Solarposition.org

Wallonia · Belgium · 50.68° N · 4.37° E

Solar position in Braine-l'Alleud

Sun position, daylight and the best solar panel angle for Braine-l'Alleud — computed for 50.68° N, 4.37° E, 93 m above sea level.

Sunrise today08:20108° ESE
Sunset today18:32252° WSW
Best panel angle39°year-round, facing south
Off-grid angle72°best for the darkest month

The sun right now

Azimuth180.0°
Elevation27.5°
At solar noon, 13:26Open on the sun map

Sun in Braine-l'Alleud today

Saturday, 24 October 2026 · local time UTC+2

EventTimeDirection / height
Astronomical dawn06:30sun 18° below horizon
Nautical dawn07:0812° below
Civil dawn07:466° below
Sunrise08:20108° ESE
Golden hour ends09:06sun 6° up
Solar noon13:2627.5° high
Golden hour starts17:45sun 6° up
Sunset18:32252° WSW
Civil dusk19:066° below
Nautical dusk19:4412° below
Astronomical dusk20:2218° below
Day length10 h 12 min

Sun path diagram for Braine-l'Alleud

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 solstice6789101112131415161718192021EquinoxDecember solstice910111213141516Today
  • June solstice
  • Equinox
  • December solstice
  • Today

On the June solstice the sun reaches 62.8° at solar noon in Braine-l'Alleud; on the December solstice only 15.9°. Sunrise swings from 50° NE in June to 128° SE in December — a 78° 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
January08:3212:5417:158 h 43 min19.5°
February07:4312:5618:0910 h 27 min28.9°
March06:4312:4918:5712 h 14 min39.7°
April06:3613:4120:4714 h 11 min51.3°
May05:4613:3921:3215 h 47 min59.6°
June05:2913:4421:5916 h 29 min62.8°
July05:5413:4821:4315 h 49 min59.7°
August06:3913:4520:5014 h 11 min51.3°
September07:2713:3519:4312 h 16 min39.9°
October08:1513:2618:3810 h 23 min28.6°
November08:0712:2816:498 h 42 min19.4°
December08:4112:4016:397 h 58 min15.9°

A year of daylight in Braine-l'Alleud

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 Braine-l'Alleud

Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.

39°collects the most energy over a year: 1108 kWh per kWp.

72°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 39°Best worst-month 72°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearDecember kWh/kWp/dayBest ÷ worst month
0°90782%0.489.4×
15°103193%0.776.0×
30°109899%1.014.5×
39° year-round best1108100%1.133.9×
45°1103100%1.203.5×
51° = latitude108898%1.253.3×
60°104794%1.313.0×
70°97888%1.332.7×
72° off-grid best96187%1.332.6×
90°77370%1.272.2×

A fixed array in Braine-l'Alleud produces the most over a year at 39°. The design month for an off-grid system is December: at 72° it makes 1.33 kWh per kWp a day, 18% more than at 39°, and costs 13% of the yearly total. Why steep panels win winter.

Off-grid solar in Braine-l'Alleud at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 39° (year-round best).

012345January: 1.53 (70°)1.5JanFebruary: 2.19 (70°)2.2FebMarch: 3.05 (70°)3.1MarApril: 3.59 (70°)3.6AprMay: 3.36 (70°)3.4MayJune: 3.24 (70°)3.2JunJuly: 3.22 (70°)3.2JulAugust: 3.22 (70°)3.2AugSeptember: 3.26 (70°)3.3SepOctober: 2.52 (70°)2.5OctNovember: 1.62 (70°)1.6NovDecember: 1.33 (70°)1.3Dec39°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 39°Mean temp.
January0.811.731.531.342.0 °C
February1.502.462.192.082.5 °C
March2.743.463.053.195.4 °C
April4.284.133.594.209.2 °C
May5.063.943.364.3512.9 °C
June5.463.863.244.3916.3 °C
July5.253.863.224.2818.2 °C
August4.413.843.223.9417.8 °C
September3.373.823.263.5614.6 °C
October1.972.912.522.4810.6 °C
November0.971.861.621.466.2 °C
December0.641.511.331.132.8 °C
Year3.05 avg3.12 avg978 kWh1108 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 890 Wp of panels at 70°, versus 1,040 Wp at 39°. The steep array is 15% smaller for the same winter. Size your own system.

Row spacing in Braine-l'Alleud

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.

9.0 mrow pitch at 70°

7.1 mrow pitch at 39°

Row spacing calculator

How Braine-l'Alleud compares in Belgium

Against the other 222 places in Belgium with climate data, for a fixed array at its best angle.

86thof 223 places in Belgium for sunshine, shared: 3.05 peak sun hours a day on flat ground.

±0%solar energy a year compared with the average place in Belgium: 1,108 against 1,112 kWh per kWp.

−2 mindaylight on the longest day, compared with Brussels: 16 h 29 min against 16 h 31 min.

39°best year-round tilt here; across Belgium it runs from 38° in Brugge to 39° in Brussels.

Of the 223 places in Belgium, Knokke-Heist and one other place get the most sun (3.13 peak sun hours a day) and Eupen the least (3.01); Braine-l'Alleud ranks joint 86th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 1.33 kWh a day here, against 1.30 kWh on average in Belgium. The shortest day lasts 7 h 58 min, +2 min compared with Brussels.

The sunniest places in Belgium

Solar forecast for Braine-l'Alleud, 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 Braine-l'Alleud

What is the best solar panel angle in Braine-l'Alleud?
For a fixed array facing south, the best year-round tilt in Braine-l'Alleud is 39°, worth about 1108 kWh per kWp a year. An off-grid system that has to get through December does better at about 72°.
What time is sunrise and sunset in Braine-l'Alleud today?
On 24 October 2026 the sun rises at 08:20 and sets at 18:32 local time (UTC+2), giving 10 h 12 min of daylight. Solar noon is at 13:26.
How many peak sun hours does Braine-l'Alleud get?
On a flat surface 3.0 hours a day averaged over the year, from 0.6 in December to 5.5 in June. Panels tilted at 70° receive 1.5 sun hours a day in December.
How high does the sun get in Braine-l'Alleud?
At solar noon the sun stands 62.8° above the horizon on the June solstice and 15.9° on the December solstice.
Is Braine-l'Alleud a good place for solar panels?
With 3.0 peak sun hours a day on flat ground, Braine-l'Alleud ranks joint 86th of 223 places in Belgium for sunshine. A 1 kWp array at the best angle (39°) makes about 1,108 kWh a year here, as much as the average place in Belgium.

Places near Braine-l'Alleud

All places in Belgium

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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.