Solarposition.org

Luang Prabang Province · Laos · 19.89° N · 102.15° E

Solar position in Luang Prabang

Sun position, daylight and the best solar panel angle for Luang Prabang — computed for 19.89° N, 102.15° E, 296 m above sea level.

Sunrise today06:09102° ESE
Sunset today17:41257° WSW
Best panel angle22°year-round, facing south
Off-grid angle4°best for the darkest month

The sun right now

Azimuth180.0°
Elevation58.0°
At solar noon, 11:55Open on the sun map

Sun in Luang Prabang today

Sunday, 25 October 2026 · local time UTC+7

EventTimeDirection / height
Astronomical dawn04:55sun 18° below horizon
Nautical dawn05:2112° below
Civil dawn05:476° below
Sunrise06:09102° ESE
Golden hour ends06:39sun 6° up
Solar noon11:5558.0° high
Golden hour starts17:11sun 6° up
Sunset17:41257° WSW
Civil dusk18:036° below
Nautical dusk18:2912° below
Astronomical dusk18:5518° below
Day length11 h 32 min

Sun path diagram for Luang Prabang

Where the sun stands in the sky: the centre is straight overhead, the outer ring is the horizon. Numbers mark local clock hours.

15°30°45°60°75°N30°60°E120°150°S210°240°W300°330°June solstice6789101112131415161718EquinoxDecember solstice7891011121314151617Today
  • June solstice
  • Equinox
  • December solstice
  • Today

On the June solstice the sun reaches 86.5° at solar noon in Luang Prabang; on the December solstice only 46.7°. Sunrise swings from 65° ENE in June to 115° ESE in December — a 50° 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.

MonthSunriseSolar noonSunsetDay lengthNoon elevation
January06:4812:2217:5611 h 07 min50.2°
February06:3712:2518:1311 h 36 min59.6°
March06:1412:1818:2212 h 08 min70.4°
April05:4912:1018:3112 h 42 min82.0°
May05:3312:0718:4213 h 09 min89.7°
June05:3312:1318:5313 h 20 min86.5°
July05:4212:1718:5213 h 10 min89.4°
August05:5312:1418:3512 h 43 min82.2°
September05:5912:0418:0812 h 09 min70.8°
October06:0811:5517:4311 h 36 min59.4°
November06:2311:5717:3011 h 07 min50.2°
December06:4112:0917:3710 h 56 min46.7°

A year of daylight in Luang Prabang

Each column is one day of 2026. Bright: sun above the horizon; soft: civil twilight; line: solar noon. Steps are daylight saving time changes.

00:0003:0006:0009:0012:0015:0018:0021:0000:00JanFebMarAprMayJunJulAugSepOctNovDec

Best solar panel angle in Luang Prabang

Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.

22°collects the most energy over a year: 1422 kWh per kWp.

4°gives the most in the darkest month — the one an off-grid system is sized for.

30%40%50%60%70%80%90%100%0°10°20°30°40°50°60°70°80°90°Best year-round 22°Best worst-month 4°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearJuly kWh/kWp/dayBest ÷ worst month
0°134394%3.371.4×
4° off-grid best136996%3.351.3×
15°141499%3.251.4×
20° = latitude1421100%3.171.4×
22° year-round best1422100%3.141.5×
30°141099%2.971.6×
45°133094%2.571.8×
60°118183%2.052.1×
70°104874%1.682.4×
90°74853%1.152.8×

A fixed array in Luang Prabang produces the most over a year at 22°. The design month for an off-grid system is July: at 4° it makes 3.35 kWh per kWp a day, 7% more than at 22°, and costs 4% of the yearly total. Why steep panels win winter.

Off-grid solar in Luang Prabang at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 22° (year-round best).

012345January: 4.03 (70°)4.0JanFebruary: 3.92 (70°)3.9FebMarch: 3.09 (70°)3.1MarApril: 2.51 (70°)2.5AprMay: 2.00 (70°)2.0MayJune: 1.76 (70°)1.8JunJuly: 1.68 (70°)1.7JulAugust: 1.94 (70°)1.9AugSeptember: 2.53 (70°)2.5SepOctober: 3.10 (70°)3.1OctNovember: 3.98 (70°)4.0NovDecember: 4.00 (70°)4.0Dec22°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 22°Mean temp.
January4.124.784.034.1518.0 °C
February4.914.693.924.5720.5 °C
March5.063.753.094.2723.1 °C
April5.453.092.514.2625.3 °C
May5.252.482.003.9025.6 °C
June4.602.201.763.3825.1 °C
July4.232.101.683.1424.2 °C
August4.242.391.943.2523.9 °C
September4.623.102.533.7523.9 °C
October4.453.763.103.9122.8 °C
November4.324.763.984.2320.5 °C
December3.904.744.004.0017.7 °C
Year4.59 avg3.48 avg1048 kWh1422 kWh

Sizing example. To run a 1 kWh-per-day load through July on LiFePO4 batteries (charge controller, battery and inverter losses included) you need about 700 Wp of panels at 70°, versus 380 Wp at 22°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.

Row spacing in Luang Prabang

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.

2.7 mrow pitch at 70°

2.6 mrow pitch at 22°

Row spacing calculator

How Luang Prabang compares in Laos

Against the other 17 places in Laos with climate data, for a fixed array at its best angle.

15thof 18 places in Laos for sunshine: 4.59 peak sun hours a day on flat ground.

−2%solar energy a year compared with the average place in Laos: 1,422 against 1,448 kWh per kWp.

+8 mindaylight on the longest day, compared with Vientiane: 13 h 20 min against 13 h 12 min.

22°best year-round tilt here; across Laos it runs from 18° in Pakse to 23° in Ban Khoan.

Of the 18 places in Laos, Pakse gets the most sun (5.00 peak sun hours a day) and Xam Nua the least (4.19); Luang Prabang ranks 15th. In its darkest month, July, 1 kWp of off-grid panels at 70° makes 1.68 kWh a day here, against 1.63 kWh on average in Laos. The shortest day lasts 10 h 56 min, −7 min compared with Vientiane.

The sunniest places in Laos

Solar forecast for Luang Prabang, 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 Luang Prabang

What is the best solar panel angle in Luang Prabang?
For a fixed array facing south, the best year-round tilt in Luang Prabang is 22°, worth about 1422 kWh per kWp a year. An off-grid system that has to get through July does better at about 4°.
What time is sunrise and sunset in Luang Prabang today?
On 25 October 2026 the sun rises at 06:09 and sets at 17:41 local time (UTC+7), giving 11 h 32 min of daylight. Solar noon is at 11:55.
How many peak sun hours does Luang Prabang get?
On a flat surface 4.6 hours a day averaged over the year, from 3.9 in December to 5.4 in April. Panels tilted at 70° receive 2.1 sun hours a day in July.
How high does the sun get in Luang Prabang?
At solar noon the sun stands 86.5° above the horizon on the June solstice and 46.7° on the December solstice.
Is Luang Prabang a good place for solar panels?
With 4.6 peak sun hours a day on flat ground, Luang Prabang ranks 15th of 18 places in Laos for sunshine. A 1 kWp array at the best angle (22°) makes about 1,422 kWh a year here, 2% less than the average place in Laos.

Places near Luang Prabang

All places in Laos

Put this on your site

A free, live card for Luang Prabang: 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.

Theme

Paste it into any page, blog or CMS that accepts HTML. Auto follows the visitor's light or dark system setting. Free to use with its link.

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.