Sughd · Tajikistan · 40.13° N · 70.63° E
Solar position in Isfara
Sun position, daylight and the best solar panel angle for Isfara — computed for 40.13° N, 70.63° E, 824 m above sea level.
The sun right now
Sun in Isfara today
Saturday, 24 October 2026 · local time UTC+5
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:06 | sun 18° below horizon |
| Nautical dawn | 05:38 | 12° below |
| Civil dawn | 06:09 | 6° below |
| Sunrise | 06:37 | 105° ESE |
| Golden hour ends | 07:15 | sun 6° up |
| Solar noon | 12:01 | 38.1° high |
| Golden hour starts | 16:47 | sun 6° up |
| Sunset | 17:25 | 255° WSW |
| Civil dusk | 17:53 | 6° below |
| Nautical dusk | 18:24 | 12° below |
| Astronomical dusk | 18:56 | 18° below |
| Day length | 10 h 48 min | |
Sun path diagram for Isfara
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 73.3° at solar noon in Isfara; on the December solstice only 26.5°. Sunrise swings from 58° ENE in June to 121° ESE in December — a 63° 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 | 07:34 | 12:28 | 17:22 | 9 h 48 min | 30.0° |
| February | 07:02 | 12:31 | 17:59 | 10 h 57 min | 39.4° |
| March | 06:19 | 12:24 | 18:30 | 12 h 10 min | 50.2° |
| April | 05:31 | 12:16 | 19:01 | 13 h 31 min | 61.8° |
| May | 04:57 | 12:14 | 19:31 | 14 h 34 min | 70.1° |
| June | 04:48 | 12:19 | 19:50 | 15 h 02 min | 73.3° |
| July | 05:05 | 12:23 | 19:41 | 14 h 36 min | 70.3° |
| August | 05:34 | 12:20 | 19:06 | 13 h 32 min | 62.0° |
| September | 06:03 | 12:10 | 18:16 | 12 h 13 min | 50.5° |
| October | 06:34 | 12:01 | 17:29 | 10 h 55 min | 39.2° |
| November | 07:09 | 12:03 | 16:56 | 9 h 47 min | 30.0° |
| December | 07:36 | 12:15 | 16:54 | 9 h 19 min | 26.5° |
A year of daylight in Isfara
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 Isfara
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
33°collects the most energy over a year: 1620 kWh per kWp.
70°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° | 1403 | 87% | 1.45 | 4.1× |
| 15° | 1555 | 96% | 2.02 | 3.0× |
| 30° | 1618 | 100% | 2.49 | 2.3× |
| 33° year-round best | 1620 | 100% | 2.57 | 2.2× |
| 40° = latitude | 1609 | 99% | 2.74 | 2.1× |
| 45° | 1590 | 98% | 2.84 | 2.0× |
| 60° | 1474 | 91% | 3.03 | 1.7× |
| 70° off-grid best | 1351 | 83% | 3.07 | 1.6× |
| 90° | 1019 | 63% | 2.92 | 2.0× |
A fixed array in Isfara produces the most over a year at 33°. The design month for an off-grid system is December: at 70° it makes 3.07 kWh per kWp a day, 19% more than at 33°, and costs 17% of the yearly total. Why steep panels win winter.
Off-grid solar in Isfara at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 33° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 33° | Mean temp. |
|---|---|---|---|---|---|
| January snow | 1.95 | 3.37 | 3.10 | 2.69 | -5.1 °C |
| February snow | 2.74 | 3.94 | 3.60 | 3.36 | -3.2 °C |
| March | 4.04 | 4.26 | 3.80 | 4.26 | 3.0 °C |
| April | 5.44 | 4.41 | 3.85 | 5.00 | 8.4 °C |
| May | 6.47 | 4.11 | 3.51 | 5.28 | 13.3 °C |
| June | 7.20 | 3.96 | 3.32 | 5.45 | 18.0 °C |
| July | 7.39 | 4.22 | 3.51 | 5.64 | 20.5 °C |
| August | 6.83 | 4.90 | 4.10 | 5.77 | 19.6 °C |
| September | 5.60 | 5.63 | 4.80 | 5.63 | 14.6 °C |
| October | 3.71 | 4.98 | 4.36 | 4.42 | 8.1 °C |
| November | 2.32 | 3.79 | 3.40 | 3.14 | 1.8 °C |
| December snow | 1.75 | 3.35 | 3.07 | 2.57 | -3.4 °C |
| Year | 4.63 avg | 4.24 avg | 1351 kWh | 1620 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 380 Wp of panels at 70°, versus 460 Wp at 33°. The steep array is 16% smaller for the same winter. Size your own system.
Row spacing in Isfara
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.
5.1 mrow pitch at 70°
4.2 mrow pitch at 33°
How Isfara compares in Tajikistan
Against the other 30 places in Tajikistan with climate data, for a fixed array at its best angle.
26thof 31 places in Tajikistan for sunshine, shared: 4.63 peak sun hours a day on flat ground.
−1%solar energy a year compared with the average place in Tajikistan: 1,620 against 1,633 kWh per kWp.
+10 mindaylight on the longest day, compared with Dushanbe: 15 h 02 min against 14 h 52 min.
33°best year-round tilt here; across Tajikistan it runs from 31° in Dushanbe to 33° in Isfara.
Of the 31 places in Tajikistan, Zarhalol gets the most sun (5.11 peak sun hours a day) and Muchun the least (4.60); Isfara ranks joint 26th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 3.07 kWh a day here, against 3.03 kWh on average in Tajikistan. The shortest day lasts 9 h 19 min, −10 min compared with Dushanbe.
Solar forecast for Isfara, 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 Isfara
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A free, live card for Isfara: 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.