Djibouti · 11.53° N · 42.85° E
Solar position in Arta
Sun position, daylight and the best solar panel angle for Arta — computed for 11.53° N, 42.85° E, 684 m above sea level.
The sun right now
Sun in Arta today
Saturday, 24 October 2026 · local time UTC+3
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:47 | sun 18° below horizon |
| Nautical dawn | 05:12 | 12° below |
| Civil dawn | 05:37 | 6° below |
| Sunrise | 05:59 | 102° ESE |
| Golden hour ends | 06:27 | sun 6° up |
| Solar noon | 11:52 | 66.7° high |
| Golden hour starts | 17:17 | sun 6° up |
| Sunset | 17:46 | 258° WSW |
| Civil dusk | 18:07 | 6° below |
| Nautical dusk | 18:32 | 12° below |
| Astronomical dusk | 18:57 | 18° below |
| Day length | 11 h 47 min | |
Sun path diagram for Arta
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 78.1° at solar noon in Arta; on the December solstice only 55.0°. Sunrise swings from 66° ENE in June to 114° ESE in December — a 48° 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 | 12:19 | 18:06 | 11 h 34 min | 58.6° |
| February | 06:27 | 12:22 | 18:17 | 11 h 50 min | 68.0° |
| March | 06:12 | 12:15 | 18:19 | 12 h 07 min | 78.8° |
| April | 05:54 | 12:07 | 18:20 | 12 h 27 min | 89.6° |
| May | 05:44 | 12:05 | 18:26 | 12 h 42 min | 81.3° |
| June | 05:46 | 12:10 | 18:34 | 12 h 48 min | 78.1° |
| July | 05:53 | 12:15 | 18:36 | 12 h 42 min | 81.1° |
| August | 05:58 | 12:11 | 18:25 | 12 h 27 min | 89.5° |
| September | 05:57 | 12:01 | 18:05 | 12 h 08 min | 79.1° |
| October | 05:58 | 11:53 | 17:47 | 11 h 49 min | 67.7° |
| November | 06:07 | 11:54 | 17:41 | 11 h 33 min | 58.5° |
| December | 06:23 | 12:06 | 17:50 | 11 h 27 min | 55.0° |
A year of daylight in Arta
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 Arta
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
12°collects the most energy over a year: 1777 kWh per kWp.
6°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° | 1742 | 98% | 4.57 | 1.3× |
| 6° off-grid best | 1768 | 99% | 4.46 | 1.2× |
| 12° year-round best = latitude | 1777 | 100% | 4.32 | 1.2× |
| 15° | 1775 | 100% | 4.23 | 1.2× |
| 30° | 1708 | 96% | 3.67 | 1.5× |
| 45° | 1544 | 87% | 2.93 | 1.8× |
| 60° | 1298 | 73% | 2.08 | 2.5× |
| 70° | 1102 | 62% | 1.54 | 3.2× |
| 90° | 742 | 42% | 1.19 | 3.5× |
A fixed array in Arta produces the most over a year at 12°. The design month for an off-grid system is July: at 6° it makes 4.46 kWh per kWp a day, 3% more than at 12°, and costs 1% of the yearly total. Why steep panels win winter.
Off-grid solar in Arta at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 12° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 12° | Mean temp. |
|---|---|---|---|---|---|
| January | 5.26 | 5.31 | 4.38 | 4.68 | 23.9 °C |
| February | 5.93 | 4.91 | 4.04 | 5.07 | 24.5 °C |
| March | 6.48 | 4.06 | 3.31 | 5.28 | 26.2 °C |
| April | 6.72 | 2.82 | 2.26 | 5.19 | 28.1 °C |
| May | 6.71 | 2.05 | 1.60 | 4.94 | 31.1 °C |
| June | 6.30 | 1.89 | 1.45 | 4.53 | 33.8 °C |
| July | 5.93 | 2.00 | 1.54 | 4.32 | 33.5 °C |
| August | 6.13 | 2.46 | 1.92 | 4.58 | 32.7 °C |
| September | 6.20 | 3.42 | 2.71 | 4.83 | 32.2 °C |
| October | 6.30 | 4.72 | 3.81 | 5.21 | 28.6 °C |
| November | 5.75 | 5.58 | 4.56 | 5.04 | 26.1 °C |
| December | 5.31 | 5.72 | 4.71 | 4.78 | 24.4 °C |
| Year | 6.08 avg | 3.74 avg | 1102 kWh | 1777 kWh |
Sizing example. To run a 1 kWh-per-day load through June on LiFePO4 batteries (charge controller, battery and inverter losses included) you need about 810 Wp of panels at 70°, versus 270 Wp at 12°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Arta
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.
2.2 mrow pitch at 70°
2.3 mrow pitch at 12°
How Arta compares in Djibouti
Against the other 6 places in Djibouti with climate data, for a fixed array at its best angle.
3rdof 7 places in Djibouti for sunshine, shared: 6.08 peak sun hours a day on flat ground.
±0%solar energy a year compared with the average place in Djibouti: 1,777 against 1,784 kWh per kWp.
±0 mindaylight on the longest day, compared with Djibouti: 12 h 48 min against 12 h 48 min.
12°best year-round tilt here; across Djibouti it runs from 12° in Djibouti to 13° in Tadjoura.
Of the 7 places in Djibouti, Dikhil gets the most sun (6.31 peak sun hours a day) and Obock the least (5.98); Arta ranks joint 3rd. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 1.45 kWh a day here, against 1.44 kWh on average in Djibouti. The shortest day lasts 11 h 27 min, ±0 min compared with Djibouti.
Solar forecast for Arta, 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 Arta
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Places near Arta
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A free, live card for Arta: 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.