Solarposition.org

San Luis · Argentina · 33.68° S · 65.46° W

Solar position in Villa Mercedes

Sun position, daylight and the best solar panel angle for Villa Mercedes — computed for 33.68° S, 65.46° W, 516 m above sea level.

Sunrise today06:29105° ESE
Sunset today19:42255° WSW
Best panel angle30°year-round, facing north
Off-grid angle55°best for the darkest month

The sun right now

Azimuth180.0°
Elevation68.2°
At solar noon, 13:06Open on the sun map

Sun in Villa Mercedes today

Saturday, 24 October 2026 · local time UTC−3

EventTimeDirection / height
Astronomical dawn05:01sun 18° below horizon
Nautical dawn05:3312° below
Civil dawn06:036° below
Sunrise06:29105° ESE
Golden hour ends07:03sun 6° up
Solar noon13:0668.2° high
Golden hour starts19:08sun 6° up
Sunset19:42255° WSW
Civil dusk20:086° below
Nautical dusk20:3912° below
Astronomical dusk21:1118° below
Day length13 h 13 min

Sun path diagram for Villa Mercedes

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 solstice9101112131415161718EquinoxDecember solstice7891011121314151617181920Today
  • June solstice
  • Equinox
  • December solstice
  • Today

On the June solstice the sun reaches 32.9° at solar noon in Villa Mercedes; on the December solstice only 79.8°. Sunrise swings from 62° ENE in June to 119° ESE in December — a 57° 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
January06:3313:3320:3214 h 00 min76.1°
February07:0213:3520:0713 h 04 min66.7°
March07:2513:2819:3112 h 06 min55.9°
April07:4813:2018:5111 h 03 min44.3°
May08:1013:1818:2510 h 15 min36.1°
June08:2613:2318:219 h 55 min32.9°
July08:2113:2818:3510 h 14 min36.0°
August07:5313:2518:5611 h 03 min44.4°
September07:1213:1519:1712 h 05 min55.8°
October06:3313:0619:4013 h 07 min67.2°
November06:0713:0720:0814 h 01 min76.3°
December06:0813:1920:3114 h 24 min79.8°

A year of daylight in Villa Mercedes

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 Villa Mercedes

Fixed array facing north (azimuth 0°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.

30°collects the most energy over a year: 1751 kWh per kWp.

55°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 30°Best worst-month 55°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearMay kWh/kWp/dayBest ÷ worst month
0°153788%2.402.8×
15°169597%3.092.0×
30° year-round best1751100%3.591.6×
34° = latitude1748100%3.681.5×
45°170297%3.861.3×
55° off-grid best161292%3.921.3×
60°155289%3.901.3×
70°140280%3.791.6×
90°101258%3.262.8×

A fixed array in Villa Mercedes produces the most over a year at 30°. The design month for an off-grid system is May: at 55° it makes 3.92 kWh per kWp a day, 9% more than at 30°, and costs 8% of the yearly total. Why steep panels win winter.

Off-grid solar in Villa Mercedes at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 30° (year-round best).

0123456January: 3.06 (70°)3.1JanFebruary: 3.56 (70°)3.6FebMarch: 4.06 (70°)4.1MarApril: 4.16 (70°)4.2AprMay: 3.79 (70°)3.8MayJune: 4.19 (70°)4.2JunJuly: 4.24 (70°)4.2JulAugust: 4.62 (70°)4.6AugSeptember: 4.43 (70°)4.4SepOctober: 3.80 (70°)3.8OctNovember: 3.25 (70°)3.2NovDecember: 2.91 (70°)2.9Dec30°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 30°Mean temp.
January7.583.743.065.5624.0 °C
February6.574.313.565.3622.6 °C
March5.414.864.065.0420.2 °C
April3.994.894.164.3615.9 °C
May2.944.383.793.5911.7 °C
June2.724.784.193.708.5 °C
July2.924.834.243.847.8 °C
August3.885.314.624.5810.2 °C
September5.045.164.435.1013.4 °C
October6.094.503.805.3117.2 °C
November7.263.913.255.5720.5 °C
December7.813.542.915.5922.9 °C
Year5.18 avg4.52 avg1402 kWh1751 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 410 Wp of panels at 70°, versus 330 Wp at 30°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.

Row spacing in Villa Mercedes

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.

4.0 mrow pitch at 70°

3.5 mrow pitch at 30°

Row spacing calculator

How Villa Mercedes compares in Argentina

Against the other 313 places in Argentina with climate data, for a fixed array at its best angle.

37thof 314 places in Argentina for sunshine: 5.18 peak sun hours a day on flat ground.

+7%solar energy a year compared with the average place in Argentina: 1,751 against 1,639 kWh per kWp.

−5 mindaylight on the longest day, compared with Buenos Aires: 14 h 24 min against 14 h 29 min.

30°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); Villa Mercedes ranks 37th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 2.91 kWh a day here, against 2.68 kWh on average in Argentina. The shortest day lasts 9 h 55 min, +5 min compared with Buenos Aires.

The sunniest places in Argentina

Solar forecast for Villa Mercedes, 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 Villa Mercedes

What is the best solar panel angle in Villa Mercedes?
For a fixed array facing north, the best year-round tilt in Villa Mercedes is 30°, worth about 1751 kWh per kWp a year. An off-grid system that has to get through May does better at about 55°.
What time is sunrise and sunset in Villa Mercedes today?
On 24 October 2026 the sun rises at 06:29 and sets at 19:42 local time (UTC−3), giving 13 h 13 min of daylight. Solar noon is at 13:06.
How many peak sun hours does Villa Mercedes get?
On a flat surface 5.2 hours a day averaged over the year, from 2.7 in June to 7.8 in December. Panels tilted at 70° receive 3.5 sun hours a day in December.
How high does the sun get in Villa Mercedes?
At solar noon the sun stands 32.9° above the horizon on the June solstice and 79.8° on the December solstice.
Is Villa Mercedes a good place for solar panels?
With 5.2 peak sun hours a day on flat ground, Villa Mercedes ranks 37th of 314 places in Argentina for sunshine. A 1 kWp array at the best angle (30°) makes about 1,751 kWh a year here, 7% more than the average place in Argentina.

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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.