Sun movement in Petrópolis

Sun times and movement for Petrópolis ·

Sunrise
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Sunset
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Solar noon
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Day length
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Dawn (Fajr)
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Dusk (Isha)
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Sun arc today

The sun's path across the sky from sunrise to sunset

Sun path
Current position
Horizon
Prayer times
Twilight

Details

Astronomical details for the sun's position today

Max altitude --°
Sunrise direction --°
Sunset direction --°
Civil twilight start --:--
Civil twilight end --:--
Nautical twilight start --:--
Nautical twilight end --:--
Astronomical twilight start --:--
Astronomical twilight end --:--

Monthly overview

Sunrise & sunset for every day in this month

Day Sunrise Sunset Day length

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FAQ about sun movement in Petrópolis

What time is sunrise in Petrópolis today?
Sunrise times in Petrópolis change throughout the year. Check the table above for today's exact sunrise time. Sunrise is when the upper edge of the sun appears above the horizon, accounting for atmospheric refraction.
What time is sunset in Petrópolis today?
Sunset times in Petrópolis vary by season. The table above shows today's exact sunset time. Sunset is defined as the moment the upper edge of the sun disappears below the horizon.
How long is the day in Petrópolis?
Day length in Petrópolis changes throughout the year due to the Earth's axial tilt. In summer, days are longer, while in winter they are shorter. The difference can be significant depending on the city's latitude. Check the day length column in the table above.
What is solar noon?
Solar noon is the moment when the sun reaches its highest point in the sky for the day. It marks the midpoint between sunrise and sunset. Solar noon does not always occur at 12:00 clock time due to timezone boundaries, daylight saving time, and the equation of time.
What are the different types of twilight?
There are three types of twilight: Civil twilight (sun 0–6° below horizon) when there is enough light for outdoor activities; Nautical twilight (sun 6–12° below) when the horizon is still visible at sea; and Astronomical twilight (sun 12–18° below) when the sky is dark enough for astronomical observations. These phases are important for determining Fajr and Isha prayer times.
How does the sun affect prayer times?
All five Islamic daily prayers are determined by the sun's position. Fajr begins at dawn (astronomical twilight). Dhuhr starts after solar noon. Asr is when shadows reach a specific length. Maghrib begins at sunset. Isha starts when twilight disappears. Accurate sun data is essential for correct prayer times.
Why do sun times change with the seasons?
Sun times change because the Earth's axis is tilted at 23.44° relative to its orbit around the Sun. During summer in the Northern Hemisphere, the North Pole tilts toward the Sun, giving longer days. During winter, it tilts away, shortening days. This effect is more pronounced at higher latitudes.
What is the sun's altitude?
The sun's altitude is the angle between the sun and the horizon, measured in degrees. At sunrise and sunset it is 0° (accounting for refraction). At solar noon it reaches its maximum for the day. The maximum altitude depends on your latitude and the time of year.
What is the sun's azimuth?
The sun's azimuth is the compass direction of the sun measured in degrees from north (0° = North, 90° = East, 180° = South, 270° = West). The sun rises roughly in the east and sets roughly in the west, but the exact azimuth varies by season and latitude.
What happens at the equinox?
At the equinoxes (around March 20 and September 22), day and night are approximately equal in length everywhere on Earth. The sun rises almost exactly due east and sets almost exactly due west. After the March equinox, days get longer in the Northern Hemisphere; after the September equinox, they get shorter.

Sun movement in Petrópolis

This page shows detailed sun movement data for Petrópolis at latitude -22.38°. Sunrise, sunset, day length, solar noon, and all twilight times are calculated for your city.

The sun's movement has a central importance for Muslim prayer life. All five daily prayers are directly linked to the sun's position in the sky.

Sun position and Islamic prayer times

In Islam, the five daily prayers are directly tied to the sun's position in Petrópolis. Fajr begins at dawn when the first light appears on the horizon, before the sun rises. Dhuhr is prayed after the sun passes its highest point (solar noon) and begins to decline. Asr is determined when an object's shadow reaches a specific length relative to the object itself. Maghrib begins immediately after sunset, and Isha starts when the twilight has fully disappeared. Understanding sun movement data helps Muslims pray at the precise correct times.

Understanding twilight phases

The different types of twilight – civil, nautical and astronomical – play an important role in determining Fajr and Isha prayer times.

Seasonal variation in sun times in Petrópolis

Sun times in Petrópolis change dramatically throughout the year at latitude -22.4°. Near the equator, sunrise and sunset times remain relatively stable year-round, with roughly 12 hours of daylight. At higher latitudes, the difference between summer and winter can be extreme — cities in Scandinavia may experience nearly 24 hours of daylight in summer and very short days in winter. This seasonal variation directly impacts prayer schedules, making Fajr very early in summer and quite late in winter for northern cities. The equinoxes in March and September mark the points where day and night are approximately equal worldwide.

Practical uses of sun data

Beyond prayer times, sun movement data in Petrópolis serves many practical purposes. Photographers and filmmakers use golden hour and blue hour calculations to plan shoots. Architects consider sun angles when designing buildings for optimal natural lighting and energy efficiency. Farmers and gardeners use day length data to plan planting schedules. Solar panel owners track the sun's path to maximize energy production. Hikers and outdoor enthusiasts check sunrise and sunset times for safety planning. Astronomers use twilight data to determine optimal stargazing conditions.