Solarposition.org

Rio Grande do Sul · Brazil · 28.21° S · 51.53° W

Solar position in Lagoa Vermelha

Sun position, daylight and the best solar panel angle for Lagoa Vermelha — computed for 28.21° S, 51.53° W, 793 m above sea level.

Sunrise today05:40104° ESE
Sunset today18:40256° WSW
Best panel angle25°year-round, facing north
Off-grid angle52°best for the darkest month

The sun right now

Azimuth180.0°
Elevation73.7°
At solar noon, 12:10Open on the sun map

Sun in Lagoa Vermelha today

Saturday, 24 October 2026 · local time UTC−3

EventTimeDirection / height
Astronomical dawn04:18sun 18° below horizon
Nautical dawn04:4712° below
Civil dawn05:166° below
Sunrise05:40104° ESE
Golden hour ends06:12sun 6° up
Solar noon12:1073.7° high
Golden hour starts18:08sun 6° up
Sunset18:40256° WSW
Civil dusk19:046° below
Nautical dusk19:3312° below
Astronomical dusk20:0318° below
Day length13 h 00 min

Sun path diagram for Lagoa Vermelha

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 solstice891011121314151617EquinoxDecember solstice678910111213141516171819Today
  • June solstice
  • Equinox
  • December solstice
  • Today

On the June solstice the sun reaches 38.4° at solar noon in Lagoa Vermelha; on the December solstice only 85.2°. Sunrise swings from 64° ENE in June to 117° ESE in December — a 54° 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
January05:4812:3719:2513 h 37 min81.6°
February06:1312:3919:0512 h 53 min72.2°
March06:3012:3318:3512 h 06 min61.4°
April06:4612:2418:0211 h 15 min49.8°
May07:0412:2217:4010 h 37 min41.5°
June07:1712:2717:3810 h 21 min38.4°
July07:1412:3217:5010 h 36 min41.4°
August06:5112:2918:0711 h 15 min49.8°
September06:1612:1918:2112 h 05 min61.3°
October05:4312:1018:3812 h 55 min72.6°
November05:2212:1219:0113 h 38 min81.8°
December05:2612:2419:2213 h 56 min85.2°

A year of daylight in Lagoa Vermelha

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 Lagoa Vermelha

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

25°collects the most energy over a year: 1515 kWh per kWp.

52°gives the most in the darkest month — the one an off-grid system is sized for.

30%40%50%60%70%80%90%100%0°10°20°30°40°50°60°70°80°90°Best year-round 25°Best worst-month 52°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearJune kWh/kWp/dayBest ÷ worst month
0°139192%2.152.5×
15°149499%2.731.9×
25° year-round best1515100%3.031.6×
28° = latitude1514100%3.101.5×
30°1511100%3.151.5×
45°144195%3.371.3×
52° off-grid best138091%3.411.2×
60°128985%3.391.4×
70°114976%3.281.7×
90°80853%2.812.7×

A fixed array in Lagoa Vermelha produces the most over a year at 25°. The design month for an off-grid system is June: at 52° it makes 3.41 kWh per kWp a day, 12% more than at 25°, and costs 9% of the yearly total. Why steep panels win winter.

Off-grid solar in Lagoa Vermelha at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 25° (year-round best).

0123456January: 2.45 (70°)2.4JanFebruary: 2.94 (70°)2.9FebMarch: 3.41 (70°)3.4MarApril: 3.74 (70°)3.7AprMay: 3.43 (70°)3.4MayJune: 3.28 (70°)3.3JunJuly: 3.71 (70°)3.7JulAugust: 3.82 (70°)3.8AugSeptember: 3.25 (70°)3.3SepOctober: 2.85 (70°)2.8OctNovember: 2.58 (70°)2.6NovDecember: 2.30 (70°)2.3Dec25°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 25°Mean temp.
January6.332.982.454.7521.7 °C
February5.933.562.944.7621.5 °C
March5.154.093.414.5420.2 °C
April4.144.423.744.1217.6 °C
May3.074.003.433.3513.9 °C
June2.643.813.283.0312.4 °C
July2.994.293.713.4511.8 °C
August3.744.453.823.9513.5 °C
September4.283.823.254.0115.3 °C
October5.093.402.854.2717.9 °C
November6.303.112.584.8619.2 °C
December6.482.802.304.7820.9 °C
Year4.67 avg3.73 avg1149 kWh1515 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 510 Wp of panels at 70°, versus 390 Wp at 25°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.

Row spacing in Lagoa Vermelha

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.

3.3 mrow pitch at 70°

3.0 mrow pitch at 25°

Row spacing calculator

How Lagoa Vermelha compares in Brazil

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

1972ndof 2,264 places in Brazil for sunshine, shared: 4.67 peak sun hours a day on flat ground.

−4%solar energy a year compared with the average place in Brazil: 1,515 against 1,581 kWh per kWp.

+21 mindaylight on the longest day, compared with São Paulo: 13 h 56 min against 13 h 35 min.

25°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); Lagoa Vermelha ranks joint 1972nd. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 2.30 kWh a day here, against 1.56 kWh on average in Brazil. The shortest day lasts 10 h 21 min, −20 min compared with São Paulo.

The sunniest places in Brazil

Solar forecast for Lagoa Vermelha, 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 Lagoa Vermelha

What is the best solar panel angle in Lagoa Vermelha?
For a fixed array facing north, the best year-round tilt in Lagoa Vermelha is 25°, worth about 1515 kWh per kWp a year. An off-grid system that has to get through June does better at about 52°.
What time is sunrise and sunset in Lagoa Vermelha today?
On 24 October 2026 the sun rises at 05:40 and sets at 18:40 local time (UTC−3), giving 13 h 00 min of daylight. Solar noon is at 12:10.
How many peak sun hours does Lagoa Vermelha get?
On a flat surface 4.7 hours a day averaged over the year, from 2.6 in June to 6.5 in December. Panels tilted at 70° receive 2.8 sun hours a day in December.
How high does the sun get in Lagoa Vermelha?
At solar noon the sun stands 38.4° above the horizon on the June solstice and 85.2° on the December solstice.
Is Lagoa Vermelha a good place for solar panels?
With 4.7 peak sun hours a day on flat ground, Lagoa Vermelha ranks joint 1972nd of 2,264 places in Brazil for sunshine. A 1 kWp array at the best angle (25°) makes about 1,515 kWh a year here, 4% less than the average place in Brazil.

Places near Lagoa Vermelha

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.