North Savo · Finland · 63.56° N · 27.19° E
Solar position in Iisalmi
Sun position, daylight and the best solar panel angle for Iisalmi — computed for 63.56° N, 27.19° E, 108 m above sea level.
The sun right now
Sun in Iisalmi today
Saturday, 24 October 2026 · local time UTC+3
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:47 | sun 18° below horizon |
| Nautical dawn | 06:41 | 12° below |
| Civil dawn | 07:36 | 6° below |
| Sunrise | 08:26 | 115° ESE |
| Golden hour ends | 09:40 | sun 6° up |
| Solar noon | 12:54 | 14.7° high |
| Golden hour starts | 16:09 | sun 6° up |
| Sunset | 17:23 | 244° WSW |
| Civil dusk | 18:13 | 6° below |
| Nautical dusk | 19:07 | 12° below |
| Astronomical dusk | 20:01 | 18° below |
| Day length | 8 h 57 min | |
Sun path diagram for Iisalmi
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 49.9° at solar noon in Iisalmi; on the December solstice only 3.2°. Sunrise swings from 23° NNE in June to 150° SSE in December — a 127° 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 | 09:17 | 12:22 | 15:27 | 6 h 10 min | 6.7° |
| February | 07:44 | 12:25 | 17:06 | 9 h 22 min | 16.0° |
| March | 06:09 | 12:18 | 18:29 | 12 h 20 min | 26.8° |
| April | 05:21 | 13:10 | 21:00 | 15 h 38 min | 38.4° |
| May | 03:45 | 13:08 | 22:32 | 18 h 47 min | 46.7° |
| June | 02:52 | 13:13 | 23:33 | 20 h 41 min | 49.9° |
| July | 03:50 | 13:17 | 22:42 | 18 h 53 min | 46.9° |
| August | 05:23 | 13:14 | 21:03 | 15 h 40 min | 38.5° |
| September | 06:51 | 13:03 | 19:15 | 12 h 25 min | 27.1° |
| October | 08:17 | 12:55 | 17:33 | 9 h 16 min | 15.7° |
| November | 08:52 | 11:56 | 15:00 | 6 h 08 min | 6.6° |
| December | 09:56 | 12:09 | 14:22 | 4 h 26 min | 3.2° |
A year of daylight in Iisalmi
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 Iisalmi
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
46°collects the most energy over a year: 939 kWh per kWp.
82°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° | 709 | 76% | 0.04 | 101.8× |
| 15° | 832 | 89% | 0.06 | 74.2× |
| 30° | 910 | 97% | 0.08 | 58.1× |
| 45° | 939 | 100% | 0.10 | 47.0× |
| 46° year-round best | 939 | 100% | 0.10 | 46.4× |
| 60° | 918 | 98% | 0.11 | 38.5× |
| 64° = latitude | 904 | 96% | 0.11 | 36.5× |
| 70° | 876 | 93% | 0.11 | 33.9× |
| 82° off-grid best | 799 | 85% | 0.12 | 31.4× |
| 90° | 734 | 78% | 0.11 | 30.6× |
A fixed array in Iisalmi produces the most over a year at 46°. The design month for an off-grid system is December: at 82° it makes 0.12 kWh per kWp a day, 17% more than at 46°, and costs 15% of the yearly total. Why steep panels win winter.
Off-grid solar in Iisalmi at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 46° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 46° | Mean temp. |
|---|---|---|---|---|---|
| January snow | 0.17 | 0.62 | 0.56 | 0.46 | -11.4 °C |
| February snow | 0.71 | 1.82 | 1.69 | 1.48 | -10.4 °C |
| March snow | 2.13 | 3.99 | 3.68 | 3.43 | -5.8 °C |
| April | 3.54 | 4.14 | 3.70 | 3.99 | 1.1 °C |
| May | 4.74 | 4.43 | 3.84 | 4.46 | 8.7 °C |
| June | 5.37 | 4.48 | 3.81 | 4.58 | 13.5 °C |
| July | 4.90 | 4.27 | 3.58 | 4.25 | 16.8 °C |
| August | 3.78 | 3.98 | 3.38 | 3.76 | 14.7 °C |
| September | 2.10 | 2.93 | 2.53 | 2.59 | 9.6 °C |
| October | 0.82 | 1.55 | 1.36 | 1.28 | 2.4 °C |
| November snow | 0.21 | 0.60 | 0.52 | 0.45 | -3.3 °C |
| December snow | 0.06 | 0.14 | 0.11 | 0.10 | -8.0 °C |
| Year | 2.39 avg | 2.75 avg | 876 kWh | 939 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 10,400 Wp of panels at 70°, versus 11,930 Wp at 46°. The steep array is 13% smaller for the same winter. Size your own system.
Row spacing in Iisalmi
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 Iisalmi compares in Finland
Against the other 78 places in Finland with climate data, for a fixed array at its best angle.
75thof 79 places in Finland for sunshine: 2.39 peak sun hours a day on flat ground.
−4%solar energy a year compared with the average place in Finland: 939 against 983 kWh per kWp.
+1 h 45 mindaylight on the longest day, compared with Helsinki: 20 h 41 min against 18 h 56 min.
46°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); Iisalmi ranks 75th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 0.11 kWh a day here, against 0.26 kWh on average in Finland. The shortest day lasts 4 h 26 min, −1 h 23 min compared with Helsinki.
Solar forecast for Iisalmi, 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 Iisalmi
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Places near Iisalmi
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A free, live card for Iisalmi: 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.