Kalmar · Sweden · 57.26° N · 16.45° E
Solar position in Oskarshamn
Sun position, daylight and the best solar panel angle for Oskarshamn — computed for 57.26° N, 16.45° E, 22 m above sea level.
The sun right now
Sun in Oskarshamn today
Sunday, 25 October 2026 · local time UTC+2
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:40 | sun 18° below horizon |
| Nautical dawn | 05:24 | 12° below |
| Civil dawn | 06:09 | 6° below |
| Sunrise | 06:49 | 111° ESE |
| Golden hour ends | 07:46 | sun 6° up |
| Solar noon | 11:37 | 20.6° high |
| Golden hour starts | 15:28 | sun 6° up |
| Sunset | 16:25 | 248° WSW |
| Civil dusk | 17:06 | 6° below |
| Nautical dusk | 17:50 | 12° below |
| Astronomical dusk | 18:35 | 18° below |
| Day length | 9 h 36 min | |
Sun path diagram for Oskarshamn
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 56.2° at solar noon in Oskarshamn; on the December solstice only 9.4°. Sunrise swings from 41° NE in June to 135° SE in December — a 95° 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 | 08:14 | 12:05 | 15:57 | 7 h 42 min | 13.0° |
| February | 07:08 | 12:08 | 17:07 | 9 h 59 min | 22.3° |
| March | 05:53 | 12:01 | 18:10 | 12 h 16 min | 33.1° |
| April | 05:30 | 12:53 | 20:17 | 14 h 47 min | 44.7° |
| May | 04:23 | 12:50 | 21:19 | 16 h 56 min | 53.0° |
| June | 03:57 | 12:56 | 21:54 | 17 h 58 min | 56.2° |
| July | 04:30 | 13:00 | 21:29 | 16 h 59 min | 53.2° |
| August | 05:32 | 12:57 | 20:20 | 14 h 48 min | 44.8° |
| September | 06:36 | 12:46 | 18:56 | 12 h 20 min | 33.4° |
| October | 07:40 | 12:38 | 17:35 | 9 h 55 min | 22.0° |
| November | 07:49 | 11:39 | 15:30 | 7 h 41 min | 12.8° |
| December | 08:32 | 11:52 | 15:11 | 6 h 39 min | 9.4° |
A year of daylight in Oskarshamn
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 Oskarshamn
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: 1114 kWh per kWp.
77°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° | 873 | 78% | 0.18 | 28.1× |
| 15° | 1012 | 91% | 0.33 | 16.3× |
| 30° | 1094 | 98% | 0.46 | 11.6× |
| 42° year-round best | 1114 | 100% | 0.54 | 9.4× |
| 45° | 1113 | 100% | 0.56 | 9.0× |
| 57° = latitude | 1083 | 97% | 0.62 | 7.6× |
| 60° | 1069 | 96% | 0.63 | 7.3× |
| 70° | 1006 | 90% | 0.65 | 6.4× |
| 77° off-grid best | 947 | 85% | 0.66 | 6.0× |
| 90° | 809 | 73% | 0.64 | 5.2× |
A fixed array in Oskarshamn produces the most over a year at 42°. The design month for an off-grid system is December: at 77° it makes 0.66 kWh per kWp a day, 21% more than at 42°, and costs 15% of the yearly total. Why steep panels win winter.
Off-grid solar in Oskarshamn at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 42° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 42° | Mean temp. |
|---|---|---|---|---|---|
| January snow | 0.39 | 1.05 | 0.92 | 0.77 | -0.3 °C |
| February snow | 0.99 | 2.01 | 1.79 | 1.61 | -0.4 °C |
| March | 2.44 | 3.70 | 3.31 | 3.29 | 1.4 °C |
| April | 4.27 | 4.74 | 4.19 | 4.65 | 5.4 °C |
| May | 5.59 | 4.83 | 4.17 | 5.11 | 10.2 °C |
| June | 6.15 | 4.71 | 4.00 | 5.13 | 14.8 °C |
| July | 5.58 | 4.50 | 3.77 | 4.74 | 17.7 °C |
| August | 4.49 | 4.39 | 3.69 | 4.29 | 17.4 °C |
| September | 3.00 | 3.95 | 3.38 | 3.51 | 13.6 °C |
| October | 1.38 | 2.41 | 2.09 | 1.98 | 8.6 °C |
| November | 0.51 | 1.22 | 1.06 | 0.92 | 4.6 °C |
| December | 0.26 | 0.76 | 0.65 | 0.54 | 1.4 °C |
| Year | 2.93 avg | 3.19 avg | 1006 kWh | 1114 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 1,800 Wp of panels at 70°, versus 2,170 Wp at 42°. The steep array is 17% smaller for the same winter. Size your own system.
Row spacing in Oskarshamn
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.
18.2 mrow pitch at 70°
13.9 mrow pitch at 42°
How Oskarshamn compares in Sweden
Against the other 98 places in Sweden with climate data, for a fixed array at its best angle.
4thof 99 places in Sweden for sunshine: 2.93 peak sun hours a day on flat ground.
+5%solar energy a year compared with the average place in Sweden: 1,114 against 1,059 kWh per kWp.
−39 mindaylight on the longest day, compared with Stockholm: 17 h 58 min against 18 h 37 min.
42°best year-round tilt here; across Sweden it runs from 41° in Malmö to 50° in Kiruna.
Of the 99 places in Sweden, Kalmar gets the most sun (2.96 peak sun hours a day) and Kiruna the least (2.22); Oskarshamn ranks 4th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 0.65 kWh a day here, against 0.59 kWh on average in Sweden. The shortest day lasts 6 h 39 min, +34 min compared with Stockholm.
Solar forecast for Oskarshamn, 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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A free, live card for Oskarshamn: 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.