Dong Nai · Vietnam · 10.95° N · 107.01° E
Solar position in Trảng Bom
Sun position, daylight and the best solar panel angle for Trảng Bom — computed for 10.95° N, 107.01° E, 61 m above sea level.
The sun right now
Sun in Trảng Bom today
Sunday, 25 October 2026 · local time UTC+7
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:30 | sun 18° below horizon |
| Nautical dawn | 04:55 | 12° below |
| Civil dawn | 05:20 | 6° below |
| Sunrise | 05:42 | 102° ESE |
| Golden hour ends | 06:10 | sun 6° up |
| Solar noon | 11:36 | 67.0° high |
| Golden hour starts | 17:01 | sun 6° up |
| Sunset | 17:29 | 258° WSW |
| Civil dusk | 17:51 | 6° below |
| Nautical dusk | 18:16 | 12° below |
| Astronomical dusk | 18:41 | 18° below |
| Day length | 11 h 48 min | |
Sun path diagram for Trảng Bom
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 77.5° at solar noon in Trảng Bom; on the December solstice only 55.6°. 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 | 06:15 | 12:03 | 17:50 | 11 h 35 min | 59.2° |
| February | 06:10 | 12:05 | 18:00 | 11 h 50 min | 68.5° |
| March | 05:55 | 11:59 | 18:02 | 12 h 07 min | 79.3° |
| April | 05:38 | 11:50 | 18:03 | 12 h 25 min | 89.1° |
| May | 05:28 | 11:48 | 18:08 | 12 h 40 min | 80.8° |
| June | 05:30 | 11:53 | 18:16 | 12 h 46 min | 77.5° |
| July | 05:38 | 11:58 | 18:18 | 12 h 40 min | 80.5° |
| August | 05:42 | 11:55 | 18:08 | 12 h 26 min | 88.8° |
| September | 05:41 | 11:45 | 17:48 | 12 h 08 min | 79.8° |
| October | 05:41 | 11:36 | 17:31 | 11 h 50 min | 68.4° |
| November | 05:50 | 11:37 | 17:25 | 11 h 35 min | 59.1° |
| December | 06:05 | 11:49 | 17:34 | 11 h 29 min | 55.6° |
A year of daylight in Trảng Bom
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 Trảng Bom
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
12°collects the most energy over a year: 1538 kWh per kWp.
4°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 | July kWh/kWp/day | Best ÷ worst month |
|---|---|---|---|---|
| 0° | 1511 | 98% | 3.91 | 1.3× |
| 4° off-grid best | 1526 | 99% | 3.86 | 1.3× |
| 11° = latitude | 1538 | 100% | 3.73 | 1.3× |
| 12° year-round best | 1538 | 100% | 3.71 | 1.4× |
| 15° | 1536 | 100% | 3.64 | 1.4× |
| 30° | 1477 | 96% | 3.17 | 1.6× |
| 45° | 1337 | 87% | 2.55 | 2.0× |
| 60° | 1128 | 73% | 1.84 | 2.6× |
| 70° | 962 | 63% | 1.38 | 3.2× |
| 90° | 656 | 43% | 1.09 | 3.0× |
A fixed array in Trảng Bom produces the most over a year at 12°. The design month for an off-grid system is July: at 4° it makes 3.86 kWh per kWp a day, 4% more than at 12°, and costs 1% of the yearly total. Why steep panels win winter.
Off-grid solar in Trảng Bom at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 12° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 12° | Mean temp. |
|---|---|---|---|---|---|
| January | 5.14 | 5.06 | 4.14 | 4.50 | 25.9 °C |
| February | 5.92 | 4.86 | 3.95 | 5.01 | 27.1 °C |
| March | 6.12 | 3.81 | 3.07 | 4.93 | 28.7 °C |
| April | 6.09 | 2.62 | 2.08 | 4.68 | 29.6 °C |
| May | 5.46 | 1.88 | 1.47 | 4.09 | 28.8 °C |
| June | 5.03 | 1.66 | 1.30 | 3.74 | 27.4 °C |
| July | 4.94 | 1.76 | 1.38 | 3.71 | 26.7 °C |
| August | 4.91 | 2.13 | 1.69 | 3.78 | 26.6 °C |
| September | 4.83 | 2.77 | 2.23 | 3.83 | 26.6 °C |
| October | 4.91 | 3.58 | 2.91 | 4.05 | 26.5 °C |
| November | 4.85 | 4.41 | 3.60 | 4.17 | 26.3 °C |
| December | 4.72 | 4.75 | 3.89 | 4.14 | 25.7 °C |
| Year | 5.24 avg | 3.26 avg | 962 kWh | 1538 kWh |
Sizing example. To run a 1 kWh-per-day load through June on LiFePO4 batteries (charge controller, battery and inverter losses included) you need about 910 Wp of panels at 70°, versus 320 Wp at 12°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Trảng Bom
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.
2.1 mrow pitch at 70°
2.3 mrow pitch at 12°
How Trảng Bom compares in Vietnam
Against the other 306 places in Vietnam with climate data, for a fixed array at its best angle.
28thof 307 places in Vietnam for sunshine, shared: 5.24 peak sun hours a day on flat ground.
+16%solar energy a year compared with the average place in Vietnam: 1,538 against 1,320 kWh per kWp.
±0 mindaylight on the longest day, compared with Ho Chi Minh City: 12 h 46 min against 12 h 46 min.
12°best year-round tilt here; across Vietnam it runs from 9° in Vĩnh Châu to 21° in Dien Bien Phu.
Of the 307 places in Vietnam, Phú Quý gets the most sun (5.45 peak sun hours a day) and Thị Trấn Thất Khê and one other place the least (3.61); Trảng Bom ranks joint 28th. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 1.30 kWh a day here, against 1.53 kWh on average in Vietnam. The shortest day lasts 11 h 29 min, ±0 min compared with Ho Chi Minh City.
Solar forecast for Trảng Bom, 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 Trảng Bom
What is the best solar panel angle in Trảng Bom?
What time is sunrise and sunset in Trảng Bom today?
How many peak sun hours does Trảng Bom get?
How high does the sun get in Trảng Bom?
Is Trảng Bom a good place for solar panels?
Places near Trảng Bom
Put this on your site
A free, live card for Trảng Bom: 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.