Tamil Nadu · India · 11.12° N · 77.37° E
Solar position in Mannarai
Sun position, daylight and the best solar panel angle for Mannarai — computed for 11.12° N, 77.37° E, 296 m above sea level.
The sun right now
Sun in Mannarai today
Saturday, 24 October 2026 · local time UTC+5:30
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:59 | sun 18° below horizon |
| Nautical dawn | 05:24 | 12° below |
| Civil dawn | 05:49 | 6° below |
| Sunrise | 06:10 | 102° ESE |
| Golden hour ends | 06:39 | sun 6° up |
| Solar noon | 12:04 | 67.1° high |
| Golden hour starts | 17:30 | sun 6° up |
| Sunset | 17:58 | 258° WSW |
| Civil dusk | 18:20 | 6° below |
| Nautical dusk | 18:45 | 12° below |
| Astronomical dusk | 19:09 | 18° below |
| Day length | 11 h 48 min | |
Sun path diagram for Mannarai
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 77.7° at solar noon in Mannarai; on the December solstice only 55.5°. 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 | 06:44 | 12:31 | 18:19 | 11 h 35 min | 59.0° |
| February | 06:39 | 12:34 | 18:29 | 11 h 50 min | 68.4° |
| March | 06:24 | 12:27 | 18:31 | 12 h 07 min | 79.2° |
| April | 06:06 | 12:19 | 18:32 | 12 h 26 min | 89.2° |
| May | 05:56 | 12:17 | 18:37 | 12 h 40 min | 80.9° |
| June | 05:58 | 12:22 | 18:45 | 12 h 47 min | 77.7° |
| July | 06:06 | 12:26 | 18:47 | 12 h 41 min | 80.7° |
| August | 06:10 | 12:23 | 18:36 | 12 h 26 min | 89.0° |
| September | 06:09 | 12:13 | 18:17 | 12 h 08 min | 79.6° |
| October | 06:10 | 12:05 | 17:59 | 11 h 50 min | 68.2° |
| November | 06:18 | 12:06 | 17:53 | 11 h 35 min | 59.0° |
| December | 06:34 | 12:18 | 18:02 | 11 h 29 min | 55.5° |
A year of daylight in Mannarai
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 Mannarai
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
12°collects the most energy over a year: 1595 kWh per kWp.
8°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° | 1568 | 98% | 3.92 | 1.4× |
| 8° off-grid best | 1593 | 100% | 3.80 | 1.4× |
| 11° = latitude | 1595 | 100% | 3.74 | 1.4× |
| 12° year-round best | 1595 | 100% | 3.72 | 1.4× |
| 15° | 1593 | 100% | 3.65 | 1.5× |
| 30° | 1531 | 96% | 3.20 | 1.7× |
| 45° | 1384 | 87% | 2.60 | 2.0× |
| 60° | 1166 | 73% | 1.90 | 2.6× |
| 70° | 992 | 62% | 1.45 | 3.2× |
| 90° | 672 | 42% | 1.14 | 3.1× |
A fixed array in Mannarai produces the most over a year at 12°. The design month for an off-grid system is July: at 8° it makes 3.80 kWh per kWp a day, 2% more than at 12°, and costs 0% of the yearly total. Why steep panels win winter.
Off-grid solar in Mannarai at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 12° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 12° | Mean temp. |
|---|---|---|---|---|---|
| January | 5.35 | 5.34 | 4.42 | 4.76 | 23.1 °C |
| February | 6.13 | 5.07 | 4.16 | 5.24 | 25.3 °C |
| March | 6.43 | 3.99 | 3.23 | 5.19 | 28.2 °C |
| April | 6.31 | 2.74 | 2.18 | 4.85 | 29.6 °C |
| May | 5.94 | 1.94 | 1.53 | 4.44 | 28.2 °C |
| June | 5.26 | 1.74 | 1.37 | 3.92 | 26.3 °C |
| July | 4.93 | 1.84 | 1.45 | 3.72 | 25.7 °C |
| August | 5.12 | 2.21 | 1.77 | 3.95 | 25.6 °C |
| September | 5.45 | 3.05 | 2.48 | 4.36 | 25.6 °C |
| October | 4.97 | 3.63 | 2.97 | 4.13 | 24.9 °C |
| November | 4.49 | 4.02 | 3.32 | 3.88 | 23.3 °C |
| December | 4.57 | 4.62 | 3.83 | 4.07 | 22.4 °C |
| Year | 5.41 avg | 3.34 avg | 992 kWh | 1595 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 860 Wp of panels at 70°, versus 320 Wp at 12°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Mannarai
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 12°
How Mannarai compares in India
Against the other 3,734 places in India with climate data, for a fixed array at its best angle.
626thof 3,735 places in India for sunshine, shared: 5.41 peak sun hours a day on flat ground.
+1%solar energy a year compared with the average place in India: 1,595 against 1,575 kWh per kWp.
−30 mindaylight on the longest day, compared with Mumbai: 12 h 47 min against 13 h 17 min.
12°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); Mannarai ranks joint 626th. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 1.37 kWh a day here, against 1.70 kWh on average in India. The shortest day lasts 11 h 29 min, +30 min compared with Mumbai.
Solar forecast for Mannarai, 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 Mannarai
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Places near Mannarai
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A free, live card for Mannarai: 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.