Goiás · Brazil · 17.88° S · 51.72° W
Solar position in Jataí
Sun position, daylight and the best solar panel angle for Jataí — computed for 17.88° S, 51.72° W, 741 m above sea level.
The sun right now
Sun in Jataí today
Saturday, 24 October 2026 · local time UTC−3
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:37 | sun 18° below horizon |
| Nautical dawn | 05:03 | 12° below |
| Civil dawn | 05:29 | 6° below |
| Sunrise | 05:52 | 103° ESE |
| Golden hour ends | 06:21 | sun 6° up |
| Solar noon | 12:11 | 84.0° high |
| Golden hour starts | 18:00 | sun 6° up |
| Sunset | 18:30 | 257° WSW |
| Civil dusk | 18:52 | 6° below |
| Nautical dusk | 19:18 | 12° below |
| Astronomical dusk | 19:45 | 18° below |
| Day length | 12 h 38 min | |
Sun path diagram for Jataí
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 48.7° at solar noon in Jataí; on the December solstice only 84.4°. 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 | 06:07 | 12:38 | 19:08 | 13 h 01 min | 88.1° |
| February | 06:23 | 12:40 | 18:57 | 12 h 34 min | 82.5° |
| March | 06:30 | 12:33 | 18:36 | 12 h 06 min | 71.7° |
| April | 06:37 | 12:25 | 18:13 | 11 h 36 min | 60.1° |
| May | 06:47 | 12:23 | 17:59 | 11 h 13 min | 51.9° |
| June | 06:57 | 12:28 | 18:00 | 11 h 03 min | 48.7° |
| July | 06:57 | 12:33 | 18:09 | 11 h 12 min | 51.8° |
| August | 06:42 | 12:30 | 18:17 | 11 h 36 min | 60.2° |
| September | 06:17 | 12:19 | 18:22 | 12 h 05 min | 71.6° |
| October | 05:53 | 12:11 | 18:29 | 12 h 35 min | 83.0° |
| November | 05:42 | 12:12 | 18:43 | 13 h 02 min | 87.9° |
| December | 05:48 | 12:25 | 19:01 | 13 h 12 min | 84.4° |
A year of daylight in Jataí
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 Jataí
Fixed array facing north (azimuth 0°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
21°collects the most energy over a year: 1664 kWh per kWp.
14°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 | January kWh/kWp/day | Best ÷ worst month |
|---|---|---|---|---|
| 0° | 1570 | 94% | 4.60 | 1.3× |
| 14° off-grid best | 1654 | 99% | 4.37 | 1.1× |
| 15° | 1656 | 100% | 4.34 | 1.1× |
| 18° = latitude | 1662 | 100% | 4.26 | 1.2× |
| 21° year-round best | 1664 | 100% | 4.17 | 1.2× |
| 30° | 1647 | 99% | 3.85 | 1.4× |
| 45° | 1542 | 93% | 3.16 | 1.7× |
| 60° | 1350 | 81% | 2.34 | 2.3× |
| 70° | 1183 | 71% | 1.77 | 3.0× |
| 90° | 822 | 49% | 1.12 | 3.6× |
A fixed array in Jataí produces the most over a year at 21°. The design month for an off-grid system is January: at 14° it makes 4.37 kWh per kWp a day, 5% more than at 21°, and costs 1% of the yearly total. Why steep panels win winter.
Off-grid solar in Jataí at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 21° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 21° | Mean temp. |
|---|---|---|---|---|---|
| January | 5.73 | 2.20 | 1.77 | 4.17 | 23.9 °C |
| February | 5.72 | 2.78 | 2.26 | 4.39 | 23.8 °C |
| March | 5.55 | 3.59 | 2.95 | 4.56 | 23.6 °C |
| April | 5.24 | 4.63 | 3.83 | 4.73 | 22.9 °C |
| May | 4.71 | 5.29 | 4.42 | 4.65 | 20.6 °C |
| June | 4.47 | 5.70 | 4.77 | 4.64 | 20.1 °C |
| July | 4.78 | 5.90 | 4.93 | 4.90 | 20.3 °C |
| August | 5.41 | 5.46 | 4.53 | 5.13 | 22.5 °C |
| September | 5.60 | 4.11 | 3.36 | 4.76 | 25.4 °C |
| October | 5.59 | 3.02 | 2.45 | 4.36 | 26.0 °C |
| November | 5.74 | 2.35 | 1.89 | 4.23 | 24.6 °C |
| December | 5.83 | 2.08 | 1.67 | 4.18 | 24.2 °C |
| Year | 5.36 avg | 3.93 avg | 1183 kWh | 1664 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 280 Wp at 21°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Jataí
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.
2.5 mrow pitch at 70°
2.6 mrow pitch at 21°
How Jataí compares in Brazil
Against the other 2,263 places in Brazil with climate data, for a fixed array at its best angle.
841stof 2,264 places in Brazil for sunshine, shared: 5.36 peak sun hours a day on flat ground.
+5%solar energy a year compared with the average place in Brazil: 1,664 against 1,581 kWh per kWp.
−23 mindaylight on the longest day, compared with São Paulo: 13 h 12 min against 13 h 35 min.
21°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); Jataí ranks joint 841st. 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 03 min, +22 min compared with São Paulo.
Solar forecast for Jataí, 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 Jataí
What is the best solar panel angle in Jataí?
What time is sunrise and sunset in Jataí today?
How many peak sun hours does Jataí get?
How high does the sun get in Jataí?
Is Jataí a good place for solar panels?
Places near Jataí
Put this on your site
A free, live card for Jataí: 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.