Île-de-France · France · 48.68° N · 2.35° E
Solar position in Savigny-sur-Orge
Sun position, daylight and the best solar panel angle for Savigny-sur-Orge — computed for 48.68° N, 2.35° E, 71 m above sea level.
The sun right now
Sun in Savigny-sur-Orge today
Saturday, 24 October 2026 · local time UTC+2
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 06:38 | sun 18° below horizon |
| Nautical dawn | 07:15 | 12° below |
| Civil dawn | 07:52 | 6° below |
| Sunrise | 08:24 | 107° ESE |
| Golden hour ends | 09:08 | sun 6° up |
| Solar noon | 13:34 | 29.5° high |
| Golden hour starts | 18:00 | sun 6° up |
| Sunset | 18:44 | 253° WSW |
| Civil dusk | 19:16 | 6° below |
| Nautical dusk | 19:53 | 12° below |
| Astronomical dusk | 20:29 | 18° below |
| Day length | 10 h 20 min | |
Sun path diagram for Savigny-sur-Orge
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 64.8° at solar noon in Savigny-sur-Orge; on the December solstice only 17.9°. Sunrise swings from 52° NE in June to 126° SE in December — a 74° 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 | 08:33 | 13:02 | 17:31 | 8 h 58 min | 21.5° |
| February | 07:47 | 13:04 | 18:21 | 10 h 34 min | 30.9° |
| March | 06:51 | 12:58 | 19:04 | 12 h 13 min | 41.7° |
| April | 06:48 | 13:49 | 20:50 | 14 h 02 min | 53.3° |
| May | 06:02 | 13:47 | 21:32 | 15 h 30 min | 61.6° |
| June | 05:47 | 13:52 | 21:57 | 16 h 09 min | 64.8° |
| July | 06:10 | 13:56 | 21:42 | 15 h 32 min | 61.7° |
| August | 06:52 | 13:53 | 20:54 | 14 h 03 min | 53.3° |
| September | 07:35 | 13:43 | 19:50 | 12 h 15 min | 41.9° |
| October | 08:19 | 13:34 | 18:49 | 10 h 30 min | 30.6° |
| November | 08:07 | 12:36 | 17:04 | 8 h 56 min | 21.4° |
| December | 08:40 | 12:48 | 16:56 | 8 h 16 min | 17.9° |
A year of daylight in Savigny-sur-Orge
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 Savigny-sur-Orge
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
38°collects the most energy over a year: 1185 kWh per kWp.
70°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° | 980 | 83% | 0.60 | 7.9× |
| 15° | 1109 | 94% | 0.94 | 5.2× |
| 30° | 1176 | 99% | 1.22 | 3.9× |
| 38° year-round best | 1185 | 100% | 1.34 | 3.4× |
| 45° | 1177 | 99% | 1.42 | 3.1× |
| 49° = latitude | 1166 | 98% | 1.46 | 2.9× |
| 60° | 1113 | 94% | 1.54 | 2.6× |
| 70° off-grid best | 1035 | 87% | 1.56 | 2.3× |
| 90° | 812 | 68% | 1.48 | 1.9× |
A fixed array in Savigny-sur-Orge produces the most over a year at 38°. The design month for an off-grid system is December: at 70° it makes 1.56 kWh per kWp a day, 17% more than at 38°, and costs 13% of the yearly total. Why steep panels win winter.
Off-grid solar in Savigny-sur-Orge at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 38° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 38° | Mean temp. |
|---|---|---|---|---|---|
| January | 0.96 | 1.89 | 1.67 | 1.48 | 3.0 °C |
| February | 1.75 | 2.79 | 2.48 | 2.37 | 3.6 °C |
| March | 2.98 | 3.65 | 3.20 | 3.39 | 6.7 °C |
| April | 4.52 | 4.22 | 3.66 | 4.36 | 10.3 °C |
| May | 5.23 | 3.95 | 3.36 | 4.43 | 13.7 °C |
| June | 5.78 | 3.94 | 3.31 | 4.59 | 17.4 °C |
| July | 5.59 | 3.98 | 3.31 | 4.50 | 19.4 °C |
| August | 4.77 | 4.03 | 3.37 | 4.20 | 19.0 °C |
| September | 3.71 | 4.14 | 3.52 | 3.88 | 15.6 °C |
| October | 2.19 | 3.16 | 2.72 | 2.69 | 11.7 °C |
| November | 1.16 | 2.16 | 1.88 | 1.70 | 6.9 °C |
| December | 0.79 | 1.77 | 1.56 | 1.34 | 3.6 °C |
| Year | 3.29 avg | 3.31 avg | 1035 kWh | 1185 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 750 Wp of panels at 70°, versus 880 Wp at 38°. The steep array is 14% smaller for the same winter. Size your own system.
Row spacing in Savigny-sur-Orge
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.
7.8 mrow pitch at 70°
6.3 mrow pitch at 38°
How Savigny-sur-Orge compares in France
Against the other 656 places in France with climate data, for a fixed array at its best angle.
321stof 657 places in France for sunshine, shared: 3.29 peak sun hours a day on flat ground.
−6%solar energy a year compared with the average place in France: 1,185 against 1,261 kWh per kWp.
−2 mindaylight on the longest day, compared with Paris: 16 h 09 min against 16 h 11 min.
38°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); Savigny-sur-Orge ranks joint 321st. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 1.56 kWh a day here, against 1.86 kWh on average in France. The shortest day lasts 8 h 16 min, +2 min compared with Paris.
Solar forecast for Savigny-sur-Orge, 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 Savigny-sur-Orge: 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.