South Sulawesi · Indonesia · 5.12° S · 120.25° E
Solar position in Sinjai
Sun position, daylight and the best solar panel angle for Sinjai — computed for 5.12° S, 120.25° E, 6 m above sea level.
The sun right now
Sun in Sinjai today
Sunday, 25 October 2026 · local time UTC+8
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:24 | sun 18° below horizon |
| Nautical dawn | 04:49 | 12° below |
| Civil dawn | 05:14 | 6° below |
| Sunrise | 05:35 | 102° ESE |
| Golden hour ends | 06:03 | sun 6° up |
| Solar noon | 11:43 | 83.0° high |
| Golden hour starts | 17:22 | sun 6° up |
| Sunset | 17:50 | 258° WSW |
| Civil dusk | 18:12 | 6° below |
| Nautical dusk | 18:36 | 12° below |
| Astronomical dusk | 19:01 | 18° below |
| Day length | 12 h 16 min | |
Sun path diagram for Sinjai
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 61.4° at solar noon in Sinjai; on the December solstice only 71.7°. Sunrise swings from 67° ENE in June to 114° 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.
| Month | Sunrise | Solar noon | Sunset | Day length | Noon elevation |
|---|---|---|---|---|---|
| January | 05:59 | 12:10 | 18:21 | 12 h 22 min | 75.2° |
| February | 06:05 | 12:12 | 18:19 | 12 h 14 min | 84.6° |
| March | 06:03 | 12:06 | 18:09 | 12 h 06 min | 84.7° |
| April | 05:58 | 11:57 | 17:56 | 11 h 58 min | 73.0° |
| May | 05:59 | 11:55 | 17:51 | 11 h 52 min | 64.7° |
| June | 06:05 | 12:00 | 17:55 | 11 h 50 min | 61.4° |
| July | 06:09 | 12:05 | 18:01 | 11 h 52 min | 64.4° |
| August | 06:03 | 12:02 | 18:01 | 11 h 58 min | 72.8° |
| September | 05:49 | 11:52 | 17:55 | 12 h 06 min | 84.2° |
| October | 05:36 | 11:43 | 17:50 | 12 h 14 min | 84.4° |
| November | 05:33 | 11:44 | 17:55 | 12 h 22 min | 75.2° |
| December | 05:44 | 11:56 | 18:09 | 12 h 25 min | 71.7° |
A year of daylight in Sinjai
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 Sinjai
Fixed array facing north (azimuth 0°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
7°collects the most energy over a year: 1579 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 | December kWh/kWp/day | Best ÷ worst month |
|---|---|---|---|---|
| 0° | 1570 | 99% | 4.01 | 1.4× |
| 5° = latitude | 1578 | 100% | 3.90 | 1.3× |
| 7° year-round best off-grid best | 1579 | 100% | 3.85 | 1.3× |
| 15° | 1566 | 99% | 3.62 | 1.4× |
| 30° | 1474 | 93% | 3.04 | 1.6× |
| 45° | 1301 | 82% | 2.32 | 2.0× |
| 60° | 1062 | 67% | 1.56 | 2.6× |
| 70° | 885 | 56% | 1.23 | 2.9× |
| 90° | 588 | 37% | 1.10 | 2.6× |
A fixed array in Sinjai produces the most over a year at 7°. The design month for an off-grid system is December: at 7° it makes 3.85 kWh per kWp a day, and costs 0% of the yearly total. Why steep panels win winter.
Off-grid solar in Sinjai at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 7° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 7° | Mean temp. |
|---|---|---|---|---|---|
| January | 5.08 | 1.60 | 1.26 | 3.88 | 26.8 °C |
| February | 5.21 | 1.99 | 1.58 | 4.05 | 26.8 °C |
| March | 5.46 | 2.73 | 2.19 | 4.32 | 27.1 °C |
| April | 5.31 | 3.59 | 2.90 | 4.30 | 27.4 °C |
| May | 4.97 | 4.16 | 3.38 | 4.11 | 27.2 °C |
| June | 4.61 | 4.25 | 3.46 | 3.86 | 26.6 °C |
| July | 4.93 | 4.42 | 3.61 | 4.12 | 26.1 °C |
| August | 5.75 | 4.35 | 3.55 | 4.74 | 26.2 °C |
| September | 6.37 | 3.49 | 2.83 | 5.11 | 27.0 °C |
| October | 6.47 | 2.30 | 1.83 | 5.03 | 27.9 °C |
| November | 5.96 | 1.57 | 1.23 | 4.53 | 28.2 °C |
| December | 5.08 | 1.57 | 1.23 | 3.85 | 27.3 °C |
| Year | 5.43 avg | 3.01 avg | 885 kWh | 1579 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 960 Wp of panels at 70°, versus 310 Wp at 7°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Sinjai
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.
1.8 mrow pitch at 70°
2.1 mrow pitch at 7°
How Sinjai compares in Indonesia
Against the other 446 places in Indonesia with climate data, for a fixed array at its best angle.
76thof 447 places in Indonesia for sunshine, shared: 5.43 peak sun hours a day on flat ground.
+5%solar energy a year compared with the average place in Indonesia: 1,579 against 1,498 kWh per kWp.
−4 mindaylight on the longest day, compared with Jakarta: 12 h 25 min against 12 h 29 min.
7°best year-round tilt here; across Indonesia it runs from 0° in Batam to 12° in Kupang.
Of the 447 places in Indonesia, Lewoleba gets the most sun (5.95 peak sun hours a day) and Kuala Tungkal the least (4.48); Sinjai ranks joint 76th. In its darkest month, November, 1 kWp of off-grid panels at 70° makes 1.23 kWh a day here, against 1.26 kWh on average in Indonesia. The shortest day lasts 11 h 50 min, +4 min compared with Jakarta.
Solar forecast for Sinjai, 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 Sinjai
What is the best solar panel angle in Sinjai?
What time is sunrise and sunset in Sinjai today?
How many peak sun hours does Sinjai get?
How high does the sun get in Sinjai?
Is Sinjai a good place for solar panels?
Places near Sinjai
Put this on your site
A free, live card for Sinjai: 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.