Bourgogne · France · 46.73° N · 4.50° E
Solar position in Saint-Leu
Sun position, daylight and the best solar panel angle for Saint-Leu — computed for 46.73° N, 4.50° E, 366 m above sea level.
The sun right now
Sun in Saint-Leu today
Saturday, 24 October 2026 · local time UTC+2
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 06:30 | sun 18° below horizon |
| Nautical dawn | 07:05 | 12° below |
| Civil dawn | 07:41 | 6° below |
| Sunrise | 08:12 | 106° ESE |
| Golden hour ends | 08:54 | sun 6° up |
| Solar noon | 13:25 | 31.4° high |
| Golden hour starts | 17:56 | sun 6° up |
| Sunset | 18:39 | 253° WSW |
| Civil dusk | 19:10 | 6° below |
| Nautical dusk | 19:45 | 12° below |
| Astronomical dusk | 20:20 | 18° below |
| Day length | 10 h 27 min | |
Sun path diagram for 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.
- June solstice
- Equinox
- December solstice
- Today
On the June solstice the sun reaches 66.7° at solar noon in Saint-Leu; on the December solstice only 19.9°. Sunrise swings from 53° NE in June to 124° SE in December — a 71° 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 | 08:18 | 12:53 | 17:28 | 9 h 11 min | 23.5° |
| February | 07:36 | 12:55 | 18:15 | 10 h 40 min | 32.8° |
| March | 06:43 | 12:49 | 18:55 | 12 h 12 min | 43.6° |
| April | 06:44 | 13:40 | 20:38 | 13 h 54 min | 55.2° |
| May | 06:01 | 13:38 | 21:16 | 15 h 16 min | 63.5° |
| June | 05:48 | 13:43 | 21:39 | 15 h 52 min | 66.7° |
| July | 06:09 | 13:48 | 21:26 | 15 h 18 min | 63.7° |
| August | 06:47 | 13:44 | 20:42 | 13 h 55 min | 55.3° |
| September | 07:27 | 13:34 | 19:41 | 12 h 15 min | 43.9° |
| October | 08:08 | 13:26 | 18:44 | 10 h 37 min | 32.5° |
| November | 07:52 | 12:27 | 17:02 | 9 h 10 min | 23.3° |
| December | 08:23 | 12:40 | 16:56 | 8 h 33 min | 19.9° |
A year of daylight in 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.
Best solar panel angle in Saint-Leu
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
37°collects the most energy over a year: 1270 kWh per kWp.
68°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 | December kWh/kWp/day | Best ÷ worst month |
|---|---|---|---|---|
| 0° | 1060 | 83% | 0.73 | 6.9× |
| 15° | 1196 | 94% | 1.09 | 4.7× |
| 30° | 1263 | 99% | 1.39 | 3.6× |
| 37° year-round best | 1270 | 100% | 1.50 | 3.2× |
| 45° | 1259 | 99% | 1.61 | 2.8× |
| 47° = latitude | 1253 | 99% | 1.63 | 2.8× |
| 60° | 1184 | 93% | 1.72 | 2.3× |
| 68° off-grid best | 1116 | 88% | 1.74 | 2.2× |
| 70° | 1097 | 86% | 1.74 | 2.1× |
| 90° | 849 | 67% | 1.62 | 1.8× |
A fixed array in Saint-Leu produces the most over a year at 37°. The design month for an off-grid system is December: at 68° it makes 1.74 kWh per kWp a day, 15% more than at 37°, and costs 12% of the yearly total. Why steep panels win winter.
Off-grid solar in Saint-Leu at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 37° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 37° | Mean temp. |
|---|---|---|---|---|---|
| January | 1.16 | 2.22 | 1.98 | 1.76 | 1.5 °C |
| February | 2.01 | 3.12 | 2.78 | 2.68 | 2.2 °C |
| March | 3.31 | 4.00 | 3.53 | 3.75 | 5.8 °C |
| April | 4.60 | 4.17 | 3.62 | 4.39 | 9.8 °C |
| May | 5.30 | 3.87 | 3.29 | 4.45 | 13.7 °C |
| June | 6.16 | 4.02 | 3.36 | 4.83 | 18.1 °C |
| July | 6.07 | 4.11 | 3.41 | 4.82 | 20.2 °C |
| August | 5.18 | 4.26 | 3.56 | 4.54 | 19.7 °C |
| September | 3.98 | 4.35 | 3.70 | 4.13 | 15.6 °C |
| October | 2.43 | 3.43 | 2.97 | 2.96 | 11.3 °C |
| November | 1.35 | 2.40 | 2.11 | 1.93 | 5.8 °C |
| December | 0.94 | 1.96 | 1.74 | 1.50 | 2.3 °C |
| Year | 3.55 avg | 3.49 avg | 1097 kWh | 1270 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 680 Wp of panels at 70°, versus 780 Wp at 37°. The steep array is 13% smaller for the same winter. Size your own system.
Row spacing in 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.
7.0 mrow pitch at 70°
5.6 mrow pitch at 37°
How Saint-Leu compares in France
Against the other 656 places in France with climate data, for a fixed array at its best angle.
221stof 657 places in France for sunshine, shared: 3.55 peak sun hours a day on flat ground.
+1%solar energy a year compared with the average place in France: 1,270 against 1,261 kWh per kWp.
−19 mindaylight on the longest day, compared with Paris: 15 h 52 min against 16 h 11 min.
37°best year-round tilt here; across France it runs from 33° in Ajaccio to 39° in Lille.
Of the 657 places in France, Marseille 12 and 5 other places get the most sun (4.46 peak sun hours a day) and Maubeuge and one other place the least (3.10); Saint-Leu ranks joint 221st. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 1.74 kWh a day here, against 1.86 kWh on average in France. The shortest day lasts 8 h 33 min, +18 min compared with Paris.
Solar forecast for 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.
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A free, live card for Saint-Leu: 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.