Calabarzon · Philippines · 13.93° N · 121.62° E
Solar position in Lucena
Sun position, daylight and the best solar panel angle for Lucena — computed for 13.93° N, 121.62° E, 9 m above sea level.
The sun right now
Sun in Lucena today
Sunday, 25 October 2026 · local time UTC+8
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:34 | sun 18° below horizon |
| Nautical dawn | 04:59 | 12° below |
| Civil dawn | 05:24 | 6° below |
| Sunrise | 05:46 | 102° ESE |
| Golden hour ends | 06:15 | sun 6° up |
| Solar noon | 11:37 | 64.0° high |
| Golden hour starts | 16:59 | sun 6° up |
| Sunset | 17:28 | 258° WSW |
| Civil dusk | 17:50 | 6° below |
| Nautical dusk | 18:15 | 12° below |
| Astronomical dusk | 18:40 | 18° below |
| Day length | 11 h 43 min | |
Sun path diagram for Lucena
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 80.5° at solar noon in Lucena; on the December solstice only 52.6°. Sunrise swings from 66° ENE in June to 114° ESE in December — a 48° 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 | 06:21 | 12:04 | 17:47 | 11 h 26 min | 56.2° |
| February | 06:14 | 12:07 | 18:00 | 11 h 46 min | 65.5° |
| March | 05:57 | 12:00 | 18:04 | 12 h 07 min | 76.3° |
| April | 05:36 | 11:52 | 18:07 | 12 h 31 min | 87.9° |
| May | 05:25 | 11:50 | 18:14 | 12 h 49 min | 83.8° |
| June | 05:26 | 11:55 | 18:23 | 12 h 57 min | 80.5° |
| July | 05:34 | 11:59 | 18:24 | 12 h 50 min | 83.5° |
| August | 05:41 | 11:56 | 18:12 | 12 h 31 min | 88.2° |
| September | 05:42 | 11:46 | 17:50 | 12 h 08 min | 76.8° |
| October | 05:45 | 11:38 | 17:30 | 11 h 45 min | 65.4° |
| November | 05:56 | 11:39 | 17:22 | 11 h 26 min | 56.2° |
| December | 06:12 | 11:51 | 17:30 | 11 h 18 min | 52.6° |
A year of daylight in Lucena
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 Lucena
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
12°collects the most energy over a year: 1420 kWh per kWp.
26°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° | 1396 | 98% | 2.77 | 1.8× |
| 12° year-round best | 1420 | 100% | 3.09 | 1.6× |
| 14° = latitude | 1419 | 100% | 3.13 | 1.6× |
| 15° | 1418 | 100% | 3.15 | 1.5× |
| 26° off-grid best | 1384 | 97% | 3.31 | 1.4× |
| 30° | 1362 | 96% | 3.35 | 1.4× |
| 45° | 1232 | 87% | 3.36 | 1.6× |
| 60° | 1038 | 73% | 3.18 | 1.9× |
| 70° | 883 | 62% | 2.96 | 2.4× |
| 90° | 595 | 42% | 2.31 | 2.5× |
A fixed array in Lucena produces the most over a year at 12°. The design month for an off-grid system is December: at 26° it makes 3.31 kWh per kWp a day, 7% more than at 12°, and costs 3% of the yearly total. Why steep panels win winter.
Off-grid solar in Lucena at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 12° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 12° | Mean temp. |
|---|---|---|---|---|---|
| January | 3.92 | 3.90 | 3.20 | 3.43 | 25.1 °C |
| February | 4.76 | 4.06 | 3.32 | 4.07 | 25.3 °C |
| March | 5.54 | 3.68 | 2.99 | 4.55 | 26.4 °C |
| April | 6.28 | 2.82 | 2.26 | 4.89 | 28.0 °C |
| May | 5.84 | 2.01 | 1.58 | 4.39 | 28.8 °C |
| June | 5.36 | 1.79 | 1.40 | 3.99 | 28.3 °C |
| July | 4.88 | 1.86 | 1.46 | 3.68 | 27.7 °C |
| August | 4.73 | 2.22 | 1.77 | 3.65 | 27.5 °C |
| September | 4.83 | 2.89 | 2.33 | 3.85 | 27.5 °C |
| October | 4.42 | 3.38 | 2.74 | 3.66 | 27.2 °C |
| November | 4.05 | 3.83 | 3.12 | 3.49 | 26.8 °C |
| December | 3.53 | 3.63 | 2.96 | 3.09 | 25.9 °C |
| Year | 4.84 avg | 3.00 avg | 883 kWh | 1420 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 840 Wp of panels at 70°, versus 380 Wp at 12°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Lucena
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.
2.3 mrow pitch at 70°
2.3 mrow pitch at 12°
How Lucena compares in the Philippines
Against the other 519 places in the Philippines with climate data, for a fixed array at its best angle.
447thof 520 places in the Philippines for sunshine, shared: 4.84 peak sun hours a day on flat ground.
−3%solar energy a year compared with the average place in the Philippines: 1,420 against 1,467 kWh per kWp.
−3 mindaylight on the longest day, compared with Quezon City: 12 h 57 min against 13 h 00 min.
12°best year-round tilt here; across the Philippines it runs from 4° in Bongao to 18° in Vigan.
Of the 520 places in the Philippines, Jolo gets the most sun (5.36 peak sun hours a day) and Pangil the least (4.68); Lucena ranks joint 447th. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 1.40 kWh a day here, against 1.34 kWh on average in the Philippines. The shortest day lasts 11 h 18 min, +3 min compared with Quezon City.
Solar forecast for Lucena, 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 Lucena
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Places near Lucena
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A free, live card for Lucena: 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.