Solarposition.org

Scotland · United Kingdom · 58.22° N · 6.39° W

Solar position in Isle of Lewis

Sun position, daylight and the best solar panel angle for Isle of Lewis — computed for 58.22° N, 6.39° W, 14 m above sea level.

Sunrise today08:21111° ESE
Sunset today17:56248° WSW
Best panel angle41°year-round, facing south
Off-grid angle76°best for the darkest month

The sun right now

Azimuth180.0°
Elevation20.0°
At solar noon, 13:09Open on the sun map

Sun in Isle of Lewis today

Saturday, 24 October 2026 · local time UTC+1

EventTimeDirection / height
Astronomical dawn06:08sun 18° below horizon
Nautical dawn06:5412° below
Civil dawn07:406° below
Sunrise08:21111° ESE
Golden hour ends09:20sun 6° up
Solar noon13:0920.0° high
Golden hour starts16:58sun 6° up
Sunset17:56248° WSW
Civil dusk18:376° below
Nautical dusk19:2312° below
Astronomical dusk20:0918° below
Day length9 h 35 min

Sun path diagram for Isle of Lewis

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 solstice5678910111213141516171819202122EquinoxDecember solstice101112131415Today
  • June solstice
  • Equinox
  • December solstice
  • Today

On the June solstice the sun reaches 55.2° at solar noon in Isle of Lewis; on the December solstice only 8.4°. Sunrise swings from 39° NE in June to 137° SE in December — a 98° 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
January08:5112:3716:227 h 32 min12.0°
February07:4212:3917:379 h 55 min21.4°
March06:2412:3318:4112 h 17 min32.2°
April05:5813:2420:5114 h 54 min43.8°
May04:4813:2221:5717 h 09 min52.0°
June04:1913:2722:3418 h 15 min55.2°
July04:5513:3122:0717 h 12 min52.2°
August06:0013:2820:5514 h 54 min43.8°
September07:0813:1819:2712 h 20 min32.4°
October08:1413:0918:049 h 50 min21.0°
November08:2612:1115:557 h 29 min11.9°
December09:1112:2315:356 h 24 min8.4°

A year of daylight in Isle of Lewis

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 Isle of Lewis

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

41°collects the most energy over a year: 887 kWh per kWp.

76°gives the most in the darkest month — the one an off-grid system is sized for.

20%30%40%50%60%70%80%90%100%0°10°20°30°40°50°60°70°80°90°Best year-round 41°Best worst-month 76°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearDecember kWh/kWp/dayBest ÷ worst month
0°71080%0.1427.4×
15°81392%0.2517.1×
30°87398%0.3412.7×
41° year-round best887100%0.4010.7×
45°885100%0.4210.1×
58° = latitude85897%0.468.5×
60°85096%0.478.3×
70°80190%0.487.3×
76° off-grid best76386%0.486.8×
90°65173%0.475.6×

A fixed array in Isle of Lewis produces the most over a year at 41°. The design month for an off-grid system is December: at 76° it makes 0.48 kWh per kWp a day, 21% more than at 41°, and costs 14% of the yearly total. Why steep panels win winter.

Off-grid solar in Isle of Lewis at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 41° (year-round best).

012345January: 0.71 (70°)0.7JanFebruary: 1.52 (70°)1.5FebMarch: 2.51 (70°)2.5MarApril: 3.32 (70°)3.3AprMay: 3.54 (70°)3.5MayJune: 3.19 (70°)3.2JunJuly: 3.03 (70°)3.0JulAugust: 2.88 (70°)2.9AugSeptember: 2.44 (70°)2.4SepOctober: 1.77 (70°)1.8OctNovember: 0.93 (70°)0.9NovDecember: 0.48 (70°)0.5Dec41°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 41°Mean temp.
January0.330.830.710.606.5 °C
February0.921.751.521.396.1 °C
March2.032.872.512.526.4 °C
April3.583.813.323.707.8 °C
May4.734.093.544.309.5 °C
June4.783.743.194.0411.7 °C
July4.403.573.033.7613.2 °C
August3.593.402.883.3513.5 °C
September2.352.862.442.5712.5 °C
October1.212.061.771.6710.7 °C
November0.471.090.930.808.6 °C
December0.220.580.480.407.2 °C
Year2.39 avg2.56 avg801 kWh887 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 2,450 Wp of panels at 70°, versus 2,940 Wp at 41°. The steep array is 17% smaller for the same winter. Size your own system.

Row spacing in Isle of Lewis

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.

21.4 mrow pitch at 70°

16.0 mrow pitch at 41°

Row spacing calculator

How Isle of Lewis 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.

800thof 802 places in the United Kingdom for sunshine: 2.39 peak sun hours a day on flat ground.

−16%solar energy a year compared with the average place in the United Kingdom: 887 against 1,058 kWh per kWp.

+1 h 37 mindaylight on the longest day, compared with London: 18 h 15 min against 16 h 38 min.

41°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); Isle of Lewis ranks 800th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 0.48 kWh a day here, against 1.32 kWh on average in the United Kingdom. The shortest day lasts 6 h 24 min, −1 h 26 min compared with London.

The sunniest places in the United Kingdom

Solar forecast for Isle of Lewis, 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 Isle of Lewis

What is the best solar panel angle in Isle of Lewis?
For a fixed array facing south, the best year-round tilt in Isle of Lewis is 41°, worth about 887 kWh per kWp a year. An off-grid system that has to get through December does better at about 76°.
What time is sunrise and sunset in Isle of Lewis today?
On 24 October 2026 the sun rises at 08:21 and sets at 17:56 local time (UTC+1), giving 9 h 35 min of daylight. Solar noon is at 13:09.
How many peak sun hours does Isle of Lewis get?
On a flat surface 2.4 hours a day averaged over the year, from 0.2 in December to 4.8 in June. Panels tilted at 70° receive 0.6 sun hours a day in December.
How high does the sun get in Isle of Lewis?
At solar noon the sun stands 55.2° above the horizon on the June solstice and 8.4° on the December solstice.
Is Isle of Lewis a good place for solar panels?
With 2.4 peak sun hours a day on flat ground, Isle of Lewis ranks 800th of 802 places in the United Kingdom for sunshine. A 1 kWp array at the best angle (41°) makes about 887 kWh a year here, 16% less than the average place in the United Kingdom.

Places near Isle of Lewis

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.