Matruh · Egypt · 29.20° N · 25.52° E
Solar position in Sīwah
Sun position, daylight and the best solar panel angle for Sīwah — computed for 29.20° N, 25.52° E, -15 m above sea level.
The sun right now
Sun in Sīwah today
Saturday, 24 October 2026 · local time UTC+3
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 06:05 | sun 18° below horizon |
| Nautical dawn | 06:32 | 12° below |
| Civil dawn | 07:00 | 6° below |
| Sunrise | 07:24 | 103° ESE |
| Golden hour ends | 07:57 | sun 6° up |
| Solar noon | 13:01 | 49.0° high |
| Golden hour starts | 18:06 | sun 6° up |
| Sunset | 18:38 | 257° WSW |
| Civil dusk | 19:03 | 6° below |
| Nautical dusk | 19:30 | 12° below |
| Astronomical dusk | 19:58 | 18° below |
| Day length | 11 h 14 min | |
Sun path diagram for Sīwah
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 84.2° at solar noon in Sīwah; on the December solstice only 37.4°. Sunrise swings from 62° ENE in June to 117° ESE in December — a 54° 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 | 07:11 | 12:29 | 17:46 | 10 h 35 min | 41.0° |
| February | 06:51 | 12:31 | 18:11 | 11 h 20 min | 50.3° |
| March | 06:20 | 12:25 | 18:29 | 12 h 09 min | 61.1° |
| April | 05:45 | 12:16 | 18:47 | 13 h 02 min | 72.7° |
| May | 06:22 | 13:14 | 20:06 | 13 h 43 min | 81.0° |
| June | 06:19 | 13:19 | 20:20 | 14 h 01 min | 84.2° |
| July | 06:32 | 13:24 | 20:16 | 13 h 44 min | 81.2° |
| August | 06:49 | 13:21 | 19:52 | 13 h 02 min | 72.8° |
| September | 07:05 | 13:10 | 19:15 | 12 h 10 min | 61.4° |
| October | 07:22 | 13:02 | 18:41 | 11 h 19 min | 50.0° |
| November | 06:46 | 12:03 | 17:20 | 10 h 35 min | 40.9° |
| December | 07:07 | 12:15 | 17:24 | 10 h 17 min | 37.4° |
A year of daylight in Sīwah
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 Sīwah
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
26°collects the most energy over a year: 1950 kWh per kWp.
42°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° | 1778 | 91% | 2.94 | 2.2× |
| 15° | 1919 | 98% | 3.82 | 1.6× |
| 26° year-round best | 1950 | 100% | 4.32 | 1.4× |
| 29° = latitude | 1947 | 100% | 4.43 | 1.3× |
| 30° | 1946 | 100% | 4.47 | 1.3× |
| 42° off-grid best | 1885 | 97% | 4.78 | 1.2× |
| 45° | 1859 | 95% | 4.83 | 1.2× |
| 60° | 1664 | 85% | 4.89 | 1.5× |
| 70° | 1483 | 76% | 4.77 | 1.9× |
| 90° | 1036 | 53% | 4.13 | 3.5× |
A fixed array in Sīwah produces the most over a year at 26°. The design month for an off-grid system is December: at 42° it makes 4.78 kWh per kWp a day, 11% more than at 26°, and costs 3% of the yearly total. Why steep panels win winter.
Off-grid solar in Sīwah at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 26° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 26° | Mean temp. |
|---|---|---|---|---|---|
| January | 3.90 | 5.61 | 4.86 | 4.55 | 11.1 °C |
| February | 4.78 | 5.51 | 4.74 | 5.01 | 12.7 °C |
| March | 6.08 | 5.47 | 4.64 | 5.69 | 16.6 °C |
| April | 7.10 | 4.67 | 3.89 | 5.87 | 20.9 °C |
| May | 7.68 | 3.82 | 3.11 | 5.76 | 25.4 °C |
| June | 8.17 | 3.33 | 2.66 | 5.74 | 28.8 °C |
| July | 8.09 | 3.46 | 2.76 | 5.74 | 30.1 °C |
| August | 7.51 | 4.21 | 3.37 | 5.75 | 30.1 °C |
| September | 6.59 | 5.25 | 4.25 | 5.68 | 27.7 °C |
| October | 5.34 | 5.80 | 4.79 | 5.26 | 23.3 °C |
| November | 4.22 | 5.86 | 4.95 | 4.73 | 17.5 °C |
| December | 3.61 | 5.55 | 4.77 | 4.32 | 12.9 °C |
| Year | 6.09 avg | 4.88 avg | 1483 kWh | 1950 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 440 Wp of panels at 70°, versus 270 Wp at 26°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Sīwah
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.
3.4 mrow pitch at 70°
3.1 mrow pitch at 26°
How Sīwah compares in Egypt
Against the other 235 places in Egypt with climate data, for a fixed array at its best angle.
78thof 236 places in Egypt for sunshine, shared: 6.10 peak sun hours a day on flat ground.
+4%solar energy a year compared with the average place in Egypt: 1,950 against 1,878 kWh per kWp.
−4 mindaylight on the longest day, compared with Cairo: 14 h 01 min against 14 h 05 min.
26°best year-round tilt here; across Egypt it runs from 20° in Hala'ib to 26° in Cairo.
Of the 236 places in Egypt, Aswān gets the most sun (6.52 peak sun hours a day) and ‘Izbat al Burj the least (5.35); Sīwah ranks joint 78th. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 2.66 kWh a day here, against 2.63 kWh on average in Egypt. The shortest day lasts 10 h 17 min, +4 min compared with Cairo.
Solar forecast for Sīwah, 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 Sīwah
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A free, live card for Sīwah: 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.