Solarposition.org

Normandy · France · 49.21° N · 0.31° W

Solar position in Hérouville-Saint-Clair

Sun position, daylight and the best solar panel angle for Hérouville-Saint-Clair — computed for 49.21° N, 0.31° W, 5 m above sea level.

Sunrise today08:36107° ESE
Sunset today18:54253° WSW
Best panel angle38°year-round, facing south
Off-grid angle71°best for the darkest month

The sun right now

Azimuth180.0°
Elevation29.0°
At solar noon, 13:45Open on the sun map

Sun in Hérouville-Saint-Clair today

Saturday, 24 October 2026 · local time UTC+2

EventTimeDirection / height
Astronomical dawn06:49sun 18° below horizon
Nautical dawn07:2612° below
Civil dawn08:036° below
Sunrise08:36107° ESE
Golden hour ends09:21sun 6° up
Solar noon13:4529.0° high
Golden hour starts18:09sun 6° up
Sunset18:54253° WSW
Civil dusk19:266° below
Nautical dusk20:0312° below
Astronomical dusk20:4018° below
Day length10 h 18 min

Sun path diagram for Hérouville-Saint-Clair

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 solstice10111213141516Today
  • June solstice
  • Equinox
  • December solstice
  • Today

On the June solstice the sun reaches 64.2° at solar noon in Hérouville-Saint-Clair; on the December solstice only 17.4°. Sunrise swings from 51° NE in June to 126° SE in December — a 75° 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
January08:4513:1217:398 h 54 min21.0°
February07:5913:1518:3110 h 32 min30.4°
March07:0213:0819:1512 h 13 min41.2°
April06:5814:0021:0214 h 04 min52.8°
May06:1013:5721:4515 h 35 min61.0°
June05:5514:0322:1016 h 14 min64.2°
July06:1914:0721:5515 h 36 min61.2°
August07:0114:0421:0614 h 05 min52.8°
September07:4613:5420:0112 h 15 min41.4°
October08:3113:4518:5910 h 28 min30.0°
November08:2012:4617:138 h 53 min20.9°
December08:5312:5917:058 h 12 min17.4°

A year of daylight in Hérouville-Saint-Clair

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 Hérouville-Saint-Clair

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: 1182 kWh per kWp.

71°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 71°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearDecember kWh/kWp/dayBest ÷ worst month
0°97482%0.588.3×
15°110593%0.925.4×
30°117399%1.214.0×
38° year-round best1182100%1.333.5×
45°117599%1.423.1×
49° = latitude116498%1.462.9×
60°111194%1.542.6×
70°103487%1.572.4×
71° off-grid best102587%1.572.3×
90°81069%1.491.9×

A fixed array in Hérouville-Saint-Clair produces the most over a year at 38°. The design month for an off-grid system is December: at 71° it makes 1.57 kWh per kWp a day, 18% more than at 38°, and costs 13% of the yearly total. Why steep panels win winter.

Off-grid solar in Hérouville-Saint-Clair at 70°

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

012345January: 1.69 (70°)1.7JanFebruary: 2.39 (70°)2.4FebMarch: 3.13 (70°)3.1MarApril: 3.70 (70°)3.7AprMay: 3.45 (70°)3.5MayJune: 3.34 (70°)3.3JunJuly: 3.38 (70°)3.4JulAugust: 3.39 (70°)3.4AugSeptember: 3.48 (70°)3.5SepOctober: 2.56 (70°)2.6OctNovember: 1.89 (70°)1.9NovDecember: 1.57 (70°)1.6Dec38°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 38°Mean temp.
January0.941.931.691.486.1 °C
February1.692.722.392.285.9 °C
March2.913.573.133.307.5 °C
April4.524.273.704.399.9 °C
May5.314.043.454.5512.6 °C
June5.773.963.344.6315.6 °C
July5.664.043.384.6117.6 °C
August4.734.043.394.2118.0 °C
September3.664.113.483.8316.2 °C
October2.082.992.562.5313.4 °C
November1.142.191.891.709.9 °C
December0.771.801.571.337.0 °C
Year3.27 avg3.31 avg1034 kWh1182 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 890 Wp at 38°. The steep array is 15% smaller for the same winter. Size your own system.

Row spacing in Hérouville-Saint-Clair

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.

8.1 mrow pitch at 70°

6.4 mrow pitch at 38°

Row spacing calculator

How Hérouville-Saint-Clair 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.

−6%solar energy a year compared with the average place in France: 1,182 against 1,261 kWh per kWp.

+3 mindaylight on the longest day, compared with Paris: 16 h 14 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); Hérouville-Saint-Clair ranks joint 410th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 1.57 kWh a day here, against 1.86 kWh on average in France. The shortest day lasts 8 h 12 min, −3 min compared with Paris.

The sunniest places in France

Solar forecast for Hérouville-Saint-Clair, 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 Hérouville-Saint-Clair

What is the best solar panel angle in Hérouville-Saint-Clair?
For a fixed array facing south, the best year-round tilt in Hérouville-Saint-Clair is 38°, worth about 1182 kWh per kWp a year. An off-grid system that has to get through December does better at about 71°.
What time is sunrise and sunset in Hérouville-Saint-Clair today?
On 24 October 2026 the sun rises at 08:36 and sets at 18:54 local time (UTC+2), giving 10 h 18 min of daylight. Solar noon is at 13:45.
How many peak sun hours does Hérouville-Saint-Clair 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 1.8 sun hours a day in December.
How high does the sun get in Hérouville-Saint-Clair?
At solar noon the sun stands 64.2° above the horizon on the June solstice and 17.4° on the December solstice.
Is Hérouville-Saint-Clair a good place for solar panels?
With 3.3 peak sun hours a day on flat ground, Hérouville-Saint-Clair ranks joint 410th of 657 places in France for sunshine. A 1 kWp array at the best angle (38°) makes about 1,182 kWh a year here, 6% less than the average place in France.

Places near Hérouville-Saint-Clair

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.