Khatlon Province · Tajikistan · 37.46° N · 68.17° E
Solar position in Zarhalol
Sun position, daylight and the best solar panel angle for Zarhalol — computed for 37.46° N, 68.17° E, 414 m above sea level.
The sun right now
Sun in Zarhalol today
Saturday, 24 October 2026 · local time UTC+5
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:16 | sun 18° below horizon |
| Nautical dawn | 05:46 | 12° below |
| Civil dawn | 06:17 | 6° below |
| Sunrise | 06:43 | 104° ESE |
| Golden hour ends | 07:19 | sun 6° up |
| Solar noon | 12:11 | 40.8° high |
| Golden hour starts | 17:02 | sun 6° up |
| Sunset | 17:38 | 256° WSW |
| Civil dusk | 18:05 | 6° below |
| Nautical dusk | 18:35 | 12° below |
| Astronomical dusk | 19:06 | 18° below |
| Day length | 10 h 55 min | |
Sun path diagram for Zarhalol
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 76.0° at solar noon in Zarhalol; on the December solstice only 29.1°. 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 | 07:38 | 12:38 | 17:39 | 10 h 01 min | 32.7° |
| February | 07:09 | 12:41 | 18:12 | 11 h 03 min | 42.0° |
| March | 06:29 | 12:34 | 18:39 | 12 h 10 min | 52.8° |
| April | 05:44 | 12:26 | 19:07 | 13 h 23 min | 64.4° |
| May | 05:13 | 12:23 | 19:34 | 14 h 20 min | 72.7° |
| June | 05:06 | 12:29 | 19:51 | 14 h 45 min | 76.0° |
| July | 05:22 | 12:33 | 19:44 | 14 h 22 min | 73.0° |
| August | 05:48 | 12:30 | 19:12 | 13 h 24 min | 64.6° |
| September | 06:14 | 12:20 | 18:26 | 12 h 12 min | 53.2° |
| October | 06:40 | 12:11 | 17:42 | 11 h 02 min | 41.8° |
| November | 07:12 | 12:12 | 17:13 | 10 h 00 min | 32.6° |
| December | 07:37 | 12:25 | 17:12 | 9 h 35 min | 29.1° |
A year of daylight in Zarhalol
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 Zarhalol
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: 1696 kWh per kWp.
62°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° | 1486 | 88% | 1.65 | 3.8× |
| 15° | 1640 | 97% | 2.27 | 2.7× |
| 30° | 1696 | 100% | 2.76 | 2.1× |
| 31° year-round best | 1696 | 100% | 2.78 | 2.1× |
| 37° = latitude | 1687 | 99% | 2.92 | 2.0× |
| 45° | 1651 | 97% | 3.07 | 1.9× |
| 60° | 1510 | 89% | 3.19 | 1.7× |
| 62° off-grid best | 1485 | 88% | 3.19 | 1.6× |
| 70° | 1368 | 81% | 3.16 | 1.6× |
| 90° | 992 | 58% | 2.84 | 2.5× |
A fixed array in Zarhalol produces the most over a year at 31°. The design month for an off-grid system is December: at 62° it makes 3.19 kWh per kWp a day, 15% more than at 31°, and costs 12% of the yearly total. Why steep panels win winter.
Off-grid solar in Zarhalol 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 | 2.21 | 3.58 | 3.18 | 2.90 | 4.2 °C |
| February | 3.00 | 3.96 | 3.49 | 3.50 | 6.4 °C |
| March | 4.36 | 4.54 | 3.91 | 4.43 | 12.8 °C |
| April | 5.72 | 4.43 | 3.72 | 4.99 | 19.0 °C |
| May | 7.13 | 4.21 | 3.43 | 5.48 | 25.4 °C |
| June | 8.10 | 4.02 | 3.20 | 5.72 | 30.6 °C |
| July | 8.00 | 4.20 | 3.33 | 5.73 | 32.4 °C |
| August | 7.29 | 4.92 | 3.94 | 5.81 | 30.1 °C |
| September | 6.17 | 5.91 | 4.84 | 5.82 | 24.7 °C |
| October | 4.41 | 5.81 | 4.89 | 4.98 | 18.0 °C |
| November | 2.73 | 4.46 | 3.87 | 3.55 | 10.5 °C |
| December | 2.03 | 3.56 | 3.16 | 2.78 | 5.3 °C |
| Year | 5.11 avg | 4.47 avg | 1368 kWh | 1696 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 370 Wp of panels at 70°, versus 420 Wp at 31°. The steep array is 12% smaller for the same winter. Size your own system.
Row spacing in Zarhalol
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 31°
How Zarhalol compares in Tajikistan
Against the other 30 places in Tajikistan with climate data, for a fixed array at its best angle.
1stof 31 places in Tajikistan for sunshine: 5.11 peak sun hours a day on flat ground.
+4%solar energy a year compared with the average place in Tajikistan: 1,696 against 1,633 kWh per kWp.
−7 mindaylight on the longest day, compared with Dushanbe: 14 h 45 min against 14 h 52 min.
31°best year-round tilt here; across Tajikistan it runs from 31° in Dushanbe to 33° in Isfara.
Zarhalol gets the most sun of the 31 places in Tajikistan (5.11 peak sun hours a day); the least sunny is Muchun with 4.60. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 3.16 kWh a day here, against 3.03 kWh on average in Tajikistan. The shortest day lasts 9 h 35 min, +6 min compared with Dushanbe.
Solar forecast for Zarhalol, 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 Zarhalol
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A free, live card for Zarhalol: 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.