Ma On Shan weather in May
In May, Ma On Shan sees average daytime highs of 28°C and overnight lows near 24°C, with 229 mm of rain across 20 wet days and about 13.1 hours of daylight. It is the 5th-warmest and 4th-wettest month of the year here.
Highs climb over the month, from about 27°C in the first days to 29°C by the end. The sky is clear or mostly clear about 13% of the time in May, and the air most often feels miserable.
Daylight stretches from about 12 h 48 min at the start of May to 13 h 18 min by month's end. Set against the rest of the year, May is Ma On Shan's 11th-clearest and 10th-windiest month. For the whole year in context, see Ma On Shan's year-round climate.
- Daytime high
- 28°
- 5th warmest
- Overnight low
- 24°
- 8th coldest
- Rainfall
- 229 mm
- 20 wet days
- Daylight
- 13 h 06 min
- 5:47 AM – 6:51 PM
- Cloud cover
- 76%
- 11th clearest
- Wind
- 11 km/h
- 10th windiest
- Solar energy
- 4.81 kWh/m²
- Travel score
- 4.5
- out of 10
Temperature in May
Highs climb over the month, from about 27°C in the first days to 29°C by the end.
A typical May day in Ma On Shan reaches about 28°C in the afternoon and slips back to 24°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 31°C. Set against its neighbours, May runs about 3°C warmer than April and about 2°C cooler than June.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 |
| Avg low (°C) | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 27 | 23 |
| 2 | 27 | 23 |
| 3 | 27 | 23 |
| 4 | 27 | 23 |
| 5 | 27 | 23 |
| 6 | 27 | 24 |
| 7 | 27 | 24 |
| 8 | 28 | 24 |
| 9 | 28 | 24 |
| 10 | 28 | 24 |
| 11 | 28 | 24 |
| 12 | 28 | 24 |
| 13 | 28 | 24 |
| 14 | 28 | 24 |
| 15 | 28 | 24 |
| 16 | 28 | 24 |
| 17 | 28 | 25 |
| 18 | 28 | 25 |
| 19 | 28 | 25 |
| 20 | 29 | 25 |
| 21 | 29 | 25 |
| 22 | 29 | 25 |
| 23 | 29 | 25 |
| 24 | 29 | 25 |
| 25 | 29 | 25 |
| 26 | 29 | 25 |
| 27 | 29 | 25 |
| 28 | 29 | 25 |
| 29 | 29 | 25 |
| 30 | 29 | 25 |
| 31 | 29 | 26 |
How May really feels in Ma On Shan
Once humidity and wind are folded in, May averages 15 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
The story in May is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Ma On Shan weather by month
How May compares with the rest of the year at a glance. May is the 5th-warmest and 4th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 18° / 13° | 24 | 4 | 10.8 | 6.8 |
| Feb | 19° / 14° | 34 | 6.3 | 11.2 | 6.4 |
| Mar | 21° / 17° | 68 | 10.1 | 11.8 | 6.3 |
| Apr | 25° / 21° | 123 | 14.1 | 12.5 | 5.9 |
| May | 28° / 24° | 229 | 20 | 13.1 | 4.5 |
| Jun | 30° / 26° | 314 | 23.8 | 13.3 | 3.2 |
| Jul | 31° / 27° | 243 | 22.9 | 13.2 | 3.1 |
| Aug | 31° / 27° | 308 | 23.9 | 12.8 | 3.1 |
| Sep | 30° / 26° | 203 | 17 | 12.1 | 4.2 |
| Oct | 27° / 23° | 64 | 6.9 | 11.5 | 7.0 |
| Nov | 24° / 19° | 36 | 4.9 | 10.9 | 8.0 |
| Dec | 20° / 15° | 29 | 3.9 | 10.7 | 7.3 |
Cloud cover in May
The sky is clear or mostly clear about 13% of the time in May.
