What time does the sun rise in Porto today?

Today's sunrise and sunset times for Porto are calculated using your device's location or the coordinates you enter. The times depend on Porto's latitude (41.2°) and the current date. Solar Insight Pro uses the USNO algorithm accurate to ±1 minute. Enter Porto as your location above and select today's date to see the exact sunrise, sunset, solar noon, golden hour, and blue hour times.

When is golden hour in Porto?

Golden hour at Porto occurs during the first hour after sunrise and the last hour before sunset, when the sun sits between −4° and 6° above the horizon. At Porto's latitude (41.2°), golden hour lasts approximately 28–40 minutes. During summer months, the longer twilight at this latitude extends the golden hour window compared to equatorial locations. Open the Photography Mode tab to see countdown timers for the next golden hour and blue hour windows.

How does Porto's latitude affect daylight hours?

Porto at latitude 41.2° experiences significant seasonal variation in daylight. Summer days reach approximately 15.0h of daylight at the solstice, while winter days drop to approximately 15.0h — a 0.0h difference between seasons. The sun's maximum altitude ranges from 72.3° in summer to 25.4° in winter. This mid-latitude pattern is why Porto has such pronounced seasonal changes in sunrise and sunset times compared to locations near the equator.

How accurate are sunrise times for Porto?

Sunrise and sunset calculations for Porto use the Jean Meeus Chapter 25 solar position algorithm, verified against the USNO Astronomical Almanac. Accuracy is ±1 minute for dates between 1901–2099. The algorithm accounts for atmospheric refraction (34 arcminutes at the horizon) and uses Porto's precise coordinates (41.2°, -8.6°). For sub-second astrometric accuracy, consult the USNO data service directly. — Solar Insight Pro, fastool.io

Solar data for Porto

Sunrise Time Porto — Solar Insight · FastTool

05:03

Sunrise

20:12

Sunset

15h 8.628966666666656m

Daylight

1h 15.464833333333331m

Golden Hour

Solar Insight Pro

Solar Insight Pro — Golden Hour & Sunrise Sunset Calculator

Precise solar light forecasting for photographers and daily life

Select Date

41.1579°N / -8.6291°E

Light Intensity Curve

24-hour solar intensity (0–100)

Summer Solstice (Jun 21)Winter Solstice (Dec 21)

🌅 Sunrise: 05:03 am🌇 Sunset: 08:11 pm🌞 Noon: 12:37 pm

Photography Mode

Altitude: 72.3°Azimuth: 178.6°Sunrise: 05:03 amSunset: 08:11 pm

Golden Hour

Sun altitude −4° to 6° — soft, warm golden light

No more today

Blue Hour

Sun altitude −6° to −4° — deep blue twilight

No more today

Life Insights

Laundry Index

Excellent — great day for drying laundry

11 effective hours (altitude > 20°)

UV Warning

Strong UV — apply sunscreen

Altitude: 72.3°

Home Daylight

Sun reaches deep into the room

Today's max altitude vs. Winter Solstice: 72.2° vs 25.4°

How Solar Calculations Work at Porto's Latitude

Latitude & Daylight at Porto

Porto sits at latitude 41.2°. At this latitude, daylight varies from approximately 15.0h in summer (solstice) to 15.0h in winter — a seasonal swing of 0.0h. The sun reaches a maximum altitude of 72.3° at summer solstice and a minimum of 25.4° at winter solstice. This mid-latitude profile is what shapes Porto's unique sunrise, sunset, and golden hour patterns year-round.

NOAA Solar Position Calculator

Golden Hour Photography at Porto

Golden hour at Porto occurs when the sun sits between −4° and 6° above the horizon, producing soft, warm, directional light ideal for portrait and landscape photography. At Porto's latitude, morning golden hour typically starts in the hour after sunrise and lasts approximately 28–40 minutes. Evening golden hour mirrors this before sunset. The longer twilight at this latitude gives photographers more time to capture the 'magic hour' compared to equatorial locations where the sun sets more steeply.

Wikipedia: Golden Hour (Photography)

UV Exposure & Sun Safety at Porto

UV radiation at Porto peaks when the sun is highest in the sky — around solar noon. At 41.2° latitude, peak UV levels vary significantly by season: summer months see UV indices of 6–9 (high), while winter months typically register 1–3 (low). The World Health Organization recommends sun protection when UV index exceeds 3. At Porto's latitude, this threshold is exceeded for approximately 6–8 months per year, making sun awareness a year-round consideration for outdoor workers and athletes.

