Tehran · Iran · 35.55° N · 51.24° E
Solar position in Eslamshahr
Sun position, daylight and the best solar panel angle for Eslamshahr — computed for 35.55° N, 51.24° E, 1063 m above sea level.
The sun right now
Sun in Eslamshahr today
Saturday, 24 October 2026 · local time UTC+3:30
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:53 | sun 18° below horizon |
| Nautical dawn | 05:23 | 12° below |
| Civil dawn | 05:53 | 6° below |
| Sunrise | 06:19 | 104° ESE |
| Golden hour ends | 06:54 | sun 6° up |
| Solar noon | 11:49 | 42.7° high |
| Golden hour starts | 16:43 | sun 6° up |
| Sunset | 17:18 | 256° WSW |
| Civil dusk | 17:44 | 6° below |
| Nautical dusk | 18:14 | 12° below |
| Astronomical dusk | 18:44 | 18° below |
| Day length | 11 h 00 min | |
Sun path diagram for Eslamshahr
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 77.9° at solar noon in Eslamshahr; on the December solstice only 31.0°. Sunrise swings from 60° ENE in June to 119° ESE in December — a 59° 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 | 12:16 | 17:21 | 10 h 09 min | 34.6° |
| February | 06:45 | 12:18 | 17:52 | 11 h 07 min | 44.0° |
| March | 06:07 | 12:12 | 18:17 | 12 h 10 min | 54.8° |
| April | 05:25 | 12:03 | 18:42 | 13 h 18 min | 66.4° |
| May | 04:56 | 12:01 | 19:07 | 14 h 11 min | 74.7° |
| June | 04:49 | 12:06 | 19:23 | 14 h 34 min | 77.9° |
| July | 05:04 | 12:11 | 19:17 | 14 h 13 min | 74.9° |
| August | 05:28 | 12:08 | 18:47 | 13 h 19 min | 66.5° |
| September | 05:52 | 11:58 | 18:03 | 12 h 12 min | 55.1° |
| October | 06:16 | 11:49 | 17:22 | 11 h 06 min | 43.7° |
| November | 06:46 | 11:50 | 16:55 | 10 h 09 min | 34.5° |
| December | 07:10 | 12:03 | 16:55 | 9 h 45 min | 31.0° |
A year of daylight in Eslamshahr
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 Eslamshahr
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
31°collects the most energy over a year: 1738 kWh per kWp.
60°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° | 1528 | 88% | 2.01 | 3.1× |
| 15° | 1682 | 97% | 2.79 | 2.2× |
| 30° | 1738 | 100% | 3.40 | 1.7× |
| 31° year-round best | 1738 | 100% | 3.43 | 1.7× |
| 36° = latitude | 1731 | 100% | 3.58 | 1.5× |
| 45° | 1692 | 97% | 3.78 | 1.4× |
| 60° off-grid best | 1549 | 89% | 3.92 | 1.3× |
| 70° | 1404 | 81% | 3.88 | 1.4× |
| 90° | 1025 | 59% | 3.47 | 2.3× |
A fixed array in Eslamshahr produces the most over a year at 31°. The design month for an off-grid system is December: at 60° it makes 3.92 kWh per kWp a day, 14% more than at 31°, and costs 11% of the yearly total. Why steep panels win winter.
Off-grid solar in Eslamshahr at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 31° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 31° | Mean temp. |
|---|---|---|---|---|---|
| January | 2.70 | 4.48 | 4.03 | 3.66 | 1.6 °C |
| February | 3.50 | 4.57 | 4.08 | 4.13 | 3.6 °C |
| March | 4.66 | 4.68 | 4.09 | 4.73 | 8.8 °C |
| April | 5.63 | 4.19 | 3.59 | 4.92 | 13.7 °C |
| May | 6.89 | 3.99 | 3.32 | 5.35 | 19.9 °C |
| June | 7.96 | 3.90 | 3.17 | 5.70 | 25.5 °C |
| July | 7.59 | 3.99 | 3.21 | 5.51 | 28.2 °C |
| August | 7.10 | 4.64 | 3.77 | 5.64 | 27.1 °C |
| September | 5.97 | 5.41 | 4.47 | 5.51 | 22.8 °C |
| October | 4.38 | 5.33 | 4.52 | 4.76 | 16.3 °C |
| November | 2.95 | 4.60 | 4.04 | 3.78 | 7.9 °C |
| December | 2.44 | 4.34 | 3.88 | 3.43 | 3.2 °C |
| Year | 5.16 avg | 4.51 avg | 1404 kWh | 1738 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 370 Wp of panels at 70°, versus 340 Wp at 31°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Eslamshahr
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.
4.2 mrow pitch at 70°
3.7 mrow pitch at 31°
How Eslamshahr compares in Iran
Against the other 422 places in Iran with climate data, for a fixed array at its best angle.
266thof 423 places in Iran for sunshine, shared: 5.16 peak sun hours a day on flat ground.
−1%solar energy a year compared with the average place in Iran: 1,738 against 1,760 kWh per kWp.
−1 mindaylight on the longest day, compared with Tehran: 14 h 34 min against 14 h 35 min.
31°best year-round tilt here; across Iran it runs from 24° in Kīsh to 33° in Khūy.
Of the 423 places in Iran, Jālq gets the most sun (6.10 peak sun hours a day) and Bandar-e Anzalī the least (3.92); Eslamshahr ranks joint 266th. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 3.17 kWh a day here, against 2.96 kWh on average in Iran. The shortest day lasts 9 h 45 min, +1 min compared with Tehran.
Solar forecast for Eslamshahr, 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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A free, live card for Eslamshahr: 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.