Beyond those clear spells, partly cloudy skies cover about 13% of May, with mostly cloudy or overcast conditions the remaining 75%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 30 | 29 | 29 | 29 | 28 | 30 | 30 | 29 | 30 | 29 | 28 | 27 | 27 | 26 | 26 | 26 | 24 | 24 | 23 | 23 | 23 | 21 | 21 | 21 | 22 | 22 | 22 | 22 | 22 | 22 | 22 |
| Cloudier (%) | 70 | 71 | 71 | 71 | 72 | 70 | 70 | 71 | 70 | 71 | 72 | 73 | 73 | 74 | 74 | 74 | 76 | 76 | 77 | 77 | 77 | 79 | 79 | 79 | 78 | 78 | 78 | 78 | 78 | 78 | 78 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 30 | 70 |
| 2 | 29 | 71 |
| 3 | 29 | 71 |
| 4 | 29 | 71 |
| 5 | 28 | 72 |
| 6 | 30 | 70 |
| 7 | 30 | 70 |
| 8 | 29 | 71 |
| 9 | 30 | 70 |
| 10 | 29 | 71 |
| 11 | 28 | 72 |
| 12 | 27 | 73 |
| 13 | 27 | 73 |
| 14 | 26 | 74 |
| 15 | 26 | 74 |
| 16 | 26 | 74 |
| 17 | 24 | 76 |
| 18 | 24 | 76 |
| 19 | 23 | 77 |
| 20 | 23 | 77 |
| 21 | 23 | 77 |
| 22 | 21 | 79 |
| 23 | 21 | 79 |
| 24 | 21 | 79 |
| 25 | 22 | 78 |
| 26 | 22 | 78 |
| 27 | 22 | 78 |
| 28 | 22 | 78 |
| 29 | 22 | 78 |
| 30 | 22 | 78 |
| 31 | 22 | 78 |
Chance of precipitation in May
Ma On Shan gets around 229 mm of rain over 20 wet days in May. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 64% and peaks near 69% on the wettest days. The odds climb toward the end of the month.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 58 | 59 | 59 | 59 | 60 | 60 | 60 | 60 | 61 | 61 | 62 | 62 | 63 | 63 | 64 | 64 | 65 | 66 | 66 | 67 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 69 | 69 |
| Rain chance (%) | |
|---|---|
| 1 | 58 |
| 2 | 59 |
| 3 | 59 |
| 4 | 59 |
| 5 | 60 |
| 6 | 60 |
| 7 | 60 |
| 8 | 60 |
| 9 | 61 |
| 10 | 61 |
| 11 | 62 |
| 12 | 62 |
| 13 | 63 |
| 14 | 63 |
| 15 | 64 |
| 16 | 64 |
| 17 | 65 |
| 18 | 66 |
| 19 | 66 |
| 20 | 67 |
| 21 | 68 |
| 22 | 68 |
| 23 | 68 |
| 24 | 68 |
| 25 | 68 |
| 26 | 68 |
| 27 | 68 |
| 28 | 68 |
| 29 | 68 |
| 30 | 69 |
| 31 | 69 |
Humidity in May
Most of May feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, May lands in the miserable band about 45% of days. Sticky, muggy-or-worse air turns up on roughly 95% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Comfortable (%) | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Humid (%) | 8 | 8 | 8 | 7 | 7 | 6 | 6 | 6 | 5 | 5 | 5 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 |
| Muggy (%) | 23 | 23 | 22 | 22 | 21 | 20 | 19 | 19 | 18 | 17 | 16 | 16 | 15 | 14 | 13 | 13 | 12 | 12 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 9 | 9 | 8 | 8 | 7 | 7 |
