Solarposition.org

Minas Gerais · Brazil · 18.21° S · 45.24° W

Solar position in Três Marias

Sun position, daylight and the best solar panel angle for Três Marias — computed for 18.21° S, 45.24° W, 547 m above sea level.

Sunrise today05:25103° ESE
Sunset today18:04257° WSW
Best panel angle21°year-round, facing north
Off-grid angle13°best for the darkest month

The sun right now

Azimuth180.0°
Elevation83.7°
At solar noon, 11:45Open on the sun map

Sun in Três Marias today

Saturday, 24 October 2026 · local time UTC−3

EventTimeDirection / height
Astronomical dawn04:10sun 18° below horizon
Nautical dawn04:3712° below
Civil dawn05:036° below
Sunrise05:25103° ESE
Golden hour ends05:55sun 6° up
Solar noon11:4583.7° high
Golden hour starts17:35sun 6° up
Sunset18:04257° WSW
Civil dusk18:276° below
Nautical dusk18:5312° below
Astronomical dusk19:2018° below
Day length12 h 39 min

Sun path diagram for Três Marias

Where the sun stands in the sky: the centre is straight overhead, the outer ring is the horizon. Numbers mark local clock hours.

15°30°45°60°75°N30°60°E120°150°S210°240°W300°330°June solstice7891011121314151617EquinoxDecember solstice6789101112131415161718Today
  • June solstice
  • Equinox
  • December solstice
  • Today

On the June solstice the sun reaches 48.4° at solar noon in Três Marias; on the December solstice only 84.8°. Sunrise swings from 66° ENE in June to 115° ESE in December — a 50° arc along the horizon.

Sunrise, sunset and sun height by month

Values for the 21st of each month, local clock time including daylight saving time.

MonthSunriseSolar noonSunsetDay lengthNoon elevation
January05:4112:1218:4313 h 02 min88.4°
February05:5712:1418:3112 h 35 min82.2°
March06:0512:0718:1012 h 06 min71.4°
April06:1211:5917:4711 h 35 min59.8°
May06:2111:5717:3311 h 12 min51.5°
June06:3112:0217:3311 h 02 min48.4°
July06:3112:0717:4311 h 11 min51.4°
August06:1612:0417:5111 h 35 min59.8°
September05:5111:5417:5612 h 05 min71.3°
October05:2711:4518:0312 h 36 min82.6°
November05:1511:4618:1813 h 03 min88.2°
December05:2211:5918:3513 h 14 min84.8°

A year of daylight in Três Marias

Each column is one day of 2026. Bright: sun above the horizon; soft: civil twilight; line: solar noon. Steps are daylight saving time changes.

00:0003:0006:0009:0012:0015:0018:0021:0000:00JanFebMarAprMayJunJulAugSepOctNovDec

Best solar panel angle in Três Marias

Fixed array facing north (azimuth 0°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.

21°collects the most energy over a year: 1695 kWh per kWp.

13°gives the most in the darkest month — the one an off-grid system is sized for.

20%30%40%50%60%70%80%90%100%0°10°20°30°40°50°60°70°80°90°Best year-round 21°Best worst-month 13°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearNovember kWh/kWp/dayBest ÷ worst month
0°159894%4.451.4×
13° off-grid best168199%4.291.2×
15°1687100%4.251.2×
18° = latitude1693100%4.191.2×
21° year-round best1695100%4.111.3×
30°167799%3.831.4×
45°156993%3.211.7×
60°137381%2.442.3×
70°120171%1.893.0×
90°82949%1.113.6×

A fixed array in Três Marias produces the most over a year at 21°. The design month for an off-grid system is November: at 13° it makes 4.29 kWh per kWp a day, 4% more than at 21°, and costs 1% of the yearly total. Why steep panels win winter.

Off-grid solar in Três Marias at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 21° (year-round best).

