Flanders · Belgium · 51.35° N · 3.27° E
Solar position in Knokke-Heist
Sun position, daylight and the best solar panel angle for Knokke-Heist — computed for 51.35° N, 3.27° E, 5 m above sea level.
The sun right now
Sun in Knokke-Heist today
Saturday, 24 October 2026 · local time UTC+2
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 06:34 | sun 18° below horizon |
| Nautical dawn | 07:12 | 12° below |
| Civil dawn | 07:51 | 6° below |
| Sunrise | 08:25 | 108° ESE |
| Golden hour ends | 09:13 | sun 6° up |
| Solar noon | 13:30 | 26.8° high |
| Golden hour starts | 17:48 | sun 6° up |
| Sunset | 18:35 | 252° WSW |
| Civil dusk | 19:09 | 6° below |
| Nautical dusk | 19:48 | 12° below |
| Astronomical dusk | 20:26 | 18° below |
| Day length | 10 h 10 min | |
Sun path diagram for Knokke-Heist
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 62.1° at solar noon in Knokke-Heist; on the December solstice only 15.3°. Sunrise swings from 49° NE in June to 128° SE in December — a 79° 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 | 08:39 | 12:58 | 17:17 | 8 h 38 min | 18.9° |
| February | 07:48 | 13:00 | 18:13 | 10 h 24 min | 28.2° |
| March | 06:47 | 12:54 | 19:01 | 12 h 14 min | 39.0° |
| April | 06:39 | 13:45 | 20:53 | 14 h 14 min | 50.6° |
| May | 05:47 | 13:43 | 21:40 | 15 h 53 min | 58.9° |
| June | 05:30 | 13:48 | 22:07 | 16 h 37 min | 62.1° |
| July | 05:55 | 13:53 | 21:50 | 15 h 55 min | 59.1° |
| August | 06:42 | 13:49 | 20:56 | 14 h 15 min | 50.7° |
| September | 07:31 | 13:39 | 19:47 | 12 h 16 min | 39.3° |
| October | 08:20 | 13:31 | 18:41 | 10 h 21 min | 27.9° |
| November | 08:14 | 12:32 | 16:50 | 8 h 37 min | 18.7° |
| December | 08:49 | 12:44 | 16:40 | 7 h 51 min | 15.3° |
A year of daylight in Knokke-Heist
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 Knokke-Heist
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: 1132 kWh per kWp.
72°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° | 930 | 82% | 0.43 | 10.9× |
| 15° | 1055 | 93% | 0.69 | 7.1× |
| 30° | 1122 | 99% | 0.91 | 5.3× |
| 38° year-round best | 1132 | 100% | 1.00 | 4.7× |
| 45° | 1125 | 99% | 1.07 | 4.2× |
| 51° = latitude | 1109 | 98% | 1.12 | 3.9× |
| 60° | 1066 | 94% | 1.17 | 3.6× |
| 70° | 994 | 88% | 1.19 | 3.2× |
| 72° off-grid best | 977 | 86% | 1.19 | 3.2× |
| 90° | 783 | 69% | 1.13 | 2.6× |
A fixed array in Knokke-Heist produces the most over a year at 38°. The design month for an off-grid system is December: at 72° it makes 1.19 kWh per kWp a day, 19% more than at 38°, and costs 14% of the yearly total. Why steep panels win winter.
Off-grid solar in Knokke-Heist at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 38° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 38° | Mean temp. |
|---|---|---|---|---|---|
| January | 0.78 | 1.64 | 1.44 | 1.24 | 4.8 °C |
| February | 1.48 | 2.43 | 2.14 | 2.02 | 4.7 °C |
| March | 2.78 | 3.55 | 3.12 | 3.24 | 6.3 °C |
| April | 4.50 | 4.41 | 3.84 | 4.47 | 9.3 °C |
| May | 5.34 | 4.19 | 3.59 | 4.65 | 12.5 °C |
| June | 5.74 | 4.07 | 3.44 | 4.67 | 15.5 °C |
| July | 5.47 | 4.05 | 3.39 | 4.52 | 17.7 °C |
| August | 4.57 | 4.03 | 3.38 | 4.13 | 18.1 °C |
| September | 3.37 | 3.86 | 3.27 | 3.55 | 16.0 °C |
| October | 1.89 | 2.77 | 2.37 | 2.32 | 12.8 °C |
| November | 0.92 | 1.74 | 1.50 | 1.34 | 8.9 °C |
| December | 0.59 | 1.37 | 1.19 | 1.00 | 5.9 °C |
| Year | 3.13 avg | 3.18 avg | 994 kWh | 1132 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 990 Wp of panels at 70°, versus 1,180 Wp at 38°. The steep array is 16% smaller for the same winter. Size your own system.
Row spacing in Knokke-Heist
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.
9.5 mrow pitch at 70°
7.3 mrow pitch at 38°
How Knokke-Heist compares in Belgium
Against the other 222 places in Belgium with climate data, for a fixed array at its best angle.
1stof 223 places in Belgium for sunshine, shared: 3.13 peak sun hours a day on flat ground.
+2%solar energy a year compared with the average place in Belgium: 1,132 against 1,112 kWh per kWp.
+5 mindaylight on the longest day, compared with Brussels: 16 h 37 min against 16 h 31 min.
38°best year-round tilt here; across Belgium it runs from 38° in Brugge to 39° in Brussels.
Knokke-Heist shares the top spot for sunshine among the 223 places in Belgium (3.13 peak sun hours a day); the least sunny is Eupen with 3.01. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 1.19 kWh a day here, against 1.30 kWh on average in Belgium. The shortest day lasts 7 h 51 min, −5 min compared with Brussels.
Solar forecast for Knokke-Heist, 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 Knokke-Heist: 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.