| Oppressive (%) | 45 | 45 | 45 | 44 | 44 | 44 | 43 | 43 | 42 | 41 | 41 | 40 | 40 | 39 | 39 | 38 | 37 | 36 | 35 | 34 | 33 | 33 | 32 | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 |
| Miserable (%) | 21 | 22 | 24 | 25 | 27 | 29 | 31 | 32 | 34 | 36 | 38 | 40 | 41 | 43 | 44 | 46 | 47 | 49 | 51 | 52 | 53 | 54 | 56 | 57 | 58 | 60 | 61 | 63 | 64 | 67 | 68 |
| Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|
| 1 | 2 | 8 | 23 | 45 | 21 |
| 2 | 2 | 8 | 23 | 45 | 22 |
| 3 | 1 | 8 | 22 | 45 | 24 |
| 4 | 1 | 7 | 22 | 44 | 25 |
| 5 | 1 | 7 | 21 | 44 | 27 |
| 6 | 1 | 6 | 20 | 44 | 29 |
| 7 | 1 | 6 | 19 | 43 | 31 |
| 8 | 1 | 6 | 19 | 43 | 32 |
| 9 | 1 | 5 | 18 | 42 | 34 |
| 10 | 0 | 5 | 17 | 41 | 36 |
| 11 | 0 | 5 | 16 | 41 | 38 |
| 12 | 0 | 4 | 16 | 40 | 40 |
| 13 | 0 | 4 | 15 | 40 | 41 |
| 14 | 0 | 4 | 14 | 39 | 43 |
| 15 | 0 | 3 | 13 | 39 | 44 |
| 16 | 0 | 3 | 13 | 38 | 46 |
| 17 | 0 | 3 | 12 | 37 | 47 |
| 18 | 0 | 3 | 12 | 36 | 49 |
| 19 | 0 | 3 | 11 | 35 | 51 |
| 20 | 0 | 3 | 11 | 34 | 52 |
| 21 | 0 | 3 | 11 | 33 | 53 |
| 22 | 0 | 3 | 10 | 33 | 54 |
| 23 | 0 | 2 | 10 | 32 | 56 |
| 24 | 0 | 2 | 10 | 31 | 57 |
| 25 | 0 | 2 | 10 | 30 | 58 |
| 26 | 0 | 2 | 9 | 29 | 60 |
| 27 | 0 | 2 | 9 | 28 | 61 |
| 28 | 0 | 2 | 8 | 27 | 63 |
| 29 | 0 | 2 | 8 | 26 | 64 |
| 30 | 0 | 1 | 7 | 25 | 67 |
| 31 | 0 | 1 | 7 | 24 | 68 |
Wind in May
Winds average 11 km/h in May.
Across May, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 12 | calm |
| 2 | 12 | calm |
| 3 | 12 | calm |
| 4 | 12 | calm |
| 5 | 12 | calm |
| 6 | 12 | calm |
| 7 | 12 | calm |
| 8 | 11 | calm |
| 9 | 11 | calm |
| 10 | 11 | calm |
| 11 | 11 | calm |
| 12 | 11 | calm |
| 13 | 11 | calm |
| 14 | 11 | calm |
| 15 | 11 | calm |
| 16 | 11 | calm |
| 17 | 11 | calm |
| 18 | 11 | calm |
| 19 | 11 | calm |
| 20 | 11 | calm |
| 21 | 11 | calm |
| 22 | 11 | calm |
| 23 | 11 | calm |
| 24 | 11 | calm |
| 25 | 11 | calm |
| 26 | 11 | calm |
| 27 | 11 | calm |
| 28 | 11 | calm |
| 29 | 11 | calm |
| 30 | 11 | calm |
| 31 | 11 | calm |
Sunrise & sunset in May
Daylight runs from about 12 h 48 min at the start of May to 13 h 18 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 30 minutes over May. Sunrise moves from 5:56 AM to 5:43 AM, and sunset from 6:45 PM to 6:58 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 12.8 | 12.8 | 12.9 | 12.9 | 12.9 | 12.9 | 12.9 | 12.9 | 13.0 | 13.0 | 13.0 | 13.0 | 13.0 | 13.0 | 13.1 | 13.1 | 13.1 | 13.1 | 13.1 | 13.1 | 13.1 | 13.2 | 13.2 | 13.2 | 13.2 | 13.2 | 13.2 | 13.2 | 13.2 | 13.2 | 13.3 |
