Solarposition.org

England · United Kingdom · 51.40° N · 0.42° W

Solar position in Sunbury-on-Thames

Sun position, daylight and the best solar panel angle for Sunbury-on-Thames — computed for 51.40° N, 0.42° W, 12 m above sea level.

Sunrise today07:40108° ESE
Sunset today17:50252° WSW
Best panel angle40°year-round, facing south
Off-grid angle73°best for the darkest month

The sun right now

Azimuth180.0°
Elevation26.8°
At solar noon, 12:45Open on the sun map

Sun in Sunbury-on-Thames today

Saturday, 24 October 2026 · local time UTC+1

EventTimeDirection / height
Astronomical dawn05:49sun 18° below horizon
Nautical dawn06:2712° below
Civil dawn07:066° below
Sunrise07:40108° ESE
Golden hour ends08:28sun 6° up
Solar noon12:4526.8° high
Golden hour starts17:02sun 6° up
Sunset17:50252° WSW
Civil dusk18:246° below
Nautical dusk19:0312° below
Astronomical dusk19:4118° below
Day length10 h 09 min

Sun path diagram for Sunbury-on-Thames

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 solstice56789101112131415161718192021EquinoxDecember solstice9101112131415Today
  • June solstice
  • Equinox
  • December solstice
  • Today

On the June solstice the sun reaches 62.0° at solar noon in Sunbury-on-Thames; on the December solstice only 15.2°. 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.

MonthSunriseSolar noonSunsetDay lengthNoon elevation
January07:5412:1316:328 h 38 min18.8°
February07:0312:1517:2710 h 24 min28.2°
March06:0212:0918:1612 h 14 min39.0°
April05:5313:0020:0814 h 14 min50.6°
May05:0212:5820:5515 h 53 min58.8°
June04:4413:0321:2216 h 37 min62.0°
July05:1013:0821:0515 h 55 min59.0°
August05:5613:0420:1114 h 15 min50.6°
September06:4612:5419:0212 h 16 min39.2°
October07:3512:4517:5610 h 20 min27.8°
November07:2911:4716:058 h 36 min18.7°
December08:0411:5915:557 h 51 min15.2°

A year of daylight in Sunbury-on-Thames

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 Sunbury-on-Thames

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

40°collects the most energy over a year: 1096 kWh per kWp.

73°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 40°Best worst-month 73°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearDecember kWh/kWp/dayBest ÷ worst month
0°88481%0.489.2×
15°101192%0.825.6×
30°108299%1.114.1×
40° year-round best1096100%1.263.4×
45°1093100%1.333.2×
51° = latitude108099%1.392.9×
60°104395%1.462.6×
70°97889%1.502.3×
73° off-grid best95487%1.502.2×
90°78271%1.441.8×

A fixed array in Sunbury-on-Thames produces the most over a year at 40°. The design month for an off-grid system is December: at 73° it makes 1.50 kWh per kWp a day, 19% more than at 40°, and costs 13% of the yearly total. Why steep panels win winter.

Off-grid solar in Sunbury-on-Thames at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 40° (year-round best).

012345January: 1.72 (70°)1.7JanFebruary: 2.26 (70°)2.3FebMarch: 2.95 (70°)3.0MarApril: 3.45 (70°)3.4AprMay: 3.32 (70°)3.3MayJune: 3.24 (70°)3.2JunJuly: 3.21 (70°)3.2JulAugust: 3.13 (70°)3.1AugSeptember: 3.16 (70°)3.2SepOctober: 2.41 (70°)2.4OctNovember: 1.81 (70°)1.8NovDecember: 1.50 (70°)1.5Dec40°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 40°Mean temp.
January0.841.951.721.494.4 °C
February1.512.562.262.144.4 °C
March2.663.362.953.096.1 °C
April4.103.973.454.028.9 °C
May4.943.883.324.2512.1 °C
June5.373.843.244.3315.4 °C
July5.163.843.214.2217.6 °C
August4.253.723.133.8017.4 °C
September3.273.723.163.4514.8 °C
October1.862.802.412.3711.5 °C
November0.992.081.811.617.6 °C
December0.661.711.501.265.1 °C
Year2.98 avg3.12 avg978 kWh1096 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 790 Wp of panels at 70°, versus 930 Wp at 40°. The steep array is 16% smaller for the same winter. Size your own system.

Row spacing in Sunbury-on-Thames

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°

7.6 mrow pitch at 40°

Row spacing calculator

How Sunbury-on-Thames compares in the United Kingdom

Against the other 801 places in the United Kingdom with climate data, for a fixed array at its best angle.

151stof 802 places in the United Kingdom for sunshine, shared: 2.98 peak sun hours a day on flat ground.

+4%solar energy a year compared with the average place in the United Kingdom: 1,096 against 1,058 kWh per kWp.

−1 mindaylight on the longest day, compared with London: 16 h 37 min against 16 h 38 min.

40°best year-round tilt here; across the United Kingdom it runs from 38° in Plymouth to 45° in Elgin.

Of the 802 places in the United Kingdom, Sandown and 2 other places get the most sun (3.23 peak sun hours a day) and Fort William the least (2.32); Sunbury-on-Thames ranks joint 151st. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 1.50 kWh a day here, against 1.32 kWh on average in the United Kingdom. The shortest day lasts 7 h 51 min, +1 min compared with London.

The sunniest places in the United Kingdom

Solar forecast for Sunbury-on-Thames, 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 Sunbury-on-Thames

What is the best solar panel angle in Sunbury-on-Thames?
For a fixed array facing south, the best year-round tilt in Sunbury-on-Thames is 40°, worth about 1096 kWh per kWp a year. An off-grid system that has to get through December does better at about 73°.
What time is sunrise and sunset in Sunbury-on-Thames today?
On 24 October 2026 the sun rises at 07:40 and sets at 17:50 local time (UTC+1), giving 10 h 09 min of daylight. Solar noon is at 12:45.
How many peak sun hours does Sunbury-on-Thames get?
On a flat surface 3.0 hours a day averaged over the year, from 0.7 in December to 5.4 in June. Panels tilted at 70° receive 1.7 sun hours a day in December.
How high does the sun get in Sunbury-on-Thames?
At solar noon the sun stands 62.0° above the horizon on the June solstice and 15.2° on the December solstice.
Is Sunbury-on-Thames a good place for solar panels?
With 3.0 peak sun hours a day on flat ground, Sunbury-on-Thames ranks joint 151st of 802 places in the United Kingdom for sunshine. A 1 kWp array at the best angle (40°) makes about 1,096 kWh a year here, 4% more than the average place in the United Kingdom.

Places near Sunbury-on-Thames

All places in United Kingdom

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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.