Campania · Italy · 40.98° N · 14.17° E
Solar position in Trentola-Ducenta
Sun position, daylight and the best solar panel angle for Trentola-Ducenta — computed for 40.98° N, 14.17° E, 42 m above sea level.
The sun right now
Sun in Trentola-Ducenta today
Saturday, 24 October 2026 · local time UTC+2
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:52 | sun 18° below horizon |
| Nautical dawn | 06:24 | 12° below |
| Civil dawn | 06:56 | 6° below |
| Sunrise | 07:24 | 105° ESE |
| Golden hour ends | 08:02 | sun 6° up |
| Solar noon | 12:47 | 37.2° high |
| Golden hour starts | 17:31 | sun 6° up |
| Sunset | 18:09 | 255° WSW |
| Civil dusk | 18:37 | 6° below |
| Nautical dusk | 19:09 | 12° below |
| Astronomical dusk | 19:41 | 18° below |
| Day length | 10 h 45 min | |
Sun path diagram for Trentola-Ducenta
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 72.5° at solar noon in Trentola-Ducenta; on the December solstice only 25.6°. Sunrise swings from 57° ENE in June to 121° ESE in December — a 64° 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 | 07:22 | 12:14 | 17:06 | 9 h 44 min | 29.2° |
| February | 06:49 | 12:17 | 17:44 | 10 h 55 min | 38.6° |
| March | 06:05 | 12:10 | 18:16 | 12 h 11 min | 49.4° |
| April | 06:15 | 13:02 | 19:49 | 13 h 34 min | 61.0° |
| May | 05:40 | 12:59 | 20:19 | 14 h 39 min | 69.3° |
| June | 05:31 | 13:05 | 20:38 | 15 h 07 min | 72.5° |
| July | 05:49 | 13:09 | 20:29 | 14 h 41 min | 69.4° |
| August | 06:18 | 13:06 | 19:53 | 13 h 34 min | 61.1° |
| September | 06:49 | 12:56 | 19:02 | 12 h 13 min | 49.6° |
| October | 07:21 | 12:47 | 18:14 | 10 h 53 min | 38.3° |
| November | 06:57 | 11:48 | 16:40 | 9 h 43 min | 29.1° |
| December | 07:24 | 12:01 | 16:38 | 9 h 14 min | 25.6° |
A year of daylight in Trentola-Ducenta
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 Trentola-Ducenta
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
33°collects the most energy over a year: 1509 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° | 1301 | 86% | 1.29 | 4.6× |
| 15° | 1447 | 96% | 1.86 | 3.2× |
| 30° | 1507 | 100% | 2.32 | 2.4× |
| 33° year-round best | 1509 | 100% | 2.39 | 2.3× |
| 41° = latitude | 1496 | 99% | 2.56 | 2.0× |
| 45° | 1480 | 98% | 2.63 | 1.9× |
| 60° | 1367 | 91% | 2.77 | 1.6× |
| 65° off-grid best | 1312 | 87% | 2.78 | 1.5× |
| 70° | 1249 | 83% | 2.77 | 1.4× |
| 90° | 929 | 62% | 2.53 | 1.7× |
A fixed array in Trentola-Ducenta produces the most over a year at 33°. The design month for an off-grid system is December: at 65° it makes 2.78 kWh per kWp a day, 16% more than at 33°, and costs 13% of the yearly total. Why steep panels win winter.
Off-grid solar in Trentola-Ducenta at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 33° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 33° | Mean temp. |
|---|---|---|---|---|---|
| January | 1.84 | 3.29 | 2.88 | 2.57 | 8.3 °C |
| February | 2.66 | 3.75 | 3.28 | 3.22 | 8.4 °C |
| March | 3.87 | 4.21 | 3.66 | 4.05 | 10.5 °C |
| April | 5.19 | 4.28 | 3.67 | 4.71 | 13.4 °C |
| May | 6.34 | 4.13 | 3.47 | 5.14 | 17.3 °C |
| June | 7.23 | 4.05 | 3.34 | 5.43 | 21.9 °C |
| July | 7.37 | 4.27 | 3.49 | 5.56 | 25.0 °C |
| August | 6.47 | 4.76 | 3.89 | 5.39 | 25.2 °C |
| September | 4.74 | 4.72 | 3.93 | 4.59 | 21.2 °C |
| October | 3.33 | 4.42 | 3.74 | 3.79 | 17.5 °C |
| November | 2.08 | 3.44 | 2.96 | 2.71 | 13.4 °C |
| December | 1.64 | 3.18 | 2.77 | 2.39 | 9.6 °C |
| Year | 4.41 avg | 4.04 avg | 1249 kWh | 1509 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 430 Wp of panels at 70°, versus 490 Wp at 33°. The steep array is 14% smaller for the same winter. Size your own system.
Row spacing in Trentola-Ducenta
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.
5.2 mrow pitch at 70°
4.3 mrow pitch at 33°
How Trentola-Ducenta compares in Italy
Against the other 596 places in Italy with climate data, for a fixed array at its best angle.
203rdof 597 places in Italy for sunshine, shared: 4.41 peak sun hours a day on flat ground.
+4%solar energy a year compared with the average place in Italy: 1,509 against 1,452 kWh per kWp.
−6 mindaylight on the longest day, compared with Rome: 15 h 07 min against 15 h 14 min.
33°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); Trentola-Ducenta ranks joint 203rd. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 2.77 kWh a day here, against 2.63 kWh on average in Italy. The shortest day lasts 9 h 14 min, +6 min compared with Rome.
Solar forecast for Trentola-Ducenta, 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 Trentola-Ducenta: 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.