Kohgiluyeh and Boyer-Ahmad · Iran · 30.79° N · 50.57° E
Solar position in Dehdasht
Sun position, daylight and the best solar panel angle for Dehdasht — computed for 30.79° N, 50.57° E, 806 m above sea level.
The sun right now
Sun in Dehdasht today
Saturday, 24 October 2026 · local time UTC+3:30
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:55 | sun 18° below horizon |
| Nautical dawn | 05:23 | 12° below |
| Civil dawn | 05:51 | 6° below |
| Sunrise | 06:16 | 103° ESE |
| Golden hour ends | 06:49 | sun 6° up |
| Solar noon | 11:51 | 47.4° high |
| Golden hour starts | 16:54 | sun 6° up |
| Sunset | 17:27 | 257° WSW |
| Civil dusk | 17:51 | 6° below |
| Nautical dusk | 18:19 | 12° below |
| Astronomical dusk | 18:47 | 18° below |
| Day length | 11 h 11 min | |
Sun path diagram for Dehdasht
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 82.6° at solar noon in Dehdasht; on the December solstice only 35.8°. Sunrise swings from 62° ENE in June to 117° ESE in December — a 55° 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 | 07:04 | 12:19 | 17:33 | 10 h 29 min | 39.4° |
| February | 06:42 | 12:21 | 18:00 | 11 h 17 min | 48.7° |
| March | 06:10 | 12:15 | 18:19 | 12 h 09 min | 59.5° |
| April | 05:33 | 12:06 | 18:39 | 13 h 06 min | 71.1° |
| May | 05:09 | 12:04 | 18:59 | 13 h 50 min | 79.4° |
| June | 05:05 | 12:09 | 19:13 | 14 h 09 min | 82.6° |
| July | 05:18 | 12:14 | 19:09 | 13 h 51 min | 79.6° |
| August | 05:37 | 12:10 | 18:43 | 13 h 06 min | 71.3° |
| September | 05:55 | 12:00 | 18:05 | 12 h 11 min | 59.9° |
| October | 06:14 | 11:52 | 17:30 | 11 h 16 min | 48.5° |
| November | 06:39 | 11:53 | 17:07 | 10 h 29 min | 39.3° |
| December | 07:01 | 12:05 | 17:10 | 10 h 09 min | 35.8° |
A year of daylight in Dehdasht
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 Dehdasht
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
27°collects the most energy over a year: 1844 kWh per kWp.
49°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° | 1667 | 90% | 2.51 | 2.6× |
| 15° | 1809 | 98% | 3.36 | 1.9× |
| 27° year-round best | 1844 | 100% | 3.88 | 1.5× |
| 30° | 1842 | 100% | 3.99 | 1.4× |
| 31° = latitude | 1841 | 100% | 4.02 | 1.4× |
| 45° | 1767 | 96% | 4.36 | 1.3× |
| 49° off-grid best | 1729 | 94% | 4.41 | 1.3× |
| 60° | 1589 | 86% | 4.46 | 1.5× |
| 70° | 1420 | 77% | 4.36 | 1.8× |
| 90° | 999 | 54% | 3.82 | 3.3× |
A fixed array in Dehdasht produces the most over a year at 27°. The design month for an off-grid system is December: at 49° it makes 4.41 kWh per kWp a day, 14% more than at 27°, and costs 6% of the yearly total. Why steep panels win winter.
Off-grid solar in Dehdasht at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 27° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 27° | Mean temp. |
|---|---|---|---|---|---|
| January | 3.22 | 4.84 | 4.23 | 3.90 | 9.4 °C |
| February | 4.12 | 4.94 | 4.28 | 4.45 | 11.0 °C |
| March | 5.40 | 5.05 | 4.30 | 5.18 | 15.2 °C |
| April | 6.15 | 4.18 | 3.48 | 5.13 | 20.2 °C |
| May | 7.58 | 3.83 | 3.10 | 5.65 | 26.7 °C |
| June | 8.45 | 3.48 | 2.75 | 5.82 | 31.7 °C |
| July | 7.93 | 3.63 | 2.85 | 5.56 | 33.9 °C |
| August | 7.49 | 4.35 | 3.44 | 5.68 | 33.4 °C |
| September | 6.63 | 5.47 | 4.39 | 5.74 | 29.9 °C |
| October | 5.25 | 5.98 | 4.91 | 5.28 | 24.5 °C |
| November | 3.71 | 5.44 | 4.62 | 4.34 | 16.5 °C |
| December | 3.09 | 5.04 | 4.36 | 3.88 | 11.5 °C |
| Year | 5.76 avg | 4.68 avg | 1420 kWh | 1844 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 430 Wp of panels at 70°, versus 300 Wp at 27°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Dehdasht
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.
3.6 mrow pitch at 70°
3.2 mrow pitch at 27°
How Dehdasht compares in Iran
Against the other 422 places in Iran with climate data, for a fixed array at its best angle.
90thof 423 places in Iran for sunshine, shared: 5.76 peak sun hours a day on flat ground.
+5%solar energy a year compared with the average place in Iran: 1,844 against 1,760 kWh per kWp.
−26 mindaylight on the longest day, compared with Tehran: 14 h 09 min against 14 h 35 min.
27°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); Dehdasht ranks joint 90th. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 2.75 kWh a day here, against 2.96 kWh on average in Iran. The shortest day lasts 10 h 09 min, +25 min compared with Tehran.
Solar forecast for Dehdasht, 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 Dehdasht: 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.