136 places · sun position · panel angle
Solar data for Hong Kong
Across the 136 places in Hong Kong the best fixed tilt for solar panels runs from 18° in Shek O to 20° in Fanling, and flat ground gets 4.1 to 4.2 peak sun hours a day. Every number is computed for each place.
Solar power in Hong Kong at a glance
Averages over 136 places with climate data, for a fixed array facing south.
- 4.11–4.12
- 4.12–4.13
- 4.13–4.14
- 4.14–4.15
- 4.15–4.16
Peak sun hours a day on flat ground. Each dot is one place.
The sunniest places in Hong Kong, with 4.16 peak sun hours a day on flat ground, are Shek O and one other place; the least sunny are Sheung Shui and one other place with 4.11. A 1 kWp array at its best angle makes from 1,251 kWh a year in Ha Tsuen to 1,257 kWh in Shek O — 1,255 kWh on average.
The best year-round tilt runs from 18° in Shek O to 20° in Fanling. Off-grid systems are sized for the darkest month and do better steeper, at 25° on average: at 70° that month brings 1.68 kWh per kWp a day in Sheung Shui and 1.70 kWh in Cheung Chau.
Size an off-grid system or open any place below for its sun path, monthly table and tilt curve.
Sunniest places in Hong Kong
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.
| Rank | Place | Region | Sun hours/day | kWh per kWp a year | Best tilt |
|---|---|---|---|---|---|
| 1 | Shek O | Southern District | 4.16 | 1,257 | 18° |
| 1 | Chek Chue | Southern District | 4.16 | 1,257 | 18° |
| 3 | LOHAS Park | Sai Kung District | 4.15 | 1,257 | 19° |
| 3 | Siu Sai Wan Estate | Eastern District | 4.15 | 1,257 | 19° |
| 3 | Hang Hau | Sai Kung District | 4.15 | 1,257 | 19° |
| 3 | Heng Fa Chuen | Eastern District | 4.15 | 1,257 | 19° |
| 3 | Tiu Keng Leng | Kwun Tong District | 4.15 | 1,257 | 19° |
| 3 | Tseung Kwan O | Sai Kung District | 4.15 | 1,256 | 19° |
| 3 | Yau Tong | Kwun Tong District | 4.15 | 1,256 | 19° |
| 3 | Sai Wan Ho | Eastern District | 4.15 | 1,256 | 19° |
Least sunny places in Hong Kong
| Rank | Place | Region | Sun hours/day | kWh per kWp a year | Best tilt |
|---|---|---|---|---|---|
| 118 | Tuen Mun San Hui | Tuen Mun | 4.12 | 1,251 | 19° |
| 118 | Tin Shui Wai | Yuen Long | 4.12 | 1,251 | 19° |
| 118 | Ha Tsuen | Yuen Long | 4.12 | 1,251 | 19° |
| 135 | San Tin | Yuen Long | 4.11 | 1,252 | 20° |
| 135 | Sheung Shui | North District | 4.11 | 1,252 | 20° |
Solar by region in Hong Kong
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.
| Region | Places | Sun hours/day | kWh per kWp a year | Best tilt | Darkest month at 70° | Sunniest place |
|---|---|---|---|---|---|---|
| Southern District | 11 | 4.15 | 1,256 | 19° | 1.70 kWh | Shek O |
| Eastern District | 10 | 4.15 | 1,256 | 19° | 1.70 kWh | Siu Sai Wan Estate |
| Wan Chai | 2 | 4.15 | 1,256 | 19° | 1.70 kWh | Leighton Hill |
| Kwun Tong District | 6 | 4.15 | 1,256 | 19° | 1.70 kWh | Tiu Keng Leng |
| Hong Kong | 1 | 4.15 | 1,256 | 19° | 1.70 kWh | Hong Kong |
| Sai Kung District | 4 | 4.15 | 1,257 | 19° | 1.69 kWh | LOHAS Park |
| Central and Western | 5 | 4.14 | 1,255 | 19° | 1.70 kWh | The Peak |
| Kowloon City | 17 | 4.14 | 1,256 | 19° | 1.70 kWh | Kai Tak |
| Yau Tsim Mong District | 5 | 4.14 | 1,255 | 19° | 1.70 kWh | Jordan |
| Wong Tai Sin District | 12 | 4.14 | 1,255 | 19° | 1.69 kWh | Choi Wan |
| Sham Shui Po District | 12 | 4.14 | 1,255 | 19° | 1.69 kWh | Shek Kip Mei |
| Islands | 4 | 4.14 | 1,253 | 19° | 1.70 kWh | Cheung Chau |
| Sha Tin | 17 | 4.14 | 1,255 | 19° | 1.69 kWh | Ma On Shan |
| Kwai Tsing District | 4 | 4.13 | 1,254 | 19° | 1.69 kWh | Shek Lei |
| Tsuen Wan | 5 | 4.13 | 1,253 | 19° | 1.69 kWh | Tsuen Wan |
| Tai Po | 4 | 4.13 | 1,254 | 19° | 1.68 kWh | Tai Mei Tuk |
| Tuen Mun | 4 | 4.12 | 1,251 | 19° | 1.69 kWh | Sam Shing |
| Yuen Long | 11 | 4.12 | 1,252 | 19° | 1.69 kWh | Pat Heung |
| North District | 2 | 4.12 | 1,252 | 20° | 1.68 kWh | Fanling |
Largest places in Hong Kong at a glance
| Place | Latitude | Best tilt | Off-grid tilt | Sun hours/day (flat) |
|---|---|---|---|---|
| Hong Kong | 22.3° N | 19° | 27° | 4.15 |
| Victoria | 22.3° N | 19° | 27° | 4.14 |
| Tuen Mun | 22.4° N | 19° | 22° | 4.12 |
| Sha Tin | 22.4° N | 19° | 24° | 4.14 |
| Sham Shui Po | 22.3° N | 19° | 26° | 4.14 |
| Wong Tai Sin | 22.4° N | 19° | 25° | 4.14 |
| Kowloon City | 22.3° N | 19° | 26° | 4.14 |
| Tseung Kwan O | 22.3° N | 19° | 26° | 4.15 |
| Kwai Chung | 22.4° N | 19° | 24° | 4.13 |
| Tsuen Wan | 22.4° N | 19° | 24° | 4.13 |
| Tin Shui Wai | 22.5° N | 19° | 21° | 4.12 |
| Tai Po | 22.5° N | 19° | 22° | 4.13 |
| Fanling | 22.5° N | 20° | 21° | 4.12 |
| Ma On Shan | 22.4° N | 19° | 24° | 4.14 |
| Yuen Long San Hui | 22.4° N | 19° | 22° | 4.12 |
| Yuen Long | 22.4° N | 19° | 21° | 4.12 |
| Tsing Yi Town | 22.4° N | 19° | 25° | 4.13 |
| Yuen Long Kau Hui | 22.4° N | 19° | 21° | 4.12 |
| Wan Chai | 22.3° N | 19° | 27° | 4.15 |
| Aberdeen | 22.2° N | 19° | 28° | 4.15 |
Daylight and clock time in Hong Kong
In Sheung Shui (22.5° N), the northernmost place, the longest day of the year lasts 13 h 31 min and the shortest 10 h 45 min; in Cheung Chau (22.2° N), the southernmost, 13 h 30 min and 10 h 47 min. Hong Kong does not use daylight saving time: the clocks stay the same all year.
| Time zone | Places | UTC offset | Clocks change in 2026 |
|---|---|---|---|
| Asia/Hong_Kong | 136 | UTC+8 | no daylight saving time |