Kam Tin weather in September

In September, Kam Tin sees average daytime highs of 30°C and overnight lows near 26°C, with 199 mm of rain across 16.6 wet days and about 12.1 hours of daylight. It is the 3rd-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 32% of the time in September, and the air most often feels miserable.

Daylight stretches from about 12 h 30 min at the start of September to 11 h 48 min by month's end. Set against the rest of the year, September is Kam Tin's 5th-clearest and 11th-windiest month. For the whole year in context, see Kam Tin's year-round climate.

Daytime high
30°
3rd warmest
Overnight low
26°
9th coldest
Rainfall
199 mm
16.6 wet days
Daylight
12 h 06 min
6:14 AM – 6:22 PM
Cloud cover
61%
5th clearest
Wind
10 km/h
11th windiest
Solar energy
5 kWh/m²
Travel score
4.1
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical September day in Kam Tin reaches about 30°C in the afternoon and slips back to 26°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 32°C. Set against its neighbours, September runs on par with August and about 2°C warmer than October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13126
23126
33126
43126
53126
63126
73126
83126
93126
103126
113126
123126
133126
143026
153026
163026
173025
183025
193025
203025
213025
223025
233025
243025
253025
263025
273025
283025
293025
303025

How September really feels in Kam Tin

Once humidity and wind are folded in, September averages 30 days 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
30
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Kam Tin weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan19° / 13°325.510.86.9
Feb20° / 15°437.811.26.4
Mar22° / 17°7511.411.86.3
Apr26° / 21°12513.812.55.8
May29° / 24°22919.113.14.4
Jun30° / 26°31922.913.33.2
Jul31° / 27°24322.113.23.1
Aug31° / 27°31323.612.83.1
Sep30° / 26°19916.612.14.1
Oct28° / 23°616.711.56.7
Nov25° / 19°344.910.97.9
Dec21° / 15°314.210.77.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 18% of September, with mostly cloudy or overcast conditions the remaining 50%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13565
23565
33664
43664
53862
63961
74060
84159
94456
104555
114753
124852
134951
145149
155248
165347
175446
185545
195545
205545
215644
225743
235842
245842
255842
266040
276139
286139
296238
306238

Chance of precipitation in September

Any precipitation

Kam Tin gets around 199 mm of rain over 16.6 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 55% and peaks near 71% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
171
270
370
469
568
668
767
866
965
1064
1162
1261
1359
1458
1556
1655
1753
1852
1950
2049
2147
2246
2345
2444
2542
2641
2740
2839
2938
3037

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the miserable band about 56% of days. Sticky, muggy-or-worse air turns up on roughly 97% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
10001990
200011188
300011287
400021385
500021583
600121780
700131878
800132076
900142273
1000142372
1100252568
1200252766
1300262864
1400373060
1500383158
1600393256
17003103453
18003113650
19004123747
20004133944
21004154041
22004164238
23004174336
24004184533
25014194631
26014204729
27014214726
28015214824
29115224823
30126234821

Wind in September

Winds average 10 km/h in September.

Across September, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 30 min at the start of September to 11 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 42 minutes over September. Sunrise moves from 6:10 AM to 6:19 AM, and sunset from 6:37 PM to 6:08 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.56:106:37
212.46:106:36
312.46:106:35
412.46:116:34
512.46:116:33
612.36:116:32
712.36:126:31
812.36:126:30
912.36:126:29
1012.36:136:28
1112.26:136:27
1212.26:136:26
1312.26:136:25
1412.26:146:24
1512.16:146:23
1612.16:146:22
1712.16:156:21
1812.16:156:20
1912.16:156:19
2012.06:156:18
2112.06:166:17
2212.06:166:16
2312.06:166:15
2412.06:176:14
2511.96:176:13
2611.96:176:12
2711.96:186:11
2811.96:186:10
2911.86:186:09
3011.86:196:08

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5 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 — September's 5 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
45.0Bright
55.0Bright
65.0Bright
75.0Bright
85.0Bright
95.0Bright
105.1Bright
115.1Bright
125.1Bright
135.1Bright
145.1Bright
155.1Bright
165.1Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
225.0Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
304.9Bright
Planning a trip in September

Hazard calendar for Kam Tin

In seasonPeak

In September, Kam Tin sits inside its pacific typhoon and monsoon season. The full year is below, with each hazard's peak months called out.

Kam Tin sits in the Pacific typhoon belt; the season peaks July–October.

Kam Tin'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 September a good time to visit Kam Tin?

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

4.1
Sightseeing
9th-best month of the year
5.8
Beach & pool
3rd-best month of the year

September is a reasonable time to visit Kam Tin for sightseeing.

What to pack for Kam Tin in September

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

In September, Kam Tin sees daytime highs around 30°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 17 days see rain.

light clothesrain gearsun protection

Sea temperature near Kam Tin in September

The nearest coast averages about 28°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 20 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.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan19Cool
Feb19Cool
Mar20Cool
Apr23Refreshing
May26Warm
Jun28Warm
Jul29Tropical
Aug29Tropical
Sep28Tropical
Oct27Warm
Nov24Refreshing
Dec20Refreshing

UV index in Kam Tin in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September 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 Kam Tin 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highExtremeVery highHighJul 13UV 12Jan 11UV 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 Kam Tin in September

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Kam Tin 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 Kam Tin?

Kam Tin sits at 22.4°N, 114.1°E, 3 m above sea level, in Hong Kong. The nearest listed city is Yuen Long San Hui, 3.0 km away.

Pat HeungYuen LongYeung Uk TsuenNew Territories

Topography around Kam Tin

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

Within 3 km, the terrain around Kam Tin has significant variations in elevation — a maximum elevation change of 470 m around an average of 53 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 Kam Tin is covered by trees (47%) and artificial surfaces (32%) within 3 km, trees (47%), water (24%) and artificial surfaces (23%) within 16 km, and water (54%) and trees (25%) within 80 km.

3 km
470 m
16 km
948 m
80 km
1,020 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
September weather nearby: Yuen Long San Hui 3.0 km · Yuen Long Kau Hui 3.0 km · Shap Pat Heung 3.0 km · Fairview Park 3.0 km · Pat Heung 3.0 km · Yuen Long 4.0 km · Yeung Uk Tsuen 5.0 km · New Territories 6.0 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 Kam Tin (22.4412°, 114.0602°, elevation 3 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).