Kerala · India · 11.86° N · 75.47° E
Solar position in Irivēri
Sun position, daylight and the best solar panel angle for Irivēri — computed for 11.86° N, 75.47° E, 21 m above sea level.
The sun right now
Sun in Irivēri today
Sunday, 25 October 2026 · local time UTC+5:30
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:07 | sun 18° below horizon |
| Nautical dawn | 05:32 | 12° below |
| Civil dawn | 05:57 | 6° below |
| Sunrise | 06:19 | 102° ESE |
| Golden hour ends | 06:47 | sun 6° up |
| Solar noon | 12:12 | 66.0° high |
| Golden hour starts | 17:36 | sun 6° up |
| Sunset | 18:05 | 258° WSW |
| Civil dusk | 18:26 | 6° below |
| Nautical dusk | 18:51 | 12° below |
| Astronomical dusk | 19:16 | 18° below |
| Day length | 11 h 46 min | |
Sun path diagram for Irivēri
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 78.4° at solar noon in Irivēri; on the December solstice only 54.7°. 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 | 06:53 | 12:39 | 18:25 | 11 h 33 min | 58.3° |
| February | 06:47 | 12:41 | 18:36 | 11 h 49 min | 67.6° |
| March | 06:31 | 12:35 | 18:38 | 12 h 07 min | 78.4° |
| April | 06:13 | 12:26 | 18:40 | 12 h 27 min | 90.0° |
| May | 06:03 | 12:24 | 18:46 | 12 h 43 min | 81.7° |
| June | 06:05 | 12:29 | 18:54 | 12 h 49 min | 78.4° |
| July | 06:12 | 12:34 | 18:56 | 12 h 43 min | 81.4° |
| August | 06:17 | 12:31 | 18:44 | 12 h 27 min | 89.8° |
| September | 06:17 | 12:21 | 18:25 | 12 h 08 min | 78.8° |
| October | 06:18 | 12:12 | 18:07 | 11 h 49 min | 67.4° |
| November | 06:27 | 12:13 | 18:00 | 11 h 32 min | 58.2° |
| December | 06:43 | 12:26 | 18:09 | 11 h 26 min | 54.7° |
A year of daylight in Irivēri
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 Irivēri
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
15°collects the most energy over a year: 1539 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 | 1495 | 97% | 3.05 | 1.7× |
| 12° = latitude | 1537 | 100% | 2.93 | 1.8× |
| 15° year-round best | 1539 | 100% | 2.88 | 1.8× |
| 30° | 1498 | 97% | 2.57 | 2.1× |
| 45° | 1376 | 89% | 2.15 | 2.5× |
| 60° | 1181 | 77% | 1.64 | 3.1× |
| 70° | 1020 | 66% | 1.31 | 3.6× |
| 90° | 698 | 45% | 1.01 | 3.5× |
A fixed array in Irivēri produces the most over a year at 15°. The design month for an off-grid system is July: at 0° it makes 3.05 kWh per kWp a day, 6% more than at 15°, and costs 3% of the yearly total. Why steep panels win winter.
Off-grid solar in Irivēri at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 15° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 15° | Mean temp. |
|---|---|---|---|---|---|
| January | 5.52 | 5.62 | 4.61 | 4.99 | 25.2 °C |
| February | 6.13 | 5.12 | 4.17 | 5.26 | 26.7 °C |
| March | 6.45 | 4.08 | 3.30 | 5.22 | 28.1 °C |
| April | 6.24 | 2.80 | 2.24 | 4.79 | 28.2 °C |
| May | 5.53 | 1.99 | 1.57 | 4.10 | 27.3 °C |
| June | 4.02 | 1.61 | 1.26 | 2.98 | 25.6 °C |
| July | 3.85 | 1.65 | 1.31 | 2.88 | 24.7 °C |
| August | 4.29 | 2.03 | 1.63 | 3.30 | 24.5 °C |
| September | 5.00 | 2.87 | 2.34 | 4.00 | 24.7 °C |
| October | 4.93 | 3.65 | 2.99 | 4.13 | 25.1 °C |
| November | 4.98 | 4.63 | 3.80 | 4.39 | 25.0 °C |
| December | 5.08 | 5.37 | 4.41 | 4.64 | 24.6 °C |
| Year | 5.16 avg | 3.44 avg | 1020 kWh | 1539 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 930 Wp of panels at 70°, versus 410 Wp at 15°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Irivēri
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.
2.2 mrow pitch at 70°
2.3 mrow pitch at 15°
How Irivēri 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.
−2%solar energy a year compared with the average place in India: 1,539 against 1,575 kWh per kWp.
−28 mindaylight on the longest day, compared with Mumbai: 12 h 49 min against 13 h 17 min.
15°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); Irivēri 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 26 min, +27 min compared with Mumbai.
Solar forecast for Irivēri, 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 Irivēri
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Places near Irivēri
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A free, live card for Irivēri: 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.