Stockholm · Sweden · 59.76° N · 18.70° E
Solar position in Norrtälje
Sun position, daylight and the best solar panel angle for Norrtälje — computed for 59.76° N, 18.70° E, 13 m above sea level.
The sun right now
Sun in Norrtälje today
Sunday, 25 October 2026 · local time UTC+2
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:28 | sun 18° below horizon |
| Nautical dawn | 05:16 | 12° below |
| Civil dawn | 06:05 | 6° below |
| Sunrise | 06:48 | 113° ESE |
| Golden hour ends | 07:51 | sun 6° up |
| Solar noon | 11:28 | 18.1° high |
| Golden hour starts | 15:06 | sun 6° up |
| Sunset | 16:09 | 247° WSW |
| Civil dusk | 16:52 | 6° below |
| Nautical dusk | 17:40 | 12° below |
| Astronomical dusk | 18:28 | 18° below |
| Day length | 9 h 21 min | |
Sun path diagram for Norrtälje
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 53.7° at solar noon in Norrtälje; on the December solstice only 6.9°. Sunrise swings from 35° NE in June to 140° SE in December — a 104° 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 | 08:20 | 11:56 | 15:32 | 7 h 12 min | 10.5° |
| February | 07:06 | 11:59 | 16:52 | 9 h 46 min | 19.8° |
| March | 05:44 | 11:52 | 18:01 | 12 h 18 min | 30.6° |
| April | 05:12 | 12:44 | 20:17 | 15 h 05 min | 42.2° |
| May | 03:56 | 12:41 | 21:28 | 17 h 32 min | 50.5° |
| June | 03:23 | 12:46 | 22:10 | 18 h 47 min | 53.7° |
| July | 04:02 | 12:51 | 21:38 | 17 h 36 min | 50.7° |
| August | 05:14 | 12:48 | 20:20 | 15 h 06 min | 42.3° |
| September | 06:26 | 12:37 | 18:48 | 12 h 21 min | 30.9° |
| October | 07:38 | 12:29 | 17:20 | 9 h 42 min | 19.5° |
| November | 07:55 | 11:30 | 15:05 | 7 h 09 min | 10.4° |
| December | 08:44 | 11:43 | 14:41 | 5 h 57 min | 6.9° |
A year of daylight in Norrtälje
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 Norrtälje
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
43°collects the most energy over a year: 1076 kWh per kWp.
80°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° | 829 | 77% | 0.11 | 44.9× |
| 15° | 968 | 90% | 0.20 | 26.1× |
| 30° | 1051 | 98% | 0.29 | 18.5× |
| 43° year-round best | 1076 | 100% | 0.35 | 14.7× |
| 45° | 1075 | 100% | 0.36 | 14.2× |
| 60° = latitude | 1039 | 97% | 0.40 | 11.5× |
| 70° | 982 | 91% | 0.42 | 10.1× |
| 80° off-grid best | 901 | 84% | 0.43 | 8.8× |
| 90° | 800 | 74% | 0.42 | 7.9× |
A fixed array in Norrtälje produces the most over a year at 43°. The design month for an off-grid system is December: at 80° it makes 0.43 kWh per kWp a day, 23% more than at 43°, and costs 16% of the yearly total. Why steep panels win winter.
Off-grid solar in Norrtälje at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 43° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 43° | Mean temp. |
|---|---|---|---|---|---|
| January snow | 0.27 | 0.75 | 0.66 | 0.55 | -1.6 °C |
| February snow | 0.84 | 1.80 | 1.62 | 1.44 | -1.8 °C |
| March snow | 2.23 | 3.73 | 3.36 | 3.22 | 0.3 °C |
| April | 4.02 | 4.66 | 4.13 | 4.51 | 4.3 °C |
| May | 5.45 | 4.89 | 4.24 | 5.09 | 9.1 °C |
| June | 6.04 | 4.80 | 4.09 | 5.13 | 13.9 °C |
| July | 5.63 | 4.70 | 3.94 | 4.85 | 17.7 °C |
| August | 4.39 | 4.48 | 3.77 | 4.30 | 17.3 °C |
| September | 2.71 | 3.72 | 3.18 | 3.27 | 13.1 °C |
| October | 1.19 | 2.24 | 1.94 | 1.82 | 7.6 °C |
| November | 0.39 | 1.01 | 0.88 | 0.75 | 3.6 °C |
| December snow | 0.17 | 0.49 | 0.42 | 0.35 | 0.4 °C |
| Year | 2.79 avg | 3.11 avg | 982 kWh | 1076 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 2,800 Wp of panels at 70°, versus 3,390 Wp at 43°. The steep array is 17% smaller for the same winter. Size your own system.
Row spacing in Norrtälje
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.
30.2 mrow pitch at 70°
22.9 mrow pitch at 43°
How Norrtälje compares in Sweden
Against the other 98 places in Sweden with climate data, for a fixed array at its best angle.
23rdof 99 places in Sweden for sunshine, shared: 2.79 peak sun hours a day on flat ground.
+2%solar energy a year compared with the average place in Sweden: 1,076 against 1,059 kWh per kWp.
+9 mindaylight on the longest day, compared with Stockholm: 18 h 47 min against 18 h 37 min.
43°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); Norrtälje ranks joint 23rd. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 0.42 kWh a day here, against 0.59 kWh on average in Sweden. The shortest day lasts 5 h 57 min, −8 min compared with Stockholm.
Solar forecast for Norrtälje, 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 Norrtälje
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Places near Norrtälje
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A free, live card for Norrtälje: 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.