| Sunrise (AM) | 5:56 | 5:55 | 5:54 | 5:54 | 5:53 | 5:52 | 5:52 | 5:51 | 5:51 | 5:50 | 5:50 | 5:49 | 5:49 | 5:48 | 5:48 | 5:47 | 5:47 | 5:46 | 5:46 | 5:46 | 5:45 | 5:45 | 5:45 | 5:44 | 5:44 | 5:44 | 5:43 | 5:43 | 5:43 | 5:43 | 5:43 |
| Sunset (PM) | 6:45 | 6:45 | 6:46 | 6:46 | 6:46 | 6:47 | 6:47 | 6:48 | 6:48 | 6:49 | 6:49 | 6:50 | 6:50 | 6:50 | 6:51 | 6:51 | 6:52 | 6:52 | 6:53 | 6:53 | 6:54 | 6:54 | 6:55 | 6:55 | 6:56 | 6:56 | 6:56 | 6:57 | 6:57 | 6:58 | 6:58 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.8 | 5:56 | 6:45 |
| 2 | 12.8 | 5:55 | 6:45 |
| 3 | 12.9 | 5:54 | 6:46 |
| 4 | 12.9 | 5:54 | 6:46 |
| 5 | 12.9 | 5:53 | 6:46 |
| 6 | 12.9 | 5:52 | 6:47 |
| 7 | 12.9 | 5:52 | 6:47 |
| 8 | 12.9 | 5:51 | 6:48 |
| 9 | 13.0 | 5:51 | 6:48 |
| 10 | 13.0 | 5:50 | 6:49 |
| 11 | 13.0 | 5:50 | 6:49 |
| 12 | 13.0 | 5:49 | 6:50 |
| 13 | 13.0 | 5:49 | 6:50 |
| 14 | 13.0 | 5:48 | 6:50 |
| 15 | 13.1 | 5:48 | 6:51 |
| 16 | 13.1 | 5:47 | 6:51 |
| 17 | 13.1 | 5:47 | 6:52 |
| 18 | 13.1 | 5:46 | 6:52 |
| 19 | 13.1 | 5:46 | 6:53 |
| 20 | 13.1 | 5:46 | 6:53 |
| 21 | 13.1 | 5:45 | 6:54 |
| 22 | 13.2 | 5:45 | 6:54 |
| 23 | 13.2 | 5:45 | 6:55 |
| 24 | 13.2 | 5:44 | 6:55 |
| 25 | 13.2 | 5:44 | 6:56 |
| 26 | 13.2 | 5:44 | 6:56 |
| 27 | 13.2 | 5:43 | 6:56 |
| 28 | 13.2 | 5:43 | 6:57 |
| 29 | 13.2 | 5:43 | 6:57 |
| 30 | 13.2 | 5:43 | 6:58 |
| 31 | 13.3 | 5:43 | 6:58 |
Solar energy in May
Average shortwave solar energy reaching the ground each day in May, about 4.81 kWh/m².
For context, solar energy here swings from a low near 3.36 kWh/m² to a high of 5.41 kWh/m² in July across the year — May's 4.81 kWh/m² falls in the middle.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.9 | 4.9 | 4.9 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 4.8 | Bright |
| 2 | 4.8 | Bright |
| 3 | 4.8 | Bright |
| 4 | 4.8 | Bright |
| 5 | 4.8 | Bright |
| 6 | 4.8 | Bright |
| 7 | 4.8 | Bright |
| 8 | 4.8 | Bright |
| 9 | 4.8 | Bright |
| 10 | 4.8 | Bright |
| 11 | 4.9 | Bright |
| 12 | 4.9 | Bright |
| 13 | 4.9 | Bright |
| 14 | 4.8 | Bright |
| 15 | 4.8 | Bright |
| 16 | 4.8 | Bright |
| 17 | 4.8 | Bright |
| 18 | 4.8 | Bright |
| 19 | 4.8 | Bright |
| 20 | 4.8 | Bright |
| 21 | 4.8 | Bright |
| 22 | 4.8 | Bright |
| 23 | 4.8 | Bright |
| 24 | 4.8 | Bright |
| 25 | 4.8 | Bright |
| 26 | 4.8 | Bright |
| 27 | 4.8 | Bright |
| 28 | 4.8 | Bright |
| 29 | 4.8 | Bright |
| 30 | 4.8 | Bright |
| 31 | 4.8 | Bright |
Hazard calendar for Ma On Shan
In May, Ma On Shan sits inside its pacific typhoon and monsoon season. The full year is below, with each hazard's peak months called out.
Ma On Shan sits in the Pacific typhoon belt; the season peaks July–October.
