Moquegua Department · Peru · 17.63° S · 71.34° W
Solar position in Ilo
Sun position, daylight and the best solar panel angle for Ilo — computed for 17.63° S, 71.34° W, 22 m above sea level.
The sun right now
Sun in Ilo today
Saturday, 24 October 2026 · local time UTC−5
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 03:55 | sun 18° below horizon |
| Nautical dawn | 04:22 | 12° below |
| Civil dawn | 04:48 | 6° below |
| Sunrise | 05:10 | 103° ESE |
| Golden hour ends | 05:40 | sun 6° up |
| Solar noon | 11:29 | 84.3° high |
| Golden hour starts | 17:19 | sun 6° up |
| Sunset | 17:48 | 257° WSW |
| Civil dusk | 18:10 | 6° below |
| Nautical dusk | 18:37 | 12° below |
| Astronomical dusk | 19:03 | 18° below |
| Day length | 12 h 38 min | |
Sun path diagram for Ilo
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 48.9° at solar noon in Ilo; on the December solstice only 84.2°. Sunrise swings from 66° ENE in June to 115° ESE in December — a 49° 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 | 05:26 | 11:56 | 18:26 | 13 h 00 min | 87.8° |
| February | 05:41 | 11:58 | 18:15 | 12 h 34 min | 82.7° |
| March | 05:49 | 11:52 | 17:55 | 12 h 06 min | 71.9° |
| April | 05:55 | 11:43 | 17:31 | 11 h 36 min | 60.3° |
| May | 06:05 | 11:41 | 17:18 | 11 h 14 min | 52.1° |
| June | 06:15 | 11:47 | 17:19 | 11 h 04 min | 48.9° |
| July | 06:15 | 11:51 | 17:28 | 11 h 13 min | 52.0° |
| August | 06:00 | 11:48 | 17:36 | 11 h 36 min | 60.4° |
| September | 05:35 | 11:38 | 17:41 | 12 h 06 min | 71.9° |
| October | 05:12 | 11:29 | 17:47 | 12 h 35 min | 83.2° |
| November | 05:00 | 11:31 | 18:01 | 13 h 01 min | 87.6° |
| December | 05:07 | 11:43 | 18:19 | 13 h 11 min | 84.2° |
A year of daylight in Ilo
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 Ilo
Fixed array facing north (azimuth 0°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
15°collects the most energy over a year: 1737 kWh per kWp.
39°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 | July kWh/kWp/day | Best ÷ worst month |
|---|---|---|---|---|
| 0° | 1686 | 97% | 3.05 | 2.0× |
| 15° year-round best | 1737 | 100% | 3.60 | 1.5× |
| 18° = latitude | 1735 | 100% | 3.68 | 1.5× |
| 30° | 1687 | 97% | 3.92 | 1.4× |
| 39° off-grid best | 1608 | 93% | 4.01 | 1.3× |
| 45° | 1537 | 88% | 4.01 | 1.4× |
| 60° | 1302 | 75% | 3.86 | 1.9× |
| 70° | 1109 | 64% | 3.63 | 2.5× |
| 90° | 730 | 42% | 2.87 | 3.2× |
A fixed array in Ilo produces the most over a year at 15°. The design month for an off-grid system is July: at 39° it makes 4.01 kWh per kWp a day, 11% more than at 15°, and costs 7% of the yearly total. Why steep panels win winter.
Off-grid solar in Ilo at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 15° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 15° | Mean temp. |
|---|---|---|---|---|---|
| January | 7.17 | 2.26 | 1.84 | 5.44 | 20.8 °C |
| February | 6.97 | 3.07 | 2.53 | 5.51 | 21.3 °C |
| March | 6.65 | 4.20 | 3.50 | 5.57 | 20.9 °C |
| April | 5.56 | 4.94 | 4.14 | 5.01 | 19.5 °C |
| May | 4.47 | 4.94 | 4.17 | 4.26 | 17.9 °C |
| June | 3.69 | 4.43 | 3.76 | 3.60 | 16.5 °C |
| July | 3.73 | 4.25 | 3.63 | 3.60 | 15.6 °C |
| August | 4.28 | 4.08 | 3.48 | 3.96 | 15.5 °C |
| September | 5.03 | 3.67 | 3.11 | 4.40 | 15.9 °C |
| October | 6.04 | 3.12 | 2.62 | 4.98 | 16.8 °C |
| November | 6.90 | 2.40 | 1.99 | 5.36 | 18.0 °C |
| December | 7.31 | 2.04 | 1.66 | 5.49 | 19.4 °C |
| Year | 5.64 avg | 3.62 avg | 1109 kWh | 1737 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 710 Wp of panels at 70°, versus 330 Wp at 15°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Ilo
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.
2.5 mrow pitch at 70°
2.4 mrow pitch at 15°
How Ilo compares in Peru
Against the other 135 places in Peru with climate data, for a fixed array at its best angle.
25thof 136 places in Peru for sunshine: 5.64 peak sun hours a day on flat ground.
+8%solar energy a year compared with the average place in Peru: 1,737 against 1,605 kWh per kWp.
+21 mindaylight on the longest day, compared with Lima: 13 h 11 min against 12 h 50 min.
15°best year-round tilt here; across Peru it runs from 3° in Tumbes to 19° in Arequipa.
Of the 136 places in Peru, Ciudad Satelite and one other place get the most sun (6.60 peak sun hours a day) and La Peca the least (4.16); Ilo ranks 25th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 1.66 kWh a day here, against 1.33 kWh on average in Peru. The shortest day lasts 11 h 04 min, −21 min compared with Lima.
Solar forecast for Ilo, 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 Ilo
What is the best solar panel angle in Ilo?
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Places near Ilo
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A free, live card for Ilo: 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.