Tuen Mun San Hui weather in January
In January, Tuen Mun San Hui sees average daytime highs of 19°C and overnight lows near 13°C, with 32 mm of rain across 5.5 wet days and about 10.8 hours of daylight. It is the 12th-warmest and 11th-wettest month of the year here.
Day-to-day highs hold fairly steady near 19°C through the month. The sky is clear or mostly clear about 41% of the time in January, and the air most often feels dry.
Daylight stretches from about 10 h 42 min at the start of January to 11 hours by month's end. Set against the rest of the year, January is Tuen Mun San Hui's 4th-clearest and 3rd-windiest month. For the whole year in context, see Tuen Mun San Hui's year-round climate.
- Daytime high
- 19°
- 12th warmest
- Overnight low
- 13°
- 1st coldest
- Rainfall
- 32 mm
- 5.5 wet days
- Daylight
- 10 h 48 min
- 7:10 AM – 5:56 PM
- Cloud cover
- 51%
- 4th clearest
- Wind
- 13 km/h
- 3rd windiest
- Solar energy
- 3.39 kWh/m²
- Travel score
- 6.9
- out of 10
Temperature in January
Day-to-day highs hold fairly steady near 19°C through the month.
A typical January day in Tuen Mun San Hui reaches about 19°C in the afternoon and slips back to 13°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 23°C. Set against its neighbours, January runs about 2°C cooler than December and about 1°C cooler than February.
| 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) | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 |
| Avg low (°C) | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 19 | 14 |
| 2 | 19 | 14 |
| 3 | 19 | 14 |
| 4 | 19 | 14 |
| 5 | 19 | 13 |
| 6 | 19 | 13 |
| 7 | 19 | 13 |
| 8 | 19 | 13 |
| 9 | 19 | 13 |
| 10 | 19 | 13 |
| 11 | 19 | 13 |
| 12 | 19 | 13 |
| 13 | 19 | 13 |
| 14 | 19 | 13 |
| 15 | 19 | 13 |
| 16 | 19 | 13 |
| 17 | 19 | 13 |
| 18 | 19 | 13 |
| 19 | 19 | 13 |
| 20 | 19 | 13 |
| 21 | 19 | 13 |
| 22 | 19 | 13 |
| 23 | 19 | 13 |
| 24 | 19 | 13 |
| 25 | 19 | 13 |
| 26 | 19 | 13 |
| 27 | 19 | 13 |
| 28 | 19 | 13 |
| 29 | 19 | 13 |
| 30 | 19 | 13 |
| 31 | 19 | 13 |
How January really feels in Tuen Mun San Hui
Once humidity and wind are folded in, January averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
January sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Tuen Mun San Hui weather by month
How January compares with the rest of the year at a glance. January is the 12th-warmest and 11th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 19° / 13° | 32 | 5.5 | 10.8 | 6.9 |
| Feb | 20° / 15° | 43 | 7.8 | 11.2 | 6.4 |
| Mar | 22° / 17° | 75 | 11.4 | 11.8 | 6.3 |
| Apr | 26° / 21° | 125 | 13.8 | 12.5 | 5.8 |
| May | 29° / 24° | 229 | 19.1 | 13.1 | 4.4 |
| Jun | 30° / 26° | 319 | 22.9 | 13.3 | 3.2 |
| Jul | 31° / 27° | 243 | 22.1 | 13.2 | 3.1 |
| Aug | 31° / 27° | 313 | 23.6 | 12.8 | 3.1 |
| Sep | 30° / 26° | 199 | 16.6 | 12.1 | 4.1 |
| Oct | 28° / 23° | 61 | 6.7 | 11.5 | 6.7 |
| Nov | 25° / 19° | 34 | 4.9 | 10.9 | 7.9 |
| Dec | 21° / 15° | 31 | 4.2 | 10.7 | 7.5 |
Cloud cover in January
The sky is clear or mostly clear about 41% of the time in January.
