Goiás · Brazil · 16.25° S · 47.95° W
Solar position in Luziânia
Sun position, daylight and the best solar panel angle for Luziânia — computed for 16.25° S, 47.95° W, 932 m above sea level.
The sun right now
Sun in Luziânia today
Saturday, 24 October 2026 · local time UTC−3
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:24 | sun 18° below horizon |
| Nautical dawn | 04:50 | 12° below |
| Civil dawn | 05:16 | 6° below |
| Sunrise | 05:38 | 103° ESE |
| Golden hour ends | 06:07 | sun 6° up |
| Solar noon | 11:56 | 85.6° high |
| Golden hour starts | 17:44 | sun 6° up |
| Sunset | 18:13 | 257° WSW |
| Civil dusk | 18:35 | 6° below |
| Nautical dusk | 19:01 | 12° below |
| Astronomical dusk | 19:28 | 18° below |
| Day length | 12 h 35 min | |
Sun path diagram for Luziânia
Where the sun stands in the sky: the centre is straight overhead, the outer ring is the horizon. Numbers mark local clock hours.
- June solstice
- Equinox
- December solstice
- Today
On the June solstice the sun reaches 50.3° at solar noon in Luziânia; on the December solstice only 82.8°. Sunrise swings from 66° ENE in June to 115° ESE in December — a 49° 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.
| Month | Sunrise | Solar noon | Sunset | Day length | Noon elevation |
|---|---|---|---|---|---|
| January | 05:55 | 12:23 | 18:50 | 12 h 56 min | 86.4° |
| February | 06:09 | 12:25 | 18:40 | 12 h 32 min | 84.1° |
| March | 06:15 | 12:18 | 18:21 | 12 h 06 min | 73.3° |
| April | 06:21 | 12:10 | 17:59 | 11 h 39 min | 61.7° |
| May | 06:29 | 12:08 | 17:47 | 11 h 18 min | 53.5° |
| June | 06:38 | 12:13 | 17:48 | 11 h 10 min | 50.3° |
| July | 06:39 | 12:18 | 17:57 | 11 h 18 min | 53.4° |
| August | 06:25 | 12:15 | 18:04 | 11 h 39 min | 61.8° |
| September | 06:02 | 12:04 | 18:07 | 12 h 05 min | 73.2° |
| October | 05:40 | 11:56 | 18:12 | 12 h 33 min | 84.6° |
| November | 05:29 | 11:57 | 18:25 | 12 h 56 min | 86.3° |
| December | 05:36 | 12:09 | 18:42 | 13 h 06 min | 82.8° |
A year of daylight in Luziânia
Each column is one day of 2026. Bright: sun above the horizon; soft: civil twilight; line: solar noon. Steps are daylight saving time changes.
Best solar panel angle in Luziânia
Fixed array facing north (azimuth 0°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
20°collects the most energy over a year: 1703 kWh per kWp.
8°gives the most in the darkest month — the one an off-grid system is sized for.
- Yearly energy
- Worst-month energy
| Tilt | kWh/kWp per year | Share of best year | November kWh/kWp/day | Best ÷ worst month |
|---|---|---|---|---|
| 0° | 1616 | 95% | 4.37 | 1.3× |
| 8° off-grid best | 1672 | 98% | 4.29 | 1.2× |
| 15° | 1698 | 100% | 4.16 | 1.3× |
| 16° = latitude | 1700 | 100% | 4.13 | 1.3× |
| 20° year-round best | 1703 | 100% | 4.03 | 1.3× |
| 30° | 1680 | 99% | 3.72 | 1.5× |
| 45° | 1565 | 92% | 3.09 | 1.9× |
| 60° | 1363 | 80% | 2.32 | 2.5× |
| 70° | 1188 | 70% | 1.78 | 3.2× |
| 90° | 818 | 48% | 1.11 | 3.7× |
A fixed array in Luziânia produces the most over a year at 20°. The design month for an off-grid system is November: at 8° it makes 4.29 kWh per kWp a day, 6% more than at 20°, and costs 2% of the yearly total. Why steep panels win winter.
Off-grid solar in Luziânia at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 20° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 20° | Mean temp. |
|---|---|---|---|---|---|
| January | 5.83 | 2.10 | 1.69 | 4.26 | 22.8 °C |
| February | 5.91 | 2.72 | 2.22 | 4.54 | 22.7 °C |
| March | 5.48 | 3.44 | 2.83 | 4.50 | 22.4 °C |
| April | 5.33 | 4.55 | 3.78 | 4.77 | 21.8 °C |
| May | 4.91 | 5.34 | 4.47 | 4.77 | 20.5 °C |
| June | 4.76 | 5.91 | 4.95 | 4.86 | 19.9 °C |
| July | 5.05 | 6.06 | 5.07 | 5.10 | 20.3 °C |
| August | 5.74 | 5.64 | 4.68 | 5.38 | 22.3 °C |
| September | 6.04 | 4.28 | 3.51 | 5.10 | 25.0 °C |
| October | 5.91 | 2.99 | 2.42 | 4.59 | 25.5 °C |
| November | 5.45 | 2.21 | 1.78 | 4.03 | 23.6 °C |
| December | 5.67 | 1.96 | 1.57 | 4.08 | 23.0 °C |
| Year | 5.50 avg | 3.94 avg | 1188 kWh | 1703 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 750 Wp of panels at 70°, versus 290 Wp at 20°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Luziânia
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.
2.4 mrow pitch at 70°
2.5 mrow pitch at 20°
How Luziânia compares in Brazil
Against the other 2,263 places in Brazil with climate data, for a fixed array at its best angle.
668thof 2,264 places in Brazil for sunshine, shared: 5.50 peak sun hours a day on flat ground.
+8%solar energy a year compared with the average place in Brazil: 1,703 against 1,581 kWh per kWp.
−29 mindaylight on the longest day, compared with São Paulo: 13 h 06 min against 13 h 35 min.
20°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); Luziânia ranks joint 668th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 1.58 kWh a day here, against 1.56 kWh on average in Brazil. The shortest day lasts 11 h 10 min, +29 min compared with São Paulo.
Solar forecast for Luziânia, 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 Luziânia
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A free, live card for Luziânia: where the sun is right now on today's path, a countdown to sunset or sunrise, the daylight change, the moon phase at night and the best panel angle.
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.