Buenos Aires · Argentina · 37.15° S · 58.49° W
Solar position in Ayacucho
Sun position, daylight and the best solar panel angle for Ayacucho — computed for 37.15° S, 58.49° W, 76 m above sea level.
The sun right now
Sun in Ayacucho today
Saturday, 24 October 2026 · local time UTC−3
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:23 | sun 18° below horizon |
| Nautical dawn | 04:57 | 12° below |
| Civil dawn | 05:30 | 6° below |
| Sunrise | 05:57 | 106° ESE |
| Golden hour ends | 06:32 | sun 6° up |
| Solar noon | 12:38 | 64.8° high |
| Golden hour starts | 18:44 | sun 6° up |
| Sunset | 19:19 | 254° WSW |
| Civil dusk | 19:46 | 6° below |
| Nautical dusk | 20:19 | 12° below |
| Astronomical dusk | 20:53 | 18° below |
| Day length | 13 h 22 min | |
Sun path diagram for Ayacucho
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 29.4° at solar noon in Ayacucho; on the December solstice only 76.3°. Sunrise swings from 61° ENE in June to 121° ESE in December — a 60° 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 | 05:57 | 13:05 | 20:13 | 14 h 16 min | 72.6° |
| February | 06:30 | 13:07 | 19:43 | 13 h 12 min | 63.2° |
| March | 06:57 | 13:00 | 19:03 | 12 h 06 min | 52.4° |
| April | 07:25 | 12:52 | 18:19 | 10 h 54 min | 40.8° |
| May | 07:50 | 12:50 | 17:50 | 9 h 59 min | 32.6° |
| June | 08:07 | 12:55 | 17:43 | 9 h 36 min | 29.4° |
| July | 08:01 | 13:00 | 17:59 | 9 h 59 min | 32.5° |
| August | 07:29 | 12:57 | 18:24 | 10 h 55 min | 40.9° |
| September | 06:44 | 12:47 | 18:49 | 12 h 05 min | 52.3° |
| October | 06:01 | 12:38 | 19:16 | 13 h 15 min | 63.7° |
| November | 05:31 | 12:39 | 19:48 | 14 h 18 min | 72.9° |
| December | 05:30 | 12:52 | 20:13 | 14 h 43 min | 76.3° |
A year of daylight in Ayacucho
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 Ayacucho
Fixed array facing north (azimuth 0°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
32°collects the most energy over a year: 1600 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° | 1391 | 87% | 1.65 | 3.7× |
| 15° | 1541 | 96% | 2.32 | 2.6× |
| 30° | 1599 | 100% | 2.83 | 2.0× |
| 32° year-round best | 1600 | 100% | 2.89 | 1.9× |
| 37° = latitude | 1594 | 100% | 3.01 | 1.8× |
| 45° | 1563 | 98% | 3.17 | 1.6× |
| 60° off-grid best | 1436 | 90% | 3.30 | 1.3× |
| 70° | 1306 | 82% | 3.27 | 1.3× |
| 90° | 960 | 60% | 2.95 | 2.0× |
A fixed array in Ayacucho produces the most over a year at 32°. The design month for an off-grid system is June: at 60° it makes 3.30 kWh per kWp a day, 14% more than at 32°, and costs 10% of the yearly total. Why steep panels win winter.
Off-grid solar in Ayacucho at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 32° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 32° | Mean temp. |
|---|---|---|---|---|---|
| January | 7.27 | 4.01 | 3.30 | 5.47 | 22.6 °C |
| February | 6.29 | 4.49 | 3.72 | 5.27 | 21.6 °C |
| March | 5.01 | 4.79 | 4.03 | 4.82 | 18.7 °C |
| April | 3.68 | 4.80 | 4.11 | 4.20 | 14.6 °C |
| May | 2.52 | 4.00 | 3.48 | 3.23 | 10.9 °C |
| June | 2.06 | 3.73 | 3.27 | 2.89 | 7.7 °C |
| July | 2.19 | 3.65 | 3.22 | 2.93 | 6.9 °C |
| August | 3.02 | 4.18 | 3.65 | 3.61 | 8.6 °C |
| September | 4.21 | 4.44 | 3.85 | 4.35 | 10.6 °C |
| October | 5.44 | 4.32 | 3.69 | 4.89 | 13.9 °C |
| November | 6.82 | 4.06 | 3.41 | 5.40 | 17.5 °C |
| December | 7.60 | 3.89 | 3.22 | 5.61 | 20.9 °C |
| Year | 4.67 avg | 4.19 avg | 1306 kWh | 1600 kWh |
Sizing example. To run a 1 kWh-per-day load through July on LiFePO4 batteries (charge controller, battery and inverter losses included) you need about 370 Wp of panels at 70°, versus 410 Wp at 32°. The steep array is 10% smaller for the same winter. Size your own system.
Row spacing in Ayacucho
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.
4.5 mrow pitch at 70°
3.8 mrow pitch at 32°
How Ayacucho compares in Argentina
Against the other 313 places in Argentina with climate data, for a fixed array at its best angle.
286thof 314 places in Argentina for sunshine, shared: 4.67 peak sun hours a day on flat ground.
−2%solar energy a year compared with the average place in Argentina: 1,600 against 1,639 kWh per kWp.
+15 mindaylight on the longest day, compared with Buenos Aires: 14 h 43 min against 14 h 29 min.
32°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); Ayacucho ranks joint 286th. In its darkest month, July, 1 kWp of off-grid panels at 70° makes 3.22 kWh a day here, against 2.68 kWh on average in Argentina. The shortest day lasts 9 h 36 min, −14 min compared with Buenos Aires.
Solar forecast for Ayacucho, 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 Ayacucho
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Places near Ayacucho
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A free, live card for Ayacucho: 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.