Yuen Long San Hui weather in January

In January, Yuen Long 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 36 min at the start of January to 11 hours by month's end. Set against the rest of the year, January is Yuen Long San Hui's 4th-clearest and 3rd-windiest month. For the whole year in context, see Yuen Long 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

Yuen Long San Hui is Town in Northwest New Territories Hong Kong.

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

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 19°C through the month.

A typical January day in Yuen Long 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.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11914
21914
31914
41914
51913
61913
71913
81913
91913
101913
111913
121913
131913
141913
151913
161913
171913
181913
191913
201913
211913
221913
231913
241913
251913
261913
271913
281913
291913
301913
311913

How January really feels in Yuen Long 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.

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

January sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Yuen Long 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.

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 January

ClearMostly clearPartly cloudyMostly cloudyOvercast

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.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16337
26238
36238
46238
56139
66040
76040
85941
95941
105842
115842
125743
135743
145545
155545
165446
175446
185347
195347
205248
215248
225248
235248
245248
255149
265149
275050
285050
295050
305050
314951

Chance of precipitation in January

Any precipitation

Yuen Long 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.

0%10%20%30%151015202531
Rain chance (%)
114
214
314
414
515
615
715
816
916
1016
1117
1217
1317
1417
1518
1618
1718
1819
1919
2020
2120
2220
2320
2420
2520
2620
2720
2821
2921
3021
3121

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
16226111
26226111
36126121
46026122
56125122
66125122
76124132
86124132
96223132
106223132
116322132
126322132
136322132
146421132
156521122
166521122
176521122
186620122
196620122
206620122
216720112
226620122
236719122
246719122
256719122
266719122
276719122
286719122
296719122
306520132
316520132

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.

051015151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 10 h 36 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 24 minutes over January. Sunrise moves from 7:08 AM to 7:08 AM, and sunset from 5:46 PM to 6:06 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.67:085:46
210.77:085:47
310.77:085:48
410.77:085:48
510.77:095:49
610.77:095:50
710.77:095:50
810.77:095:51
910.77:105:51
1010.77:105:52
1110.77:105:53
1210.77:105:53
1310.77:105:54
1410.77:105:55
1510.87:105:55
1610.87:105:56
1710.87:105:57
1810.87:105:57
1910.87:105:58
2010.87:105:59
2110.87:105:59
2210.87:106:00
2310.87:106:01
2410.97:106:02
2510.97:106:02
2610.97:096:03
2710.97:096:04
2810.97:096:04
2910.97:096:05
3011.07:086:06
3111.07:086:06

Solar energy in January

Daily solar energy (kWh/m²)

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.

01234151015202531
Solar energy (kWh/m²)Level
13.4Moderate
23.4Moderate
33.4Moderate
43.4Moderate
53.4Moderate
63.4Moderate
73.4Moderate
83.4Moderate
93.4Moderate
103.4Moderate
113.4Moderate
123.4Moderate
133.4Moderate
143.4Moderate
153.4Moderate
163.4Moderate
173.4Moderate
183.4Moderate
193.4Moderate
203.4Moderate
213.4Moderate
223.4Moderate
233.4Moderate
243.4Moderate
253.4Moderate
263.4Moderate
273.4Moderate
283.4Moderate
293.4Moderate
303.5Moderate
313.5Moderate
Planning a trip in January

Hazard calendar for Yuen Long San Hui

In seasonPeak

In January, Yuen Long San Hui sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.

Yuen Long San Hui sits in the Pacific typhoon belt; the season peaks July–October.

Yuen Long San Hui'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 January a good time to visit Yuen Long San Hui?

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

6.9
Sightseeing
3rd-best month of the year
2.9
Beach & pool
12th-best month of the year

January is a reasonable time to visit Yuen Long San Hui for sightseeing.

What to pack for Yuen Long San Hui in January

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

In January, Yuen Long 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 Yuen Long 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 at the nearest coast (about 18 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 Yuen Long San Hui in January

LowModerateHighVery highExtreme

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 Yuen Long 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.

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 Yuen Long San Hui in January

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Yuen Long 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).

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 Yuen Long San Hui?

Yuen Long San Hui sits at 22.4°N, 114.0°E, 8 m above sea level, in Hong Kong. The nearest listed city is Shap Pat Heung, 1.0 km away.

Fairview ParkTin Shui Wai

Topography around Yuen Long San Hui

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Yuen Long San Hui.

Within 3 km, the terrain around Yuen Long San Hui has significant variations in elevation — a maximum elevation change of 278 m around an average of 42 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 Yuen Long San Hui is covered by trees (47%) and artificial surfaces (41%) within 3 km, trees (42%), water (30%) and artificial surfaces (22%) within 16 km, and water (54%) and trees (24%) within 80 km.

3 km
278 m
16 km
948 m
80 km
1,020 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
January weather nearby: Shap Pat Heung 1.0 km · Yuen Long 2.0 km · Yuen Long Kau Hui 2.0 km · Yeung Uk Tsuen 3.0 km · Kam Tin 3.0 km · Ping Shan 3.0 km · Fairview Park 4.0 km · Tin Shui Wai 4.0 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 Yuen Long San Hui (22.4333°, 114.0333°, elevation 8 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).