Solarposition.org

Leinster · Ireland · 54.00° N · 6.42° W

Solar position in Dundalk

Sun position, daylight and the best solar panel angle for Dundalk — computed for 54.00° N, 6.42° W, 18 m above sea level.

Sunrise today08:10109° ESE
Sunset today18:08251° WSW
Best panel angle42°year-round, facing south
Off-grid angle76°best for the darkest month

The sun right now

Azimuth180.0°
Elevation24.2°
At solar noon, 13:09Open on the sun map

Sun in Dundalk today

Saturday, 24 October 2026 · local time UTC+1

EventTimeDirection / height
Astronomical dawn06:11sun 18° below horizon
Nautical dawn06:5212° below
Civil dawn07:346° below
Sunrise08:10109° ESE
Golden hour ends09:01sun 6° up
Solar noon13:0924.2° high
Golden hour starts17:17sun 6° up
Sunset18:08251° WSW
Civil dusk18:446° below
Nautical dusk19:2512° below
Astronomical dusk20:0618° below
Day length9 h 58 min

Sun path diagram for Dundalk

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 solstice9101112131415Today
  • June solstice
  • Equinox
  • December solstice
  • Today

On the June solstice the sun reaches 59.4° at solar noon in Dundalk; on the December solstice only 12.6°. Sunrise swings from 46° NE in June to 131° SE in December — a 85° 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
January08:2912:3716:458 h 16 min16.2°
February07:3212:3917:4610 h 14 min25.6°
March06:2512:3318:4012 h 15 min36.4°
April06:1113:2420:3814 h 28 min48.0°
May05:1313:2221:3116 h 18 min56.3°
June04:5313:2722:0117 h 09 min59.4°
July05:2113:3221:4116 h 21 min56.4°
August06:1413:2820:4214 h 28 min48.0°
September07:0913:1819:2612 h 18 min36.6°
October08:0413:0918:1410 h 10 min25.2°
November08:0412:1116:188 h 14 min16.1°
December08:4212:2316:047 h 22 min12.6°

A year of daylight in Dundalk

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 Dundalk

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

42°collects the most energy over a year: 1002 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 42°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°79179%0.3411.7×
15°91291%0.636.7×
30°98498%0.894.9×
42° year-round best1002100%1.054.0×
45°1001100%1.083.8×
54° = latitude98598%1.173.3×
60°96396%1.213.1×
70°90991%1.252.7×
76° off-grid best86586%1.252.5×
90°73874%1.222.1×

A fixed array in Dundalk produces the most over a year at 42°. The design month for an off-grid system is December: at 76° it makes 1.25 kWh per kWp a day, 20% more than at 42°, and costs 14% of the yearly total. Why steep panels win winter.

Off-grid solar in Dundalk at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 42° (year-round best).

012345January: 1.49 (70°)1.5JanFebruary: 2.18 (70°)2.2FebMarch: 2.80 (70°)2.8MarApril: 3.31 (70°)3.3AprMay: 3.36 (70°)3.4MayJune: 3.07 (70°)3.1JunJuly: 2.91 (70°)2.9JulAugust: 2.83 (70°)2.8AugSeptember: 2.73 (70°)2.7SepOctober: 2.25 (70°)2.2OctNovember: 1.68 (70°)1.7NovDecember: 1.25 (70°)1.2Dec42°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 42°Mean temp.
January0.651.701.491.285.1 °C
February1.352.482.182.045.0 °C
March2.433.192.802.905.9 °C
April3.813.803.313.798.0 °C
May4.783.903.364.1810.7 °C
June4.873.623.073.9713.4 °C
July4.483.462.913.7114.8 °C
August3.733.352.833.3714.6 °C
September2.803.202.732.9613.0 °C
October1.632.602.252.1910.4 °C
November0.821.931.681.487.5 °C
December0.491.431.251.055.7 °C
Year2.66 avg2.89 avg909 kWh1002 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 940 Wp of panels at 70°, versus 1,120 Wp at 42°. The steep array is 16% smaller for the same winter. Size your own system.

Row spacing in Dundalk

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.

12.0 mrow pitch at 70°

9.6 mrow pitch at 42°

Row spacing calculator

How Dundalk compares in Ireland

Against the other 39 places in Ireland with climate data, for a fixed array at its best angle.

38thof 40 places in Ireland for sunshine: 2.66 peak sun hours a day on flat ground.

−4%solar energy a year compared with the average place in Ireland: 1,002 against 1,044 kWh per kWp.

+9 mindaylight on the longest day, compared with Dublin: 17 h 09 min against 17 h 00 min.

42°best year-round tilt here; across Ireland it runs from 40° in Tralee to 42° in Dublin.

Of the 40 places in Ireland, Carrigaline gets the most sun (2.97 peak sun hours a day) and Letterkenny the least (2.59); Dundalk ranks 38th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 1.25 kWh a day here, against 1.32 kWh on average in Ireland. The shortest day lasts 7 h 22 min, −8 min compared with Dublin.

The sunniest places in Ireland

Solar forecast for Dundalk, 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 Dundalk

What is the best solar panel angle in Dundalk?
For a fixed array facing south, the best year-round tilt in Dundalk is 42°, worth about 1002 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 Dundalk today?
On 24 October 2026 the sun rises at 08:10 and sets at 18:08 local time (UTC+1), giving 9 h 58 min of daylight. Solar noon is at 13:09.
How many peak sun hours does Dundalk get?
On a flat surface 2.7 hours a day averaged over the year, from 0.5 in December to 4.9 in June. Panels tilted at 70° receive 1.4 sun hours a day in December.
How high does the sun get in Dundalk?
At solar noon the sun stands 59.4° above the horizon on the June solstice and 12.6° on the December solstice.
Is Dundalk a good place for solar panels?
With 2.7 peak sun hours a day on flat ground, Dundalk ranks 38th of 40 places in Ireland for sunshine. A 1 kWp array at the best angle (42°) makes about 1,002 kWh a year here, 4% less than the average place in Ireland.

Places near Dundalk

All places in Ireland

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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.