Solarposition.org

Tucuman · Argentina · 26.81° S · 65.30° W

Solar position in Yerba Buena

Sun position, daylight and the best solar panel angle for Yerba Buena — computed for 26.81° S, 65.30° W, 472 m above sea level.

Sunrise today06:37104° ESE
Sunset today19:33256° WSW
Best panel angle27°year-round, facing north
Off-grid angle36°best for the darkest month

The sun right now

Azimuth180.0°
Elevation75.1°
At solar noon, 13:05Open on the sun map

Sun in Yerba Buena today

Saturday, 24 October 2026 · local time UTC−3

EventTimeDirection / height
Astronomical dawn05:16sun 18° below horizon
Nautical dawn05:4512° below
Civil dawn06:136° below
Sunrise06:37104° ESE
Golden hour ends07:08sun 6° up
Solar noon13:0575.1° high
Golden hour starts19:02sun 6° up
Sunset19:33256° WSW
Civil dusk19:576° below
Nautical dusk20:2612° below
Astronomical dusk20:5518° below
Day length12 h 57 min

Sun path diagram for Yerba Buena

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 39.8° at solar noon in Yerba Buena; on the December solstice only 86.6°. Sunrise swings from 64° ENE in June to 117° ESE in December — a 53° 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
January06:4613:3220:1813 h 32 min83.0°
February07:0913:3419:5912 h 50 min73.6°
March07:2513:2819:3012 h 06 min62.8°
April07:4013:1918:5811 h 18 min51.2°
May07:5613:1718:3810 h 42 min42.9°
June08:0913:2318:3610 h 27 min39.8°
July08:0613:2718:4810 h 42 min42.8°
August07:4513:2419:0311 h 18 min51.3°
September07:1113:1419:1612 h 05 min62.7°
October06:3913:0519:3212 h 52 min74.1°
November06:2013:0719:5313 h 33 min83.2°
December06:2413:1920:1413 h 50 min86.6°

A year of daylight in Yerba Buena

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 Yerba Buena

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

27°collects the most energy over a year: 1668 kWh per kWp.

36°gives the most in the darkest month — the one an off-grid system is sized for.

20%30%40%50%60%70%80%90%100%0°10°20°30°40°50°60°70°80°90°Best year-round 27°Best worst-month 36°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearMay kWh/kWp/dayBest ÷ worst month
0°151191%2.861.9×
15°163798%3.541.5×
27° year-round best = latitude1668100%3.931.3×
30°1665100%4.001.3×
36° off-grid best164899%4.121.3×
45°159496%4.211.5×
60°142986%4.161.9×
70°127576%3.982.4×
90°89654%3.304.0×

A fixed array in Yerba Buena produces the most over a year at 27°. The design month for an off-grid system is May: at 36° it makes 4.12 kWh per kWp a day, 5% more than at 27°, and costs 1% of the yearly total. Why steep panels win winter.

Off-grid solar in Yerba Buena at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 27° (year-round best).

0123456January: 2.27 (70°)2.3JanFebruary: 2.74 (70°)2.7FebMarch: 3.21 (70°)3.2MarApril: 3.66 (70°)3.7AprMay: 3.98 (70°)4.0MayJune: 4.31 (70°)4.3JunJuly: 4.78 (70°)4.8JulAugust: 4.93 (70°)4.9AugSeptember: 4.26 (70°)4.3SepOctober: 3.20 (70°)3.2OctNovember: 2.43 (70°)2.4NovDecember: 2.08 (70°)2.1Dec27°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 27°Mean temp.
January6.372.792.274.6223.3 °C
February5.783.332.744.5622.3 °C
March4.993.863.214.3620.6 °C
April4.154.333.664.1217.9 °C
May3.504.653.983.9314.2 °C
June3.314.984.313.9912.1 °C
July3.745.524.784.4911.6 °C
August4.715.754.935.1214.0 °C
September5.615.034.265.3017.1 °C
October6.083.853.205.0120.9 °C
November6.492.972.434.8022.5 °C
December6.412.572.084.5423.2 °C
Year5.09 avg4.14 avg1275 kWh1668 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 570 Wp of panels at 70°, versus 300 Wp at 27°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.

Row spacing in Yerba Buena

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.

3.2 mrow pitch at 70°

3.0 mrow pitch at 27°

Row spacing calculator

How Yerba Buena compares in Argentina

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

53rdof 314 places in Argentina for sunshine: 5.09 peak sun hours a day on flat ground.

+2%solar energy a year compared with the average place in Argentina: 1,668 against 1,639 kWh per kWp.

−39 mindaylight on the longest day, compared with Buenos Aires: 13 h 50 min against 14 h 29 min.

27°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); Yerba Buena ranks 53rd. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 2.08 kWh a day here, against 2.68 kWh on average in Argentina. The shortest day lasts 10 h 27 min, +37 min compared with Buenos Aires.

The sunniest places in Argentina

Solar forecast for Yerba Buena, 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 Yerba Buena

What is the best solar panel angle in Yerba Buena?
For a fixed array facing north, the best year-round tilt in Yerba Buena is 27°, worth about 1668 kWh per kWp a year. An off-grid system that has to get through May does better at about 36°.
What time is sunrise and sunset in Yerba Buena today?
On 24 October 2026 the sun rises at 06:37 and sets at 19:33 local time (UTC−3), giving 12 h 57 min of daylight. Solar noon is at 13:05.
How many peak sun hours does Yerba Buena get?
On a flat surface 5.1 hours a day averaged over the year, from 3.3 in June to 6.5 in November. Panels tilted at 70° receive 2.6 sun hours a day in December.
How high does the sun get in Yerba Buena?
At solar noon the sun stands 39.8° above the horizon on the June solstice and 86.6° on the December solstice.
Is Yerba Buena a good place for solar panels?
With 5.1 peak sun hours a day on flat ground, Yerba Buena ranks 53rd of 314 places in Argentina for sunshine. A 1 kWp array at the best angle (27°) makes about 1,668 kWh a year here, 2% more than the average place in Argentina.

Places near Yerba Buena

All places 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.