Ostrobothnia · Finland · 63.11° N · 21.68° E
Solar position in Korsholm
Sun position, daylight and the best solar panel angle for Korsholm — computed for 63.11° N, 21.68° E, 15 m above sea level.
The sun right now
Sun in Korsholm today
Sunday, 25 October 2026 · local time UTC+3
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:13 | sun 18° below horizon |
| Nautical dawn | 06:06 | 12° below |
| Civil dawn | 07:00 | 6° below |
| Sunrise | 07:49 | 116° ESE |
| Golden hour ends | 09:02 | sun 6° up |
| Solar noon | 12:16 | 14.8° high |
| Golden hour starts | 15:30 | sun 6° up |
| Sunset | 16:44 | 244° WSW |
| Civil dusk | 17:33 | 6° below |
| Nautical dusk | 18:26 | 12° below |
| Astronomical dusk | 19:20 | 18° below |
| Day length | 8 h 55 min | |
Sun path diagram for Korsholm
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 50.3° at solar noon in Korsholm; on the December solstice only 3.7°. Sunrise swings from 25° NNE in June to 148° SSE in December — a 124° 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 | 09:35 | 12:44 | 15:54 | 6 h 19 min | 7.2° |
| February | 08:05 | 12:47 | 17:29 | 9 h 25 min | 16.5° |
| March | 06:31 | 12:40 | 18:51 | 12 h 20 min | 27.2° |
| April | 05:46 | 13:32 | 21:19 | 15 h 34 min | 38.8° |
| May | 04:12 | 13:30 | 22:49 | 18 h 37 min | 47.1° |
| June | 03:23 | 13:35 | 23:46 | 20 h 23 min | 50.3° |
| July | 04:17 | 13:39 | 22:59 | 18 h 42 min | 47.3° |
| August | 05:47 | 13:36 | 21:23 | 15 h 35 min | 38.9° |
| September | 07:13 | 13:25 | 19:37 | 12 h 24 min | 27.5° |
| October | 08:37 | 13:17 | 17:57 | 9 h 20 min | 16.2° |
| November | 09:10 | 12:18 | 15:26 | 6 h 16 min | 7.0° |
| December | 10:11 | 12:31 | 14:50 | 4 h 39 min | 3.7° |
A year of daylight in Korsholm
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 Korsholm
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: 1023 kWh per kWp.
67°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° | 773 | 76% | 0.05 | 99.2× |
| 15° | 909 | 89% | 0.06 | 87.8× |
| 30° | 993 | 97% | 0.07 | 77.6× |
| 45° year-round best | 1023 | 100% | 0.07 | 68.5× |
| 60° | 997 | 97% | 0.08 | 61.2× |
| 63° = latitude | 985 | 96% | 0.08 | 59.7× |
| 67° off-grid best | 965 | 94% | 0.08 | 57.6× |
| 70° | 949 | 93% | 0.08 | 56.1× |
| 90° | 787 | 77% | 0.07 | 48.1× |
A fixed array in Korsholm produces the most over a year at 45°. The design month for an off-grid system is December: at 67° it makes 0.08 kWh per kWp a day, 5% more than at 45°, and costs 6% of the yearly total. Why steep panels win winter.
Off-grid solar in Korsholm at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 45° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 45° | Mean temp. |
|---|---|---|---|---|---|
| January snow | 0.15 | 0.41 | 0.35 | 0.29 | -4.4 °C |
| February snow | 0.74 | 1.82 | 1.65 | 1.44 | -5.4 °C |
| March snow | 2.18 | 4.09 | 3.73 | 3.46 | -2.8 °C |
| April | 3.75 | 4.57 | 4.08 | 4.38 | 2.0 °C |
| May | 5.27 | 4.96 | 4.34 | 5.07 | 7.0 °C |
| June | 5.85 | 4.86 | 4.17 | 5.06 | 11.8 °C |
| July | 5.36 | 4.68 | 3.94 | 4.71 | 16.0 °C |
| August | 4.07 | 4.35 | 3.68 | 4.11 | 15.5 °C |
| September | 2.37 | 3.41 | 2.93 | 2.97 | 11.5 °C |
| October | 0.95 | 1.88 | 1.63 | 1.52 | 5.7 °C |
| November | 0.24 | 0.64 | 0.54 | 0.47 | 1.7 °C |
| December snow | 0.07 | 0.10 | 0.08 | 0.07 | -1.5 °C |
| Year | 2.59 avg | 2.99 avg | 949 kWh | 1023 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 15,240 Wp of panels at 70°, versus 15,950 Wp at 45°. The steep array is 4% smaller for the same winter. Size your own system.
Row spacing in Korsholm
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.
How Korsholm compares in Finland
Against the other 78 places in Finland with climate data, for a fixed array at its best angle.
22ndof 79 places in Finland for sunshine, shared: 2.59 peak sun hours a day on flat ground.
+4%solar energy a year compared with the average place in Finland: 1,023 against 983 kWh per kWp.
+1 h 27 mindaylight on the longest day, compared with Helsinki: 20 h 23 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); Korsholm ranks joint 22nd. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 0.08 kWh a day here, against 0.26 kWh on average in Finland. The shortest day lasts 4 h 39 min, −1 h 10 min compared with Helsinki.
Solar forecast for Korsholm, 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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Questions about the sun in Korsholm
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A free, live card for Korsholm: 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.