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520 places · sun position · panel angle

Solar data for the Philippines

Across the 520 places in the Philippines the best fixed tilt for solar panels runs from 4° in Bongao to 18° in Vigan, and flat ground gets 4.7 to 5.4 peak sun hours a day. Every number is computed for each place.

Solar power in the Philippines at a glance

Averages over 520 places with climate data, for a fixed array facing south.

Best panel angle11°average, facing south
Peak sun hours4.99a day on flat ground
1 kWp makes1,467kWh a year at the best angle
Off-grid angle14°average, for the darkest month
Quezon CityJolo (most sun)
  • 4.68–4.82
  • 4.82–4.95
  • 4.95–5.09
  • 5.09–5.23
  • 5.23–5.36

Peak sun hours a day on flat ground. Each dot is one place. 1 far-off place lies outside the frame.

The sunniest place in the Philippines is Jolo (Autonomous Region in Muslim Mindanao) with 5.36 peak sun hours a day on flat ground; the least sunny is Pangil with 4.68. A 1 kWp array at its best angle makes from 1,376 kWh a year in Pangil to 1,583 kWh in Vigan — 1,467 kWh on average.

The best year-round tilt runs from 4° in Bongao to 18° in Vigan. Off-grid systems are sized for the darkest month and do better steeper, at 14° on average: at 70° that month brings 1.04 kWh per kWp a day in Sitangkai and 1.61 kWh in Aparri.

Size an off-grid system or open any place below for its sun path, monthly table and tilt curve.

Sunniest places in the Philippines

Ranked by peak sun hours on flat ground: the yearly average of a day's sunshine energy (NASA POWER climatology). Output: 1 kWp at its best year-round angle.

RankPlaceRegionSun hours/daykWh per kWp a yearBest tilt
1JoloAutonomous Region in Muslim Mindanao5.361,5516°
2BongaoAutonomous Region in Muslim Mindanao5.341,5434°
2SitangkaiAutonomous Region in Muslim Mindanao5.341,5414°
4CulionMimaropa5.321,56313°
5MalusoAutonomous Region in Muslim Mindanao5.281,5317°
5Al-BarkaAutonomous Region in Muslim Mindanao5.281,5297°
7ViganIlocos5.271,58318°
7BantayIlocos5.271,58218°
7City of IsabelaAutonomous Region in Muslim Mindanao5.271,5287°
7MapunMimaropa5.271,5236°

Least sunny places in the Philippines

RankPlaceRegionSun hours/daykWh per kWp a yearBest tilt
516PilillaCalabarzon4.731,39112°
517LumbangCalabarzon4.721,38612°
518SampalocCalabarzon4.711,38412°
519PaeteCalabarzon4.691,37712°
520PangilCalabarzon4.681,37612°

Solar by region in the Philippines

Averages of the places in each region, sunniest first. Darkest month: what 1 kWp of off-grid panels at 70° makes a day in the worst month of the year.

RegionPlacesSun hours/daykWh per kWp a yearBest tiltDarkest month at 70°Sunniest place
Zamboanga Peninsula105.191,5088°1.17 kWhMuricay
Ilocos245.151,54017°1.49 kWhVigan
Autonomous Region in Muslim Mindanao195.151,5026°1.14 kWhJolo
Mimaropa165.131,50111°1.28 kWhCulion
Soccsksargen235.111,4906°1.13 kWhGlan
Western Visayas365.081,48410°1.26 kWhPulupandan
Central Visayas355.061,4769°1.25 kWhJagna
Davao Region195.021,4636°1.17 kWhMalita
Central Luzon1035.021,48815°1.42 kWhSanta Cruz
Cordillera95.011,49715°1.53 kWhBangued
Northern Mindanao235.011,4657°1.21 kWhNunungan
Eastern Visayas174.951,4429°1.27 kWhMaasin
Bicol Region304.911,43711°1.34 kWhEsperanza
Calabarzon904.871,43313°1.40 kWhCalatagan
National Capital Region294.871,43513°1.41 kWhTanza
Caraga184.861,4147°1.20 kWhTandag
Cagayan Valley194.821,43213°1.55 kWhDupax del Sur

Largest places in the Philippines at a glance

PlaceLatitudeBest tiltOff-grid tiltSun hours/day (flat)
Quezon City14.6° N13°16°4.86
Davao7.1° N6°12°5.06
Caloocan14.6° N13°14°4.89
Manila14.6° N13°15°4.88
Taguig14.5° N13°17°4.83
Budta7.2° N7°5°5.05
Malingao7.2° N7°5°5.04
Zamboanga6.9° N7°0°5.25
Cebu City10.3° N9°16°5.04
Antipolo14.6° N13°18°4.82
Pasig City14.6° N13°17°4.85
Cagayan de Oro8.5° N7°16°5.01
Valenzuela14.7° N13°14°4.90
General Santos6.1° N6°6°5.21
Paranaque City14.5° N13°16°4.86
Las Piñas14.5° N13°15°4.89
Calamba14.2° N13°19°4.86
Muntinlupa14.4° N13°16°4.87
Makati City14.6° N13°16°4.86
Lapu-Lapu City10.3° N9°16°5.04

Daylight and clock time in the Philippines

In Sanchez-Mira (18.6° N), the northernmost place, the longest day of the year lasts 13 h 15 min and the shortest 11 h 01 min; in Sitangkai (4.7° N), the southernmost, 12 h 24 min and 11 h 51 min. The Philippines does not use daylight saving time: the clocks stay the same all year.

Time zonePlacesUTC offsetClocks change in 2026
Asia/Manila520UTC+8no daylight saving time

Questions about solar in the Philippines

What is the best angle for solar panels in the Philippines?
Facing south, between 4° and 18° depending on the place — 11° on average over 520 places. Off-grid systems that must get through the darkest month do better steeper, at about 14° on average.
How many peak sun hours does the Philippines get?
From 4.7 hours a day in Pangil to 5.4 in Jolo on flat ground, averaged over the year; 5.0 on average.
How much electricity does 1 kWp of solar panels produce in the Philippines?
About 1,467 kWh a year at the best fixed angle on average, from 1,376 kWh in Pangil to 1,583 kWh in Vigan. These are long-term climate averages; a single year can be several per cent higher or lower.
Where is the sunniest place in the Philippines?
Jolo (Autonomous Region in Muslim Mindanao) gets the most sun of the 520 places: 5.36 peak sun hours a day on flat ground, so 1 kWp there makes about 1,551 kWh a year.
Does the Philippines use daylight saving time?
The Philippines does not use daylight saving time: the clocks stay the same all year.
How long is the longest day in the Philippines?
13 h 15 min in Sanchez-Mira; the shortest day lasts 11 h 01 min in Sanchez-Mira.

All places in the Philippines