Ma On Shan's monsoon runs May–September, when most of the year's rain falls.
Is May a good time to visit Ma On Shan?
Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
May is a reasonable time to visit Ma On Shan for sightseeing.
What to pack for Ma On Shan in May
From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In May, Ma On Shan sees daytime highs around 28°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 20 days see rain.
Sea temperature near Ma On Shan in May
The nearest coast averages about 26°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 14 km away) is warmest in July at about 29°C and coldest in January near 20°C.
It's comfortable for a long swim from Feb 23 to Jan 5 — about 10.4 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 20 | 20 | 21 | 23 | 26 | 28 | 29 | 29 | 28 | 27 | 24 | 21 |
| Comfort | Cool | Cool | Refreshing | Refreshing | Warm | Warm | Tropical | Tropical | Tropical | Warm | Refreshing | Refreshing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 20 | Cool |
| Feb | 20 | Cool |
| Mar | 21 | Refreshing |
| Apr | 23 | Refreshing |
| May | 26 | Warm |
| Jun | 28 | Warm |
| Jul | 29 | Tropical |
| Aug | 29 | Tropical |
| Sep | 28 | Tropical |
| Oct | 27 | Warm |
| Nov | 24 | Refreshing |
| Dec | 21 | Refreshing |
UV index in Ma On Shan in May
Clear-sky midday UV in May peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Ma On Shan peaks around July 13 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 at about 6 (high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 6 | 8 | 9 | 9 | 10 | 12 | 12 | 11 | 10 | 8 | 7 | 6 |
| Level | High | Very high | Very high | Very high | Very high | Extreme | Extreme | Extreme | Very high | Very high | High | High |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 6 | High |
| Feb | 8 | Very high |
| Mar | 9 | Very high |
| Apr | 9 | Very high |
| May | 10 | Very high |
| Jun | 12 | Extreme |
| Jul | 12 | Extreme |
| Aug | 11 | Extreme |
| Sep | 10 | Very high |
| Oct | 8 | Very high |
| Nov | 7 | High |
| Dec | 6 | High |
Air quality in Ma On Shan in May
Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.
Air quality in Ma On Shan is worst in January — around 183 µg/m³ PM2.5 (very unhealthy), about 2.5× the cleanest month (July, 73 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 183 | 175 | 165 | 149 | 115 | 83 | 73 | 85 | 119 | 127 | 157 | 156 |
| Level | Very unhealthy | Very unhealthy | Very unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Very unhealthy | Very unhealthy |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 183 | Very unhealthy |
| Feb | 175 | Very unhealthy |
| Mar | 165 | Very unhealthy |
| Apr | 149 | Unhealthy |
| May | 115 | Unhealthy |
| Jun | 83 | Unhealthy |
| Jul | 73 | Unhealthy |
| Aug | 85 | Unhealthy |
| Sep | 119 | Unhealthy |
| Oct | 127 | Unhealthy |
| Nov | 157 | Very unhealthy |
| Dec | 156 | Very unhealthy |
Where is Ma On Shan?
Ma On Shan sits at 22.4°N, 114.2°E, 217 m above sea level, in Hong Kong. The nearest listed city is Tai Shui Hang, 2.0 km away.
Topography around Ma On Shan
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Ma On Shan.
Within 3 km, the terrain around Ma On Shan has large variations in elevation — a maximum elevation change of 645 m around an average of 178 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 941 m; within 80 km, large variations in elevation — a maximum elevation change of 1,005 m.
The land around Ma On Shan is covered by trees (76%) within 3 km, trees (54%) and water (31%) within 16 km, and water (57%) and trees (27%) within 80 km.
Hong Kong travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type D / G / M
- 220 V · 50 Hz
- Prices
- ≈ 71% of US
- price level, 2025
- GDP per capita
- $56,983
- 2025
- Happiness
- 5.6 / 10
- World Happiness, 2025
- Safe drinking water
- 100%
- of population, 2024
- Homicide rate
- 0.4
- per 100k, 2023
- Income group
- High
- World Bank
- English
- Moderate
- EF EPI 538
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Ma On Shan (22.4061°, 114.2408°, elevation 217 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).