Solarposition.org

Santa Cruz · Argentina · 51.63° S · 69.25° W

Solar position in Río Gallegos

Sun position, daylight and the best solar panel angle for Río Gallegos — computed for 51.63° S, 69.25° W, 1 m above sea level.

Sunrise today06:14110° ESE
Sunset today20:29249° WSW
Best panel angle44°year-round, facing north
Off-grid angle75°best for the darkest month

The sun right now

Azimuth180.0°
Elevation50.3°
At solar noon, 13:21Open on the sun map

Sun in Río Gallegos today

Saturday, 24 October 2026 · local time UTC−3

EventTimeDirection / height
Astronomical dawn03:59sun 18° below horizon
Nautical dawn04:5212° below
Civil dawn05:376° below
Sunrise06:14110° ESE
Golden hour ends07:00sun 6° up
Solar noon13:2150.3° high
Golden hour starts19:43sun 6° up
Sunset20:29249° WSW
Civil dusk21:056° below
Nautical dusk21:5112° below
Astronomical dusk22:4518° below
Day length14 h 15 min

Sun path diagram for Río Gallegos

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 solstice1011121314151617EquinoxDecember solstice6789101112131415161718192021Today
  • June solstice
  • Equinox
  • December solstice
  • Today

On the June solstice the sun reaches 15.0° at solar noon in Río Gallegos; on the December solstice only 61.8°. Sunrise swings from 52° NE in June to 131° SE in December — a 80° 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
January05:5313:4821:4215 h 49 min58.2°
February06:5013:5020:4913 h 58 min48.8°
March07:4013:4319:4612 h 06 min38.0°
April08:3213:3518:3810 h 06 min26.4°
May09:1813:3317:488 h 30 min18.1°
June09:4413:3817:337 h 48 min15.0°
July09:2913:4317:588 h 29 min18.1°
August08:3613:4018:4410 h 07 min26.5°
September07:2713:3019:3312 h 05 min37.9°
October06:2013:2120:2314 h 03 min49.3°
November05:2713:2321:1915 h 52 min58.4°
December05:1513:3521:5516 h 40 min61.8°

A year of daylight in Río Gallegos

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 Río Gallegos

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

44°collects the most energy over a year: 1341 kWh per kWp.

75°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 44°Best worst-month 75°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearJune kWh/kWp/dayBest ÷ worst month
0°101776%0.559.4×
15°119789%1.055.2×
30°130797%1.483.6×
44° year-round best1341100%1.792.8×
45°1341100%1.812.7×
52° = latitude133099%1.932.4×
60°129797%2.022.2×
70°122691%2.092.0×
75° off-grid best117988%2.101.9×
90°99574%2.031.6×

A fixed array in Río Gallegos produces the most over a year at 44°. The design month for an off-grid system is June: at 75° it makes 2.10 kWh per kWp a day, 17% more than at 44°, and costs 12% of the yearly total. Why steep panels win winter.

Off-grid solar in Río Gallegos at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 44° (year-round best).

0123456January: 3.84 (70°)3.8JanFebruary: 3.99 (70°)4.0FebMarch: 3.67 (70°)3.7MarApril: 3.22 (70°)3.2AprMay: 2.44 (70°)2.4MayJune: 2.09 (70°)2.1JunJuly: 2.38 (70°)2.4JulAugust: 3.14 (70°)3.1AugSeptember: 3.74 (70°)3.7SepOctober: 4.11 (70°)4.1OctNovember: 3.93 (70°)3.9NovDecember: 3.80 (70°)3.8Dec44°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 44°Mean temp.
January5.954.473.844.9311.6 °C
February4.984.623.994.7211.4 °C
March3.474.223.673.959.7 °C
April2.113.663.223.126.8 °C
May1.122.752.442.193.9 °C
June0.762.342.091.791.6 °C
July0.942.652.382.081.1 °C
August1.733.503.142.932.1 °C
September3.024.213.743.854.5 °C
October4.574.684.114.696.7 °C
November5.674.513.934.938.8 °C
December6.174.403.804.9710.7 °C
Year3.37 avg3.83 avg1226 kWh1341 kWh

Sizing example. To run a 1 kWh-per-day load through June on LiFePO4 batteries (charge controller, battery and inverter losses included) you need about 560 Wp of panels at 70°, versus 660 Wp at 44°. The steep array is 14% smaller for the same winter. Size your own system.

Row spacing in Río Gallegos

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.

9.7 mrow pitch at 70°

8.1 mrow pitch at 44°

Row spacing calculator

How Río Gallegos compares in Argentina

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

311thof 314 places in Argentina for sunshine: 3.37 peak sun hours a day on flat ground.

−18%solar energy a year compared with the average place in Argentina: 1,341 against 1,639 kWh per kWp.

+2 h 11 mindaylight on the longest day, compared with Buenos Aires: 16 h 40 min against 14 h 29 min.

44°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); Río Gallegos ranks 311th. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 2.09 kWh a day here, against 2.68 kWh on average in Argentina. The shortest day lasts 7 h 48 min, −2 h 02 min compared with Buenos Aires.

The sunniest places in Argentina

Solar forecast for Río Gallegos, 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 Río Gallegos

What is the best solar panel angle in Río Gallegos?
For a fixed array facing north, the best year-round tilt in Río Gallegos is 44°, worth about 1341 kWh per kWp a year. An off-grid system that has to get through June does better at about 75°.
What time is sunrise and sunset in Río Gallegos today?
On 24 October 2026 the sun rises at 06:14 and sets at 20:29 local time (UTC−3), giving 14 h 15 min of daylight. Solar noon is at 13:21.
How many peak sun hours does Río Gallegos get?
On a flat surface 3.4 hours a day averaged over the year, from 0.8 in June to 6.2 in December. Panels tilted at 70° receive 2.3 sun hours a day in June.
How high does the sun get in Río Gallegos?
At solar noon the sun stands 15.0° above the horizon on the June solstice and 61.8° on the December solstice.
Is Río Gallegos a good place for solar panels?
With 3.4 peak sun hours a day on flat ground, Río Gallegos ranks 311th of 314 places in Argentina for sunshine. A 1 kWp array at the best angle (44°) makes about 1,341 kWh a year here, 18% less than the average place in Argentina.

Places near Río Gallegos

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.