Solarposition.org

Pará · Brazil · 1.13° S · 47.62° W

Solar position in Igarapé-Açu

Sun position, daylight and the best solar panel angle for Igarapé-Açu — computed for 1.13° S, 47.62° W, 39 m above sea level.

Sunrise today05:50102° ESE
Sunset today17:58258° WSW
Best panel angle3°year-round, facing north
Off-grid angle0°best for the darkest month

The sun right now

Azimuth180.0°
Elevation79.2°
At solar noon, 11:54Open on the sun map

Sun in Igarapé-Açu today

Saturday, 24 October 2026 · local time UTC−3

EventTimeDirection / height
Astronomical dawn04:40sun 18° below horizon
Nautical dawn05:0412° below
Civil dawn05:296° below
Sunrise05:50102° ESE
Golden hour ends06:18sun 6° up
Solar noon11:5479.2° high
Golden hour starts17:31sun 6° up
Sunset17:58258° WSW
Civil dusk18:206° below
Nautical dusk18:4412° below
Astronomical dusk19:0918° below
Day length12 h 09 min

Sun path diagram for Igarapé-Açu

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 solstice789101112131415161718EquinoxDecember solstice789101112131415161718Today
  • June solstice
  • Equinox
  • December solstice
  • Today

On the June solstice the sun reaches 65.4° at solar noon in Igarapé-Açu; on the December solstice only 67.7°. Sunrise swings from 67° ENE in June to 113° ESE in December — a 47° 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
January06:1612:2118:2712 h 10 min71.3°
February06:1912:2418:2812 h 08 min80.7°
March06:1412:1718:2012 h 06 min88.5°
April06:0612:0918:1112 h 05 min76.9°
May06:0512:0718:0812 h 04 min68.6°
June06:1012:1218:1412 h 03 min65.4°
July06:1512:1618:1812 h 04 min68.5°
August06:1112:1318:1512 h 05 min76.9°
September06:0012:0318:0612 h 06 min88.3°
October05:5011:5517:5912 h 08 min80.3°
November05:5111:5618:0112 h 10 min71.1°
December06:0212:0818:1412 h 11 min67.7°

A year of daylight in Igarapé-Açu

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 Igarapé-Açu

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

3°collects the most energy over a year: 1509 kWh per kWp.

0°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 3°Best worst-month 0°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearFebruary kWh/kWp/dayBest ÷ worst month
0° off-grid best1506100%3.461.4×
1° = latitude1508100%3.451.4×
3° year-round best1509100%3.431.4×
15°148498%3.231.5×
30°138091%2.841.8×
45°120280%2.322.3×
60°96764%1.693.4×
70°80954%1.273.6×
90°54236%1.002.7×

A fixed array in Igarapé-Açu produces the most over a year at 3°. The design month for an off-grid system is February: at 0° it makes 3.46 kWh per kWp a day, and costs 0% of the yearly total. Why steep panels win winter.

Off-grid solar in Igarapé-Açu at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 3° (year-round best).

0123456January: 1.10 (70°)1.1JanFebruary: 1.27 (70°)1.3FebMarch: 1.74 (70°)1.7MarApril: 2.34 (70°)2.3AprMay: 3.10 (70°)3.1MayJune: 3.73 (70°)3.7JunJuly: 3.80 (70°)3.8JulAugust: 3.36 (70°)3.4AugSeptember: 2.44 (70°)2.4SepOctober: 1.53 (70°)1.5OctNovember: 1.06 (70°)1.1NovDecember: 1.07 (70°)1.1Dec3°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 3°Mean temp.
January4.681.411.103.6426.7 °C
February4.361.611.273.4326.2 °C
March4.462.181.743.5326.3 °C
April4.562.892.343.6426.3 °C
May4.933.813.103.9826.5 °C
June5.264.573.734.2726.5 °C
July5.554.663.804.5026.5 °C
August5.954.133.364.7926.8 °C
September6.083.032.444.8327.2 °C
October5.901.931.534.6327.9 °C
November5.651.371.064.3828.2 °C
December5.081.381.073.9327.6 °C
Year5.21 avg2.76 avg809 kWh1509 kWh

Sizing example. To run a 1 kWh-per-day load through November on LiFePO4 batteries (charge controller, battery and inverter losses included) you need about 1,120 Wp of panels at 70°, versus 340 Wp at 3°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.

Row spacing in Igarapé-Açu

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.

1.7 mrow pitch at 70°

2.1 mrow pitch at 3°

Row spacing calculator

How Igarapé-Açu compares in Brazil

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

1130thof 2,264 places in Brazil for sunshine, shared: 5.21 peak sun hours a day on flat ground.

−5%solar energy a year compared with the average place in Brazil: 1,509 against 1,581 kWh per kWp.

−1 h 24 mindaylight on the longest day, compared with São Paulo: 12 h 11 min against 13 h 35 min.

3°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); Igarapé-Açu ranks joint 1130th. In its darkest month, November, 1 kWp of off-grid panels at 70° makes 1.06 kWh a day here, against 1.56 kWh on average in Brazil. The shortest day lasts 12 h 03 min, +1 h 22 min compared with São Paulo.

The sunniest places in Brazil

Solar forecast for Igarapé-Açu, next 48 hours

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

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Questions about the sun in Igarapé-Açu

What is the best solar panel angle in Igarapé-Açu?
For a fixed array facing north, the best year-round tilt in Igarapé-Açu is 3°, worth about 1509 kWh per kWp a year. An off-grid system that has to get through February does better at about 0°.
What time is sunrise and sunset in Igarapé-Açu today?
On 24 October 2026 the sun rises at 05:50 and sets at 17:58 local time (UTC−3), giving 12 h 09 min of daylight. Solar noon is at 11:54.
How many peak sun hours does Igarapé-Açu get?
On a flat surface 5.2 hours a day averaged over the year, from 4.4 in February to 6.1 in September. Panels tilted at 70° receive 1.4 sun hours a day in November.
How high does the sun get in Igarapé-Açu?
At solar noon the sun stands 65.4° above the horizon on the June solstice and 67.7° on the December solstice.
Is Igarapé-Açu a good place for solar panels?
With 5.2 peak sun hours a day on flat ground, Igarapé-Açu ranks joint 1130th of 2,264 places in Brazil for sunshine. A 1 kWp array at the best angle (3°) makes about 1,509 kWh a year here, 5% less than the average place in Brazil.

Places near Igarapé-Açu

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.