Bizerte Governorate · Tunisia · 37.17° N · 10.03° E
Solar position in El Alia
Sun position, daylight and the best solar panel angle for El Alia — computed for 37.17° N, 10.03° E, 100 m above sea level.
The sun right now
Sun in El Alia today
Saturday, 24 October 2026 · local time UTC+1
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:08 | sun 18° below horizon |
| Nautical dawn | 05:39 | 12° below |
| Civil dawn | 06:09 | 6° below |
| Sunrise | 06:36 | 104° ESE |
| Golden hour ends | 07:12 | sun 6° up |
| Solar noon | 12:03 | 41.0° 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 55 min | |
Sun path diagram for El Alia
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 76.3° at solar noon in El Alia; on the December solstice only 29.4°. 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 | 07:30 | 12:31 | 17:32 | 10 h 02 min | 33.0° |
| February | 07:01 | 12:33 | 18:05 | 11 h 04 min | 42.4° |
| March | 06:22 | 12:27 | 18:32 | 12 h 10 min | 53.2° |
| April | 05:37 | 12:18 | 19:00 | 13 h 22 min | 64.8° |
| May | 05:07 | 12:16 | 19:26 | 14 h 19 min | 73.1° |
| June | 05:00 | 12:21 | 19:43 | 14 h 43 min | 76.3° |
| July | 05:15 | 12:26 | 19:36 | 14 h 20 min | 73.2° |
| August | 05:41 | 12:22 | 19:04 | 13 h 23 min | 64.9° |
| September | 06:06 | 12:12 | 18:18 | 12 h 12 min | 53.4° |
| October | 06:33 | 12:04 | 17:35 | 11 h 02 min | 42.1° |
| November | 07:04 | 12:05 | 17:06 | 10 h 01 min | 32.9° |
| December | 07:29 | 12:17 | 17:06 | 9 h 36 min | 29.4° |
A year of daylight in El Alia
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 El Alia
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: 1562 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° | 1386 | 89% | 1.62 | 3.7× |
| 15° | 1518 | 97% | 2.20 | 2.7× |
| 30° year-round best | 1562 | 100% | 2.65 | 2.1× |
| 37° = latitude | 1551 | 99% | 2.80 | 1.9× |
| 45° | 1516 | 97% | 2.93 | 1.7× |
| 60° | 1384 | 89% | 3.04 | 1.4× |
| 61° off-grid best | 1372 | 88% | 3.04 | 1.4× |
| 70° | 1252 | 80% | 3.00 | 1.3× |
| 90° | 912 | 58% | 2.69 | 1.9× |
A fixed array in El Alia produces the most over a year at 30°. The design month for an off-grid system is December: at 61° it makes 3.04 kWh per kWp a day, 15% more than at 30°, and costs 12% of the yearly total. Why steep panels win winter.
Off-grid solar in El Alia 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 | 2.30 | 3.69 | 3.18 | 2.89 | 12.5 °C |
| February | 3.15 | 4.06 | 3.50 | 3.52 | 12.1 °C |
| March | 4.36 | 4.45 | 3.82 | 4.35 | 13.6 °C |
| April | 5.51 | 4.24 | 3.60 | 4.85 | 15.6 °C |
| May | 6.54 | 3.94 | 3.30 | 5.21 | 18.5 °C |
| June | 7.39 | 3.80 | 3.13 | 5.50 | 22.5 °C |
| July | 7.37 | 4.00 | 3.25 | 5.52 | 25.7 °C |
| August | 6.49 | 4.44 | 3.61 | 5.28 | 26.3 °C |
| September | 4.96 | 4.55 | 3.75 | 4.55 | 24.0 °C |
| October | 3.74 | 4.52 | 3.77 | 3.93 | 21.2 °C |
| November | 2.55 | 3.86 | 3.27 | 3.05 | 17.1 °C |
| December | 2.05 | 3.50 | 3.00 | 2.65 | 13.9 °C |
| Year | 4.71 avg | 4.09 avg | 1252 kWh | 1562 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 390 Wp of panels at 70°, versus 450 Wp at 30°. The steep array is 12% smaller for the same winter. Size your own system.
Row spacing in El Alia
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 30°
How El Alia compares in Tunisia
Against the other 125 places in Tunisia with climate data, for a fixed array at its best angle.
106thof 126 places in Tunisia for sunshine, shared: 4.71 peak sun hours a day on flat ground.
−5%solar energy a year compared with the average place in Tunisia: 1,562 against 1,645 kWh per kWp.
+2 mindaylight on the longest day, compared with Tunis: 14 h 43 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); El Alia ranks joint 106th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 3.00 kWh a day here, against 3.03 kWh on average in Tunisia. The shortest day lasts 9 h 36 min, −2 min compared with Tunis.
Solar forecast for El Alia, 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 El Alia
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Places near El Alia
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A free, live card for El Alia: 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.