Trentino-Alto Adige · Italy · 46.49° N · 11.34° E
Solar position in Bolzano
Sun position, daylight and the best solar panel angle for Bolzano — computed for 46.49° N, 11.34° E, 262 m above sea level.
The sun right now
Sun in Bolzano today
Saturday, 24 October 2026 · local time UTC+2
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 06:03 | sun 18° below horizon |
| Nautical dawn | 06:38 | 12° below |
| Civil dawn | 07:13 | 6° below |
| Sunrise | 07:44 | 106° ESE |
| Golden hour ends | 08:26 | sun 6° up |
| Solar noon | 12:58 | 31.7° high |
| Golden hour starts | 17:30 | sun 6° up |
| Sunset | 18:12 | 253° WSW |
| Civil dusk | 18:43 | 6° below |
| Nautical dusk | 19:18 | 12° below |
| Astronomical dusk | 19:53 | 18° below |
| Day length | 10 h 28 min | |
Sun path diagram for Bolzano
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 67.0° at solar noon in Bolzano; on the December solstice only 20.1°. Sunrise swings from 54° NE in June to 124° SE in December — a 71° 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 | 07:49 | 12:26 | 17:02 | 9 h 12 min | 23.7° |
| February | 07:08 | 12:28 | 17:48 | 10 h 40 min | 33.1° |
| March | 06:16 | 12:22 | 18:28 | 12 h 12 min | 43.9° |
| April | 06:17 | 13:13 | 20:10 | 13 h 53 min | 55.5° |
| May | 05:34 | 13:11 | 20:48 | 15 h 14 min | 63.8° |
| June | 05:21 | 13:16 | 21:11 | 15 h 49 min | 67.0° |
| July | 05:42 | 13:21 | 20:58 | 15 h 16 min | 63.9° |
| August | 06:20 | 13:17 | 20:14 | 13 h 54 min | 55.5° |
| September | 07:00 | 13:07 | 19:14 | 12 h 15 min | 44.1° |
| October | 07:40 | 12:58 | 18:17 | 10 h 37 min | 32.7° |
| November | 07:24 | 12:00 | 16:35 | 9 h 11 min | 23.6° |
| December | 07:55 | 12:12 | 16:29 | 8 h 35 min | 20.1° |
A year of daylight in Bolzano
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 Bolzano
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: 1375 kWh per kWp.
65°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° | 1089 | 79% | 1.01 | 4.7× |
| 15° | 1254 | 91% | 1.64 | 3.0× |
| 30° | 1351 | 98% | 2.19 | 2.2× |
| 42° year-round best | 1375 | 100% | 2.54 | 1.8× |
| 45° | 1373 | 100% | 2.61 | 1.7× |
| 46° = latitude | 1372 | 100% | 2.64 | 1.7× |
| 60° | 1320 | 96% | 2.88 | 1.6× |
| 65° off-grid best | 1286 | 94% | 2.93 | 1.6× |
| 70° | 1244 | 91% | 2.96 | 1.5× |
| 90° | 1010 | 73% | 2.90 | 1.8× |
A fixed array in Bolzano produces the most over a year at 42°. The design month for an off-grid system is December: at 65° it makes 2.93 kWh per kWp a day, 15% more than at 42°, and costs 6% of the yearly total. Why steep panels win winter.
Off-grid solar in Bolzano 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 | 1.58 | 3.70 | 3.42 | 2.98 | -6.1 °C |
| February snow | 2.49 | 4.37 | 4.02 | 3.75 | -5.2 °C |
| March snow | 3.69 | 4.70 | 4.26 | 4.43 | -0.9 °C |
| April | 4.39 | 3.93 | 3.48 | 4.19 | 4.1 °C |
| May | 4.95 | 3.62 | 3.13 | 4.11 | 8.5 °C |
| June | 5.66 | 3.75 | 3.20 | 4.39 | 12.9 °C |
| July | 5.74 | 3.93 | 3.33 | 4.52 | 14.7 °C |
| August | 4.95 | 4.05 | 3.45 | 4.32 | 14.3 °C |
| September | 3.85 | 4.12 | 3.58 | 4.02 | 10.0 °C |
| October | 2.62 | 3.77 | 3.33 | 3.38 | 5.7 °C |
| November | 1.58 | 3.08 | 2.78 | 2.58 | 0.5 °C |
| December snow | 1.27 | 3.22 | 2.96 | 2.54 | -4.6 °C |
| Year | 3.57 avg | 3.85 avg | 1244 kWh | 1375 kWh |
Sizing example. To run a 1 kWh-per-day load through November on LiFePO4 batteries (charge controller, battery and inverter losses included) you need about 420 Wp of panels at 70°, versus 460 Wp at 42°. The steep array is 9% smaller for the same winter. Size your own system.
Row spacing in Bolzano
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.
6.9 mrow pitch at 70°
5.9 mrow pitch at 42°
How Bolzano compares in Italy
Against the other 596 places in Italy with climate data, for a fixed array at its best angle.
595thof 597 places in Italy for sunshine: 3.57 peak sun hours a day on flat ground.
−5%solar energy a year compared with the average place in Italy: 1,375 against 1,452 kWh per kWp.
+36 mindaylight on the longest day, compared with Rome: 15 h 49 min against 15 h 14 min.
42°best year-round tilt here; across Italy it runs from 30° in Palermo to 42° in Bolzano.
Of the 597 places in Italy, Pozzallo and one other place get the most sun (4.91 peak sun hours a day) and Bressanone the least (3.51); Bolzano ranks 595th. In its darkest month, November, 1 kWp of off-grid panels at 70° makes 2.78 kWh a day here, against 2.63 kWh on average in Italy. The shortest day lasts 8 h 35 min, −33 min compared with Rome.
Solar forecast for Bolzano, 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 Bolzano
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Places near Bolzano
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A free, live card for Bolzano: 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.