Cova Lima · Timor Leste · 9.31° S · 125.26° E
Solar position in Suai
Sun position, daylight and the best solar panel angle for Suai — computed for 9.31° S, 125.26° E, 73 m above sea level.
The sun right now
Sun in Suai today
Sunday, 25 October 2026 · local time UTC+9
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:59 | sun 18° below horizon |
| Nautical dawn | 05:25 | 12° below |
| Civil dawn | 05:50 | 6° below |
| Sunrise | 06:11 | 102° ESE |
| Golden hour ends | 06:39 | sun 6° up |
| Solar noon | 12:23 | 87.2° high |
| Golden hour starts | 18:06 | sun 6° up |
| Sunset | 18:34 | 258° WSW |
| Civil dusk | 18:56 | 6° below |
| Nautical dusk | 19:21 | 12° below |
| Astronomical dusk | 19:46 | 18° below |
| Day length | 12 h 23 min | |
Sun path diagram for Suai
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 57.3° at solar noon in Suai; on the December solstice only 75.9°. Sunrise swings from 66° ENE in June to 114° ESE in December — a 48° 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 | 06:32 | 12:50 | 19:07 | 12 h 35 min | 79.4° |
| February | 06:42 | 12:52 | 19:02 | 12 h 21 min | 88.7° |
| March | 06:42 | 12:46 | 18:49 | 12 h 06 min | 80.5° |
| April | 06:42 | 12:37 | 18:33 | 11 h 51 min | 68.9° |
| May | 06:45 | 12:35 | 18:25 | 11 h 40 min | 60.5° |
| June | 06:53 | 12:40 | 18:28 | 11 h 35 min | 57.3° |
| July | 06:55 | 12:45 | 18:35 | 11 h 39 min | 60.2° |
| August | 06:46 | 12:42 | 18:37 | 11 h 51 min | 68.6° |
| September | 06:29 | 12:32 | 18:35 | 12 h 06 min | 80.0° |
| October | 06:13 | 12:23 | 18:34 | 12 h 21 min | 88.6° |
| November | 06:07 | 12:24 | 18:42 | 12 h 35 min | 79.4° |
| December | 06:16 | 12:36 | 18:56 | 12 h 40 min | 75.9° |
A year of daylight in Suai
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 Suai
Fixed array facing north (azimuth 0°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
10°collects the most energy over a year: 1696 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 | June kWh/kWp/day | Best ÷ worst month |
|---|---|---|---|---|
| 0° | 1672 | 99% | 3.60 | 1.5× |
| 9° = latitude | 1696 | 100% | 3.94 | 1.4× |
| 10° year-round best | 1696 | 100% | 3.97 | 1.4× |
| 14° off-grid best | 1693 | 100% | 4.09 | 1.3× |
| 15° | 1692 | 100% | 4.11 | 1.3× |
| 30° | 1613 | 95% | 4.38 | 1.5× |
| 45° | 1442 | 85% | 4.38 | 1.9× |
| 60° | 1192 | 70% | 4.12 | 2.6× |
| 70° | 998 | 59% | 3.81 | 3.3× |
| 90° | 658 | 39% | 2.88 | 3.3× |
A fixed array in Suai produces the most over a year at 10°. The design month for an off-grid system is June: at 14° it makes 4.09 kWh per kWp a day, 3% more than at 10°, and costs 0% of the yearly total. Why steep panels win winter.
Off-grid solar in Suai at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 10° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 10° | Mean temp. |
|---|---|---|---|---|---|
| January | 5.60 | 1.76 | 1.38 | 4.21 | 27.3 °C |
| February | 5.77 | 2.23 | 1.78 | 4.45 | 27.1 °C |
| March | 5.71 | 3.06 | 2.47 | 4.55 | 27.1 °C |
| April | 5.67 | 4.18 | 3.40 | 4.69 | 27.1 °C |
| May | 4.95 | 4.57 | 3.73 | 4.23 | 26.6 °C |
| June | 4.55 | 4.65 | 3.81 | 3.97 | 25.6 °C |
| July | 4.96 | 4.93 | 4.05 | 4.33 | 24.9 °C |
| August | 5.94 | 4.97 | 4.09 | 5.07 | 24.9 °C |
| September | 6.72 | 4.05 | 3.30 | 5.48 | 25.9 °C |
| October | 6.96 | 2.69 | 2.16 | 5.41 | 27.3 °C |
| November | 6.73 | 1.72 | 1.35 | 5.04 | 28.3 °C |
| December | 5.83 | 1.60 | 1.25 | 4.33 | 28.0 °C |
| Year | 5.78 avg | 3.37 avg | 998 kWh | 1696 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 940 Wp of panels at 70°, versus 300 Wp at 10°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Suai
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.
2.0 mrow pitch at 70°
2.2 mrow pitch at 10°
How Suai compares in Timor Leste
Against the other 9 places in Timor Leste with climate data, for a fixed array at its best angle.
1stof 10 places in Timor Leste for sunshine: 5.78 peak sun hours a day on flat ground.
+1%solar energy a year compared with the average place in Timor Leste: 1,696 against 1,673 kWh per kWp.
+3 mindaylight on the longest day, compared with Dili: 12 h 40 min against 12 h 38 min.
10°best year-round tilt here; across Timor Leste it runs from 9° in Lospalos to 11° in Maubara.
Suai gets the most sun of the 10 places in Timor Leste (5.78 peak sun hours a day); the least sunny is Baukau with 5.61. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 1.25 kWh a day here, against 1.26 kWh on average in Timor Leste. The shortest day lasts 11 h 35 min, −3 min compared with Dili.
Solar forecast for Suai, 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 Suai
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Places near Suai
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A free, live card for Suai: 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.