Solarposition.org

Grand Est · France · 48.53° N · 7.72° E

Solar position in Illkirch-Graffenstaden

Sun position, daylight and the best solar panel angle for Illkirch-Graffenstaden — computed for 48.53° N, 7.72° E, 143 m above sea level.

Sunrise today08:02107° ESE
Sunset today18:23253° WSW
Best panel angle38°year-round, facing south
Off-grid angle70°best for the darkest month

The sun right now

Azimuth180.0°
Elevation29.7°
At solar noon, 13:13Open on the sun map

Sun in Illkirch-Graffenstaden today

Saturday, 24 October 2026 · local time UTC+2

EventTimeDirection / height
Astronomical dawn06:17sun 18° below horizon
Nautical dawn06:5312° below
Civil dawn07:306° below
Sunrise08:02107° ESE
Golden hour ends08:46sun 6° up
Solar noon13:1329.7° high
Golden hour starts17:39sun 6° up
Sunset18:23253° WSW
Civil dusk18:556° below
Nautical dusk19:3212° below
Astronomical dusk20:0818° below
Day length10 h 21 min

Sun path diagram for Illkirch-Graffenstaden

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 solstice6789101112131415161718192021EquinoxDecember solstice910111213141516Today
  • June solstice
  • Equinox
  • December solstice
  • Today

On the June solstice the sun reaches 64.9° at solar noon in Illkirch-Graffenstaden; on the December solstice only 18.1°. 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.

MonthSunriseSolar noonSunsetDay lengthNoon elevation
January08:1112:4017:108 h 59 min21.7°
February07:2612:4318:0010 h 34 min31.0°
March06:3012:3618:4312 h 13 min41.8°
April06:2713:2820:2814 h 01 min53.4°
May05:4113:2521:1015 h 29 min61.7°
June05:2713:3021:3416 h 08 min64.9°
July05:4913:3521:2015 h 31 min61.9°
August06:3013:3220:3214 h 02 min53.5°
September07:1413:2119:2912 h 15 min42.1°
October07:5813:1318:2810 h 31 min30.7°
November07:4512:1416:438 h 58 min21.5°
December08:1812:2716:368 h 18 min18.1°

A year of daylight in Illkirch-Graffenstaden

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 Illkirch-Graffenstaden

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: 1178 kWh per kWp.

70°gives the most in the darkest month — the one an off-grid system is sized for.

30%40%50%60%70%80%90%100%0°10°20°30°40°50°60°70°80°90°Best year-round 38°Best worst-month 70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearDecember kWh/kWp/dayBest ÷ worst month
0°97683%0.607.9×
15°110394%0.925.3×
30°116999%1.194.0×
38° year-round best1178100%1.303.5×
45°116999%1.383.2×
49° = latitude115898%1.423.0×
60°110494%1.492.6×
70° off-grid best102787%1.512.4×
90°80468%1.421.9×

A fixed array in Illkirch-Graffenstaden produces the most over a year at 38°. The design month for an off-grid system is December: at 70° it makes 1.51 kWh per kWp a day, 16% more than at 38°, and costs 13% of the yearly total. Why steep panels win winter.

Off-grid solar in Illkirch-Graffenstaden at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 38° (year-round best).

012345January: 1.78 (70°)1.8JanFebruary: 2.45 (70°)2.4FebMarch: 3.27 (70°)3.3MarApril: 3.56 (70°)3.6AprMay: 3.29 (70°)3.3MayJune: 3.31 (70°)3.3JunJuly: 3.29 (70°)3.3JulAugust: 3.37 (70°)3.4AugSeptember: 3.44 (70°)3.4SepOctober: 2.68 (70°)2.7OctNovember: 1.80 (70°)1.8NovDecember: 1.51 (70°)1.5Dec38°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 38°Mean temp.
January snow0.981.991.781.550.2 °C
February1.742.742.452.341.1 °C
March3.003.703.273.454.9 °C
April4.404.113.564.259.6 °C
May5.143.873.294.3513.7 °C
June5.813.953.314.6017.8 °C
July5.613.963.294.5019.7 °C
August4.774.033.374.2119.2 °C
September3.634.043.443.8014.8 °C
October2.163.102.682.6610.2 °C
November1.132.051.801.644.9 °C
December0.781.701.511.301.1 °C
Year3.27 avg3.27 avg1027 kWh1178 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 780 Wp of panels at 70°, versus 910 Wp at 38°. The steep array is 14% smaller for the same winter. Size your own system.

Row spacing in Illkirch-Graffenstaden

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°

6.2 mrow pitch at 38°

Row spacing calculator

How Illkirch-Graffenstaden compares in France

Against the other 656 places in France with climate data, for a fixed array at its best angle.

410thof 657 places in France for sunshine, shared: 3.27 peak sun hours a day on flat ground.

−7%solar energy a year compared with the average place in France: 1,178 against 1,261 kWh per kWp.

−3 mindaylight on the longest day, compared with Paris: 16 h 08 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); Illkirch-Graffenstaden ranks joint 410th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 1.51 kWh a day here, against 1.86 kWh on average in France. The shortest day lasts 8 h 18 min, +3 min compared with Paris.

The sunniest places in France

Solar forecast for Illkirch-Graffenstaden, 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 Illkirch-Graffenstaden

What is the best solar panel angle in Illkirch-Graffenstaden?
For a fixed array facing south, the best year-round tilt in Illkirch-Graffenstaden is 38°, worth about 1178 kWh per kWp a year. An off-grid system that has to get through December does better at about 70°.
What time is sunrise and sunset in Illkirch-Graffenstaden today?
On 24 October 2026 the sun rises at 08:02 and sets at 18:23 local time (UTC+2), giving 10 h 21 min of daylight. Solar noon is at 13:13.
How many peak sun hours does Illkirch-Graffenstaden get?
On a flat surface 3.3 hours a day averaged over the year, from 0.8 in December to 5.8 in June. Panels tilted at 70° receive 1.7 sun hours a day in December.
How high does the sun get in Illkirch-Graffenstaden?
At solar noon the sun stands 64.9° above the horizon on the June solstice and 18.1° on the December solstice.
Is Illkirch-Graffenstaden a good place for solar panels?
With 3.3 peak sun hours a day on flat ground, Illkirch-Graffenstaden ranks joint 410th of 657 places in France for sunshine. A 1 kWp array at the best angle (38°) makes about 1,178 kWh a year here, 7% less than the average place in France.

Places near Illkirch-Graffenstaden

All places in France

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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.