Question 1

How many hours of daylight does Rio de Janeiro get today?

Accepted Answer

Rio de Janeiro currently gets approximately 11 hours and 45 minutes of daylight today. This varies throughout the year — days are longest around the summer solstice (June in the Northern Hemisphere, December in the Southern Hemisphere) and shortest around the winter solstice. Because Rio de Janeiro is near the equator, day length stays relatively consistent, typically between 11 and 13 hours. Our calculations use the SunCalc astronomical library for accuracy within 1–2 minutes.

Question 2

What time does the sun rise in Rio de Janeiro?

Accepted Answer

Sunrise times in Rio de Janeiro change throughout the year based on the Earth's axial tilt and the city's position at 22.9° latitude. Use the table above to see today's exact sunrise time, as well as dawn (civil twilight) and other twilight phases. The earliest sunrise typically occurs around the summer solstice, while the latest sunrise happens near the winter solstice. Near the equator, sunrise times vary by less than an hour across the year. All sunrise calculations are based on NOAA solar position algorithms via the SunCalc library.

Question 3

What time does the sun set in Rio de Janeiro?

Accepted Answer

Sunset times in Rio de Janeiro vary by season due to the Earth's orbital mechanics and the city's latitude of 22.9°. Check the table above for today's exact sunset time, including dusk and twilight phases. The latest sunset typically occurs a few days after the summer solstice, while the earliest sunset happens a few days before the winter solstice. Near the equator, sunset times remain fairly consistent throughout the year, typically varying by less than an hour.

Question 4

How does day length change throughout the year in Rio de Janeiro?

Accepted Answer

Rio de Janeiro is located near the equator at 22.9° latitude, so day length varies relatively little throughout the year — typically between about 11 and 13 hours. The sun rises and sets at roughly the same time year-round, and twilight transitions are short and abrupt compared to higher latitudes. This consistency makes Rio de Janeiro one of the more predictable locations for planning outdoor activities. The slight variation that does occur peaks around the equinoxes in March and September.

Question 5

What is civil twilight in Rio de Janeiro?

Accepted Answer

Civil twilight in Rio de Janeiro is the period when the sun is between 0° and 6° below the horizon. During civil twilight, there is enough natural light for most outdoor activities without artificial lighting. It occurs just before sunrise (dawn) and just after sunset (dusk). Near the equator, civil twilight is relatively short, typically lasting only 20–25 minutes. The exact duration for Rio de Janeiro is shown in the twilight data table above.

Question 6

What are the different twilight phases?

Accepted Answer

There are three twilight phases, each defined by the sun's angle below the horizon. Civil twilight (0°–6°) is the brightest phase, with enough light for outdoor activities without artificial lighting. Nautical twilight (6°–12°) is dimmer but still allows sailors to see the horizon for celestial navigation. Astronomical twilight (12°–18°) is nearly dark, with only the faintest glow on the horizon, and most stars become visible. Below 18° is considered full astronomical night. The duration of each phase varies by latitude and season — our data table above shows all twilight phases for Rio de Janeiro.

Question 7

When is the longest day in Rio de Janeiro?

Accepted Answer

The longest day in Rio de Janeiro occurs around the summer solstice. For Rio de Janeiro in the Southern Hemisphere, the longest day is around December 21–22. On this date, Rio de Janeiro experiences its earliest sunrise and near-latest sunset of the year. Near the equator, the longest day is only slightly longer than the shortest, differing by about 1–2 hours. The shortest day (winter solstice) occurs approximately six months later.

Question 8

Does daylight saving time affect sunrise and sunset times in Rio de Janeiro?

Accepted Answer

Rio de Janeiro does not observe daylight saving time, so sunrise and sunset times change only due to natural seasonal variation throughout the year. The gradual shift in sunrise and sunset times follows a smooth curve driven by the Earth's axial tilt and orbital position. This makes it easier to predict sunrise and sunset patterns in Rio de Janeiro compared to cities that observe DST, where clock changes create abrupt jumps in the schedule.

