Choi Wan weather in March

In March, Choi Wan sees average daytime highs of 21°C and overnight lows near 18°C, with 69 mm of rain across 10.4 wet days and about 11.8 hours of daylight. It is the 9th-warmest and 8th-wettest month of the year here.

Highs climb over the month, from about 20°C in the first days to 22°C by the end. The sky is clear or mostly clear about 18% of the time in March, and the air most often feels muggy.

Daylight stretches from about 11 h 30 min at the start of March to 12 h 12 min by month's end. Set against the rest of the year, March is Choi Wan's 8th-clearest and 6th-windiest month. For the whole year in context, see Choi Wan's year-round climate.

Daytime high
21°
9th warmest
Overnight low
18°
4th coldest
Rainfall
69 mm
10.4 wet days
Daylight
11 h 48 min
6:38 AM – 6:28 PM
Cloud cover
69%
8th clearest
Wind
18 km/h
6th windiest
Solar energy
4.21 kWh/m²
Travel score
6.3
out of 10

Temperature in March

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 20°C in the first days to 22°C by the end.

A typical March day in Choi Wan reaches about 21°C in the afternoon and slips back to 18°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 24°C. Set against its neighbours, March runs about 2°C warmer than February and about 3°C cooler than April.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12017
22017
32017
42017
52017
62017
72017
82117
92118
102118
112118
122118
132118
142118
152118
162118
172118
182119
192219
202219
212219
222219
232219
242219
252219
262219
272219
282220
292220
302320
312320

How March really feels in Choi Wan

Once humidity and wind are folded in, March 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

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

Choi Wan weather by month

How March compares with the rest of the year at a glance. March is the 9th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan18° / 15°29510.86.7
Feb19° / 16°448.111.26.2
Mar21° / 18°6910.411.86.3
Apr24° / 22°11612.612.56.2
May27° / 25°21017.313.15.2
Jun29° / 27°30921.513.33.8
Jul30° / 27°24820.413.23.8
Aug30° / 27°30721.912.83.7
Sep29° / 26°21416.312.14.7
Oct27° / 24°756.611.57.3
Nov24° / 20°395.110.97.9
Dec20° / 16°344.510.77.2

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 16% of March, with mostly cloudy or overcast conditions the remaining 65%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14060
23961
33961
43961
53961
63862
73862
83763
93763
103664
113565
123367
133367
143268
153169
163268
173169
183169
193268
203268
213169
223268
233367
243367
253367
263466
273565
283565
293565
303466
313466

Chance of precipitation in March

Any precipitation

Choi Wan gets around 69 mm of rain over 10.4 wet days in March. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 33% and peaks near 38% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
131
231
331
431
531
632
732
832
932
1033
1133
1233
1333
1433
1533
1633
1733
1833
1933
2033
2133
2233
2334
2434
2535
2636
2736
2837
2937
3038
3138

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, March lands in the muggy band about 30% of days. Sticky, muggy-or-worse air turns up on roughly 39% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1292128203
2282128203
3282128213
4272128213
5262129223
6252129233
7242129233
8222130243
9212130253
10202130264
11182130274
12172030295
13162029305
14152029316
15141929316
16131929327
17131829338
18121728339
191217283410
201216283411
211115273512
221115273512
231114273513
241113273514
251112273515
261012273616
271011273617
281011263617
29910263618
30910263619
3189263621

Wind in March

Winds average 18 km/h in March.

Across March, daily wind ranges from about 17 km/h on the calmest days to 18 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
118light breeze
218light breeze
318light breeze
418light breeze
518light breeze
618light breeze
718light breeze
818light breeze
918light breeze
1018light breeze
1118light breeze
1218light breeze
1318light breeze
1418light breeze
1518light breeze
1618light breeze
1718light breeze
1818light breeze
1918light breeze
2017light breeze
2117light breeze
2217light breeze
2317light breeze
2417light breeze
2517light breeze
2617light breeze
2717light breeze
2817light breeze
2917light breeze
3017light breeze
3117light breeze

Sunrise & sunset in March

DaylightNight

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

Days grow by about 42 minutes over March. Sunrise moves from 6:51 AM to 6:23 AM, and sunset from 6:22 PM to 6:33 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.56:516:22
211.56:506:22
311.66:496:23
411.66:486:23
511.66:486:24
611.66:476:24
711.66:466:24
811.76:456:25
911.76:446:25
1011.76:436:26
1111.76:426:26
1211.86:416:26
1311.86:406:27
1411.86:396:27
1511.86:396:28
1611.86:386:28
1711.96:376:28
1811.96:366:29
1911.96:356:29
2011.96:346:29
2112.06:336:30
2212.06:326:30
2312.06:316:31
2412.06:306:31
2512.06:296:31
2612.16:286:32
2712.16:276:32
2812.16:266:32
2912.16:256:33
3012.16:246:33
3112.26:236:33

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 4.21 kWh/m².

For context, solar energy here swings from a low near 3.38 kWh/m² to a high of 5.66 kWh/m² in July across the year — March's 4.21 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
13.9Moderate
23.9Moderate
33.9Moderate
43.9Moderate
54.0Moderate
64.0Moderate
74.0Bright
84.0Bright
94.0Bright
104.0Bright
114.1Bright
124.1Bright
134.1Bright
144.1Bright
154.1Bright
164.2Bright
174.2Bright
184.2Bright
194.2Bright
204.3Bright
214.3Bright
224.3Bright
234.3Bright
244.4Bright
254.4Bright
264.4Bright
274.4Bright
284.5Bright
294.5Bright
304.5Bright
314.5Bright
Planning a trip in March

Hazard calendar for Choi Wan

In seasonPeak

In March, Choi Wan sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.

Choi Wan sits in the Pacific typhoon belt; the season peaks July–October.

Choi Wan'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 March a good time to visit Choi Wan?

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

6.3
Sightseeing
5th-best month of the year
4.0
Beach & pool
9th-best month of the year

March is a reasonable time to visit Choi Wan for sightseeing.

What to pack for Choi Wan in March

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

In March, Choi Wan sees daytime highs around 21°C and nights near 18°C. Worth packing: rain gear. About 10 days see rain.

rain gear

Sea temperature near Choi Wan in March

The nearest coast averages about 21°C in March — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 17 km away) 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 Choi Wan in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Choi Wan 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 Choi Wan in March

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Choi Wan 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 Choi Wan?

Choi Wan sits at 22.3°N, 114.2°E, 66 m above sea level, in Hong Kong. The nearest listed city is Choi Wan Estate (I & II), 0.0 km away.

Topography around Choi Wan

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

Within 3 km, the terrain around Choi Wan has significant variations in elevation — a maximum elevation change of 587 m around an average of 137 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 984 m.

The land around Choi Wan is covered by trees (48%) and artificial surfaces (39%) within 3 km, trees (43%) and water (43%) within 16 km, and water (61%) and trees (24%) within 80 km.

3 km
587 m
16 km
941 m
80 km
984 m
treesgrasslandcroplandartificial surfacesbare terrainwater
March weather nearby: Choi Wan Estate (I & II) 0.0 km · Choi Hung Estate 1.0 km · Tak Long Estate 1.0 km · San Po Kong 2.0 km · Kai Tak 2.0 km · Lower Wong Tai Sin Estate (I & II) 2.0 km · Tung Tau Estate 2.0 km · Kowloon City 2.0 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 Choi Wan (22.3339°, 114.2137°, elevation 66 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).