Pays de la Loire · France · 47.33° N · 2.43° W
Solar position in Guérande
Sun position, daylight and the best solar panel angle for Guérande — computed for 47.33° N, 2.43° W, 55 m above sea level.
The sun right now
Sun in Guérande today
Saturday, 24 October 2026 · local time UTC+2
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 06:58 | sun 18° below horizon |
| Nautical dawn | 07:33 | 12° below |
| Civil dawn | 08:09 | 6° below |
| Sunrise | 08:41 | 107° ESE |
| Golden hour ends | 09:24 | sun 6° up |
| Solar noon | 13:53 | 30.8° high |
| Golden hour starts | 18:22 | sun 6° up |
| Sunset | 19:06 | 253° WSW |
| Civil dusk | 19:37 | 6° below |
| Nautical dusk | 20:13 | 12° below |
| Astronomical dusk | 20:48 | 18° below |
| Day length | 10 h 25 min | |
Sun path diagram for Guérande
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 66.1° at solar noon in Guérande; 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.
| Month | Sunrise | Solar noon | Sunset | Day length | Noon elevation |
|---|---|---|---|---|---|
| January | 08:47 | 13:21 | 17:54 | 9 h 07 min | 22.9° |
| February | 08:04 | 13:23 | 18:42 | 10 h 38 min | 32.2° |
| March | 07:10 | 13:17 | 19:23 | 12 h 13 min | 43.0° |
| April | 07:10 | 14:08 | 21:07 | 13 h 57 min | 54.6° |
| May | 06:26 | 14:06 | 21:46 | 15 h 20 min | 62.9° |
| June | 06:13 | 14:11 | 22:09 | 15 h 57 min | 66.1° |
| July | 06:34 | 14:16 | 21:56 | 15 h 22 min | 63.1° |
| August | 07:13 | 14:12 | 21:10 | 13 h 57 min | 54.7° |
| September | 07:55 | 14:02 | 20:09 | 12 h 15 min | 43.3° |
| October | 08:36 | 13:54 | 19:11 | 10 h 35 min | 31.9° |
| November | 08:22 | 12:55 | 17:28 | 9 h 06 min | 22.7° |
| December | 08:53 | 13:07 | 17:21 | 8 h 28 min | 19.3° |
A year of daylight in Guérande
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 Guérande
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: 1304 kWh per kWp.
69°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° | 1086 | 83% | 0.72 | 7.1× |
| 15° | 1226 | 94% | 1.09 | 4.8× |
| 30° | 1296 | 99% | 1.39 | 3.7× |
| 37° year-round best | 1304 | 100% | 1.51 | 3.3× |
| 45° | 1292 | 99% | 1.61 | 2.9× |
| 47° = latitude | 1286 | 99% | 1.63 | 2.9× |
| 60° | 1214 | 93% | 1.73 | 2.5× |
| 69° off-grid best | 1135 | 87% | 1.75 | 2.3× |
| 70° | 1125 | 86% | 1.75 | 2.3× |
| 90° | 869 | 67% | 1.64 | 1.9× |
A fixed array in Guérande 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, 16% more than at 37°, and costs 13% of the yearly total. Why steep panels win winter.
Off-grid solar in Guérande at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 37° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 37° | Mean temp. |
|---|---|---|---|---|---|
| January | 1.10 | 2.08 | 1.81 | 1.62 | 7.1 °C |
| February | 2.02 | 3.16 | 2.77 | 2.66 | 6.8 °C |
| March | 3.29 | 3.97 | 3.47 | 3.68 | 8.5 °C |
| April | 4.90 | 4.53 | 3.92 | 4.72 | 11.0 °C |
| May | 5.83 | 4.28 | 3.65 | 4.93 | 13.9 °C |
| June | 6.28 | 4.12 | 3.46 | 4.96 | 17.3 °C |
| July | 6.12 | 4.20 | 3.50 | 4.91 | 19.2 °C |
| August | 5.26 | 4.38 | 3.66 | 4.65 | 19.1 °C |
| September | 4.16 | 4.65 | 3.93 | 4.35 | 17.0 °C |
| October | 2.39 | 3.36 | 2.87 | 2.86 | 14.1 °C |
| November | 1.38 | 2.53 | 2.18 | 1.98 | 10.5 °C |
| December | 0.95 | 2.01 | 1.75 | 1.51 | 7.6 °C |
| Year | 3.65 avg | 3.60 avg | 1125 kWh | 1304 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 780 Wp at 37°. The steep array is 14% smaller for the same winter. Size your own system.
Row spacing in Guérande
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°
How Guérande compares in France
Against the other 656 places in France with climate data, for a fixed array at its best angle.
193rdof 657 places in France for sunshine: 3.65 peak sun hours a day on flat ground.
+3%solar energy a year compared with the average place in France: 1,304 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); Guérande ranks 193rd. 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 28 min, +13 min compared with Paris.
Solar forecast for Guérande, 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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Questions about the sun in Guérande
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Places near Guérande
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A free, live card for Guérande: 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.