Sylhet Division · Bangladesh · 24.52° N · 91.36° E
Solar position in Baniachang
Sun position, daylight and the best solar panel angle for Baniachang — computed for 24.52° N, 91.36° E, 14 m above sea level.
The sun right now
Sun in Baniachang today
Sunday, 25 October 2026 · local time UTC+6
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:40 | sun 18° below horizon |
| Nautical dawn | 05:07 | 12° below |
| Civil dawn | 05:34 | 6° below |
| Sunrise | 05:57 | 103° ESE |
| Golden hour ends | 06:28 | sun 6° up |
| Solar noon | 11:38 | 53.4° high |
| Golden hour starts | 16:48 | sun 6° up |
| Sunset | 17:19 | 257° WSW |
| Civil dusk | 17:42 | 6° below |
| Nautical dusk | 18:09 | 12° below |
| Astronomical dusk | 18:36 | 18° below |
| Day length | 11 h 23 min | |
Sun path diagram for Baniachang
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 88.9° at solar noon in Baniachang; on the December solstice only 42.1°. Sunrise swings from 64° ENE in June to 116° ESE in December — a 52° 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 | 06:39 | 12:05 | 17:31 | 10 h 52 min | 45.6° |
| February | 06:24 | 12:08 | 17:52 | 11 h 28 min | 55.0° |
| March | 05:57 | 12:01 | 18:06 | 12 h 08 min | 65.7° |
| April | 05:27 | 11:53 | 18:19 | 12 h 51 min | 77.4° |
| May | 05:08 | 11:51 | 18:33 | 13 h 25 min | 85.7° |
| June | 05:06 | 11:56 | 18:46 | 13 h 39 min | 88.9° |
| July | 05:17 | 12:01 | 18:44 | 13 h 26 min | 85.9° |
| August | 05:31 | 11:57 | 18:23 | 12 h 52 min | 77.6° |
| September | 05:42 | 11:47 | 17:52 | 12 h 10 min | 66.2° |
| October | 05:55 | 11:39 | 17:22 | 11 h 28 min | 54.8° |
| November | 06:14 | 11:40 | 17:06 | 10 h 52 min | 45.6° |
| December | 06:33 | 11:52 | 17:11 | 10 h 37 min | 42.1° |
A year of daylight in Baniachang
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 Baniachang
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
27°collects the most energy over a year: 1445 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 | June kWh/kWp/day | Best ÷ worst month |
|---|---|---|---|---|
| 0° | 1316 | 91% | 3.40 | 1.4× |
| 7° off-grid best | 1373 | 95% | 3.37 | 1.3× |
| 15° | 1419 | 98% | 3.30 | 1.4× |
| 25° = latitude | 1444 | 100% | 3.14 | 1.5× |
| 27° year-round best | 1445 | 100% | 3.10 | 1.5× |
| 30° | 1444 | 100% | 3.03 | 1.6× |
| 45° | 1389 | 96% | 2.63 | 1.9× |
| 60° | 1260 | 87% | 2.12 | 2.3× |
| 70° | 1136 | 79% | 1.74 | 2.6× |
| 90° | 829 | 57% | 1.13 | 3.3× |
A fixed array in Baniachang produces the most over a year at 27°. The design month for an off-grid system is June: at 7° it makes 3.37 kWh per kWp a day, 9% more than at 27°, and costs 5% of the yearly total. Why steep panels win winter.
Off-grid solar in Baniachang at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 27° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 27° | Mean temp. |
|---|---|---|---|---|---|
| January | 3.86 | 4.96 | 4.19 | 4.19 | 17.3 °C |
| February | 4.74 | 5.01 | 4.18 | 4.67 | 20.7 °C |
| March | 5.30 | 4.30 | 3.52 | 4.59 | 25.4 °C |
| April | 5.37 | 3.36 | 2.70 | 4.17 | 27.9 °C |
| May | 5.07 | 2.63 | 2.10 | 3.70 | 28.4 °C |
| June | 4.34 | 2.21 | 1.74 | 3.10 | 28.2 °C |
| July | 4.46 | 2.35 | 1.87 | 3.22 | 28.1 °C |
| August | 4.62 | 2.74 | 2.19 | 3.48 | 28.0 °C |
| September | 4.38 | 3.16 | 2.54 | 3.54 | 27.5 °C |
| October | 4.42 | 4.16 | 3.40 | 4.05 | 25.8 °C |
| November | 4.33 | 5.51 | 4.57 | 4.63 | 22.1 °C |
| December | 3.74 | 5.25 | 4.42 | 4.23 | 18.6 °C |
| Year | 4.55 avg | 3.79 avg | 1136 kWh | 1445 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 680 Wp of panels at 70°, versus 380 Wp at 27°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Baniachang
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.
3.0 mrow pitch at 70°
2.9 mrow pitch at 27°
How Baniachang compares in Bangladesh
Against the other 132 places in Bangladesh with climate data, for a fixed array at its best angle.
53rdof 133 places in Bangladesh for sunshine, shared: 4.55 peak sun hours a day on flat ground.
+1%solar energy a year compared with the average place in Bangladesh: 1,445 against 1,428 kWh per kWp.
+3 mindaylight on the longest day, compared with Dhaka: 13 h 39 min against 13 h 36 min.
27°best year-round tilt here; across Bangladesh it runs from 23° in Taluker Char Doani to 28° in Sylhet.
Of the 133 places in Bangladesh, Hāthazāri and one other place get the most sun (4.91 peak sun hours a day) and Panchagarh the least (4.36); Baniachang ranks joint 53rd. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 1.74 kWh a day here, against 1.76 kWh on average in Bangladesh. The shortest day lasts 10 h 37 min, −3 min compared with Dhaka.
Solar forecast for Baniachang, 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 Baniachang
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A free, live card for Baniachang: 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.