Minas Gerais · Brazil · 18.78° S · 42.93° W
Solar position in Guanhães
Sun position, daylight and the best solar panel angle for Guanhães — computed for 18.78° S, 42.93° W, 773 m above sea level.
The sun right now
Sun in Guanhães today
Saturday, 24 October 2026 · local time UTC−3
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:00 | sun 18° below horizon |
| Nautical dawn | 04:27 | 12° below |
| Civil dawn | 04:53 | 6° below |
| Sunrise | 05:16 | 103° ESE |
| Golden hour ends | 05:45 | sun 6° up |
| Solar noon | 11:35 | 83.1° high |
| Golden hour starts | 17:26 | sun 6° up |
| Sunset | 17:56 | 257° WSW |
| Civil dusk | 18:18 | 6° below |
| Nautical dusk | 18:44 | 12° below |
| Astronomical dusk | 19:11 | 18° below |
| Day length | 12 h 40 min | |
Sun path diagram for Guanhães
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 47.8° at solar noon in Guanhães; on the December solstice only 85.3°. Sunrise swings from 65° ENE in June to 115° ESE in December — a 50° 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 | 05:30 | 12:03 | 18:34 | 13 h 04 min | 89.0° |
| February | 05:47 | 12:05 | 18:23 | 12 h 36 min | 81.6° |
| March | 05:55 | 11:58 | 18:01 | 12 h 06 min | 70.8° |
| April | 06:03 | 11:50 | 17:37 | 11 h 34 min | 59.2° |
| May | 06:13 | 11:48 | 17:23 | 11 h 10 min | 51.0° |
| June | 06:23 | 11:53 | 17:23 | 11 h 00 min | 47.8° |
| July | 06:23 | 11:58 | 17:33 | 11 h 10 min | 50.9° |
| August | 06:07 | 11:54 | 17:41 | 11 h 34 min | 59.3° |
| September | 05:42 | 11:44 | 17:47 | 12 h 05 min | 70.7° |
| October | 05:18 | 11:36 | 17:54 | 12 h 37 min | 82.1° |
| November | 05:05 | 11:37 | 18:09 | 13 h 05 min | 88.8° |
| December | 05:11 | 11:49 | 18:27 | 13 h 16 min | 85.3° |
A year of daylight in Guanhães
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 Guanhães
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: 1528 kWh per kWp.
21°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 | June kWh/kWp/day | Best ÷ worst month |
|---|---|---|---|---|
| 0° | 1457 | 95% | 3.04 | 1.6× |
| 15° | 1524 | 100% | 3.66 | 1.3× |
| 19° year-round best = latitude | 1528 | 100% | 3.79 | 1.2× |
| 21° off-grid best | 1527 | 100% | 3.85 | 1.2× |
| 30° | 1505 | 99% | 4.06 | 1.3× |
| 45° | 1401 | 92% | 4.21 | 1.5× |
| 60° | 1220 | 80% | 4.10 | 1.9× |
| 70° | 1065 | 70% | 3.89 | 2.4× |
| 90° | 734 | 48% | 3.16 | 2.9× |
A fixed array in Guanhães produces the most over a year at 19°. The design month for an off-grid system is June: at 21° it makes 3.85 kWh per kWp a day, 2% more than at 19°, and costs 0% of the yearly total. Why steep panels win winter.
Off-grid solar in Guanhães 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 | 5.95 | 2.27 | 1.84 | 4.42 | 23.1 °C |
| February | 5.94 | 2.89 | 2.36 | 4.63 | 23.0 °C |
| March | 5.26 | 3.48 | 2.87 | 4.36 | 22.7 °C |
| April | 4.67 | 4.11 | 3.42 | 4.18 | 21.9 °C |
| May | 3.99 | 4.34 | 3.63 | 3.83 | 20.2 °C |
| June | 3.78 | 4.63 | 3.89 | 3.79 | 19.4 °C |
| July | 4.01 | 4.77 | 4.01 | 3.99 | 19.2 °C |
| August | 4.66 | 4.63 | 3.87 | 4.37 | 20.4 °C |
| September | 5.14 | 3.83 | 3.17 | 4.41 | 22.5 °C |
| October | 5.40 | 2.96 | 2.42 | 4.30 | 23.8 °C |
| November | 5.11 | 2.27 | 1.84 | 3.87 | 22.9 °C |
| December | 5.58 | 2.07 | 1.67 | 4.11 | 22.9 °C |
| Year | 4.95 avg | 3.52 avg | 1065 kWh | 1528 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 710 Wp of panels at 70°, versus 310 Wp at 19°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Guanhães
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.
2.6 mrow pitch at 70°
2.6 mrow pitch at 19°
How Guanhães compares in Brazil
Against the other 2,263 places in Brazil with climate data, for a fixed array at its best angle.
1562ndof 2,264 places in Brazil for sunshine, shared: 4.95 peak sun hours a day on flat ground.
−3%solar energy a year compared with the average place in Brazil: 1,528 against 1,581 kWh per kWp.
−20 mindaylight on the longest day, compared with São Paulo: 13 h 16 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); Guanhães ranks joint 1562nd. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 1.67 kWh a day here, against 1.56 kWh on average in Brazil. The shortest day lasts 11 h 00 min, +19 min compared with São Paulo.
Solar forecast for Guanhães, 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 Guanhães
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Places near Guanhães
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A free, live card for Guanhães: 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.