Santiago del Estero · Argentina · 28.46° S · 62.83° W
Solar position in Añatuya
Sun position, daylight and the best solar panel angle for Añatuya — computed for 28.46° S, 62.83° W, 101 m above sea level.
The sun right now
Sun in Añatuya today
Saturday, 24 October 2026 · local time UTC−3
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:02 | sun 18° below horizon |
| Nautical dawn | 05:32 | 12° below |
| Civil dawn | 06:01 | 6° below |
| Sunrise | 06:25 | 104° ESE |
| Golden hour ends | 06:57 | sun 6° up |
| Solar noon | 12:55 | 73.5° high |
| Golden hour starts | 18:54 | sun 6° up |
| Sunset | 19:25 | 256° WSW |
| Civil dusk | 19:50 | 6° below |
| Nautical dusk | 20:19 | 12° below |
| Astronomical dusk | 20:48 | 18° below |
| Day length | 13 h 00 min | |
Sun path diagram for Añatuya
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 38.1° at solar noon in Añatuya; on the December solstice only 85.0°. Sunrise swings from 64° ENE in June to 117° ESE in December — a 54° 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 | 06:33 | 13:22 | 20:11 | 13 h 38 min | 81.3° |
| February | 06:58 | 13:24 | 19:51 | 12 h 53 min | 71.9° |
| March | 07:15 | 13:18 | 19:20 | 12 h 06 min | 61.1° |
| April | 07:32 | 13:09 | 18:47 | 11 h 15 min | 49.5° |
| May | 07:49 | 13:07 | 18:25 | 10 h 36 min | 41.3° |
| June | 08:03 | 13:13 | 18:23 | 10 h 20 min | 38.1° |
| July | 08:00 | 13:17 | 18:35 | 10 h 35 min | 41.2° |
| August | 07:37 | 13:14 | 18:52 | 11 h 15 min | 49.6° |
| September | 07:01 | 13:04 | 19:07 | 12 h 05 min | 61.0° |
| October | 06:28 | 12:56 | 19:23 | 12 h 55 min | 72.4° |
| November | 06:07 | 12:57 | 19:47 | 13 h 39 min | 81.6° |
| December | 06:10 | 13:09 | 20:08 | 13 h 58 min | 85.0° |
A year of daylight in Añatuya
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 Añatuya
Fixed array facing north (azimuth 0°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
26°collects the most energy over a year: 1589 kWh per kWp.
51°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° | 1453 | 91% | 2.20 | 2.5× |
| 15° | 1565 | 99% | 2.83 | 1.9× |
| 26° year-round best | 1589 | 100% | 3.17 | 1.6× |
| 28° = latitude | 1588 | 100% | 3.22 | 1.5× |
| 30° | 1585 | 100% | 3.27 | 1.5× |
| 45° | 1511 | 95% | 3.52 | 1.3× |
| 51° off-grid best | 1457 | 92% | 3.55 | 1.3× |
| 60° | 1351 | 85% | 3.54 | 1.5× |
| 70° | 1201 | 76% | 3.44 | 1.9× |
| 90° | 838 | 53% | 2.95 | 3.2× |
A fixed array in Añatuya produces the most over a year at 26°. The design month for an off-grid system is June: at 51° it makes 3.55 kWh per kWp a day, 12% more than at 26°, and costs 8% of the yearly total. Why steep panels win winter.
Off-grid solar in Añatuya at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 26° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 26° | Mean temp. |
|---|---|---|---|---|---|
| January | 6.84 | 3.07 | 2.46 | 4.93 | 28.4 °C |
| February | 6.19 | 3.68 | 2.97 | 4.85 | 27.5 °C |
| March | 5.05 | 4.04 | 3.30 | 4.39 | 25.1 °C |
| April | 3.90 | 4.16 | 3.46 | 3.82 | 21.3 °C |
| May | 3.10 | 4.07 | 3.45 | 3.38 | 17.2 °C |
| June | 2.74 | 4.02 | 3.44 | 3.17 | 14.6 °C |
| July | 3.23 | 4.71 | 4.04 | 3.76 | 14.1 °C |
| August | 4.20 | 5.14 | 4.36 | 4.47 | 16.8 °C |
| September | 5.11 | 4.69 | 3.92 | 4.78 | 20.2 °C |
| October | 5.82 | 3.86 | 3.17 | 4.79 | 24.0 °C |
| November | 6.77 | 3.24 | 2.62 | 5.03 | 26.2 °C |
| December | 6.88 | 2.86 | 2.29 | 4.88 | 27.7 °C |
| Year | 4.98 avg | 3.96 avg | 1201 kWh | 1589 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 520 Wp of panels at 70°, versus 370 Wp at 26°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Añatuya
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.
3.4 mrow pitch at 70°
3.1 mrow pitch at 26°
How Añatuya compares in Argentina
Against the other 313 places in Argentina with climate data, for a fixed array at its best angle.
88thof 314 places in Argentina for sunshine, shared: 4.98 peak sun hours a day on flat ground.
−3%solar energy a year compared with the average place in Argentina: 1,589 against 1,639 kWh per kWp.
−31 mindaylight on the longest day, compared with Buenos Aires: 13 h 58 min against 14 h 29 min.
26°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); Añatuya ranks joint 88th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 2.29 kWh a day here, against 2.68 kWh on average in Argentina. The shortest day lasts 10 h 20 min, +30 min compared with Buenos Aires.
Solar forecast for Añatuya, 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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A free, live card for Añatuya: 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.