Buenos Aires · Argentina · 34.20° S · 60.73° W
Solar position in Rojas
Sun position, daylight and the best solar panel angle for Rojas — computed for 34.20° S, 60.73° W, 56 m above sea level.
The sun right now
Sun in Rojas today
Saturday, 24 October 2026 · local time UTC−3
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:40 | sun 18° below horizon |
| Nautical dawn | 05:13 | 12° below |
| Civil dawn | 05:44 | 6° below |
| Sunrise | 06:10 | 105° ESE |
| Golden hour ends | 06:44 | sun 6° up |
| Solar noon | 12:47 | 67.7° high |
| Golden hour starts | 18:50 | sun 6° up |
| Sunset | 19:24 | 255° WSW |
| Civil dusk | 19:50 | 6° below |
| Nautical dusk | 20:21 | 12° below |
| Astronomical dusk | 20:54 | 18° below |
| Day length | 13 h 14 min | |
Sun path diagram for Rojas
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 32.4° at solar noon in Rojas; on the December solstice only 79.2°. 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.
| Month | Sunrise | Solar noon | Sunset | Day length | Noon elevation |
|---|---|---|---|---|---|
| January | 06:12 | 13:14 | 20:15 | 14 h 02 min | 75.6° |
| February | 06:43 | 13:16 | 19:48 | 13 h 05 min | 66.2° |
| March | 07:06 | 13:09 | 19:12 | 12 h 06 min | 55.4° |
| April | 07:30 | 13:01 | 18:32 | 11 h 02 min | 43.8° |
| May | 07:53 | 12:59 | 18:05 | 10 h 13 min | 35.5° |
| June | 08:08 | 13:04 | 18:00 | 9 h 52 min | 32.4° |
| July | 08:03 | 13:09 | 18:15 | 10 h 12 min | 35.4° |
| August | 07:35 | 13:06 | 18:37 | 11 h 02 min | 43.9° |
| September | 06:53 | 12:56 | 18:58 | 12 h 05 min | 55.3° |
| October | 06:13 | 12:47 | 19:21 | 13 h 08 min | 66.7° |
| November | 05:47 | 12:48 | 19:50 | 14 h 04 min | 75.8° |
| December | 05:47 | 13:01 | 20:14 | 14 h 27 min | 79.2° |
A year of daylight in Rojas
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 Rojas
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: 1625 kWh per kWp.
60°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 | June kWh/kWp/day | Best ÷ worst month |
|---|---|---|---|---|
| 0° | 1434 | 88% | 1.89 | 3.2× |
| 15° | 1577 | 97% | 2.58 | 2.3× |
| 30° year-round best | 1625 | 100% | 3.10 | 1.7× |
| 34° = latitude | 1622 | 100% | 3.21 | 1.6× |
| 45° | 1577 | 97% | 3.43 | 1.4× |
| 60° off-grid best | 1437 | 88% | 3.54 | 1.2× |
| 70° | 1297 | 80% | 3.49 | 1.4× |
| 90° | 936 | 58% | 3.09 | 2.3× |
A fixed array in Rojas produces the most over a year at 30°. The design month for an off-grid system is June: at 60° it makes 3.54 kWh per kWp a day, 14% more than at 30°, and costs 12% of the yearly total. Why steep panels win winter.
Off-grid solar in Rojas at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 30° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 30° | Mean temp. |
|---|---|---|---|---|---|
| January | 7.23 | 3.68 | 3.01 | 5.34 | 24.4 °C |
| February | 6.31 | 4.23 | 3.48 | 5.17 | 23.0 °C |
| March | 5.21 | 4.72 | 3.94 | 4.86 | 20.4 °C |
| April | 3.84 | 4.74 | 4.03 | 4.19 | 16.4 °C |
| May | 2.78 | 4.18 | 3.60 | 3.39 | 12.7 °C |
| June | 2.34 | 4.00 | 3.49 | 3.10 | 9.5 °C |
| July | 2.51 | 4.01 | 3.51 | 3.21 | 8.8 °C |
| August | 3.45 | 4.62 | 4.01 | 4.00 | 10.8 °C |
| September | 4.61 | 4.69 | 4.02 | 4.63 | 13.5 °C |
| October | 5.61 | 4.20 | 3.55 | 4.91 | 16.9 °C |
| November | 6.84 | 3.79 | 3.15 | 5.29 | 20.4 °C |
| December | 7.43 | 3.52 | 2.88 | 5.39 | 23.0 °C |
| Year | 4.84 avg | 4.20 avg | 1297 kWh | 1625 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 380 Wp at 30°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Rojas
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°
How Rojas compares in Argentina
Against the other 313 places in Argentina with climate data, for a fixed array at its best angle.
178thof 314 places in Argentina for sunshine, shared: 4.84 peak sun hours a day on flat ground.
−1%solar energy a year compared with the average place in Argentina: 1,625 against 1,639 kWh per kWp.
−2 mindaylight on the longest day, compared with Buenos Aires: 14 h 27 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); Rojas ranks joint 178th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 2.88 kWh a day here, against 2.68 kWh on average in Argentina. The shortest day lasts 9 h 52 min, +2 min compared with Buenos Aires.
Solar forecast for Rojas, 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 Rojas
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Places near Rojas
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A free, live card for Rojas: 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.