Golestan · Iran · 36.79° N · 54.11° E
Solar position in Kord Kūy
Sun position, daylight and the best solar panel angle for Kord Kūy — computed for 36.79° N, 54.11° E, -2 m above sea level.
The sun right now
Sun in Kord Kūy today
Saturday, 24 October 2026 · local time UTC+3:30
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:42 | sun 18° below horizon |
| Nautical dawn | 05:12 | 12° below |
| Civil dawn | 05:42 | 6° below |
| Sunrise | 06:09 | 104° ESE |
| Golden hour ends | 06:44 | sun 6° up |
| Solar noon | 11:37 | 41.4° high |
| Golden hour starts | 16:30 | sun 6° up |
| Sunset | 17:05 | 256° WSW |
| Civil dusk | 17:32 | 6° below |
| Nautical dusk | 18:02 | 12° below |
| Astronomical dusk | 18:32 | 18° below |
| Day length | 10 h 57 min | |
Sun path diagram for Kord Kūy
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 Kord Kūy; 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 | 07:03 | 12:04 | 17:06 | 10 h 04 min | 33.4° |
| February | 06:35 | 12:07 | 17:39 | 11 h 05 min | 42.7° |
| March | 05:56 | 12:00 | 18:05 | 12 h 10 min | 53.5° |
| April | 05:12 | 11:52 | 18:33 | 13 h 21 min | 65.1° |
| May | 04:41 | 11:50 | 18:58 | 14 h 17 min | 73.4° |
| June | 04:34 | 11:55 | 19:15 | 14 h 41 min | 76.6° |
| July | 04:50 | 11:59 | 19:09 | 14 h 19 min | 73.6° |
| August | 05:15 | 11:56 | 18:37 | 13 h 22 min | 65.3° |
| September | 05:40 | 11:46 | 17:52 | 12 h 12 min | 53.9° |
| October | 06:06 | 11:37 | 17:09 | 11 h 03 min | 42.5° |
| November | 06:37 | 11:39 | 16:40 | 10 h 03 min | 33.3° |
| December | 07:02 | 11:51 | 16:40 | 9 h 38 min | 29.8° |
A year of daylight in Kord Kūy
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 Kord Kūy
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
32°collects the most energy over a year: 1577 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° | 1378 | 87% | 1.78 | 3.2× |
| 15° | 1522 | 96% | 2.46 | 2.3× |
| 30° | 1577 | 100% | 2.99 | 1.8× |
| 32° year-round best | 1577 | 100% | 3.04 | 1.7× |
| 37° = latitude | 1571 | 100% | 3.17 | 1.6× |
| 45° | 1541 | 98% | 3.33 | 1.4× |
| 60° | 1416 | 90% | 3.46 | 1.3× |
| 61° off-grid best | 1405 | 89% | 3.46 | 1.3× |
| 70° | 1289 | 82% | 3.42 | 1.3× |
| 90° | 953 | 60% | 3.07 | 2.0× |
A fixed array in Kord Kūy produces the most over a year at 32°. The design month for an off-grid system is December: at 61° it makes 3.46 kWh per kWp a day, 14% more than at 32°, and costs 11% of the yearly total. Why steep panels win winter.
Off-grid solar in Kord Kūy at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 32° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 32° | Mean temp. |
|---|---|---|---|---|---|
| January | 2.44 | 4.01 | 3.56 | 3.26 | 4.7 °C |
| February | 3.16 | 4.10 | 3.62 | 3.68 | 5.8 °C |
| March | 4.18 | 4.21 | 3.66 | 4.21 | 10.1 °C |
| April | 5.11 | 3.91 | 3.33 | 4.46 | 14.7 °C |
| May | 6.36 | 3.86 | 3.20 | 4.97 | 20.5 °C |
| June | 7.19 | 3.76 | 3.06 | 5.24 | 25.0 °C |
| July | 6.79 | 3.80 | 3.06 | 5.02 | 27.3 °C |
| August | 6.42 | 4.37 | 3.55 | 5.15 | 26.9 °C |
| September | 5.33 | 4.90 | 4.04 | 4.92 | 23.3 °C |
| October | 3.98 | 4.89 | 4.13 | 4.33 | 17.6 °C |
| November | 2.75 | 4.32 | 3.76 | 3.52 | 10.6 °C |
| December | 2.19 | 3.88 | 3.42 | 3.04 | 6.3 °C |
| Year | 4.67 avg | 4.17 avg | 1289 kWh | 1577 kWh |
Sizing example. To run a 1 kWh-per-day load through July on LiFePO4 batteries (charge controller, battery and inverter losses included) you need about 390 Wp of panels at 70°, versus 390 Wp at 32°. The steep array is 1% smaller for the same winter. Size your own system.
Row spacing in Kord Kūy
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°
3.8 mrow pitch at 32°
How Kord Kūy compares in Iran
Against the other 422 places in Iran with climate data, for a fixed array at its best angle.
376thof 423 places in Iran for sunshine, shared: 4.67 peak sun hours a day on flat ground.
−10%solar energy a year compared with the average place in Iran: 1,577 against 1,760 kWh per kWp.
+6 mindaylight on the longest day, compared with Tehran: 14 h 41 min against 14 h 35 min.
32°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); Kord Kūy ranks joint 376th. In its darkest month, July, 1 kWp of off-grid panels at 70° makes 3.06 kWh a day here, against 2.96 kWh on average in Iran. The shortest day lasts 9 h 38 min, −6 min compared with Tehran.
Solar forecast for Kord Kūy, 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 Kord Kūy: 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.