Lisbon · Portugal · 38.71° N · 9.24° W
Solar position in Linda-a-Velha
Sun position, daylight and the best solar panel angle for Linda-a-Velha — computed for 38.71° N, 9.24° W, 90 m above sea level.
The sun right now
Sun in Linda-a-Velha today
Saturday, 24 October 2026 · local time UTC+1
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 06:26 | sun 18° below horizon |
| Nautical dawn | 06:57 | 12° below |
| Civil dawn | 07:28 | 6° below |
| Sunrise | 07:55 | 104° ESE |
| Golden hour ends | 08:32 | sun 6° up |
| Solar noon | 13:20 | 39.4° high |
| Golden hour starts | 18:09 | sun 6° up |
| Sunset | 18:46 | 255° WSW |
| Civil dusk | 19:13 | 6° below |
| Nautical dusk | 19:44 | 12° below |
| Astronomical dusk | 20:15 | 18° below |
| Day length | 10 h 51 min | |
Sun path diagram for Linda-a-Velha
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 74.7° at solar noon in Linda-a-Velha; on the December solstice only 27.9°. Sunrise swings from 59° ENE in June to 120° ESE in December — a 61° 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 | 07:50 | 12:48 | 17:46 | 9 h 55 min | 31.5° |
| February | 07:20 | 12:50 | 18:21 | 11 h 01 min | 40.9° |
| March | 06:39 | 12:44 | 18:49 | 12 h 11 min | 51.7° |
| April | 06:52 | 13:35 | 20:19 | 13 h 27 min | 63.3° |
| May | 06:20 | 13:33 | 20:47 | 14 h 27 min | 71.5° |
| June | 06:12 | 13:38 | 21:05 | 14 h 53 min | 74.7° |
| July | 06:29 | 13:43 | 20:57 | 14 h 28 min | 71.7° |
| August | 06:56 | 13:40 | 20:23 | 13 h 27 min | 63.3° |
| September | 07:23 | 13:29 | 19:35 | 12 h 12 min | 51.9° |
| October | 07:52 | 13:21 | 18:50 | 10 h 58 min | 40.5° |
| November | 07:25 | 12:22 | 17:19 | 9 h 54 min | 31.3° |
| December | 07:51 | 12:35 | 17:18 | 9 h 27 min | 27.9° |
A year of daylight in Linda-a-Velha
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 Linda-a-Velha
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
32°collects the most energy over a year: 1632 kWh per kWp.
63°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° | 1416 | 87% | 1.60 | 3.7× |
| 15° | 1571 | 96% | 2.26 | 2.6× |
| 30° | 1631 | 100% | 2.79 | 2.0× |
| 32° year-round best | 1632 | 100% | 2.84 | 2.0× |
| 39° = latitude | 1622 | 99% | 3.02 | 1.8× |
| 45° | 1596 | 98% | 3.13 | 1.7× |
| 60° | 1469 | 90% | 3.28 | 1.4× |
| 63° off-grid best | 1433 | 88% | 3.28 | 1.4× |
| 70° | 1337 | 82% | 3.26 | 1.3× |
| 90° | 985 | 60% | 2.96 | 1.9× |
A fixed array in Linda-a-Velha produces the most over a year at 32°. The design month for an off-grid system is December: at 63° it makes 3.28 kWh per kWp a day, 15% more than at 32°, and costs 12% of the yearly total. Why steep panels win winter.
Off-grid solar in Linda-a-Velha at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 32° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 32° | Mean temp. |
|---|---|---|---|---|---|
| January | 2.24 | 3.88 | 3.34 | 3.00 | 12.6 °C |
| February | 3.24 | 4.51 | 3.88 | 3.83 | 12.5 °C |
| March | 4.41 | 4.69 | 4.03 | 4.52 | 13.6 °C |
| April | 5.73 | 4.55 | 3.88 | 5.13 | 14.9 °C |
| May | 6.83 | 4.19 | 3.53 | 5.47 | 16.8 °C |
| June | 7.25 | 3.87 | 3.23 | 5.46 | 19.2 °C |
| July | 7.34 | 4.06 | 3.37 | 5.58 | 20.4 °C |
| August | 6.68 | 4.68 | 3.89 | 5.57 | 21.1 °C |
| September | 5.25 | 5.06 | 4.23 | 5.03 | 20.4 °C |
| October | 3.64 | 4.60 | 3.87 | 4.00 | 18.6 °C |
| November | 2.50 | 4.07 | 3.47 | 3.19 | 15.4 °C |
| December | 2.04 | 3.79 | 3.26 | 2.84 | 13.3 °C |
| Year | 4.77 avg | 4.33 avg | 1337 kWh | 1632 kWh |
Sizing example. To run a 1 kWh-per-day load through June on LiFePO4 batteries (charge controller, battery and inverter losses included) you need about 370 Wp of panels at 70°, versus 420 Wp at 32°. The steep array is 12% smaller for the same winter. Size your own system.
Row spacing in Linda-a-Velha
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.
4.8 mrow pitch at 70°
4.0 mrow pitch at 32°
How Linda-a-Velha compares in Portugal
Against the other 173 places in Portugal with climate data, for a fixed array at its best angle.
40thof 174 places in Portugal for sunshine, shared: 4.77 peak sun hours a day on flat ground.
+2%solar energy a year compared with the average place in Portugal: 1,632 against 1,604 kWh per kWp.
±0 mindaylight on the longest day, compared with Lisbon: 14 h 53 min against 14 h 53 min.
32°best year-round tilt here; across Portugal it runs from 26° in Funchal to 34° in Porto.
Of the 174 places in Portugal, Faro and one other place get the most sun (5.10 peak sun hours a day) and Monção the least (4.21); Linda-a-Velha ranks joint 40th. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 3.23 kWh a day here, against 3.10 kWh on average in Portugal. The shortest day lasts 9 h 27 min, ±0 min compared with Lisbon.
Solar forecast for Linda-a-Velha, 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 Linda-a-Velha: 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.