Andhra Pradesh · India · 16.07° N · 78.87° E
Solar position in Srīsailain
Sun position, daylight and the best solar panel angle for Srīsailain — computed for 16.07° N, 78.87° E, 440 m above sea level.
The sun right now
Sun in Srīsailain today
Saturday, 24 October 2026 · local time UTC+5:30
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:56 | sun 18° below horizon |
| Nautical dawn | 05:21 | 12° below |
| Civil dawn | 05:46 | 6° below |
| Sunrise | 06:08 | 102° ESE |
| Golden hour ends | 06:38 | sun 6° up |
| Solar noon | 11:58 | 62.2° high |
| Golden hour starts | 17:19 | sun 6° up |
| Sunset | 17:48 | 258° WSW |
| Civil dusk | 18:10 | 6° below |
| Nautical dusk | 18:35 | 12° below |
| Astronomical dusk | 19:00 | 18° below |
| Day length | 11 h 39 min | |
Sun path diagram for Srīsailain
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 Srīsailain; on the December solstice only 50.5°. Sunrise swings from 65° ENE in June to 114° ESE in December — a 49° 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 | 06:45 | 12:25 | 18:05 | 11 h 20 min | 54.1° |
| February | 06:37 | 12:28 | 18:19 | 11 h 42 min | 63.4° |
| March | 06:18 | 12:21 | 18:25 | 12 h 07 min | 74.2° |
| April | 05:55 | 12:13 | 18:30 | 12 h 35 min | 85.8° |
| May | 05:43 | 12:11 | 18:39 | 12 h 56 min | 85.9° |
| June | 05:43 | 12:16 | 18:48 | 13 h 05 min | 82.6° |
| July | 05:52 | 12:20 | 18:49 | 12 h 57 min | 85.6° |
| August | 06:00 | 12:17 | 18:35 | 12 h 35 min | 86.0° |
| September | 06:03 | 12:07 | 18:11 | 12 h 08 min | 74.6° |
| October | 06:08 | 11:59 | 17:50 | 11 h 42 min | 63.2° |
| November | 06:20 | 12:00 | 17:40 | 11 h 20 min | 54.0° |
| December | 06:37 | 12:12 | 17:47 | 11 h 10 min | 50.5° |
A year of daylight in Srīsailain
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 Srīsailain
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
17°collects the most energy over a year: 1593 kWh per kWp.
3°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 | July kWh/kWp/day | Best ÷ worst month |
|---|---|---|---|---|
| 0° | 1537 | 96% | 3.73 | 1.4× |
| 3° off-grid best | 1555 | 98% | 3.71 | 1.4× |
| 15° | 1592 | 100% | 3.54 | 1.5× |
| 16° = latitude | 1592 | 100% | 3.53 | 1.5× |
| 17° year-round best | 1593 | 100% | 3.51 | 1.5× |
| 30° | 1559 | 98% | 3.18 | 1.7× |
| 45° | 1439 | 90% | 2.67 | 1.9× |
| 60° | 1243 | 78% | 2.05 | 2.3× |
| 70° | 1079 | 68% | 1.62 | 2.8× |
| 90° | 741 | 47% | 1.15 | 3.2× |
A fixed array in Srīsailain produces the most over a year at 17°. The design month for an off-grid system is July: at 3° it makes 3.71 kWh per kWp a day, 6% more than at 17°, and costs 2% of the yearly total. Why steep panels win winter.
Off-grid solar in Srīsailain at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 17° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 17° | Mean temp. |
|---|---|---|---|---|---|
| January | 4.89 | 5.32 | 4.40 | 4.59 | 23.0 °C |
| February | 5.81 | 5.29 | 4.33 | 5.15 | 25.8 °C |
| March | 6.32 | 4.38 | 3.52 | 5.18 | 29.5 °C |
| April | 6.65 | 3.19 | 2.52 | 5.04 | 32.2 °C |
| May | 6.45 | 2.32 | 1.80 | 4.64 | 33.4 °C |
| June | 5.45 | 2.03 | 1.60 | 3.95 | 29.3 °C |
| July | 4.74 | 2.05 | 1.62 | 3.51 | 27.8 °C |
| August | 4.79 | 2.39 | 1.91 | 3.65 | 27.0 °C |
| September | 4.94 | 3.08 | 2.49 | 3.96 | 26.4 °C |
| October | 4.90 | 3.92 | 3.20 | 4.18 | 25.4 °C |
| November | 4.71 | 4.77 | 3.94 | 4.32 | 23.4 °C |
| December | 4.50 | 5.08 | 4.22 | 4.27 | 22.2 °C |
| Year | 5.34 avg | 3.64 avg | 1079 kWh | 1593 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 740 Wp of panels at 70°, versus 340 Wp at 17°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Srīsailain
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.
2.4 mrow pitch at 70°
2.5 mrow pitch at 17°
How Srīsailain compares in India
Against the other 3,734 places in India with climate data, for a fixed array at its best angle.
1000thof 3,735 places in India for sunshine, shared: 5.34 peak sun hours a day on flat ground.
+1%solar energy a year compared with the average place in India: 1,593 against 1,575 kWh per kWp.
−12 mindaylight on the longest day, compared with Mumbai: 13 h 05 min against 13 h 17 min.
17°best year-round tilt here; across India it runs from 8° in Tirunelveli to 33° in Leh.
Of the 3,735 places in India, Balotra gets the most sun (5.73 peak sun hours a day) and Jining the least (3.68); Srīsailain ranks joint 1000th. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 1.60 kWh a day here, against 1.70 kWh on average in India. The shortest day lasts 11 h 10 min, +11 min compared with Mumbai.
Solar forecast for Srīsailain, 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 Srīsailain: 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.