Solarposition.org

Buenos Aires · Argentina · 38.72° S · 62.27° W

Solar position in Bahía Blanca

Sun position, daylight and the best solar panel angle for Bahía Blanca — computed for 38.72° S, 62.27° W, 20 m above sea level.

Sunrise today06:10106° ESE
Sunset today19:36254° WSW
Best panel angle33°year-round, facing north
Off-grid angle64°best for the darkest month

The sun right now

Azimuth180.0°
Elevation63.2°
At solar noon, 12:53Open on the sun map

Sun in Bahía Blanca today

Saturday, 24 October 2026 · local time UTC−3

EventTimeDirection / height
Astronomical dawn04:33sun 18° below horizon
Nautical dawn05:0812° below
Civil dawn05:426° below
Sunrise06:10106° ESE
Golden hour ends06:46sun 6° up
Solar noon12:5363.2° high
Golden hour starts19:00sun 6° up
Sunset19:36254° WSW
Civil dusk20:046° below
Nautical dusk20:3812° below
Astronomical dusk21:1318° below
Day length13 h 27 min

Sun path diagram for Bahía Blanca

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 solstice91011121314151617EquinoxDecember solstice67891011121314151617181920Today
  • June solstice
  • Equinox
  • December solstice
  • Today

On the June solstice the sun reaches 27.9° at solar noon in Bahía Blanca; on the December solstice only 74.7°. Sunrise swings from 60° ENE in June to 121° ESE in December — a 61° 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
January06:0813:2020:3214 h 24 min71.1°
February06:4413:2220:0013 h 16 min61.7°
March07:1213:1519:1812 h 06 min50.9°
April07:4213:0718:3210 h 50 min39.3°
May08:0913:0518:019 h 52 min31.0°
June08:2713:1017:549 h 27 min27.9°
July08:2013:1518:119 h 51 min30.9°
August07:4713:1218:3710 h 51 min39.4°
September06:5913:0219:0412 h 05 min50.8°
October06:1412:5319:3313 h 19 min62.1°
November05:4212:5520:0714 h 25 min71.3°
December05:4013:0720:3314 h 53 min74.7°

A year of daylight in Bahía Blanca

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 Bahía Blanca

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

33°collects the most energy over a year: 1665 kWh per kWp.

64°gives the most in the darkest month — the one an off-grid system is sized for.

40%50%60%70%80%90%100%0°10°20°30°40°50°60°70°80°90°Best year-round 33°Best worst-month 64°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearJune kWh/kWp/dayBest ÷ worst month
0°142586%1.584.0×
15°159296%2.272.8×
30°1662100%2.812.1×
33° year-round best1665100%2.902.0×
39° = latitude1657100%3.061.8×
45°163498%3.181.7×
60°151091%3.341.4×
64° off-grid best146188%3.351.4×
70°137883%3.331.3×
90°102061%3.022.0×

A fixed array in Bahía Blanca produces the most over a year at 33°. The design month for an off-grid system is June: at 64° it makes 3.35 kWh per kWp a day, 15% more than at 33°, and costs 12% of the yearly total. Why steep panels win winter.

Off-grid solar in Bahía Blanca at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 33° (year-round best).

01234567January: 3.56 (70°)3.6JanFebruary: 4.04 (70°)4.0FebMarch: 4.39 (70°)4.4MarApril: 4.30 (70°)4.3AprMay: 3.41 (70°)3.4MayJune: 3.33 (70°)3.3JunJuly: 3.40 (70°)3.4JulAugust: 3.81 (70°)3.8AugSeptember: 4.12 (70°)4.1SepOctober: 3.91 (70°)3.9OctNovember: 3.65 (70°)3.7NovDecember: 3.41 (70°)3.4Dec33°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 33°Mean temp.
January7.784.343.565.8223.9 °C
February6.674.884.045.6222.6 °C
March5.245.244.395.1519.6 °C
April3.665.044.304.3214.8 °C
May2.383.923.413.1410.6 °C
June1.973.783.332.907.3 °C
July2.163.853.403.046.5 °C
August3.004.363.813.728.5 °C
September4.314.764.124.5711.2 °C
October5.594.583.915.0814.5 °C
November7.104.353.655.6318.5 °C
December7.904.143.415.8022.0 °C
Year4.80 avg4.43 avg1378 kWh1665 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 350 Wp of panels at 70°, versus 410 Wp at 33°. The steep array is 13% smaller for the same winter. Size your own system.

Row spacing in Bahía Blanca

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.

4.8 mrow pitch at 70°

4.0 mrow pitch at 33°

Row spacing calculator

How Bahía Blanca compares in Argentina

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

215thof 314 places in Argentina for sunshine, shared: 4.80 peak sun hours a day on flat ground.

+2%solar energy a year compared with the average place in Argentina: 1,664 against 1,639 kWh per kWp.

+24 mindaylight on the longest day, compared with Buenos Aires: 14 h 53 min against 14 h 29 min.

33°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); Bahía Blanca ranks joint 215th. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 3.33 kWh a day here, against 2.68 kWh on average in Argentina. The shortest day lasts 9 h 27 min, −23 min compared with Buenos Aires.

The sunniest places in Argentina

Solar forecast for Bahía Blanca, 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 Bahía Blanca

What is the best solar panel angle in Bahía Blanca?
For a fixed array facing north, the best year-round tilt in Bahía Blanca is 33°, worth about 1665 kWh per kWp a year. An off-grid system that has to get through June does better at about 64°.
What time is sunrise and sunset in Bahía Blanca today?
On 24 October 2026 the sun rises at 06:10 and sets at 19:36 local time (UTC−3), giving 13 h 27 min of daylight. Solar noon is at 12:53.
How many peak sun hours does Bahía Blanca get?
On a flat surface 4.8 hours a day averaged over the year, from 2.0 in June to 7.9 in December. Panels tilted at 70° receive 3.8 sun hours a day in June.
How high does the sun get in Bahía Blanca?
At solar noon the sun stands 27.9° above the horizon on the June solstice and 74.7° on the December solstice.
Is Bahía Blanca a good place for solar panels?
With 4.8 peak sun hours a day on flat ground, Bahía Blanca ranks joint 215th of 314 places in Argentina for sunshine. A 1 kWp array at the best angle (33°) makes about 1,664 kWh a year here, 2% more than the average place in Argentina.

Places near Bahía Blanca

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.