Guangzhou weather in August

In August, Guangzhou sees average daytime highs of 33°C and overnight lows near 27°C, with 265 mm of rain across 22.1 wet days and about 12.8 hours of daylight. It is the 2nd-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 33°C through the month. The sky is clear or mostly clear about 17% of the time in August, and the air most often feels miserable.

Daylight stretches from about 13 h 06 min at the start of August to 12 h 30 min by month's end. Set against the rest of the year, August is Guangzhou's 7th-clearest and 12th-windiest month. For the whole year in context, see Guangzhou's year-round climate.

Daytime high
33°
2nd warmest
Overnight low
27°
11th coldest
Rainfall
265 mm
22.1 wet days
Daylight
12 h 48 min
6:07 AM – 6:55 PM
Cloud cover
73%
7th clearest
Wind
9 km/h
12th windiest
Solar energy
4.78 kWh/m²
Travel score
2.5
out of 10

Guangzhou is capital city of Guangdong Province, China.

Air quality
Very high
PM2.5 36.4 µg/m³ · 2018
Density
2,221/km²
people per km²
Founded
~214 BCE

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 33°C through the month.

A typical August day in Guangzhou reaches about 33°C in the afternoon and slips back to 27°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 35°C. Set against its neighbours, August runs on par with July and about 1°C warmer than September.

25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13327
23327
33327
43327
53327
63327
73327
83327
93327
103327
113327
123327
133327
143327
153327
163327
173327
183327
193327
203327
213327
223327
233327
243327
253326
263326
273326
283326
293326
303326
313326

How August really feels in Guangzhou

Once humidity and wind are folded in, August averages 31 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
31
31 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

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

Guangzhou weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan19° / 12°416.410.76.6
Feb20° / 13°558.911.26.1
Mar23° / 17°11714.311.85.8
Apr27° / 21°19716.512.55.1
May30° / 24°2902113.13.5
Jun32° / 26°33622.713.42.6
Jul33° / 27°22921.813.32.4
Aug33° / 27°26522.112.82.5
Sep32° / 25°17715.812.13.6
Oct29° / 22°586.411.56.1
Nov25° / 18°355.310.97.7
Dec21° / 13°374.710.67.4

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 17% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 13% of August, with mostly cloudy or overcast conditions the remaining 70%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13169
23169
33070
43070
53070
62872
72773
82674
92674
102575
112476
122674
132674
142674
152674
162773
172872
182971
193070
203070
213367
223367
233466
243565
253565
263565
273565
283565
293565
303565
313565

Chance of precipitation in August

Any precipitation

Guangzhou gets around 265 mm of rain over 22.1 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 72% and peaks near 76% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
171
272
373
473
574
675
775
876
976
1076
1176
1276
1376
1476
1575
1675
1774
1874
1973
2072
2171
2270
2369
2468
2567
2667
2767
2867
2967
3066
3166

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the miserable band about 95% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
10298
20298
30298
40298
50298
60298
70298
80298
90298
100298
110298
120397
130397
140397
150496
160496
170595
180595
190595
200694
210793
220793
230892
240892
250991
2601090
2701090
2801189
2911287
3011287
3111386

Wind in August

Winds average 9 km/h in August, the calmest month.

Across August, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 13 h 06 min at the start of August to 12 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 36 minutes over August. Sunrise moves from 6:01 AM to 6:12 AM, and sunset from 7:05 PM to 6:42 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.16:017:05
213.16:017:05
313.06:027:04
413.06:027:04
513.06:027:03
613.06:037:02
713.06:037:02
813.06:047:01
912.96:047:00
1012.96:057:00
1112.96:056:59
1212.96:056:58
1312.96:066:58
1412.86:066:57
1512.86:076:56
1612.86:076:55
1712.86:076:54
1812.86:086:54
1912.76:086:53
2012.76:086:52
2112.76:096:51
2212.76:096:50
2312.76:106:49
2412.66:106:48
2512.66:106:48
2612.66:116:47
2712.66:116:46
2812.66:116:45
2912.56:126:44
3012.56:126:43
3112.56:126:42

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.78 kWh/m².