Beyond those clear spells, partly cloudy skies cover about 14% of January, with mostly cloudy or overcast conditions the remaining 45%. Skies tend to cloud over as the month goes on.
| 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 (%) | 63 | 62 | 62 | 62 | 61 | 60 | 60 | 59 | 59 | 58 | 58 | 57 | 57 | 55 | 55 | 54 | 54 | 53 | 53 | 52 | 52 | 52 | 52 | 52 | 51 | 51 | 50 | 50 | 50 | 50 | 49 |
| Cloudier (%) | 37 | 38 | 38 | 38 | 39 | 40 | 40 | 41 | 41 | 42 | 42 | 43 | 43 | 45 | 45 | 46 | 46 | 47 | 47 | 48 | 48 | 48 | 48 | 48 | 49 | 49 | 50 | 50 | 50 | 50 | 51 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 63 | 37 |
| 2 | 62 | 38 |
| 3 | 62 | 38 |
| 4 | 62 | 38 |
| 5 | 61 | 39 |
| 6 | 60 | 40 |
| 7 | 60 | 40 |
| 8 | 59 | 41 |
| 9 | 59 | 41 |
| 10 | 58 | 42 |
| 11 | 58 | 42 |
| 12 | 57 | 43 |
| 13 | 57 | 43 |
| 14 | 55 | 45 |
| 15 | 55 | 45 |
| 16 | 54 | 46 |
| 17 | 54 | 46 |
| 18 | 53 | 47 |
| 19 | 53 | 47 |
| 20 | 52 | 48 |
| 21 | 52 | 48 |
| 22 | 52 | 48 |
| 23 | 52 | 48 |
| 24 | 52 | 48 |
| 25 | 51 | 49 |
| 26 | 51 | 49 |
| 27 | 50 | 50 |
| 28 | 50 | 50 |
| 29 | 50 | 50 |
| 30 | 50 | 50 |
| 31 | 49 | 51 |
Chance of precipitation in January
Tuen Mun San Hui gets around 32 mm of rain over 5.5 wet days in January. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 18% and peaks near 21% 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 (%) | 14 | 14 | 14 | 14 | 15 | 15 | 15 | 16 | 16 | 16 | 17 | 17 | 17 | 17 | 18 | 18 | 18 | 19 | 19 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 21 | 21 | 21 | 21 |
| Rain chance (%) | |
|---|---|
| 1 | 14 |
| 2 | 14 |
| 3 | 14 |
| 4 | 14 |
| 5 | 15 |
| 6 | 15 |
| 7 | 15 |
| 8 | 16 |
| 9 | 16 |
| 10 | 16 |
| 11 | 17 |
| 12 | 17 |
| 13 | 17 |
| 14 | 17 |
| 15 | 18 |
| 16 | 18 |
| 17 | 18 |
| 18 | 19 |
| 19 | 19 |
| 20 | 20 |
| 21 | 20 |
| 22 | 20 |
| 23 | 20 |
| 24 | 20 |
| 25 | 20 |
| 26 | 20 |
| 27 | 20 |
| 28 | 21 |
| 29 | 21 |
| 30 | 21 |
| 31 | 21 |
Humidity in January
Most of January feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, January lands in the dry band about 64% of days. It rarely turns muggy — the humid and sticky bands barely register.
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 62 | 62 | 61 | 60 | 61 | 61 | 61 | 61 | 62 | 62 | 63 | 63 | 63 | 64 | 65 | 65 | 65 | 66 | 66 | 66 | 67 | 66 | 67 | 67 | 67 | 67 | 67 | 67 | 67 | 65 | 65 |
| Comfortable (%) | 26 | 26 | 26 | 26 | 25 | 25 | 24 | 24 | 23 | 23 | 22 | 22 | 22 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 20 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 20 | 20 |
| Humid (%) | 11 | 11 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 13 |
| Muggy (%) | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | |
|---|---|---|---|---|
| 1 | 62 | 26 | 11 | 1 |
| 2 | 62 | 26 | 11 | 1 |
| 3 | 61 | 26 | 12 | 1 |
| 4 | 60 | 26 | 12 | 2 |
| 5 | 61 | 25 | 12 | 2 |
| 6 | 61 | 25 | 12 | 2 |
| 7 | 61 | 24 | 13 | 2 |
| 8 | 61 | 24 | 13 | 2 |
| 9 | 62 | 23 | 13 | 2 |
| 10 | 62 | 23 | 13 | 2 |
| 11 | 63 | 22 | 13 | 2 |
| 12 | 63 | 22 | 13 | 2 |
| 13 | 63 | 22 | 13 | 2 |
| 14 | 64 | 21 | 13 | 2 |
| 15 | 65 | 21 | 12 | 2 |
| 16 | 65 | 21 | 12 | 2 |
| 17 | 65 | 21 | 12 | 2 |
| 18 | 66 | 20 | 12 | 2 |
| 19 | 66 | 20 | 12 | 2 |
| 20 | 66 | 20 | 12 | 2 |
| 21 | 67 | 20 | 11 | 2 |
| 22 | 66 | 20 | 12 | 2 |
| 23 | 67 | 19 | 12 | 2 |
| 24 | 67 | 19 | 12 | 2 |
| 25 | 67 | 19 | 12 | 2 |
| 26 | 67 | 19 | 12 | 2 |
| 27 | 67 | 19 | 12 | 2 |
| 28 | 67 | 19 | 12 | 2 |
| 29 | 67 | 19 | 12 | 2 |
| 30 | 65 | 20 | 13 | 2 |
| 31 | 65 | 20 | 13 | 2 |
Wind in January
Winds average 13 km/h in January.
