Sai Kung weather in October

In October, Sai Kung sees average daytime highs of 27°C and overnight lows near 23°C, with 64 mm of rain across 6.9 wet days and about 11.5 hours of daylight. It is the 6th-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about 29°C in the first days to 26°C by the end. The sky is clear or mostly clear about 51% of the time in October, and the air most often feels oppressive.

Daylight stretches from about 11 h 48 min at the start of October to 11 h 12 min by month's end. Set against the rest of the year, October is Sai Kung's 2nd-clearest and 6th-windiest month. For the whole year in context, see Sai Kung's year-round climate.

Daytime high
27°
6th warmest
Overnight low
23°
7th coldest
Rainfall
64 mm
6.9 wet days
Daylight
11 h 30 min
6:24 AM – 5:52 PM
Cloud cover
44%
2nd clearest
Wind
12 km/h
6th windiest
Solar energy
4.73 kWh/m²
Travel score
7.0
out of 10

Sai Kung is neighbourhood in New Territories, Hong Kong, China.

Founded
1900

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 29°C in the first days to 26°C by the end.

A typical October day in Sai Kung reaches about 27°C in the afternoon and slips back to 23°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 30°C. Set against its neighbours, October runs about 3°C cooler than September and about 4°C warmer than November.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12925
22925
32925
42925
52924
62924
72824
82824
92824
102824
112824
122824
132824
142823
152823
162723
172723
182723
192723
202723
212723
222722
232722
242722
252622
262622
272622
282622
292621
302621
312621

How October really feels in Sai Kung

Once humidity and wind are folded in, October averages 1 day that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
1
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in October is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Sai Kung weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan18° / 13°24410.86.8
Feb19° / 14°346.311.26.4
Mar21° / 17°6810.111.86.3
Apr25° / 21°12314.112.55.9
May28° / 24°2292013.14.5
Jun30° / 26°31423.813.33.2
Jul31° / 27°24322.913.23.1
Aug31° / 27°30823.912.83.1
Sep30° / 26°2031712.14.2
Oct27° / 23°646.911.57.0
Nov24° / 19°364.910.98.0
Dec20° / 15°293.910.77.3

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 51% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 16% of October, with mostly cloudy or overcast conditions the remaining 33%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16436
26535
36535
46535
56535
66535
76535
86535
96436
106436
116436
126337
136337
146436
156436
166535
176733
186733
196832
206931
217030
227129
237129
247129
257228
267228
277327
287327
297228
307228
317228

Chance of precipitation in October

Any precipitation

Sai Kung gets around 64 mm of rain over 6.9 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 22% and peaks near 36% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
136
235
334
433
532
632
731
830
930
1029
1128
1227
1325
1424
1523
1622
1721
1820
1919
2018
2117
2215
2314
2414
2513
2612
2712
2812
2912
3012
3112

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

Most of October feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, October lands in the oppressive band about 33% of days. Sticky, muggy-or-worse air turns up on roughly 74% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1024244624
2025254522
3025264521
4026274420
5026284419
6037294417
7038304316
8038314315
9039314214
101410324112
111411334011
121413333910
13141433389
14141534378
15251634368
16251734347
17251934337
18352034326
19462034306
20462135295
21572235275
22672335254
23782335244
24782335224
25892435213
269102434203
2710112434193
2811122334183
2911122333182
3012132333182
3112142332182

Wind in October

Winds average 12 km/h in October.

Across October, daily wind ranges from about 12 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112calm
212calm
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512light breeze
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze
3112light breeze

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 48 min at the start of October to 11 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 36 minutes over October. Sunrise moves from 6:18 AM to 6:31 AM, and sunset from 6:06 PM to 5:42 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.86:186:06
211.86:186:05
311.86:196:04
411.76:196:03
511.76:196:02
611.76:206:01
711.76:206:00
811.66:215:59
911.66:215:58
1011.66:215:57
1111.66:225:56
1211.66:225:56
1311.56:235:55
1411.56:235:54
1511.56:235:53
1611.56:245:52
1711.56:245:51
1811.46:255:51
1911.46:255:50
2011.46:265:49
2111.46:265:48
2211.36:275:48
2311.36:275:47
2411.36:285:46
2511.36:285:45
2611.36:295:45
2711.36:295:44
2811.26:305:44
2911.26:305:43
3011.26:315:42
3111.26:315:42