For context, solar energy here swings from a low near 2.95 kWh/m² to a high of 5.07 kWh/m² in July across the year — August's 4.78 kWh/m² sits near the top of that range.

024151015202531
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.9Bright
44.8Bright
54.8Bright
64.8Bright
74.8Bright
84.8Bright
94.8Bright
104.7Bright
114.7Bright
124.7Bright
134.7Bright
144.7Bright
154.7Bright
164.7Bright
174.7Bright
184.7Bright
194.8Bright
204.8Bright
214.8Bright
224.8Bright
234.8Bright
244.8Bright
254.8Bright
264.8Bright
274.8Bright
284.8Bright
294.8Bright
304.8Bright
314.8Bright
Planning a trip in August

Hazard calendar for Guangzhou

In seasonPeak

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

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

Guangzhou's monsoon runs April–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 August a good time to visit Guangzhou?

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

2.5
Sightseeing
11th-best month of the year
4.4
Beach & pool
6th-best month of the year

August is a weaker month for outdoor sightseeing in Guangzhou.

What to pack for Guangzhou in August

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

In August, Guangzhou sees daytime highs around 33°C and nights near 27°C. Pack light clothes and rain gear. Worth having: sun protection. About 22 days see rain.

light clothesrain gearsun protection

Sea temperature near Guangzhou in August

The nearest coast averages about 29°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 67 km away) is warmest in August at about 29°C and coldest in February near 18°C.

It's comfortable for a long swim from Mar 21 to Dec 17 — about 8.9 months when the water holds above 20°C.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan18Cool
Feb18Cool
Mar20Cool
Apr22Refreshing
May26Warm
Jun28Warm
Jul29Tropical
Aug29Tropical
Sep28Tropical
Oct27Warm
Nov23Refreshing
Dec20Refreshing

UV index in Guangzhou in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August 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 Guangzhou peaks around July 16 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 12 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 16UV 12Jan 12UV 6
UV index (midday)Level
Jan6High
Feb7High
Mar8Very high
Apr8Very high
May10Very high
Jun10Extreme
Jul12Extreme
Aug10Very high
Sep9Very high
Oct8Very high
Nov7High
Dec6High

Air quality in Guangzhou in August

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Guangzhou is worst in January — around 47 µg/m³ PM2.5 (poor), about 2.0× the cleanest month (July, 24 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Guangzhou's WHO annual average of 36.4 µg/m³.

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModeratePoorJan 2147 µg/m³Jul 1124 µg/m³
PM2.5 (µg/m³)Level
Jan47Poor
Feb45Poor
Mar42Poor
Apr37Poor
May31Moderate
Jun25Moderate
Jul24Moderate
Aug29Moderate
Sep39Poor
Oct37Poor
Nov42Poor
Dec39Poor
Location & terrain

Where is Guangzhou?

Guangzhou sits at 23.1°N, 113.3°E, 15 m above sea level, in China. The nearest listed city is Zhuhai, 99 km away.

Topography around Guangzhou

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

Within 3 km, the terrain around Guangzhou has only modest variations in elevation — a maximum elevation change of 64 m around an average of 12 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 371 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,285 m.

The land around Guangzhou is covered by artificial surfaces (79%) within 3 km, artificial surfaces (65%) and trees (21%) within 16 km, and trees (49%) and artificial surfaces (26%) within 80 km.

3 km
64 m
16 km
371 m
80 km
1,285 m
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Zhuhai 99 km · Shenzhen 105 km · Macau 106 km · Ha Tsuen 106 km · Tin Shui Wai 106 km · 107 km · Ping Shan 108 km · Yeung Uk Tsuen 108 km

China travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / I
220 V · 50 Hz
Prices
≈ 47% of US
price level, 2025
GDP per capita
$13,862
2025
Happiness
6.1 / 10
World Happiness, 2025
Homicide rate
0.5
per 100k, 2020
Road deaths
17.4
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 464
Religion
unaffiliated 52%folk religion 22%Buddhist 18%Christian 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 Guangzhou (23.1167°, 113.25°, elevation 15 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).