Kerala · India · 10.47° N · 76.08° E
Solar position in Vadanappally
Sun position, daylight and the best solar panel angle for Vadanappally — computed for 10.47° N, 76.08° E, 14 m above sea level.
The sun right now
Sun in Vadanappally today
Sunday, 25 October 2026 · local time UTC+5:30
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:04 | sun 18° below horizon |
| Nautical dawn | 05:29 | 12° below |
| Civil dawn | 05:53 | 6° below |
| Sunrise | 06:15 | 102° ESE |
| Golden hour ends | 06:43 | sun 6° up |
| Solar noon | 12:09 | 67.4° high |
| Golden hour starts | 17:35 | sun 6° up |
| Sunset | 18:04 | 258° WSW |
| Civil dusk | 18:25 | 6° below |
| Nautical dusk | 18:50 | 12° below |
| Astronomical dusk | 19:15 | 18° below |
| Day length | 11 h 49 min | |
Sun path diagram for Vadanappally
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 77.0° at solar noon in Vadanappally; on the December solstice only 56.1°. Sunrise swings from 66° ENE in June to 114° ESE in December — a 48° 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 | 06:48 | 12:36 | 18:25 | 11 h 37 min | 59.7° |
| February | 06:43 | 12:39 | 18:34 | 11 h 51 min | 69.0° |
| March | 06:29 | 12:32 | 18:36 | 12 h 07 min | 79.8° |
| April | 06:12 | 12:24 | 18:36 | 12 h 25 min | 88.6° |
| May | 06:03 | 12:22 | 18:41 | 12 h 38 min | 80.3° |
| June | 06:05 | 12:27 | 18:49 | 12 h 44 min | 77.0° |
| July | 06:12 | 12:32 | 18:51 | 12 h 39 min | 80.0° |
| August | 06:16 | 12:28 | 18:41 | 12 h 25 min | 88.4° |
| September | 06:14 | 12:18 | 18:22 | 12 h 08 min | 80.2° |
| October | 06:14 | 12:10 | 18:05 | 11 h 51 min | 68.8° |
| November | 06:23 | 12:11 | 17:59 | 11 h 37 min | 59.6° |
| December | 06:38 | 12:23 | 18:09 | 11 h 31 min | 56.1° |
A year of daylight in Vadanappally
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 Vadanappally
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
13°collects the most energy over a year: 1524 kWh per kWp.
0°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° off-grid best | 1492 | 98% | 3.32 | 1.5× |
| 10° = latitude | 1522 | 100% | 3.20 | 1.6× |
| 13° year-round best | 1524 | 100% | 3.15 | 1.6× |
| 15° | 1523 | 100% | 3.11 | 1.7× |
| 30° | 1471 | 97% | 2.75 | 1.9× |
| 45° | 1340 | 88% | 2.27 | 2.3× |
| 60° | 1139 | 75% | 1.70 | 3.0× |
| 70° | 977 | 64% | 1.33 | 3.5× |
| 90° | 667 | 44% | 1.06 | 3.2× |
A fixed array in Vadanappally produces the most over a year at 13°. The design month for an off-grid system is July: at 0° it makes 3.32 kWh per kWp a day, 5% more than at 13°, and costs 2% of the yearly total. Why steep panels win winter.
Off-grid solar in Vadanappally at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 13° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 13° | Mean temp. |
|---|---|---|---|---|---|
| January | 5.49 | 5.40 | 4.42 | 4.85 | 25.6 °C |
| February | 6.08 | 4.92 | 4.01 | 5.15 | 26.9 °C |
| March | 6.28 | 3.86 | 3.12 | 5.05 | 28.2 °C |
| April | 6.00 | 2.65 | 2.12 | 4.61 | 28.4 °C |
| May | 5.31 | 1.91 | 1.51 | 3.97 | 27.6 °C |
| June | 4.25 | 1.60 | 1.26 | 3.16 | 26.2 °C |
| July | 4.19 | 1.68 | 1.33 | 3.15 | 25.3 °C |
| August | 4.61 | 2.06 | 1.65 | 3.55 | 25.1 °C |
| September | 5.16 | 2.88 | 2.33 | 4.12 | 25.4 °C |
| October | 4.89 | 3.53 | 2.88 | 4.05 | 25.7 °C |
| November | 4.78 | 4.26 | 3.48 | 4.12 | 25.6 °C |
| December | 4.95 | 4.99 | 4.09 | 4.39 | 25.3 °C |
| Year | 5.16 avg | 3.30 avg | 977 kWh | 1524 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 940 Wp of panels at 70°, versus 370 Wp at 13°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Vadanappally
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.
2.1 mrow pitch at 70°
2.3 mrow pitch at 13°
How Vadanappally compares in India
Against the other 3,734 places in India with climate data, for a fixed array at its best angle.
2075thof 3,735 places in India for sunshine, shared: 5.16 peak sun hours a day on flat ground.
−3%solar energy a year compared with the average place in India: 1,524 against 1,575 kWh per kWp.
−33 mindaylight on the longest day, compared with Mumbai: 12 h 44 min against 13 h 17 min.
13°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); Vadanappally ranks joint 2075th. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 1.26 kWh a day here, against 1.70 kWh on average in India. The shortest day lasts 11 h 31 min, +32 min compared with Mumbai.
Solar forecast for Vadanappally, 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 Vadanappally
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Places near Vadanappally
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A free, live card for Vadanappally: 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.