Central Luzon · Philippines · 14.95° N · 120.09° E
Solar position in San Antonio
Sun position, daylight and the best solar panel angle for San Antonio — computed for 14.95° N, 120.09° E, 16 m above sea level.
The sun right now
Sun in San Antonio today
Sunday, 25 October 2026 · local time UTC+8
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:41 | sun 18° below horizon |
| Nautical dawn | 05:06 | 12° below |
| Civil dawn | 05:31 | 6° below |
| Sunrise | 05:53 | 102° ESE |
| Golden hour ends | 06:22 | sun 6° up |
| Solar noon | 11:43 | 63.0° high |
| Golden hour starts | 17:05 | sun 6° up |
| Sunset | 17:34 | 258° WSW |
| Civil dusk | 17:55 | 6° below |
| Nautical dusk | 18:21 | 12° below |
| Astronomical dusk | 18:46 | 18° below |
| Day length | 11 h 41 min | |
Sun path diagram for San Antonio
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 81.5° at solar noon in San Antonio; on the December solstice only 51.6°. Sunrise swings from 65° ENE in June to 114° ESE in December — a 49° 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 | 06:29 | 12:10 | 17:52 | 11 h 23 min | 55.2° |
| February | 06:21 | 12:13 | 18:05 | 11 h 44 min | 64.5° |
| March | 06:03 | 12:06 | 18:10 | 12 h 07 min | 75.3° |
| April | 05:42 | 11:58 | 18:14 | 12 h 33 min | 86.9° |
| May | 05:30 | 11:56 | 18:22 | 12 h 52 min | 84.8° |
| June | 05:30 | 12:01 | 18:31 | 13 h 01 min | 81.5° |
| July | 05:39 | 12:06 | 18:32 | 12 h 53 min | 84.5° |
| August | 05:46 | 12:02 | 18:19 | 12 h 33 min | 87.2° |
| September | 05:48 | 11:52 | 17:56 | 12 h 08 min | 75.8° |
| October | 05:52 | 11:44 | 17:36 | 11 h 44 min | 64.4° |
| November | 06:03 | 11:45 | 17:26 | 11 h 23 min | 55.2° |
| December | 06:20 | 11:57 | 17:34 | 11 h 15 min | 51.6° |
A year of daylight in San Antonio
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 San Antonio
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
16°collects the most energy over a year: 1543 kWh per kWp.
1°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 | August kWh/kWp/day | Best ÷ worst month |
|---|---|---|---|---|
| 0° | 1496 | 97% | 3.45 | 1.5× |
| 1° off-grid best | 1502 | 97% | 3.45 | 1.5× |
| 15° = latitude | 1543 | 100% | 3.35 | 1.5× |
| 16° year-round best | 1543 | 100% | 3.34 | 1.5× |
| 30° | 1503 | 97% | 3.08 | 1.6× |
| 45° | 1379 | 89% | 2.65 | 1.9× |
| 60° | 1181 | 76% | 2.11 | 2.4× |
| 70° | 1017 | 66% | 1.69 | 3.0× |
| 90° | 690 | 45% | 1.01 | 3.3× |
A fixed array in San Antonio produces the most over a year at 16°. The design month for an off-grid system is August: at 1° it makes 3.45 kWh per kWp a day, 3% more than at 16°, and costs 3% of the yearly total. Why steep panels win winter.
Off-grid solar in San Antonio at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 16° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 16° | Mean temp. |
|---|---|---|---|---|---|
| January | 4.79 | 5.15 | 4.21 | 4.40 | 25.9 °C |
| February | 5.54 | 4.93 | 4.03 | 4.86 | 26.2 °C |
| March | 6.26 | 4.23 | 3.43 | 5.16 | 27.3 °C |
| April | 6.68 | 3.03 | 2.42 | 5.13 | 28.7 °C |
| May | 5.98 | 2.08 | 1.64 | 4.40 | 29.0 °C |
| June | 5.27 | 1.78 | 1.40 | 3.82 | 28.3 °C |
| July | 4.73 | 1.82 | 1.43 | 3.48 | 27.6 °C |
| August | 4.38 | 2.13 | 1.69 | 3.34 | 27.4 °C |
| September | 4.78 | 2.91 | 2.35 | 3.81 | 27.4 °C |
| October | 4.96 | 3.90 | 3.16 | 4.18 | 27.5 °C |
| November | 4.68 | 4.66 | 3.79 | 4.18 | 27.3 °C |
| December | 4.37 | 4.85 | 3.96 | 4.03 | 26.5 °C |
| Year | 5.20 avg | 3.45 avg | 1017 kWh | 1543 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 850 Wp of panels at 70°, versus 350 Wp at 16°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in San Antonio
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°
2.4 mrow pitch at 16°
How San Antonio compares in the Philippines
Against the other 519 places in the Philippines with climate data, for a fixed array at its best angle.
26thof 520 places in the Philippines for sunshine, shared: 5.20 peak sun hours a day on flat ground.
+5%solar energy a year compared with the average place in the Philippines: 1,543 against 1,467 kWh per kWp.
+1 mindaylight on the longest day, compared with Quezon City: 13 h 01 min against 13 h 00 min.
16°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); San Antonio ranks joint 26th. 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 15 min, −1 min compared with Quezon City.
Solar forecast for San Antonio, next 48 hours
Expected output of 1 kWp at 70°, computed from the ICON-EU weather model of the Deutscher Wetterdienst (DWD), Europe.
Loading the latest forecast…
Questions about the sun in San Antonio
What is the best solar panel angle in San Antonio?
What time is sunrise and sunset in San Antonio today?
How many peak sun hours does San Antonio get?
How high does the sun get in San Antonio?
Is San Antonio a good place for solar panels?
Places near San Antonio
Put this on your site
A free, live card for San Antonio: 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.