Entre Rios · Argentina · 31.87° S · 59.03° W
Solar position in Villaguay
Sun position, daylight and the best solar panel angle for Villaguay — computed for 31.87° S, 59.03° W, 42 m above sea level.
The sun right now
Sun in Villaguay today
Saturday, 24 October 2026 · local time UTC−3
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:39 | sun 18° below horizon |
| Nautical dawn | 05:11 | 12° below |
| Civil dawn | 05:41 | 6° below |
| Sunrise | 06:06 | 104° ESE |
| Golden hour ends | 06:39 | sun 6° up |
| Solar noon | 12:40 | 70.0° high |
| Golden hour starts | 18:41 | sun 6° up |
| Sunset | 19:14 | 255° WSW |
| Civil dusk | 19:40 | 6° below |
| Nautical dusk | 20:10 | 12° below |
| Astronomical dusk | 20:41 | 18° below |
| Day length | 13 h 08 min | |
Sun path diagram for Villaguay
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 34.7° at solar noon in Villaguay; on the December solstice only 81.6°. Sunrise swings from 63° ENE in June to 119° ESE in December — a 56° 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 | 06:11 | 13:07 | 20:03 | 13 h 52 min | 77.9° |
| February | 06:39 | 13:09 | 19:39 | 13 h 00 min | 68.5° |
| March | 07:00 | 13:03 | 19:05 | 12 h 06 min | 57.7° |
| April | 07:20 | 12:54 | 18:28 | 11 h 07 min | 46.1° |
| May | 07:41 | 12:52 | 18:03 | 10 h 22 min | 37.9° |
| June | 07:56 | 12:57 | 17:59 | 10 h 04 min | 34.7° |
| July | 07:51 | 13:02 | 18:13 | 10 h 22 min | 37.8° |
| August | 07:25 | 12:59 | 18:33 | 11 h 07 min | 46.2° |
| September | 06:46 | 12:49 | 18:51 | 12 h 05 min | 57.6° |
| October | 06:09 | 12:40 | 19:12 | 13 h 03 min | 69.0° |
| November | 05:45 | 12:42 | 19:38 | 13 h 53 min | 78.1° |
| December | 05:47 | 12:54 | 20:01 | 14 h 14 min | 81.6° |
A year of daylight in Villaguay
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 Villaguay
Fixed array facing north (azimuth 0°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
28°collects the most energy over a year: 1599 kWh per kWp.
57°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° | 1435 | 90% | 1.99 | 2.9× |
| 15° | 1563 | 98% | 2.63 | 2.1× |
| 28° year-round best | 1599 | 100% | 3.06 | 1.7× |
| 30° | 1598 | 100% | 3.12 | 1.7× |
| 32° = latitude | 1596 | 100% | 3.17 | 1.6× |
| 45° | 1539 | 96% | 3.41 | 1.4× |
| 57° off-grid best | 1426 | 89% | 3.48 | 1.2× |
| 60° | 1390 | 87% | 3.48 | 1.3× |
| 70° | 1246 | 78% | 3.41 | 1.5× |
| 90° | 884 | 55% | 2.98 | 2.6× |
A fixed array in Villaguay produces the most over a year at 28°. The design month for an off-grid system is June: at 57° it makes 3.48 kWh per kWp a day, 14% more than at 28°, and costs 11% of the yearly total. Why steep panels win winter.
Off-grid solar in Villaguay at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 28° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 28° | Mean temp. |
|---|---|---|---|---|---|
| January | 7.12 | 3.43 | 2.77 | 5.21 | 26.3 °C |
| February | 6.15 | 3.92 | 3.21 | 4.95 | 24.9 °C |
| March | 5.26 | 4.53 | 3.75 | 4.76 | 22.3 °C |
| April | 3.97 | 4.67 | 3.94 | 4.17 | 18.5 °C |
| May | 2.90 | 4.14 | 3.55 | 3.37 | 14.4 °C |
| June | 2.46 | 3.94 | 3.41 | 3.06 | 11.6 °C |
| July | 2.74 | 4.22 | 3.66 | 3.36 | 10.9 °C |
| August | 3.57 | 4.57 | 3.94 | 3.97 | 12.7 °C |
| September | 4.65 | 4.53 | 3.86 | 4.55 | 15.1 °C |
| October | 5.59 | 3.99 | 3.34 | 4.79 | 18.5 °C |
| November | 6.87 | 3.55 | 2.93 | 5.25 | 21.7 °C |
| December | 7.18 | 3.20 | 2.60 | 5.17 | 24.5 °C |
| Year | 4.87 avg | 4.06 avg | 1246 kWh | 1599 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 450 Wp of panels at 70°, versus 380 Wp at 28°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Villaguay
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.
3.7 mrow pitch at 70°
3.3 mrow pitch at 28°
How Villaguay compares in Argentina
Against the other 313 places in Argentina with climate data, for a fixed array at its best angle.
163rdof 314 places in Argentina for sunshine, shared: 4.87 peak sun hours a day on flat ground.
−2%solar energy a year compared with the average place in Argentina: 1,599 against 1,639 kWh per kWp.
−15 mindaylight on the longest day, compared with Buenos Aires: 14 h 14 min against 14 h 29 min.
28°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); Villaguay ranks joint 163rd. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 2.60 kWh a day here, against 2.68 kWh on average in Argentina. The shortest day lasts 10 h 04 min, +14 min compared with Buenos Aires.
Solar forecast for Villaguay, 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 Villaguay
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A free, live card for Villaguay: 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.