Solarposition.org

Reunion · Reunion · 21.22° S · 55.32° E

Solar position in Piton Saint-Leu

Sun position, daylight and the best solar panel angle for Piton Saint-Leu — computed for 21.22° S, 55.32° E, 350 m above sea level.

Sunrise today05:40103° ESE
Sunset today18:25257° WSW
Best panel angle20°year-round, facing north
Off-grid angle33°best for the darkest month

The sun right now

Azimuth180.0°
Elevation80.6°
At solar noon, 12:02Open on the sun map

Sun in Piton Saint-Leu today

Saturday, 24 October 2026 · local time UTC+4

EventTimeDirection / height
Astronomical dawn04:23sun 18° below horizon
Nautical dawn04:5112° below
Civil dawn05:186° below
Sunrise05:40103° ESE
Golden hour ends06:10sun 6° up
Solar noon12:0280.6° high
Golden hour starts17:55sun 6° up
Sunset18:25257° WSW
Civil dusk18:486° below
Nautical dusk19:1512° below
Astronomical dusk19:4218° below
Day length12 h 44 min

Sun path diagram for Piton Saint-Leu

Where the sun stands in the sky: the centre is straight overhead, the outer ring is the horizon. Numbers mark local clock hours.

15°30°45°60°75°N30°60°E120°150°S210°240°W300°330°June solstice891011121314151617EquinoxDecember solstice6789101112131415161718Today
  • June solstice
  • Equinox
  • December solstice
  • Today

On the June solstice the sun reaches 45.4° at solar noon in Piton Saint-Leu; on the December solstice only 87.8°. Sunrise swings from 65° ENE in June to 116° ESE in December — a 51° 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.

MonthSunriseSolar noonSunsetDay lengthNoon elevation
January05:5312:2919:0613 h 12 min88.6°
February06:1212:3218:5212 h 40 min79.3°
March06:2212:2518:2812 h 06 min68.5°
April06:3212:1718:0211 h 30 min56.9°
May06:4412:1517:4611 h 02 min48.6°
June06:5512:2017:4510 h 50 min45.4°
July06:5412:2517:5511 h 01 min48.4°
August06:3712:2218:0611 h 29 min56.7°
September06:0912:1118:1412 h 05 min68.1°
October05:4312:0318:2412 h 41 min79.5°
November05:2812:0418:4013 h 13 min88.7°
December05:3312:1618:5913 h 26 min87.8°

A year of daylight in Piton Saint-Leu

Each column is one day of 2026. Bright: sun above the horizon; soft: civil twilight; line: solar noon. Steps are daylight saving time changes.

00:0003:0006:0009:0012:0015:0018:0021:0000:00JanFebMarAprMayJunJulAugSepOctNovDec

Best solar panel angle in Piton Saint-Leu

Fixed array facing north (azimuth 0°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.

20°collects the most energy over a year: 1730 kWh per kWp.

33°gives the most in the darkest month — the one an off-grid system is sized for.

20%30%40%50%60%70%80%90%100%0°10°20°30°40°50°60°70°80°90°Best year-round 20°Best worst-month 33°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearJune kWh/kWp/dayBest ÷ worst month
0°164295%3.061.9×
15°1725100%3.761.4×
20° year-round best1730100%3.941.4×
21° = latitude1730100%3.971.3×
30°170699%4.221.2×
33° off-grid best169098%4.281.2×
45°158892%4.421.3×
60°138080%4.361.7×
70°120169%4.162.2×
90°81147%3.443.5×

A fixed array in Piton Saint-Leu produces the most over a year at 20°. The design month for an off-grid system is June: at 33° it makes 4.28 kWh per kWp a day, 9% more than at 20°, and costs 2% of the yearly total. Why steep panels win winter.

Off-grid solar in Piton Saint-Leu at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 20° (year-round best).

0123456January: 2.04 (70°)2.0JanFebruary: 2.61 (70°)2.6FebMarch: 3.24 (70°)3.2MarApril: 3.84 (70°)3.8AprMay: 4.07 (70°)4.1MayJune: 4.16 (70°)4.2JunJuly: 4.23 (70°)4.2JulAugust: 4.24 (70°)4.2AugSeptember: 3.86 (70°)3.9SepOctober: 3.04 (70°)3.0OctNovember: 2.22 (70°)2.2NovDecember: 1.89 (70°)1.9Dec20°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 20°Mean temp.
January6.622.542.044.8426.5 °C
February6.433.242.614.9626.8 °C
March5.783.983.244.7926.6 °C
April5.024.703.844.5425.8 °C
May4.244.954.074.1324.5 °C
June3.865.034.163.9423.0 °C
July4.085.094.234.1122.0 °C
August4.875.104.244.6421.7 °C
September5.884.653.865.1622.1 °C
October6.633.703.045.3423.0 °C
November7.072.742.225.2724.2 °C
December7.232.361.895.1825.7 °C
Year5.64 avg4.01 avg1201 kWh1730 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 620 Wp of panels at 70°, versus 300 Wp at 20°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.

Row spacing in Piton Saint-Leu

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.

2.8 mrow pitch at 70°

2.6 mrow pitch at 20°

Row spacing calculator

How Piton Saint-Leu compares in Reunion

Against the other 13 places in Reunion with climate data, for a fixed array at its best angle.

10thof 14 places in Reunion for sunshine: 5.64 peak sun hours a day on flat ground.

±0%solar energy a year compared with the average place in Reunion: 1,730 against 1,733 kWh per kWp.

+1 mindaylight on the longest day, compared with Saint-Denis: 13 h 26 min against 13 h 24 min.

20°best year-round tilt here; across Reunion it runs from 19° in Saint-Denis to 20° in Saint-Paul.

Of the 14 places in Reunion, Le Port and one other place get the most sun (5.71 peak sun hours a day) and Saint-Pierre the least (5.56); Piton Saint-Leu ranks 10th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 1.89 kWh a day here, against 1.88 kWh on average in Reunion. The shortest day lasts 10 h 50 min, −1 min compared with Saint-Denis.

The sunniest places in Reunion

Solar forecast for Piton Saint-Leu, next 48 hours

Expected output of 1 kWp at 70°, computed from the ICON-EU weather model of the Deutscher Wetterdienst (DWD), Europe.

Loading the latest forecast…

Questions about the sun in Piton Saint-Leu

What is the best solar panel angle in Piton Saint-Leu?
For a fixed array facing north, the best year-round tilt in Piton Saint-Leu is 20°, worth about 1730 kWh per kWp a year. An off-grid system that has to get through June does better at about 33°.
What time is sunrise and sunset in Piton Saint-Leu today?
On 24 October 2026 the sun rises at 05:40 and sets at 18:25 local time (UTC+4), giving 12 h 44 min of daylight. Solar noon is at 12:02.
How many peak sun hours does Piton Saint-Leu get?
On a flat surface 5.6 hours a day averaged over the year, from 3.9 in June to 7.2 in December. Panels tilted at 70° receive 2.4 sun hours a day in December.
How high does the sun get in Piton Saint-Leu?
At solar noon the sun stands 45.4° above the horizon on the June solstice and 87.8° on the December solstice.
Is Piton Saint-Leu a good place for solar panels?
With 5.6 peak sun hours a day on flat ground, Piton Saint-Leu ranks 10th of 14 places in Reunion for sunshine. A 1 kWp array at the best angle (20°) makes about 1,730 kWh a year here, as much as the average place in Reunion.

Places near Piton Saint-Leu

All places in Reunion

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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.