La Paz Department · Bolivia · 16.53° S · 68.38° W
Solar position in Laja
Sun position, daylight and the best solar panel angle for Laja — computed for 16.53° S, 68.38° W, 3856 m above sea level.
The sun right now
Sun in Laja today
Saturday, 24 October 2026 · local time UTC−4
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:45 | sun 18° below horizon |
| Nautical dawn | 05:11 | 12° below |
| Civil dawn | 05:37 | 6° below |
| Sunrise | 05:59 | 103° ESE |
| Golden hour ends | 06:29 | sun 6° up |
| Solar noon | 12:17 | 85.4° high |
| Golden hour starts | 18:06 | sun 6° up |
| Sunset | 18:35 | 257° WSW |
| Civil dusk | 18:57 | 6° below |
| Nautical dusk | 19:23 | 12° below |
| Astronomical dusk | 19:50 | 18° below |
| Day length | 12 h 36 min | |
Sun path diagram for Laja
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 50.0° at solar noon in Laja; on the December solstice only 83.1°. Sunrise swings from 66° ENE in June to 115° ESE in December — a 49° 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 | 06:16 | 12:44 | 19:13 | 12 h 57 min | 86.7° |
| February | 06:30 | 12:47 | 19:02 | 12 h 32 min | 83.8° |
| March | 06:37 | 12:40 | 18:43 | 12 h 06 min | 73.0° |
| April | 06:43 | 12:32 | 18:21 | 11 h 38 min | 61.4° |
| May | 06:51 | 12:30 | 18:08 | 11 h 17 min | 53.2° |
| June | 07:01 | 12:35 | 18:09 | 11 h 09 min | 50.0° |
| July | 07:01 | 12:40 | 18:18 | 11 h 17 min | 53.1° |
| August | 06:47 | 12:36 | 18:25 | 11 h 38 min | 61.5° |
| September | 06:23 | 12:26 | 18:29 | 12 h 06 min | 73.0° |
| October | 06:01 | 12:18 | 18:34 | 12 h 33 min | 84.3° |
| November | 05:50 | 12:19 | 18:48 | 12 h 57 min | 86.5° |
| December | 05:58 | 12:31 | 19:05 | 13 h 07 min | 83.1° |
A year of daylight in Laja
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 Laja
Fixed array facing north (azimuth 0°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
20°collects the most energy over a year: 1918 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 | January kWh/kWp/day | Best ÷ worst month |
|---|---|---|---|---|
| 0° | 1819 | 95% | 4.96 | 1.3× |
| 7° off-grid best | 1876 | 98% | 4.85 | 1.2× |
| 15° | 1912 | 100% | 4.66 | 1.2× |
| 17° = latitude | 1916 | 100% | 4.60 | 1.2× |
| 20° year-round best | 1918 | 100% | 4.50 | 1.3× |
| 30° | 1894 | 99% | 4.12 | 1.5× |
| 45° | 1767 | 92% | 3.38 | 1.9× |
| 60° | 1543 | 80% | 2.52 | 2.6× |
| 70° | 1350 | 70% | 1.94 | 3.3× |
| 90° | 940 | 49% | 1.32 | 4.1× |
A fixed array in Laja produces the most over a year at 20°. The design month for an off-grid system is January: at 7° it makes 4.85 kWh per kWp a day, 8% more than at 20°, and costs 2% of the yearly total. Why steep panels win winter.
Off-grid solar in Laja at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 20° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 20° | Mean temp. |
|---|---|---|---|---|---|
| January | 5.85 | 2.27 | 1.94 | 4.50 | 9.5 °C |
| February | 5.81 | 2.82 | 2.43 | 4.70 | 9.3 °C |
| March | 5.77 | 3.64 | 3.16 | 4.97 | 9.3 °C |
| April | 5.64 | 4.86 | 4.25 | 5.32 | 8.6 °C |
| May | 5.45 | 6.17 | 5.43 | 5.66 | 7.2 °C |
| June | 5.15 | 6.62 | 5.84 | 5.62 | 6.3 °C |
| July | 5.28 | 6.43 | 5.70 | 5.66 | 5.7 °C |
| August | 5.83 | 5.75 | 5.08 | 5.80 | 6.7 °C |
| September | 6.12 | 4.36 | 3.82 | 5.52 | 8.0 °C |
| October | 6.57 | 3.26 | 2.82 | 5.43 | 9.3 °C |
| November | 6.80 | 2.37 | 2.02 | 5.21 | 10.2 °C |
| December | 6.18 | 2.10 | 1.78 | 4.65 | 9.9 °C |
| Year | 5.87 avg | 4.23 avg | 1350 kWh | 1918 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 660 Wp of panels at 70°, versus 260 Wp at 20°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Laja
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.
2.4 mrow pitch at 70°
2.5 mrow pitch at 20°
How Laja compares in Bolivia
Against the other 38 places in Bolivia with climate data, for a fixed array at its best angle.
8thof 39 places in Bolivia for sunshine: 5.87 peak sun hours a day on flat ground.
+14%solar energy a year compared with the average place in Bolivia: 1,918 against 1,680 kWh per kWp.
±0 mindaylight on the longest day, compared with La Paz: 13 h 07 min against 13 h 07 min.
20°best year-round tilt here; across Bolivia it runs from 14° in Riberalta to 25° in Villazón.
Of the 39 places in Bolivia, Tupiza gets the most sun (6.59 peak sun hours a day) and Villa Yapacaní the least (4.60); Laja ranks 8th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 1.78 kWh a day here, against 1.69 kWh on average in Bolivia. The shortest day lasts 11 h 09 min, ±0 min compared with La Paz.
Solar forecast for Laja, 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 Laja
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Places near Laja
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A free, live card for Laja: 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.