Uusimaa · Finland · 60.63° N · 25.32° E
Solar position in Mäntsälä
Sun position, daylight and the best solar panel angle for Mäntsälä — computed for 60.63° N, 25.32° E, 59 m above sea level.
The sun right now
Sun in Mäntsälä today
Sunday, 25 October 2026 · local time UTC+3
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:01 | sun 18° below horizon |
| Nautical dawn | 05:50 | 12° below |
| Civil dawn | 06:40 | 6° below |
| Sunrise | 07:25 | 114° ESE |
| Golden hour ends | 08:30 | sun 6° up |
| Solar noon | 12:02 | 17.2° high |
| Golden hour starts | 15:34 | sun 6° up |
| Sunset | 16:39 | 246° WSW |
| Civil dusk | 17:24 | 6° below |
| Nautical dusk | 18:13 | 12° below |
| Astronomical dusk | 19:02 | 18° below |
| Day length | 9 h 15 min | |
Sun path diagram for Mäntsälä
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 52.8° at solar noon in Mäntsälä; on the December solstice only 6.1°. Sunrise swings from 33° NNE in June to 142° SE in December — a 109° 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 | 09:00 | 12:30 | 15:59 | 6 h 59 min | 9.6° |
| February | 07:42 | 12:32 | 17:23 | 9 h 41 min | 18.9° |
| March | 06:17 | 12:26 | 18:35 | 12 h 18 min | 29.7° |
| April | 05:42 | 13:17 | 20:54 | 15 h 11 min | 41.3° |
| May | 04:22 | 13:15 | 22:09 | 17 h 47 min | 49.6° |
| June | 03:46 | 13:20 | 22:54 | 19 h 07 min | 52.8° |
| July | 04:28 | 13:25 | 22:19 | 17 h 51 min | 49.8° |
| August | 05:44 | 13:21 | 20:57 | 15 h 13 min | 41.4° |
| September | 07:00 | 13:11 | 19:22 | 12 h 22 min | 30.0° |
| October | 08:14 | 13:02 | 17:51 | 9 h 36 min | 18.6° |
| November | 08:35 | 12:04 | 15:32 | 6 h 57 min | 9.5° |
| December | 09:26 | 12:16 | 15:06 | 5 h 40 min | 6.1° |
A year of daylight in Mäntsälä
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 Mäntsälä
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
44°collects the most energy over a year: 986 kWh per kWp.
83°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° | 761 | 77% | 0.09 | 46.7× |
| 15° | 885 | 90% | 0.17 | 27.4× |
| 30° | 962 | 98% | 0.24 | 20.0× |
| 44° year-round best | 986 | 100% | 0.30 | 15.9× |
| 45° | 986 | 100% | 0.30 | 15.7× |
| 60° | 957 | 97% | 0.35 | 12.7× |
| 61° = latitude | 953 | 97% | 0.35 | 12.5× |
| 70° | 909 | 92% | 0.36 | 11.0× |
| 83° off-grid best | 815 | 83% | 0.37 | 9.2× |
| 90° | 752 | 76% | 0.37 | 9.0× |
A fixed array in Mäntsälä produces the most over a year at 44°. The design month for an off-grid system is December: at 83° it makes 0.37 kWh per kWp a day, 24% more than at 44°, and costs 17% of the yearly total. Why steep panels win winter.
Off-grid solar in Mäntsälä at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 44° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 44° | Mean temp. |
|---|---|---|---|---|---|
| January snow | 0.25 | 0.78 | 0.69 | 0.57 | -5.6 °C |
| February snow | 0.82 | 1.85 | 1.68 | 1.48 | -6.0 °C |
| March snow | 2.21 | 3.86 | 3.51 | 3.29 | -2.6 °C |
| April | 3.74 | 4.25 | 3.77 | 4.12 | 3.3 °C |
| May | 5.13 | 4.63 | 4.01 | 4.77 | 9.5 °C |
| June | 5.36 | 4.32 | 3.67 | 4.53 | 14.0 °C |
| July | 5.16 | 4.35 | 3.64 | 4.43 | 17.7 °C |
| August | 4.00 | 4.06 | 3.41 | 3.88 | 16.7 °C |
| September | 2.39 | 3.17 | 2.72 | 2.81 | 12.2 °C |
| October | 1.07 | 1.93 | 1.68 | 1.59 | 5.8 °C |
| November | 0.33 | 0.80 | 0.69 | 0.60 | 1.3 °C |
| December snow | 0.14 | 0.42 | 0.36 | 0.30 | -2.6 °C |
| Year | 2.56 avg | 2.87 avg | 909 kWh | 986 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 3,250 Wp of panels at 70°, versus 3,940 Wp at 44°. The steep array is 18% smaller for the same winter. Size your own system.
Row spacing in Mäntsälä
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 Mäntsälä compares in Finland
Against the other 78 places in Finland with climate data, for a fixed array at its best angle.
33rdof 79 places in Finland for sunshine, shared: 2.56 peak sun hours a day on flat ground.
±0%solar energy a year compared with the average place in Finland: 986 against 983 kWh per kWp.
+11 mindaylight on the longest day, compared with Helsinki: 19 h 07 min against 18 h 56 min.
44°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); Mäntsälä ranks joint 33rd. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 0.36 kWh a day here, against 0.26 kWh on average in Finland. The shortest day lasts 5 h 40 min, −9 min compared with Helsinki.
Solar forecast for Mäntsälä, 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 Mäntsälä
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Places near Mäntsälä
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A free, live card for Mäntsälä: 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.