Monthly weather averages & travel planning

Asia › 🇨🇳 China › Guangzhou
Updated: March 2026
August is a fair time to visit Guangzhou (4/10). With 9 daily sunshine hours and only 24 rain days, this month delivers genuinely reliable outdoor conditions, ranking it 2nd sunniest of the year in Guangzhou. August suits travellers visiting for indoor culture, food, and architecture rather than outdoor activities. Pack accordingly for 24 potential rain days. September offers a similar profile at lower hotel rates if dates are flexible. Watch out for prolonged rain stretches: with 24 wet days, a fully outdoor itinerary is risky. Build in museum days and covered market visits as contingency. Planning tips: most accommodation categories have availability, and last-minute deals are common. The quieter streets and shorter queues can make this a genuinely enjoyable time to visit for the right type of traveller. Budget-conscious visitors will find the best value of the year in this period.
Guangzhou in August rewards travelers with average highs of 32°C and overnight lows around 26°C. Expect around 24 rainy days, so a compact umbrella is worth carrying. With 9 daily sunshine hours on average, conditions are warm and inviting for outdoor exploration.
32°C
90°F
Avg High
26°C
79°F
Avg Low
24 days
294 mm total
Rain Days
9h
per day avg
Sunshine
78%
Humid
Humidity
The 6°C day-night temperature range is typical for continental climates: a light jacket in the morning that you shed by midday and need again after sunset. At 78% humidity, the 32°C daytime high feels 2-4°C warmer in practice: quick-dry fabrics and shade-seeking between noon and 3pm are the sensible response. UV index averages 9 this month, classed as high to very high. SPF 30+ sunscreen, a brim hat, and sunglasses are not optional between 10am and 4pm. Winds are calm at an average 13 km/h, so wind-chill is not a factor in planning your clothing. In Fahrenheit: 90°F average high, 79°F overnight low. Data sourced from Open-Meteo ERA5 climate reanalysis (1991–2020 normals).
Packing for Guangzhou in August means dressing for 32°C days and 26°C evenings. A lightweight linen or cotton shirt with loose-fit trousers or a sundress handles the 32°C daytime heat. Evening temperatures settle at 26°C, a modest 6°C drop that a light cardigan or denim jacket covers. For footwear, breathable walking sandals work for casual exploration, but closed-toe trainers are better for uneven surfaces in the historic centre. With 24 rain days expected, a compact travel umbrella is worth the bag space. A waterproof jacket is better than an umbrella if you plan full-day outdoor routes. For temple and religious site visits, carry a lightweight scarf or sarong to cover shoulders and knees, required at most major sites across the region. At 78% average humidity, quick-dry synthetic or bamboo fabrics dry overnight and stay comfortable longer than cotton.
Local tip: Loose-weave linen and moisture-wicking fabrics are the practical choice in Guangzhou's heat and humidity. Many shopping centres run air conditioning at near-arctic levels, so a thin layer in your bag prevents discomfort indoors.
August has no major festivals or public holidays in Guangzhou, which is one of its practical advantages for independent travellers. Attractions run at lower capacity than during peak event periods, queues are shorter, and accommodation is easier to find without needing to book many months in advance. Local restaurants, markets, and transport operate at a relaxed pace, making this an ideal time for visitors who prefer a more authentic, unhurried experience of everyday city life rather than large crowds drawn in by a single major headline event.
Based on 32°C average highs and 24 rainy days
Guangzhou's August climate is governed by the Inter-Tropical Convergence Zone (ITCZ), which draws moisture-laden trade winds across the region, producing the characteristic wet season rainfall of steamy tropical cities. Daytime heat peaks around 32°C, moderated slightly by afternoon convective showers. Overnight temperatures remain warm at 26°C because the humid air retains heat effectively. Climate data: Open-Meteo ERA5 (1991–2020).
Sunshine Hours
The average number of hours per day with direct sunlight. Calculated from satellite measurements. Days with more than 7 hours of sunshine are ideal for outdoor activities. Under 3 hours means overcast conditions dominate.
UV Index
A scale from 0-11+ measuring ultraviolet radiation intensity. UV 0-2: Minimal risk. UV 3-5: Moderate, wear sunscreen. UV 6-7: High, hat and SPF 30+ essential. UV 8-10: Very High, limit midday exposure. UV 11+: Extreme, seek shade between 10am-4pm.
Rain Days
A rain day is counted when precipitation exceeds 0.1mm. This threshold captures even light drizzle. Unlike total rainfall in mm, rain days tells you how often you might need an umbrella, which is useful for planning outdoor activities.
Humidity
Relative humidity as a percentage. Below 40%: Dry, skin and throat may feel parched. 40-60%: Comfortable, ideal for most people. 60-80%: Sticky, light breathable fabrics recommended. Above 80%: Muggy, heat feels more intense; quick-dry clothing is essential.
Guangzhou in August
August ranks 2nd sunniest of the year in Guangzhou, with an average 9 daily sunshine hours. The driest months are December, October, and November. July is the hottest month (32°C avg high); January is the coolest (19°C). From here, temperatures fall 2°C into September. Compared to last month (July: 32°C high, 23 rain days), August is similarly warm and wetter. August is among the top three sunniest months to visit Guangzhou.
| Month | High | Low | Rain Days | Sun | Details |
|---|---|---|---|---|---|
| January | 19°C | 10°C | 7 | 7h | View |
| February | 20°C | 12°C | 10 | 6h | View |
| March | 23°C | 16°C | 15 | 5h | View |
| April | 27°C | 20°C | 18 | 6h | View |
| May | 29°C | 23°C | 22 | 7h | View |
| June | 31°C | 25°C | 24 | 8h | View |
| July | 32°C | 26°C | 23 | 10h | View |
| August | 32°C | 26°C | 24 | 9h | View |
| September | 30°C | 24°C | 16 | 9h | View |
| October | 28°C | 21°C | 6 | 9h | View |
| November | 25°C | 16°C | 6 | 8h | View |
| December | 20°C | 11°C | 5 | 7h | View |
January
7 rain days, 7h sun
February
10 rain days, 6h sun
March
15 rain days, 5h sun
April
18 rain days, 6h sun
May
22 rain days, 7h sun
June
24 rain days, 8h sun
July
23 rain days, 10h sun
August
24 rain days, 9h sun
September
16 rain days, 9h sun
October
6 rain days, 9h sun
November
6 rain days, 8h sun
December
5 rain days, 7h sun
Cities within 500 km with comparable weather conditions
Data Sources for Guangzhou
Climate normals represent 30-year averages (1991-2020). Individual years may vary.