0123456January: 1.81 (70°)1.8JanFebruary: 2.37 (70°)2.4FebMarch: 2.96 (70°)3.0MarApril: 3.83 (70°)3.8AprMay: 4.38 (70°)4.4MayJune: 4.78 (70°)4.8JunJuly: 4.91 (70°)4.9JulAugust: 4.62 (70°)4.6AugSeptember: 3.64 (70°)3.6SepOctober: 2.58 (70°)2.6OctNovember: 1.89 (70°)1.9NovDecember: 1.66 (70°)1.7Dec21°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 21°Mean temp.
January6.042.251.814.3824.5 °C
February6.132.912.374.6924.5 °C
March5.543.612.964.5624.0 °C
April5.234.643.834.7123.5 °C
May4.695.274.384.6121.8 °C
June4.485.744.784.6421.1 °C
July4.765.904.914.8721.2 °C
August5.495.594.625.2122.9 °C
September6.004.443.645.1225.4 °C
October6.013.182.584.6926.5 °C
November5.562.351.894.1124.9 °C
December5.782.071.664.1424.5 °C
Year5.47 avg4.00 avg1201 kWh1695 kWh

Sizing example. To run a 1 kWh-per-day load through December on LiFePO4 batteries (charge controller, battery and inverter losses included) you need about 710 Wp of panels at 70°, versus 290 Wp at 21°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.

Row spacing in Três Marias

Distance between rows of 2 m long panels (slope length) so that no row shades the next between 10:00 and 14:00 solar time on the winter solstice.

2.6 mrow pitch at 70°

2.6 mrow pitch at 21°

Row spacing calculator

How Três Marias compares in Brazil

Against the other 2,263 places in Brazil with climate data, for a fixed array at its best angle.

720thof 2,264 places in Brazil for sunshine, shared: 5.47 peak sun hours a day on flat ground.

+7%solar energy a year compared with the average place in Brazil: 1,695 against 1,581 kWh per kWp.

−22 mindaylight on the longest day, compared with São Paulo: 13 h 14 min against 13 h 35 min.

21°best year-round tilt here; across Brazil it runs from 0° in Macapá to 28° in Santa Vitória do Palmar.

Of the 2,264 places in Brazil, Catolé do Rocha gets the most sun (6.16 peak sun hours a day) and Paranaguá the least (4.01); Três Marias ranks joint 720th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 1.66 kWh a day here, against 1.56 kWh on average in Brazil. The shortest day lasts 11 h 02 min, +21 min compared with São Paulo.

The sunniest places in Brazil

Solar forecast for Três Marias, next 48 hours

Expected output of 1 kWp at 70°, computed from the ICON-EU weather model of the Deutscher Wetterdienst (DWD), Europe.

Loading the latest forecast…

Questions about the sun in Três Marias

What is the best solar panel angle in Três Marias?
For a fixed array facing north, the best year-round tilt in Três Marias is 21°, worth about 1695 kWh per kWp a year. An off-grid system that has to get through November does better at about 13°.
What time is sunrise and sunset in Três Marias today?
On 24 October 2026 the sun rises at 05:25 and sets at 18:04 local time (UTC−3), giving 12 h 39 min of daylight. Solar noon is at 11:45.
How many peak sun hours does Três Marias get?
On a flat surface 5.5 hours a day averaged over the year, from 4.5 in June to 6.1 in February. Panels tilted at 70° receive 2.1 sun hours a day in December.
How high does the sun get in Três Marias?
At solar noon the sun stands 48.4° above the horizon on the June solstice and 84.8° on the December solstice.
Is Três Marias a good place for solar panels?
With 5.5 peak sun hours a day on flat ground, Três Marias ranks joint 720th of 2,264 places in Brazil for sunshine. A 1 kWp array at the best angle (21°) makes about 1,695 kWh a year here, 7% more than the average place in Brazil.

Places near Três Marias

All places in Brazil

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Sun positions: NREL Solar Position Algorithm. Climate: NASA POWER monthly climatology (NASA Langley Research Center). Forecast: Deutscher Wetterdienst, ICON-EU (CC BY 4.0), processed. Places: GeoNames (CC BY 4.0). Time zones: IANA. Sources and licences.