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 4.73 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 — October's 4.73 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.9Bright
44.8Bright
54.8Bright
64.8Bright
74.8Bright
84.8Bright
94.8Bright
104.8Bright
114.8Bright
124.7Bright
134.7Bright
144.7Bright
154.7Bright
164.7Bright
174.7Bright
184.7Bright
194.7Bright
204.7Bright
214.7Bright
224.7Bright
234.7Bright
244.6Bright
254.6Bright
264.6Bright
274.6Bright
284.5Bright
294.5Bright
304.5Bright
314.5Bright
Planning a trip in October

Hazard calendar for Sai Kung

In seasonPeak

In October, Sai Kung sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.

Sai Kung sits in the Pacific typhoon belt; the season peaks July–October.

Sai Kung's monsoon runs May–September, when most of the year's rain falls.

Pacific typhoon
Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is October a good time to visit Sai Kung?

Our two travel scores rate October for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

7.0
Sightseeing
3rd-best month of the year
7.4
Beach & pool
1st-best month of the year

October is one of the better times to visit Sai Kung for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Sai Kung in October

From October's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In October, Sai Kung sees daytime highs around 27°C and nights near 23°C. Pack light clothes. Worth having: sun protection. About 7 days see rain.

light clothessun protection

Sea temperature near Sai Kung in October

The nearest coast averages about 27°C in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore 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.

20°25°30°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan20Cool
Feb20Cool
Mar21Refreshing
Apr23Refreshing
May26Warm
Jun28Warm
Jul29Tropical
Aug29Tropical
Sep28Tropical
Oct27Warm
Nov24Refreshing
Dec21Refreshing

UV index in Sai Kung in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks 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 Sai Kung 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highExtremeVery highHighJul 13UV 12Jan 10UV 6
UV index (midday)Level
Jan6High
Feb8Very high
Mar9Very high
Apr9Very high
May10Very high
Jun12Extreme
Jul12Extreme
Aug11Extreme
Sep10Very high
Oct8Very high
Nov7High
Dec6High

Air quality in Sai Kung in October

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where October falls, not just the annual average.

Air quality in Sai Kung 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).

0306090120150180210JanFebMarAprMayJunJulAugSepOctNovDecVery unhealthyUnhealthyVery unhealthyJan 21181 µg/m³Jul 1674 µg/m³
PM2.5 (µg/m³)Level
Jan183Very unhealthy
Feb175Very unhealthy
Mar165Very unhealthy
Apr149Unhealthy
May115Unhealthy
Jun83Unhealthy
Jul73Unhealthy
Aug85Unhealthy
Sep119Unhealthy
Oct127Unhealthy
Nov157Very unhealthy
Dec156Very unhealthy
Location & terrain

Where is Sai Kung?

Sai Kung sits at 22.4°N, 114.3°E, 54 m above sea level, in Hong Kong. The nearest listed city is Ma On Shan, 4.0 km away.

Ma On ShanTai Shui HangKam YingLee OnSiu Lek YuenWu Kai ShaTseung Kwan OCity One

Topography around Sai Kung

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Sai Kung.

Within 3 km, the terrain around Sai Kung has large variations in elevation — a maximum elevation change of 629 m around an average of 126 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 1,012 m.

The land around Sai Kung is covered by trees (65%) and water (27%) within 3 km, trees (47%) and water (40%) within 16 km, and water (59%) and trees (26%) within 80 km.

3 km
629 m
16 km
941 m
80 km
1,012 m
treesgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Ma On Shan 4.0 km · Tai Shui Hang 5.0 km · Kam Ying 5.0 km · Lee On 5.0 km · Siu Lek Yuen 6.0 km · Wu Kai Sha 6.0 km · Tseung Kwan O 6.0 km · City One 7.0 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
other or none 54%Buddhist or Taoist 28%Protestant 7%Roman Catholic 5%

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 Sai Kung (22.3833°, 114.2667°, elevation 54 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).