Solarposition.org

Paijat-Hame · Finland · 61.21° N · 26.04° E

Solar position in Heinola

Sun position, daylight and the best solar panel angle for Heinola — computed for 61.21° N, 26.04° E, 104 m above sea level.

Sunrise today07:24114° ESE
Sunset today16:34246° WSW
Best panel angle45°year-round, facing south
Off-grid angle83°best for the darkest month

The sun right now

Azimuth180.0°
Elevation16.7°
At solar noon, 11:59Open on the sun map

Sun in Heinola today

Sunday, 25 October 2026 · local time UTC+3

EventTimeDirection / height
Astronomical dawn04:58sun 18° below horizon
Nautical dawn05:4812° below
Civil dawn06:386° below
Sunrise07:24114° ESE
Golden hour ends08:31sun 6° up
Solar noon11:5916.7° high
Golden hour starts15:27sun 6° up
Sunset16:34246° WSW
Civil dusk17:206° below
Nautical dusk18:1012° below
Astronomical dusk19:0018° below
Day length9 h 10 min

Sun path diagram for Heinola

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 solstice45678910111213141516171819202122EquinoxDecember solstice1011121314Today
  • June solstice
  • Equinox
  • December solstice
  • Today

On the June solstice the sun reaches 52.2° at solar noon in Heinola; on the December solstice only 5.5°. Sunrise swings from 32° NNE in June to 143° SE in December — a 112° 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
January09:0212:2715:526 h 51 min9.0°
February07:4112:2917:189 h 38 min18.4°
March06:1412:2318:3212 h 18 min29.1°
April05:3713:1420:5315 h 16 min40.7°
May04:1413:1222:1117 h 57 min49.0°
June03:3613:1722:5819 h 22 min52.2°
July04:2013:2222:2218 h 02 min49.2°
August05:3913:1820:5715 h 18 min40.8°
September06:5613:0819:1912 h 23 min29.4°
October08:1313:0017:469 h 33 min18.1°
November08:3712:0115:256 h 48 min8.9°
December09:3012:1314:575 h 27 min5.5°

A year of daylight in Heinola

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 Heinola

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

45°collects the most energy over a year: 973 kWh per kWp.

83°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 45°Best worst-month 83°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearDecember kWh/kWp/dayBest ÷ worst month
0°74977%0.0853.1×
15°87290%0.1531.5×
30°94897%0.2122.8×
45° year-round best973100%0.2618.0×
60°94597%0.3014.6×
61° = latitude94297%0.3014.4×
70°89992%0.3112.7×
83° off-grid best80883%0.3210.9×
90°74677%0.3210.6×

A fixed array in Heinola produces the most over a year at 45°. The design month for an off-grid system is December: at 83° it makes 0.32 kWh per kWp a day, 23% more than at 45°, and costs 17% of the yearly total. Why steep panels win winter.

Off-grid solar in Heinola at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 45° (year-round best).

012345January: 0.69 (70°)0.7JanFebruary: 1.75 (70°)1.8FebMarch: 3.56 (70°)3.6MarApril: 3.69 (70°)3.7AprMay: 3.95 (70°)4.0MayJune: 3.68 (70°)3.7JunJuly: 3.64 (70°)3.6JulAugust: 3.40 (70°)3.4AugSeptember: 2.65 (70°)2.7SepOctober: 1.55 (70°)1.5OctNovember: 0.64 (70°)0.6NovDecember: 0.31 (70°)0.3Dec45°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 45°Mean temp.
January snow0.240.770.690.57-8.0 °C
February snow0.821.911.751.55-7.7 °C
March snow2.223.903.563.35-3.6 °C
April3.664.163.694.023.4 °C
May5.034.573.954.6610.1 °C
June5.354.343.684.5114.5 °C
July5.124.353.644.3817.9 °C
August3.964.043.403.8516.4 °C
September2.323.092.652.7411.4 °C
October1.001.771.551.474.6 °C
November snow0.300.740.640.56-0.5 °C
December snow0.120.360.310.26-4.7 °C
Year2.52 avg2.84 avg899 kWh973 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 3,790 Wp of panels at 70°, versus 4,540 Wp at 45°. The steep array is 17% smaller for the same winter. Size your own system.

Row spacing in Heinola

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.

—The winter sun stays too low for rows to be shade-free; use a single row.

Row spacing calculator

How Heinola compares in Finland

Against the other 78 places in Finland with climate data, for a fixed array at its best angle.

40thof 79 places in Finland for sunshine, shared: 2.52 peak sun hours a day on flat ground.

−1%solar energy a year compared with the average place in Finland: 973 against 983 kWh per kWp.

+26 mindaylight on the longest day, compared with Helsinki: 19 h 22 min against 18 h 56 min.

45°best year-round tilt here; across Finland it runs from 43° in Turku to 49° in Rovaniemi.

Of the 79 places in Finland, Rauma gets the most sun (2.75 peak sun hours a day) and Rovaniemi the least (2.25); Heinola ranks joint 40th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 0.31 kWh a day here, against 0.26 kWh on average in Finland. The shortest day lasts 5 h 27 min, −22 min compared with Helsinki.

The sunniest places in Finland

Solar forecast for Heinola, 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 Heinola

What is the best solar panel angle in Heinola?
For a fixed array facing south, the best year-round tilt in Heinola is 45°, worth about 973 kWh per kWp a year. An off-grid system that has to get through December does better at about 83°.
What time is sunrise and sunset in Heinola today?
On 25 October 2026 the sun rises at 07:24 and sets at 16:34 local time (UTC+3), giving 9 h 10 min of daylight. Solar noon is at 11:59.
How many peak sun hours does Heinola get?
On a flat surface 2.5 hours a day averaged over the year, from 0.1 in December to 5.3 in June. Panels tilted at 70° receive 0.4 sun hours a day in December.
How high does the sun get in Heinola?
At solar noon the sun stands 52.2° above the horizon on the June solstice and 5.5° on the December solstice.
Is Heinola a good place for solar panels?
With 2.5 peak sun hours a day on flat ground, Heinola ranks joint 40th of 79 places in Finland for sunshine. A 1 kWp array at the best angle (45°) makes about 973 kWh a year here, 1% less than the average place in Finland.

Places near Heinola

All places in Finland

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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.