Across January, daily wind ranges from about 13 km/h on the calmest days to 13 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) | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 |
| Feels | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 13 | light breeze |
| 2 | 13 | light breeze |
| 3 | 13 | light breeze |
| 4 | 13 | light breeze |
| 5 | 13 | light breeze |
| 6 | 13 | light breeze |
| 7 | 13 | light breeze |
| 8 | 13 | light breeze |
| 9 | 13 | light breeze |
| 10 | 13 | light breeze |
| 11 | 13 | light breeze |
| 12 | 13 | light breeze |
| 13 | 13 | light breeze |
| 14 | 13 | light breeze |
| 15 | 13 | light breeze |
| 16 | 13 | light breeze |
| 17 | 13 | light breeze |
| 18 | 13 | light breeze |
| 19 | 13 | light breeze |
| 20 | 13 | light breeze |
| 21 | 13 | light breeze |
| 22 | 13 | light breeze |
| 23 | 13 | light breeze |
| 24 | 13 | light breeze |
| 25 | 13 | light breeze |
| 26 | 13 | light breeze |
| 27 | 13 | light breeze |
| 28 | 13 | light breeze |
| 29 | 13 | light breeze |
| 30 | 13 | light breeze |
| 31 | 13 | light breeze |
Sunrise & sunset in January
Daylight runs from about 10 h 42 min at the start of January to 11 hours by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 18 minutes over January. Sunrise moves from 7:08 AM to 7:08 AM, and sunset from 5:47 PM to 6:06 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) | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.8 | 10.8 | 10.8 | 10.8 | 10.8 | 10.8 | 10.8 | 10.8 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 11.0 | 11.0 |
| Sunrise (AM) | 7:08 | 7:08 | 7:08 | 7:09 | 7:09 | 7:09 | 7:09 | 7:10 | 7:10 | 7:10 | 7:10 | 7:10 | 7:10 | 7:10 | 7:10 | 7:10 | 7:10 | 7:10 | 7:10 | 7:10 | 7:10 | 7:10 | 7:10 | 7:10 | 7:10 | 7:10 | 7:09 | 7:09 | 7:09 | 7:09 | 7:08 |
| Sunset (PM) | 5:47 | 5:47 | 5:48 | 5:49 | 5:49 | 5:50 | 5:50 | 5:51 | 5:52 | 5:52 | 5:53 | 5:54 | 5:54 | 5:55 | 5:56 | 5:56 | 5:57 | 5:58 | 5:58 | 5:59 | 6:00 | 6:00 | 6:01 | 6:02 | 6:02 | 6:03 | 6:04 | 6:04 | 6:05 | 6:06 | 6:06 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 10.7 | 7:08 | 5:47 |
| 2 | 10.7 | 7:08 | 5:47 |
| 3 | 10.7 | 7:08 | 5:48 |
| 4 | 10.7 | 7:09 | 5:49 |
| 5 | 10.7 | 7:09 | 5:49 |
| 6 | 10.7 | 7:09 | 5:50 |
| 7 | 10.7 | 7:09 | 5:50 |
| 8 | 10.7 | 7:10 | 5:51 |
| 9 | 10.7 | 7:10 | 5:52 |
| 10 | 10.7 | 7:10 | 5:52 |
| 11 | 10.7 | 7:10 | 5:53 |
| 12 | 10.7 | 7:10 | 5:54 |
| 13 | 10.7 | 7:10 | 5:54 |
| 14 | 10.7 | 7:10 | 5:55 |
| 15 | 10.8 | 7:10 | 5:56 |
| 16 | 10.8 | 7:10 | 5:56 |
| 17 | 10.8 | 7:10 | 5:57 |
| 18 | 10.8 | 7:10 | 5:58 |
| 19 | 10.8 | 7:10 | 5:58 |
| 20 | 10.8 | 7:10 | 5:59 |
| 21 | 10.8 | 7:10 | 6:00 |
| 22 | 10.8 | 7:10 | 6:00 |
| 23 | 10.9 | 7:10 | 6:01 |
| 24 | 10.9 | 7:10 | 6:02 |
| 25 | 10.9 | 7:10 | 6:02 |
| 26 | 10.9 | 7:10 | 6:03 |
| 27 | 10.9 | 7:09 | 6:04 |
| 28 | 10.9 | 7:09 | 6:04 |
| 29 | 10.9 | 7:09 | 6:05 |
| 30 | 11.0 | 7:09 | 6:06 |
| 31 | 11.0 | 7:08 | 6:06 |
Solar energy in January
Average shortwave solar energy reaching the ground each day in January, about 3.39 kWh/m².
