New Aquitaine · France · 44.63° N · 1.15° W
Solar position in La Teste-de-Buch
Sun position, daylight and the best solar panel angle for La Teste-de-Buch — computed for 44.63° N, 1.15° W, 5 m above sea level.
The sun right now
Sun in La Teste-de-Buch today
Saturday, 24 October 2026 · local time UTC+2
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 06:53 | sun 18° below horizon |
| Nautical dawn | 07:27 | 12° below |
| Civil dawn | 08:01 | 6° below |
| Sunrise | 08:31 | 106° ESE |
| Golden hour ends | 09:12 | sun 6° up |
| Solar noon | 13:48 | 33.5° high |
| Golden hour starts | 18:24 | sun 6° up |
| Sunset | 19:05 | 254° WSW |
| Civil dusk | 19:35 | 6° below |
| Nautical dusk | 20:09 | 12° below |
| Astronomical dusk | 20:43 | 18° below |
| Day length | 10 h 34 min | |
Sun path diagram for La Teste-de-Buch
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 68.8° at solar noon in La Teste-de-Buch; on the December solstice only 22.0°. Sunrise swings from 55° NE in June to 123° ESE in December — a 68° 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 | 08:34 | 13:16 | 17:57 | 9 h 24 min | 25.6° |
| February | 07:55 | 13:18 | 18:41 | 10 h 46 min | 34.9° |
| March | 07:06 | 13:11 | 19:18 | 12 h 12 min | 45.7° |
| April | 07:10 | 14:03 | 20:56 | 13 h 46 min | 57.3° |
| May | 06:30 | 14:01 | 21:32 | 15 h 02 min | 65.6° |
| June | 06:19 | 14:06 | 21:53 | 15 h 34 min | 68.8° |
| July | 06:39 | 14:10 | 21:42 | 15 h 03 min | 65.8° |
| August | 07:14 | 14:07 | 21:00 | 13 h 47 min | 57.4° |
| September | 07:50 | 13:57 | 20:04 | 12 h 14 min | 46.0° |
| October | 08:27 | 13:48 | 19:10 | 10 h 43 min | 34.6° |
| November | 08:08 | 12:50 | 17:31 | 9 h 22 min | 25.4° |
| December | 08:38 | 13:02 | 17:26 | 8 h 49 min | 22.0° |
A year of daylight in La Teste-de-Buch
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 La Teste-de-Buch
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
35°collects the most energy over a year: 1350 kWh per kWp.
63°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° | 1139 | 84% | 0.94 | 5.5× |
| 15° | 1278 | 95% | 1.37 | 3.8× |
| 30° | 1345 | 100% | 1.72 | 2.9× |
| 35° year-round best | 1350 | 100% | 1.82 | 2.7× |
| 45° = latitude | 1334 | 99% | 1.97 | 2.3× |
| 60° | 1247 | 92% | 2.09 | 2.0× |
| 63° off-grid best | 1221 | 90% | 2.10 | 2.0× |
| 70° | 1150 | 85% | 2.10 | 1.9× |
| 90° | 879 | 65% | 1.95 | 1.6× |
A fixed array in La Teste-de-Buch produces the most over a year at 35°. The design month for an off-grid system is December: at 63° it makes 2.10 kWh per kWp a day, 16% more than at 35°, and costs 10% of the yearly total. Why steep panels win winter.
Off-grid solar in La Teste-de-Buch at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 35° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 35° | Mean temp. |
|---|---|---|---|---|---|
| January | 1.35 | 2.39 | 2.08 | 1.87 | 8.3 °C |
| February | 2.33 | 3.50 | 3.07 | 2.95 | 8.1 °C |
| March | 3.56 | 4.12 | 3.57 | 3.86 | 10.3 °C |
| April | 4.86 | 4.27 | 3.67 | 4.54 | 12.6 °C |
| May | 5.76 | 4.04 | 3.42 | 4.78 | 15.5 °C |
| June | 6.33 | 3.96 | 3.30 | 4.93 | 19.0 °C |
| July | 6.27 | 4.09 | 3.39 | 4.95 | 20.9 °C |
| August | 5.51 | 4.38 | 3.63 | 4.76 | 21.1 °C |
| September | 4.40 | 4.69 | 3.93 | 4.44 | 19.0 °C |
| October | 2.76 | 3.79 | 3.22 | 3.23 | 16.0 °C |
| November | 1.64 | 2.83 | 2.44 | 2.22 | 11.7 °C |
| December | 1.21 | 2.42 | 2.10 | 1.82 | 9.0 °C |
| Year | 3.84 avg | 3.71 avg | 1150 kWh | 1350 kWh |
Sizing example. To run a 1 kWh-per-day load through January on LiFePO4 batteries (charge controller, battery and inverter losses included) you need about 570 Wp of panels at 70°, versus 650 Wp at 35°. The steep array is 13% smaller for the same winter. Size your own system.
Row spacing in La Teste-de-Buch
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.
6.2 mrow pitch at 70°
5.0 mrow pitch at 35°
How La Teste-de-Buch compares in France
Against the other 656 places in France with climate data, for a fixed array at its best angle.
110thof 657 places in France for sunshine, shared: 3.84 peak sun hours a day on flat ground.
+7%solar energy a year compared with the average place in France: 1,350 against 1,261 kWh per kWp.
−37 mindaylight on the longest day, compared with Paris: 15 h 34 min against 16 h 11 min.
35°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); La Teste-de-Buch ranks joint 110th. In its darkest month, January, 1 kWp of off-grid panels at 70° makes 2.08 kWh a day here, against 1.86 kWh on average in France. The shortest day lasts 8 h 49 min, +34 min compared with Paris.
Solar forecast for La Teste-de-Buch, 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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A free, live card for La Teste-de-Buch: 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.