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Solar data for Singapore

Across the 31 places in Singapore the best fixed tilt for solar panels is 1°, and flat ground gets 4.6 to 4.7 peak sun hours a day. Every number is computed for each place.

Solar power in Singapore at a glance

Averages over 31 places with climate data, for a fixed array facing south.

Best panel angle1°average, facing south
Peak sun hours4.65a day on flat ground
1 kWp makes1,339kWh a year at the best angle
Off-grid angle6°average, for the darkest month
SingaporeKampong Loyang (most sun)
  • 4.61–4.63
  • 4.63–4.64
  • 4.64–4.66
  • 4.66–4.67
  • 4.67–4.68

Peak sun hours a day on flat ground. Each dot is one place.

The sunniest places in Singapore, with 4.68 peak sun hours a day on flat ground, are Kampong Loyang and 3 other places; the least sunny is Boon Lay with 4.61. A 1 kWp array at its best angle makes from 1,327 kWh a year in Boon Lay to 1,349 kWh in Kampong Loyang — 1,339 kWh on average.

The best year-round tilt is 1° everywhere. Off-grid systems are sized for the darkest month and do better steeper, at 6° on average: at 70° that month brings 1.06 kWh per kWp a day in Bedok New Town and 1.08 kWh in Boon Lay.

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

Sunniest places in Singapore

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
1Kampong LoyangSingapore4.681,3491°
1Kampong Pasir RisSingapore4.681,3471°
1PunggolSingapore4.681,3461°
1Bedok New TownSingapore4.681,3461°
5Ulu BedokSingapore4.671,3461°
5Matilda EstateSingapore4.671,3461°
5Sengkang New TownSingapore4.671,3451°
8Marine ParadeSingapore4.661,3431°
8EunosSingapore4.661,3431°
8Sembawang EstateSingapore4.661,3421°

Least sunny places in Singapore

RankPlaceRegionSun hours/daykWh per kWp a yearBest tilt
24Keat Hong VillageSingapore4.631,3341°
28Jurong EastSingapore4.621,3311°
28Jurong WestSingapore4.621,3311°
28Jurong TownSingapore4.621,3301°
31Boon LaySingapore4.611,3271°

Largest places in Singapore at a glance

PlaceLatitudeBest tiltOff-grid tiltSun hours/day (flat)
Singapore1.3° N1°5°4.65
Ulu Bedok1.3° N1°6°4.67
Bedok New Town1.3° N1°6°4.68
Sengkang New Town1.4° N1°6°4.67
Jurong Town1.3° N1°5°4.62
Woodlands1.4° N1°6°4.65
Jurong West1.4° N1°5°4.62
Yishun New Town1.4° N1°6°4.66
Punggol1.4° N1°6°4.68
Choa Chu Kang New Town1.4° N1°5°4.63
Ang Mo Kio New Town1.4° N1°6°4.66
Kampong Pasir Ris1.4° N1°6°4.68
Bukit Panjang New Town1.4° N1°5°4.64
Sembawang Estate1.5° N1°6°4.66
Queenstown Estate1.3° N1°5°4.64
Bukit Timah1.3° N1°5°4.64
Jurong East1.3° N1°5°4.62
Novena1.3° N1°6°4.65
Matilda Estate1.4° N1°6°4.67
Marine Parade1.3° N1°6°4.66

Daylight and clock time in Singapore

In Sembawang Estate (1.5° N), the northernmost place, the longest day of the year lasts 12 h 12 min and the shortest 12 h 02 min; in Singapore (1.3° N), the southernmost, 12 h 12 min and 12 h 03 min. Singapore does not use daylight saving time: the clocks stay the same all year.

Time zonePlacesUTC offsetClocks change in 2026
Asia/Singapore31UTC+8no daylight saving time

Questions about solar in Singapore

What is the best angle for solar panels in Singapore?
Facing south, 1° everywhere — 1° on average over 31 places. Off-grid systems that must get through the darkest month do better steeper, at about 6° on average.
How many peak sun hours does Singapore get?
From 4.6 hours a day in Boon Lay to 4.7 in Kampong Loyang on flat ground, averaged over the year; 4.7 on average.
How much electricity does 1 kWp of solar panels produce in Singapore?
About 1,339 kWh a year at the best fixed angle on average, from 1,327 kWh in Boon Lay to 1,349 kWh in Kampong Loyang. These are long-term climate averages; a single year can be several per cent higher or lower.
Where is the sunniest place in Singapore?
Kampong Loyang (Singapore) and 3 other places share the most sun of the 31 places: 4.68 peak sun hours a day on flat ground. 1 kWp in Kampong Loyang makes about 1,349 kWh a year.
Does Singapore use daylight saving time?
Singapore does not use daylight saving time: the clocks stay the same all year.
How long is the longest day in Singapore?
12 h 12 min in Sembawang Estate; the shortest day lasts 12 h 02 min in Sembawang Estate.

All places in Singapore