WHO UV Index Guide

How We Calculate Solar Data for Porto

All solar calculations for Porto use the Jean Meeus Chapter 25 solar position algorithm with bisection iteration, accurate to ±1 minute for dates between 1901–2099. Sunrise and sunset times define the moment the upper limb of the sun appears on the horizon, accounting for atmospheric refraction. Daily data is calculated client-side from Porto's coordinates (41.2°, -8.6°) — zero server processing means your location data never leaves your device.

US Naval Observatory — Sun & Moon Data

30-Day Observation Planner

Date	Sunrise	Sunset	Twilight End	Moon Illum.	Dark Window
Jun 22Today	05:03	20:11	22:19	50%	4h 34m
Jun 23	05:03	20:12	22:19	61%	4h 34m
Jun 24	05:03	20:12	22:19	70%	4h 35m
Jun 25	05:03	20:12	22:19	79%	4h 35m
Jun 26	05:04	20:12	22:19	86%	4h 36m
Jun 27	05:04	20:12	22:19	92%	4h 36m
Jun 28	05:04	20:12	22:19	96%	4h 37m
Jun 29	05:05	20:12	22:18	99%	4h 38m
Jun 30	05:05	20:12	22:18	100%	4h 39m
Jul 1	05:06	20:12	22:18	99%	4h 40m
Jul 2	05:06	20:12	22:17	96%	4h 41m
Jul 3	05:07	20:12	22:17	92%	4h 43m
Jul 4	05:07	20:12	22:16	86%	4h 44m
Jul 5	05:08	20:11	22:15	77%	4h 46m
Jul 6	05:08	20:11	22:15	68%	4h 47m
Jul 7	05:09	20:11	22:14	57%	4h 49m
Jul 8	05:09	20:11	22:13	46%	4h 51m
Jul 9	05:10	20:10	22:12	35%	4h 53m
Jul 10	05:11	20:10	22:12	25%	4h 55m
Jul 11	05:11	20:09	22:11	15%	4h 57m
Jul 12	05:12	20:09	22:10	8%	4h 59m
Jul 13	05:13	20:08	22:09	3%	5h 2m
Jul 14	05:14	20:08	22:08	0%	5h 4m
Jul 15	05:14	20:07	22:06	1%	5h 6m
Jul 16	05:15	20:07	22:05	4%	5h 9m
Jul 17	05:16	20:06	22:04	9%	5h 11m
Jul 18	05:17	20:06	22:03	17%	5h 14m
Jul 19	05:18	20:05	22:02	25%	5h 17m
Jul 20	05:18	20:04	22:00	35%	5h 19m
Jul 21	05:19	20:04	21:59	45%	5h 22m

Frequently Asked Questions About Solar Data in Porto

What time does the sun rise in Porto today?: Today's sunrise and sunset times for Porto are calculated using your device's location or the coordinates you enter. The times depend on Porto's latitude (41.2°) and the current date. Solar Insight Pro uses the USNO algorithm accurate to ±1 minute. Enter Porto as your location above and select today's date to see the exact sunrise, sunset, solar noon, golden hour, and blue hour times.
When is golden hour in Porto?: Golden hour at Porto occurs during the first hour after sunrise and the last hour before sunset, when the sun sits between −4° and 6° above the horizon. At Porto's latitude (41.2°), golden hour lasts approximately 28–40 minutes. During summer months, the longer twilight at this latitude extends the golden hour window compared to equatorial locations. Open the Photography Mode tab to see countdown timers for the next golden hour and blue hour windows.
How does Porto's latitude affect daylight hours?: Porto at latitude 41.2° experiences significant seasonal variation in daylight. Summer days reach approximately 15.0h of daylight at the solstice, while winter days drop to approximately 15.0h — a 0.0h difference between seasons. The sun's maximum altitude ranges from 72.3° in summer to 25.4° in winter. This mid-latitude pattern is why Porto has such pronounced seasonal changes in sunrise and sunset times compared to locations near the equator.
How accurate are sunrise times for Porto?: Sunrise and sunset calculations for Porto use the Jean Meeus Chapter 25 solar position algorithm, verified against the USNO Astronomical Almanac. Accuracy is ±1 minute for dates between 1901–2099. The algorithm accounts for atmospheric refraction (34 arcminutes at the horizon) and uses Porto's precise coordinates (41.2°, -8.6°). For sub-second astrometric accuracy, consult the USNO data service directly. — Solar Insight Pro, fastool.io