Solarposition.org

Pays de la Loire · France · 47.28° N · 2.22° W

Solar position in Saint-Nazaire

Sun position, daylight and the best solar panel angle for Saint-Nazaire — computed for 47.28° N, 2.22° W, 12 m above sea level.

Sunrise today08:40107° ESE
Sunset today19:05253° WSW
Best panel angle37°year-round, facing south
Off-grid angle69°best for the darkest month

The sun right now

Azimuth180.0°
Elevation30.9°
At solar noon, 13:52Open on the sun map

Sun in Saint-Nazaire today

Saturday, 24 October 2026 · local time UTC+2

EventTimeDirection / height
Astronomical dawn06:57sun 18° below horizon
Nautical dawn07:3312° below
Civil dawn08:086° below
Sunrise08:40107° ESE
Golden hour ends09:23sun 6° up
Solar noon13:5230.9° high
Golden hour starts18:22sun 6° up
Sunset19:05253° WSW
Civil dusk19:366° below
Nautical dusk20:1212° below
Astronomical dusk20:4718° below
Day length10 h 25 min

Sun path diagram for Saint-Nazaire

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 solstice1011121314151617Today
  • June solstice
  • Equinox
  • December solstice
  • Today

On the June solstice the sun reaches 66.2° at solar noon in Saint-Nazaire; on the December solstice only 19.3°. 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
January08:4613:2017:549 h 07 min22.9°
February08:0313:2218:4110 h 38 min32.3°
March07:1013:1619:2212 h 13 min43.1°
April07:0914:0721:0613 h 56 min54.7°
May06:2514:0521:4515 h 20 min63.0°
June06:1214:1022:0815 h 56 min66.2°
July06:3414:1521:5515 h 22 min63.1°
August07:1314:1121:0913 h 57 min54.7°
September07:5414:0120:0812 h 15 min43.3°
October08:3513:5319:1010 h 35 min31.9°
November08:2112:5417:279 h 06 min22.8°
December08:5213:0617:218 h 28 min19.3°

A year of daylight in Saint-Nazaire

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 Saint-Nazaire

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: 1296 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°108083%0.737.0×
15°121994%1.104.8×
30°128999%1.413.6×
37° year-round best1296100%1.523.2×
45°128599%1.632.9×
47° = latitude127899%1.652.8×
60°120893%1.752.4×
69° off-grid best112987%1.762.2×
70°111986%1.762.2×
90°86667%1.651.9×

A fixed array in Saint-Nazaire produces the most over a year at 37°. The design month for an off-grid system is December: at 69° it makes 1.76 kWh per kWp a day, 16% more than at 37°, and costs 13% of the yearly total. Why steep panels win winter.

Off-grid solar in Saint-Nazaire at 70°

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

0123456January: 1.82 (70°)1.8JanFebruary: 2.77 (70°)2.8FebMarch: 3.45 (70°)3.4MarApril: 3.87 (70°)3.9AprMay: 3.61 (70°)3.6MayJune: 3.44 (70°)3.4JunJuly: 3.48 (70°)3.5JulAugust: 3.64 (70°)3.6AugSeptember: 3.90 (70°)3.9SepOctober: 2.87 (70°)2.9OctNovember: 2.19 (70°)2.2NovDecember: 1.76 (70°)1.8Dec37°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 37°Mean temp.
January1.112.091.821.636.9 °C
February2.023.152.772.666.7 °C
March3.283.943.453.668.5 °C
April4.864.473.874.6611.0 °C
May5.764.233.614.8713.9 °C
June6.234.103.444.9217.3 °C
July6.084.183.484.8719.2 °C
August5.234.353.644.6219.1 °C
September4.154.613.904.3217.0 °C
October2.393.362.872.8614.0 °C
November1.392.532.191.9810.3 °C
December0.962.021.761.527.4 °C
Year3.63 avg3.59 avg1119 kWh1296 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 670 Wp of panels at 70°, versus 770 Wp at 37°. The steep array is 14% smaller for the same winter. Size your own system.

Row spacing in Saint-Nazaire

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 Saint-Nazaire compares in France

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

197thof 657 places in France for sunshine, shared: 3.63 peak sun hours a day on flat ground.

+3%solar energy a year compared with the average place in France: 1,296 against 1,261 kWh per kWp.

−15 mindaylight on the longest day, compared with Paris: 15 h 56 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-Nazaire ranks joint 197th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 1.76 kWh a day here, against 1.86 kWh on average in France. The shortest day lasts 8 h 28 min, +13 min compared with Paris.

The sunniest places in France

Solar forecast for Saint-Nazaire, 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 Saint-Nazaire

What is the best solar panel angle in Saint-Nazaire?
For a fixed array facing south, the best year-round tilt in Saint-Nazaire is 37°, worth about 1296 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 Saint-Nazaire today?
On 24 October 2026 the sun rises at 08:40 and sets at 19:05 local time (UTC+2), giving 10 h 25 min of daylight. Solar noon is at 13:52.
How many peak sun hours does Saint-Nazaire get?
On a flat surface 3.6 hours a day averaged over the year, from 1.0 in December to 6.2 in June. Panels tilted at 70° receive 2.0 sun hours a day in December.
How high does the sun get in Saint-Nazaire?
At solar noon the sun stands 66.2° above the horizon on the June solstice and 19.3° on the December solstice.
Is Saint-Nazaire a good place for solar panels?
With 3.6 peak sun hours a day on flat ground, Saint-Nazaire ranks joint 197th of 657 places in France for sunshine. A 1 kWp array at the best angle (37°) makes about 1,296 kWh a year here, 3% more than the average place in France.

Places near Saint-Nazaire

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.