Astronomical Dawn	4:45:13 AM
Nautical Dawn	5:11:17 AM
Civil Dawn	5:37:23 AM
Sunrise	5:59:56 AM
Golden Hour End	6:29:54 AM
Solar Noon	11:52:37 AM
Golden Hour Start	5:15:19 PM
Sunset	5:45:17 PM
Civil Dusk	6:07:50 PM
Nautical Dusk	6:33:56 PM
Astronomical Dusk	7:00:00 PM
Day Length	11h 45m

Moonrise	2:25:53 AM
Moonset	1:17:55 PM
Moon Phase	🌘 Waning Crescent
Illumination	24%

Date	Sunrise	Sunset	Day Length	Moonrise	Moonset	Phase
Sep 1, Tue	6:04 AM	5:43 PM	11h 39m	—	8:34 AM	🌖
Sep 2, Wed	6:03 AM	5:44 PM	11h 40m	10:02 PM	9:17 AM	🌗
Sep 3, Thu	6:02 AM	5:44 PM	11h 42m	11:08 PM	10:08 AM	🌗
Sep 4, Fri	6:01 AM	5:44 PM	11h 43m	12:16 AM	11:06 AM	🌗
Sep 5, Sat	6:00 AM	5:45 PM	11h 44m	1:23 AM	12:10 PM	🌗
Sep 6, Sun	5:59 AM	5:45 PM	11h 45m	2:25 AM	1:17 PM	🌘
Sep 7, Mon	5:58 AM	5:45 PM	11h 47m	3:21 AM	2:25 PM	🌘
Sep 8, Tue	5:57 AM	5:45 PM	11h 48m	4:09 AM	3:32 PM	🌘
Sep 9, Wed	5:56 AM	5:46 PM	11h 49m	4:52 AM	4:34 PM	🌑
Sep 10, Thu	5:55 AM	5:46 PM	11h 50m	5:30 AM	5:33 PM	🌑
Sep 11, Fri	5:54 AM	5:46 PM	11h 52m	6:04 AM	6:30 PM	🌑
Sep 12, Sat	5:53 AM	5:47 PM	11h 53m	6:39 AM	7:25 PM	🌑
Sep 13, Sun	5:52 AM	5:47 PM	11h 54m	7:12 AM	8:20 PM	🌒
Sep 14, Mon	5:51 AM	5:47 PM	11h 56m	7:47 AM	—	🌒
Sep 15, Tue	5:50 AM	5:47 PM	11h 57m	8:23 AM	9:15 PM	🌒
Sep 16, Wed	5:49 AM	5:48 PM	11h 58m	9:03 AM	10:11 PM	🌒
Sep 17, Thu	5:48 AM	5:48 PM	12h 0m	9:48 AM	11:06 PM	🌓
Sep 18, Fri	5:47 AM	5:48 PM	12h 1m	10:37 AM	12:01 AM	🌓
Sep 19, Sat	5:46 AM	5:49 PM	12h 2m	11:29 AM	12:52 AM	🌓
Sep 20, Sun	5:45 AM	5:49 PM	12h 3m	12:22 PM	1:39 AM	🌓
Sep 21, Mon	5:44 AM	5:49 PM	12h 5m	1:17 PM	2:22 AM	🌔
Sep 22, Tue	5:43 AM	5:49 PM	12h 6m	2:12 PM	3:02 AM	🌔
Sep 23, Wed	5:42 AM	5:50 PM	12h 7m	3:06 PM	3:38 AM	🌔
Sep 24, Thu	5:41 AM	5:50 PM	12h 9m	3:59 PM	4:12 AM	🌔
Sep 25, Fri	5:40 AM	5:50 PM	12h 10m	4:54 PM	4:45 AM	🌕
Sep 26, Sat	5:39 AM	5:51 PM	12h 11m	5:50 PM	5:18 AM	🌕
Sep 27, Sun	5:38 AM	5:51 PM	12h 13m	6:48 PM	5:53 AM	🌕
Sep 28, Mon	5:37 AM	5:51 PM	12h 14m	7:49 PM	6:29 AM	🌖
Sep 29, Tue	5:36 AM	5:51 PM	12h 15m	8:53 PM	7:11 AM	🌖
Sep 30, Wed	5:35 AM	5:52 PM	12h 17m	—	7:59 AM	🌖

Sunrise & Sunset in Rio de Janeiro, Brazil

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Moon

Monthly Summary — September 2026

Twilight Phases in Rio de Janeiro

Holidays in Brazil

Explore Rio de Janeiro

Frequently Asked Questions about Sunrise & Sunset in Rio de Janeiro

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