Federal District · Brazil · 15.62° S · 47.65° W
Solar position in Planaltina
Sun position, daylight and the best solar panel angle for Planaltina — computed for 15.62° S, 47.65° W, 1000 m above sea level.
The sun right now
Sun in Planaltina today
Saturday, 24 October 2026 · local time UTC−3
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:23 | sun 18° below horizon |
| Nautical dawn | 04:50 | 12° below |
| Civil dawn | 05:15 | 6° below |
| Sunrise | 05:37 | 103° ESE |
| Golden hour ends | 06:06 | sun 6° up |
| Solar noon | 11:54 | 86.3° high |
| Golden hour starts | 17:42 | sun 6° up |
| Sunset | 18:11 | 257° WSW |
| Civil dusk | 18:33 | 6° below |
| Nautical dusk | 18:59 | 12° below |
| Astronomical dusk | 19:25 | 18° below |
| Day length | 12 h 34 min | |
Sun path diagram for Planaltina
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 51.0° at solar noon in Planaltina; on the December solstice only 82.2°. 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 | 05:54 | 12:21 | 18:48 | 12 h 54 min | 85.8° |
| February | 06:08 | 12:24 | 18:39 | 12 h 30 min | 84.8° |
| March | 06:14 | 12:17 | 18:20 | 12 h 06 min | 74.0° |
| April | 06:19 | 12:09 | 17:59 | 11 h 40 min | 62.4° |
| May | 06:27 | 12:07 | 17:47 | 11 h 20 min | 54.1° |
| June | 06:36 | 12:12 | 17:48 | 11 h 12 min | 51.0° |
| July | 06:37 | 12:17 | 17:56 | 11 h 20 min | 54.0° |
| August | 06:23 | 12:13 | 18:03 | 11 h 40 min | 62.4° |
| September | 06:00 | 12:03 | 18:06 | 12 h 06 min | 73.9° |
| October | 05:39 | 11:55 | 18:11 | 12 h 32 min | 85.2° |
| November | 05:29 | 11:56 | 18:23 | 12 h 54 min | 85.6° |
| December | 05:36 | 12:08 | 18:40 | 13 h 04 min | 82.2° |
A year of daylight in Planaltina
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 Planaltina
Fixed array facing north (azimuth 0°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
19°collects the most energy over a year: 1707 kWh per kWp.
7°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° | 1625 | 95% | 4.36 | 1.3× |
| 7° off-grid best | 1673 | 98% | 4.28 | 1.2× |
| 15° | 1703 | 100% | 4.13 | 1.3× |
| 16° = latitude | 1704 | 100% | 4.11 | 1.3× |
| 19° year-round best | 1707 | 100% | 4.03 | 1.3× |
| 30° | 1681 | 99% | 3.68 | 1.5× |
| 45° | 1562 | 92% | 3.05 | 1.9× |
| 60° | 1356 | 79% | 2.28 | 2.6× |
| 70° | 1179 | 69% | 1.74 | 3.3× |
| 90° | 810 | 47% | 1.10 | 3.7× |
A fixed array in Planaltina produces the most over a year at 19°. The design month for an off-grid system is November: at 7° it makes 4.28 kWh per kWp a day, 6% more than at 19°, and costs 2% of the yearly total. Why steep panels win winter.
Off-grid solar in Planaltina at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 19° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 19° | Mean temp. |
|---|---|---|---|---|---|
| January | 5.85 | 2.06 | 1.66 | 4.28 | 23.1 °C |
| February | 5.91 | 2.67 | 2.18 | 4.54 | 22.9 °C |
| March | 5.50 | 3.40 | 2.80 | 4.50 | 22.7 °C |
| April | 5.34 | 4.50 | 3.73 | 4.74 | 22.1 °C |
| May | 4.96 | 5.33 | 4.45 | 4.76 | 20.8 °C |
| June | 4.83 | 5.93 | 4.96 | 4.87 | 20.0 °C |
| July | 5.13 | 6.09 | 5.10 | 5.12 | 20.2 °C |
| August | 5.80 | 5.62 | 4.67 | 5.39 | 22.1 °C |
| September | 6.12 | 4.28 | 3.51 | 5.15 | 24.8 °C |
| October | 5.94 | 2.94 | 2.38 | 4.62 | 25.6 °C |
| November | 5.43 | 2.16 | 1.74 | 4.03 | 23.8 °C |
| December | 5.65 | 1.90 | 1.53 | 4.08 | 23.3 °C |
| Year | 5.54 avg | 3.91 avg | 1179 kWh | 1707 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 770 Wp of panels at 70°, versus 290 Wp at 19°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Planaltina
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 19°
How Planaltina compares in Brazil
Against the other 2,263 places in Brazil with climate data, for a fixed array at its best angle.
594thof 2,264 places in Brazil for sunshine, shared: 5.54 peak sun hours a day on flat ground.
+8%solar energy a year compared with the average place in Brazil: 1,707 against 1,581 kWh per kWp.
−32 mindaylight on the longest day, compared with São Paulo: 13 h 04 min against 13 h 35 min.
19°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); Planaltina ranks joint 594th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 1.53 kWh a day here, against 1.56 kWh on average in Brazil. The shortest day lasts 11 h 12 min, +31 min compared with São Paulo.
Solar forecast for Planaltina, 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 Planaltina
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Places near Planaltina
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A free, live card for Planaltina: 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.