For context, solar energy here swings from a low near 3.38 kWh/m² to a high of 5.5 kWh/m² in July across the year — January's 3.39 kWh/m² sits near the bottom.
| 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) | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 | 3.5 | 3.5 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 3.4 | Moderate |
| 2 | 3.4 | Moderate |
| 3 | 3.4 | Moderate |
| 4 | 3.4 | Moderate |
| 5 | 3.4 | Moderate |
| 6 | 3.4 | Moderate |
| 7 | 3.4 | Moderate |
| 8 | 3.4 | Moderate |
| 9 | 3.4 | Moderate |
| 10 | 3.4 | Moderate |
| 11 | 3.4 | Moderate |
| 12 | 3.4 | Moderate |
| 13 | 3.4 | Moderate |
| 14 | 3.4 | Moderate |
| 15 | 3.4 | Moderate |
| 16 | 3.4 | Moderate |
| 17 | 3.4 | Moderate |
| 18 | 3.4 | Moderate |
| 19 | 3.4 | Moderate |
| 20 | 3.4 | Moderate |
| 21 | 3.4 | Moderate |
| 22 | 3.4 | Moderate |
| 23 | 3.4 | Moderate |
| 24 | 3.4 | Moderate |
| 25 | 3.4 | Moderate |
| 26 | 3.4 | Moderate |
| 27 | 3.4 | Moderate |
| 28 | 3.4 | Moderate |
| 29 | 3.4 | Moderate |
| 30 | 3.5 | Moderate |
| 31 | 3.5 | Moderate |
Hazard calendar for Tuen Mun San Hui
In January, Tuen Mun San Hui sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Tuen Mun San Hui sits in the Pacific typhoon belt; the season peaks July–October.
Tuen Mun San Hui's monsoon runs May–September, when most of the year's rain falls.
Is January a good time to visit Tuen Mun San Hui?
Our two travel scores rate January for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
January is a reasonable time to visit Tuen Mun San Hui for sightseeing.
What to pack for Tuen Mun San Hui in January
From January's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In January, Tuen Mun San Hui sees daytime highs around 19°C and nights near 13°C. Little to plan around — just the basics. About 6 days see rain.
Sea temperature near Tuen Mun San Hui in January
The nearest coast averages about 19°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in August at about 29°C and coldest in February near 19°C.
It's comfortable for a long swim from Mar 18 to Dec 18 — about 9.1 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 19 | 19 | 20 | 23 | 26 | 28 | 29 | 29 | 28 | 27 | 24 | 20 |
| Comfort | Cool | Cool | Cool | Refreshing | Warm | Warm | Tropical | Tropical | Tropical | Warm | Refreshing | Refreshing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 19 | Cool |
| Feb | 19 | Cool |
| Mar | 20 | Cool |
| 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 | 20 | Refreshing |
UV index in Tuen Mun San Hui in January
Clear-sky midday UV in January peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Tuen Mun San Hui peaks around July 13 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 11 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 Tuen Mun San Hui in January
Average fine-particle pollution (PM2.5) through the year — so you can see where January falls, not just the annual average.
Air quality in Tuen Mun San Hui 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 Tuen Mun San Hui?
Tuen Mun San Hui sits at 22.4°N, 114.0°E, 18 m above sea level, in Hong Kong. The nearest listed city is Tuen Mun, 1.0 km away.
Topography around Tuen Mun San Hui
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Tuen Mun San Hui.
Within 3 km, the terrain around Tuen Mun San Hui has significant variations in elevation — a maximum elevation change of 554 m around an average of 126 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 948 m; within 80 km, large variations in elevation — a maximum elevation change of 1,020 m.
The land around Tuen Mun San Hui is covered by trees (50%) and artificial surfaces (26%) within 3 km, water (46%) and trees (31%) within 16 km, and water (55%) and trees (23%) 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 Tuen Mun San Hui (22.3988°, 113.976°, elevation 18 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).