Solarposition.org

Centre-Val de Loire · France · 47.37° N · 1.75° E

Solar position in Romorantin-Lanthenay

Sun position, daylight and the best solar panel angle for Romorantin-Lanthenay — computed for 47.37° N, 1.75° E, 95 m above sea level.

Sunrise today08:24107° ESE
Sunset today18:49253° WSW
Best panel angle37°year-round, facing south
Off-grid angle69°best for the darkest month

The sun right now

Azimuth180.0°
Elevation30.8°
At solar noon, 13:36Open on the sun map

Sun in Romorantin-Lanthenay today

Saturday, 24 October 2026 · local time UTC+2

EventTimeDirection / height
Astronomical dawn06:41sun 18° below horizon
Nautical dawn07:1712° below
Civil dawn07:526° below
Sunrise08:24107° ESE
Golden hour ends09:07sun 6° up
Solar noon13:3630.8° high
Golden hour starts18:06sun 6° up
Sunset18:49253° WSW
Civil dusk19:206° below
Nautical dusk19:5612° below
Astronomical dusk20:3118° below
Day length10 h 25 min

Sun path diagram for Romorantin-Lanthenay

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 solstice789101112131415161718192021EquinoxDecember solstice910111213141516Today
  • June solstice
  • Equinox
  • December solstice
  • Today

On the June solstice the sun reaches 66.1° at solar noon in Romorantin-Lanthenay; on the December solstice only 19.2°. Sunrise swings from 53° NE in June to 125° SE in December — a 72° 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
January08:3113:0417:379 h 07 min22.8°
February07:4813:0618:2510 h 38 min32.2°
March06:5413:0019:0612 h 13 min43.0°
April06:5313:5120:5013 h 57 min54.6°
May06:0913:4921:3015 h 20 min62.9°
June05:5613:5421:5315 h 57 min66.1°
July06:1713:5921:4015 h 22 min63.0°
August06:5713:5520:5413 h 57 min54.7°
September07:3813:4519:5312 h 15 min43.2°
October08:2013:3718:5410 h 34 min31.9°
November08:0512:3817:119 h 05 min22.7°
December08:3712:5117:048 h 27 min19.2°

A year of daylight in Romorantin-Lanthenay

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 Romorantin-Lanthenay

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: 1237 kWh per kWp.

69°gives the most in the darkest month — the one an off-grid system is sized for.

40%50%60%70%80%90%100%0°10°20°30°40°50°60°70°80°90°Best year-round 37°Best worst-month 69°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearDecember kWh/kWp/dayBest ÷ worst month
0°102883%0.706.9×
15°116194%1.074.6×
30°122999%1.383.5×
37° year-round best1237100%1.503.1×
45°122899%1.602.8×
47° = latitude122399%1.622.7×
60°115894%1.722.3×
69° off-grid best108588%1.752.1×
70°107587%1.742.1×
90°83868%1.641.8×

A fixed array in Romorantin-Lanthenay produces the most over a year at 37°. The design month for an off-grid system is December: at 69° it makes 1.75 kWh per kWp a day, 17% more than at 37°, and costs 12% of the yearly total. Why steep panels win winter.

Off-grid solar in Romorantin-Lanthenay at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 37° (year-round best).

012345January: 1.86 (70°)1.9JanFebruary: 2.67 (70°)2.7FebMarch: 3.34 (70°)3.3MarApril: 3.60 (70°)3.6AprMay: 3.34 (70°)3.3MayJune: 3.30 (70°)3.3JunJuly: 3.37 (70°)3.4JulAugust: 3.49 (70°)3.5AugSeptember: 3.68 (70°)3.7SepOctober: 2.86 (70°)2.9OctNovember: 2.10 (70°)2.1NovDecember: 1.74 (70°)1.7Dec37°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 37°Mean temp.
January1.082.101.861.643.3 °C
February1.923.012.672.563.8 °C
March3.163.803.343.557.0 °C
April4.554.163.604.3410.5 °C
May5.313.933.344.4714.1 °C
June5.923.953.304.6718.2 °C
July5.864.063.374.6820.4 °C
August5.044.193.494.4120.1 °C
September3.954.343.684.0916.5 °C
October2.353.322.862.8412.3 °C
November1.312.402.101.907.2 °C
December0.911.981.741.503.8 °C
Year3.45 avg3.44 avg1075 kWh1237 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 790 Wp at 37°. The steep array is 14% smaller for the same winter. Size your own system.

Row spacing in Romorantin-Lanthenay

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.

7.2 mrow pitch at 70°

5.8 mrow pitch at 37°

Row spacing calculator

How Romorantin-Lanthenay compares in France

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

257thof 657 places in France for sunshine, shared: 3.45 peak sun hours a day on flat ground.

−2%solar energy a year compared with the average place in France: 1,238 against 1,261 kWh per kWp.

−14 mindaylight on the longest day, compared with Paris: 15 h 57 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); Romorantin-Lanthenay ranks joint 257th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 1.75 kWh a day here, against 1.86 kWh on average in France. The shortest day lasts 8 h 27 min, +13 min compared with Paris.

The sunniest places in France

Solar forecast for Romorantin-Lanthenay, 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 Romorantin-Lanthenay

What is the best solar panel angle in Romorantin-Lanthenay?
For a fixed array facing south, the best year-round tilt in Romorantin-Lanthenay is 37°, worth about 1237 kWh per kWp a year. An off-grid system that has to get through December does better at about 69°.
What time is sunrise and sunset in Romorantin-Lanthenay today?
On 24 October 2026 the sun rises at 08:24 and sets at 18:49 local time (UTC+2), giving 10 h 25 min of daylight. Solar noon is at 13:36.
How many peak sun hours does Romorantin-Lanthenay get?
On a flat surface 3.5 hours a day averaged over the year, from 0.9 in December to 5.9 in June. Panels tilted at 70° receive 2.0 sun hours a day in December.
How high does the sun get in Romorantin-Lanthenay?
At solar noon the sun stands 66.1° above the horizon on the June solstice and 19.2° on the December solstice.
Is Romorantin-Lanthenay a good place for solar panels?
With 3.5 peak sun hours a day on flat ground, Romorantin-Lanthenay ranks joint 257th of 657 places in France for sunshine. A 1 kWp array at the best angle (37°) makes about 1,238 kWh a year here, 2% less than the average place in France.

Places near Romorantin-Lanthenay

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.