Ariana Governorate · Tunisia · 36.83° N · 10.11° E
Solar position in Ettadhamen
Sun position, daylight and the best solar panel angle for Ettadhamen — computed for 36.83° N, 10.11° E, 48 m above sea level.
The sun right now
Sun in Ettadhamen today
Saturday, 24 October 2026 · local time UTC+1
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:08 | sun 18° below horizon |
| Nautical dawn | 05:38 | 12° below |
| Civil dawn | 06:08 | 6° below |
| Sunrise | 06:35 | 104° ESE |
| Golden hour ends | 07:11 | sun 6° up |
| Solar noon | 12:03 | 41.3° high |
| Golden hour starts | 16:55 | sun 6° up |
| Sunset | 17:31 | 256° WSW |
| Civil dusk | 17:58 | 6° below |
| Nautical dusk | 18:28 | 12° below |
| Astronomical dusk | 18:58 | 18° below |
| Day length | 10 h 56 min | |
Sun path diagram for Ettadhamen
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 76.6° at solar noon in Ettadhamen; on the December solstice only 29.8°. Sunrise swings from 59° ENE in June to 119° 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 | 07:29 | 12:31 | 17:32 | 10 h 04 min | 33.4° |
| February | 07:00 | 12:33 | 18:05 | 11 h 05 min | 42.7° |
| March | 06:21 | 12:26 | 18:32 | 12 h 10 min | 53.5° |
| April | 05:37 | 12:18 | 18:59 | 13 h 21 min | 65.1° |
| May | 05:07 | 12:16 | 19:25 | 14 h 18 min | 73.4° |
| June | 05:00 | 12:21 | 19:42 | 14 h 41 min | 76.6° |
| July | 05:16 | 12:25 | 19:35 | 14 h 19 min | 73.6° |
| August | 05:41 | 12:22 | 19:03 | 13 h 22 min | 65.2° |
| September | 06:06 | 12:12 | 18:18 | 12 h 12 min | 53.8° |
| October | 06:32 | 12:03 | 17:35 | 11 h 03 min | 42.4° |
| November | 07:03 | 12:05 | 17:06 | 10 h 03 min | 33.2° |
| December | 07:28 | 12:17 | 17:06 | 9 h 38 min | 29.8° |
A year of daylight in Ettadhamen
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 Ettadhamen
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
30°collects the most energy over a year: 1567 kWh per kWp.
61°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 | December kWh/kWp/day | Best ÷ worst month |
|---|---|---|---|---|
| 0° | 1391 | 89% | 1.67 | 3.5× |
| 15° | 1523 | 97% | 2.27 | 2.6× |
| 30° year-round best | 1567 | 100% | 2.74 | 2.0× |
| 37° = latitude | 1557 | 99% | 2.89 | 1.8× |
| 45° | 1521 | 97% | 3.03 | 1.6× |
| 60° | 1388 | 89% | 3.13 | 1.3× |
| 61° off-grid best | 1376 | 88% | 3.13 | 1.3× |
| 70° | 1256 | 80% | 3.09 | 1.2× |
| 90° | 915 | 58% | 2.77 | 1.9× |
A fixed array in Ettadhamen produces the most over a year at 30°. The design month for an off-grid system is December: at 61° it makes 3.13 kWh per kWp a day, 14% more than at 30°, and costs 12% of the yearly total. Why steep panels win winter.
Off-grid solar in Ettadhamen at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 30° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 30° | Mean temp. |
|---|---|---|---|---|---|
| January | 2.37 | 3.81 | 3.30 | 3.00 | 11.3 °C |
| February | 3.19 | 4.09 | 3.55 | 3.58 | 11.2 °C |
| March | 4.36 | 4.42 | 3.80 | 4.35 | 13.1 °C |
| April | 5.47 | 4.19 | 3.56 | 4.80 | 15.6 °C |
| May | 6.53 | 3.92 | 3.27 | 5.18 | 18.9 °C |
| June | 7.37 | 3.77 | 3.09 | 5.45 | 23.3 °C |
| July | 7.39 | 3.98 | 3.22 | 5.50 | 26.6 °C |
| August | 6.50 | 4.42 | 3.58 | 5.26 | 27.0 °C |
| September | 4.95 | 4.51 | 3.71 | 4.52 | 23.9 °C |
| October | 3.78 | 4.54 | 3.79 | 3.97 | 20.7 °C |
| November | 2.61 | 3.94 | 3.35 | 3.13 | 16.1 °C |
| December | 2.11 | 3.59 | 3.09 | 2.74 | 12.6 °C |
| Year | 4.73 avg | 4.10 avg | 1256 kWh | 1567 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 380 Wp of panels at 70°, versus 430 Wp at 30°. The steep array is 11% smaller for the same winter. Size your own system.
Row spacing in Ettadhamen
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.
4.4 mrow pitch at 70°
3.7 mrow pitch at 30°
How Ettadhamen compares in Tunisia
Against the other 125 places in Tunisia with climate data, for a fixed array at its best angle.
89thof 126 places in Tunisia for sunshine, shared: 4.73 peak sun hours a day on flat ground.
−5%solar energy a year compared with the average place in Tunisia: 1,567 against 1,645 kWh per kWp.
±0 mindaylight on the longest day, compared with Tunis: 14 h 41 min against 14 h 41 min.
30°best year-round tilt here; across Tunisia it runs from 29° in Houmt Souk to 31° in Kairouan.
Of the 126 places in Tunisia, Nefta and 2 other places get the most sun (5.54 peak sun hours a day) and Grombalia and one other place the least (4.68); Ettadhamen ranks joint 89th. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 3.09 kWh a day here, against 3.03 kWh on average in Tunisia. The shortest day lasts 9 h 38 min, ±0 min compared with Tunis.
Solar forecast for Ettadhamen, 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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Places near Ettadhamen
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A free, live card for Ettadhamen: 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.