San Tung Chung Hang in Fall
In fall (September, October and November), San Tung Chung Hang sees average daytime highs around 27°C and overnight lows near 23°C, with 307 mm of rain over about 28 wet days across the season. It is the 2nd-warmest season and the 3rd-wettest season.
Over the season highs ease from about 30°C in early September to 23°C by late November. The sky is clear or mostly clear about 46% of the time across fall, and the air most often feels oppressive.
Fall is San Tung Chung Hang's 2nd-best season to visit on our travel score. For the whole year in context, see San Tung Chung Hang's year-round climate.
- Avg daytime high
- 27°C
- 2nd-warmest season
- Avg overnight low
- 23°C
- Rainfall
- 307 mm
- 28 wet days
- Avg wind
- 15 km/h
- Travel score
- 6.4
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in San Tung Chung Hang in Fall
Over the season highs ease from about 30°C in early September to 23°C by late November.
A typical fall day in San Tung Chung Hang reaches about 27°C and drops to 23°C overnight. The warmest of the three months is September, the coolest November.
How fall really feels in San Tung Chung Hang
Once humidity and wind are folded in, fall brings about 32 days that feel above 32°C and 0 that feel at or below 0°C.
The story in fall is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
San Tung Chung Hang weather by month
How the three fall months (September, October and November) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 19° / 14° | 24 | 4.1 | 10.8 | 7.0 |
| Feb | 20° / 15° | 34 | 6.4 | 11.2 | 6.5 |
| Mar | 22° / 18° | 58 | 9.4 | 11.8 | 6.5 |
| Apr | 25° / 21° | 107 | 12.7 | 12.5 | 6.1 |
| May | 28° / 25° | 209 | 17.9 | 13.1 | 4.7 |
| Jun | 30° / 27° | 302 | 22.5 | 13.3 | 3.4 |
| Jul | 31° / 27° | 247 | 21.2 | 13.2 | 3.4 |
| Aug | 31° / 27° | 312 | 22.7 | 12.8 | 3.3 |
| Sep | 30° / 26° | 204 | 16.6 | 12.1 | 4.3 |
| Oct | 28° / 24° | 70 | 6.7 | 11.5 | 6.9 |
| Nov | 24° / 20° | 34 | 4.7 | 10.9 | 8.0 |
| Dec | 20° / 16° | 29 | 3.8 | 10.7 | 7.5 |
Cloud cover in Fall
The sky is clear or mostly clear about 46% of the time across fall.
Chance of precipitation in Fall
San Tung Chung Hang gets around 307 mm of rain over 28 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 15 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 30 min in early September to 10 h 42 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 4.6 kWh/m².
Hazard calendar for San Tung Chung Hang
In fall, San Tung Chung Hang overlaps its pacific typhoon and monsoon season. The full year is below, with each hazard's peak months called out.
San Tung Chung Hang sits in the Pacific typhoon belt; the season peaks July–October.
San Tung Chung Hang's monsoon runs May–September, when most of the year's rain falls.
Is fall a good time to visit San Tung Chung Hang?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is a reasonable time to visit San Tung Chung Hang for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for San Tung Chung Hang in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, San Tung Chung Hang sees daytime highs around 27°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 28 days see rain.
Sea temperature near San Tung Chung Hang in Fall
The nearest coast averages about 26°C across fall — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 13 km away) 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 San Tung Chung Hang in Fall
Clear-sky midday UV across fall averages around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in San Tung Chung Hang 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 San Tung Chung Hang in Fall
Average fine-particle pollution (PM2.5) through the year — so you can see where fall falls, not just the annual average.
Air quality in San Tung Chung Hang 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 San Tung Chung Hang?
San Tung Chung Hang sits at 22.3°N, 113.9°E, 33 m above sea level, in Hong Kong. The nearest listed city is Tung Chung, 1.0 km away.
Topography around San Tung Chung Hang
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San Tung Chung Hang.
Within 3 km, the terrain around San Tung Chung Hang has large variations in elevation — a maximum elevation change of 855 m around an average of 208 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 913 m; within 80 km, large variations in elevation — a maximum elevation change of 1,020 m.
The land around San Tung Chung Hang is covered by trees (70%) within 3 km, water (69%) and trees (23%) within 16 km, and water (61%) and trees (21%) 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 San Tung Chung Hang (22.2787°, 113.9431°, elevation 33 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.