Solarposition.org

Rio Grande do Sul · Brazil · 32.24° S · 53.09° W

Solar position in Arroio Grande

Sun position, daylight and the best solar panel angle for Arroio Grande — computed for 32.24° S, 53.09° W, 31 m above sea level.

Sunrise today05:42105° ESE
Sunset today18:51255° WSW
Best panel angle27°year-round, facing north
Off-grid angle57°best for the darkest month

The sun right now

Azimuth180.0°
Elevation69.7°
At solar noon, 12:16Open on the sun map

Sun in Arroio Grande today

Saturday, 24 October 2026 · local time UTC−3

EventTimeDirection / height
Astronomical dawn04:15sun 18° below horizon
Nautical dawn04:4612° below
Civil dawn05:166° below
Sunrise05:42105° ESE
Golden hour ends06:15sun 6° up
Solar noon12:1669.7° high
Golden hour starts18:18sun 6° up
Sunset18:51255° WSW
Civil dusk19:166° below
Nautical dusk19:4712° below
Astronomical dusk20:1818° below
Day length13 h 09 min

Sun path diagram for Arroio Grande

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 34.3° at solar noon in Arroio Grande; on the December solstice only 81.2°. Sunrise swings from 63° ENE in June to 119° ESE in December — a 56° 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
January05:4612:4319:4013 h 54 min77.6°
February06:1512:4519:1613 h 01 min68.2°
March06:3612:3918:4212 h 06 min57.4°
April06:5712:3018:0311 h 06 min45.8°
May07:1812:2817:3910 h 21 min37.5°
June07:3312:3417:3510 h 02 min34.3°
July07:2812:3817:4910 h 20 min37.4°
August07:0212:3518:0811 h 07 min45.8°
September06:2312:2518:2812 h 05 min57.2°
October05:4512:1718:4813 h 04 min68.6°
November05:2012:1819:1513 h 55 min77.8°
December05:2212:3019:3814 h 16 min81.2°

A year of daylight in Arroio Grande

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 Arroio Grande

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

27°collects the most energy over a year: 1520 kWh per kWp.

57°gives the most in the darkest month — the one an off-grid system is sized for.

40%50%60%70%80%90%100%0°10°20°30°40°50°60°70°80°90°Best year-round 27°Best worst-month 57°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearJune kWh/kWp/dayBest ÷ worst month
0°137590%1.873.1×
15°149098%2.452.3×
27° year-round best1520100%2.811.9×
30°1518100%2.881.8×
32° = latitude1515100%2.931.7×
45°145996%3.131.4×
57° off-grid best135189%3.201.3×
60°131687%3.191.3×
70°118078%3.121.4×
90°84055%2.732.3×

A fixed array in Arroio Grande produces the most over a year at 27°. The design month for an off-grid system is June: at 57° it makes 3.20 kWh per kWp a day, 14% more than at 27°, and costs 11% of the yearly total. Why steep panels win winter.

Off-grid solar in Arroio Grande at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 27° (year-round best).

0123456January: 2.81 (70°)2.8JanFebruary: 3.25 (70°)3.2FebMarch: 3.63 (70°)3.6MarApril: 3.79 (70°)3.8AprMay: 3.31 (70°)3.3MayJune: 3.12 (70°)3.1JunJuly: 3.29 (70°)3.3JulAugust: 3.42 (70°)3.4AugSeptember: 3.35 (70°)3.3SepOctober: 3.20 (70°)3.2OctNovember: 2.96 (70°)3.0NovDecember: 2.69 (70°)2.7Dec27°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 27°Mean temp.
January6.873.452.815.1523.8 °C
February6.093.953.254.9523.7 °C
March5.104.383.634.5922.0 °C
April3.904.513.794.0219.0 °C
May2.793.883.313.1515.3 °C
June2.333.633.122.8112.7 °C
July2.553.813.293.0311.6 °C
August3.203.983.423.4713.1 °C
September4.113.923.353.9514.5 °C
October5.263.803.204.5317.1 °C
November6.593.562.965.1519.5 °C
December7.053.272.695.2122.0 °C
Year4.64 avg3.84 avg1180 kWh1520 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 440 Wp of panels at 70°, versus 420 Wp at 27°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.

Row spacing in Arroio Grande

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.

3.8 mrow pitch at 70°

3.3 mrow pitch at 27°

Row spacing calculator

How Arroio Grande compares in Brazil

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

2000thof 2,264 places in Brazil for sunshine, shared: 4.64 peak sun hours a day on flat ground.

−4%solar energy a year compared with the average place in Brazil: 1,520 against 1,581 kWh per kWp.

+41 mindaylight on the longest day, compared with São Paulo: 14 h 16 min against 13 h 35 min.

27°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); Arroio Grande ranks joint 2000th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 2.69 kWh a day here, against 1.56 kWh on average in Brazil. The shortest day lasts 10 h 02 min, −39 min compared with São Paulo.

The sunniest places in Brazil

Solar forecast for Arroio Grande, 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 Arroio Grande

What is the best solar panel angle in Arroio Grande?
For a fixed array facing north, the best year-round tilt in Arroio Grande is 27°, worth about 1520 kWh per kWp a year. An off-grid system that has to get through June does better at about 57°.
What time is sunrise and sunset in Arroio Grande today?
On 24 October 2026 the sun rises at 05:42 and sets at 18:51 local time (UTC−3), giving 13 h 09 min of daylight. Solar noon is at 12:16.
How many peak sun hours does Arroio Grande get?
On a flat surface 4.6 hours a day averaged over the year, from 2.3 in June to 7.0 in December. Panels tilted at 70° receive 3.3 sun hours a day in December.
How high does the sun get in Arroio Grande?
At solar noon the sun stands 34.3° above the horizon on the June solstice and 81.2° on the December solstice.
Is Arroio Grande a good place for solar panels?
With 4.6 peak sun hours a day on flat ground, Arroio Grande ranks joint 2000th of 2,264 places in Brazil for sunshine. A 1 kWp array at the best angle (27°) makes about 1,520 kWh a year here, 4% less than the average place in Brazil.

Places near Arroio Grande

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.