly shorter
During equinoxes:
- Spring: March 20-21
- Fall: September 22-23
Most rapid change near equinoxes: 2-4 minutes daily.
Slowest change near solstices: <1 minute daily.
Reliable tools:
- Timeanddate.com
- SunCalc.org
- Photographer's Ephemeris app
Yes. Reduced winter sunlight may cause:
- Seasonal Affective Disorder (SAD)
- Vitamin D deficiency
Solution: Light therapy lamps & midday walks