Salta · Argentina · 24.74° S · 65.49° W
Solar position in San Lorenzo
Sun position, daylight and the best solar panel angle for San Lorenzo — computed for 24.74° S, 65.49° W, 1335 m above sea level.
The sun right now
Sun in San Lorenzo today
Saturday, 24 October 2026 · local time UTC−3
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:20 | sun 18° below horizon |
| Nautical dawn | 05:49 | 12° below |
| Civil dawn | 06:16 | 6° below |
| Sunrise | 06:40 | 103° ESE |
| Golden hour ends | 07:11 | sun 6° up |
| Solar noon | 13:06 | 77.2° high |
| Golden hour starts | 19:01 | sun 6° up |
| Sunset | 19:32 | 256° WSW |
| Civil dusk | 19:55 | 6° below |
| Nautical dusk | 20:23 | 12° below |
| Astronomical dusk | 20:52 | 18° below |
| Day length | 12 h 52 min | |
Sun path diagram for San Lorenzo
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 41.8° at solar noon in San Lorenzo; on the December solstice only 88.7°. 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 | 06:50 | 13:33 | 20:15 | 13 h 24 min | 85.1° |
| February | 07:12 | 13:35 | 19:58 | 12 h 46 min | 75.7° |
| March | 07:26 | 13:28 | 19:31 | 12 h 06 min | 64.8° |
| April | 07:39 | 13:20 | 19:01 | 11 h 22 min | 53.3° |
| May | 07:53 | 13:18 | 18:43 | 10 h 50 min | 45.0° |
| June | 08:05 | 13:23 | 18:41 | 10 h 36 min | 41.8° |
| July | 08:03 | 13:28 | 18:53 | 10 h 49 min | 44.9° |
| August | 07:43 | 13:25 | 19:06 | 11 h 23 min | 53.3° |
| September | 07:12 | 13:15 | 19:17 | 12 h 05 min | 64.8° |
| October | 06:42 | 13:06 | 19:30 | 12 h 48 min | 76.1° |
| November | 06:25 | 13:07 | 19:50 | 13 h 25 min | 85.3° |
| December | 06:29 | 13:20 | 20:10 | 13 h 41 min | 88.7° |
A year of daylight in San Lorenzo
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 San Lorenzo
Fixed array facing north (azimuth 0°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
26°collects the most energy over a year: 1799 kWh per kWp.
26°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° | 1638 | 91% | 5.14 | 1.8× |
| 15° | 1770 | 98% | 4.93 | 1.4× |
| 25° = latitude | 1798 | 100% | 4.63 | 1.3× |
| 26° year-round best off-grid best | 1799 | 100% | 4.59 | 1.2× |
| 30° | 1795 | 100% | 4.44 | 1.3× |
| 45° | 1712 | 95% | 3.71 | 1.6× |
| 60° | 1530 | 85% | 2.81 | 2.1× |
| 70° | 1360 | 76% | 2.16 | 2.6× |
| 90° | 951 | 53% | 1.06 | 4.3× |
A fixed array in San Lorenzo produces the most over a year at 26°. The design month for an off-grid system is January: at 26° it makes 4.59 kWh per kWp a day, and costs 0% of the yearly total. Why steep panels win winter.
Off-grid solar in San Lorenzo at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 26° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 26° | Mean temp. |
|---|---|---|---|---|---|
| January | 6.30 | 2.62 | 2.16 | 4.59 | 19.8 °C |
| February | 5.83 | 3.20 | 2.67 | 4.61 | 18.9 °C |
| March | 5.31 | 3.93 | 3.31 | 4.63 | 17.7 °C |
| April | 4.68 | 4.78 | 4.08 | 4.65 | 15.5 °C |
| May | 4.10 | 5.38 | 4.64 | 4.60 | 12.3 °C |
| June | 3.87 | 5.75 | 4.99 | 4.63 | 10.9 °C |
| July | 4.23 | 6.12 | 5.31 | 5.01 | 10.5 °C |
| August | 5.17 | 6.13 | 5.28 | 5.56 | 12.7 °C |
| September | 6.11 | 5.26 | 4.49 | 5.73 | 15.3 °C |
| October | 6.55 | 3.91 | 3.28 | 5.37 | 18.5 °C |
| November | 6.88 | 2.90 | 2.41 | 5.08 | 19.7 °C |
| December | 6.53 | 2.45 | 2.01 | 4.64 | 20.0 °C |
| Year | 5.46 avg | 4.38 avg | 1360 kWh | 1799 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 590 Wp of panels at 70°, versus 260 Wp at 26°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in San Lorenzo
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 26°
How San Lorenzo compares in Argentina
Against the other 313 places in Argentina with climate data, for a fixed array at its best angle.
22ndof 314 places in Argentina for sunshine: 5.46 peak sun hours a day on flat ground.
+10%solar energy a year compared with the average place in Argentina: 1,799 against 1,639 kWh per kWp.
−48 mindaylight on the longest day, compared with Buenos Aires: 13 h 41 min against 14 h 29 min.
26°best year-round tilt here; across Argentina it runs from 21° in Tartagal to 44° in Río Gallegos.
Of the 314 places in Argentina, Belén gets the most sun (6.11 peak sun hours a day) and Ushuaia the least (2.59); San Lorenzo ranks 22nd. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 2.01 kWh a day here, against 2.68 kWh on average in Argentina. The shortest day lasts 10 h 36 min, +46 min compared with Buenos Aires.
Solar forecast for San Lorenzo, 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 San Lorenzo
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A free, live card for San Lorenzo: 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.