Guangzhou Weather in May

🇨🇳 China

29°C

High

23°C

Low

Rain Days

Sunshine

78%

Humidity

Asia › 🇨🇳 China › Guangzhou

Updated: March 2026

Is May a Good Time to Visit Guangzhou?

3/10

Avoid

May is a avoid time to visit Guangzhou (3/10). With 7 daily sunshine hours and only 22 rain days, this month delivers genuinely reliable outdoor conditions, ranking it 7th sunniest of the year in Guangzhou. May suits travellers visiting for indoor culture, food, and architecture rather than outdoor activities. Pack accordingly for 22 potential rain days. June offers a similar profile at lower hotel rates if dates are flexible. Watch out for prolonged rain stretches: with 22 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.

vs April:27°C avg high

Guangzhou in May rewards travelers with average highs of 29°C and overnight lows around 23°C. Expect around 22 rainy days, so a compact umbrella is worth carrying. With 7 daily sunshine hours on average, conditions are warm and inviting for outdoor exploration.

29°C

Avg High

23°C

Avg Low

22 days

Rain Days

Sunshine

78%

Humidity

Temperature in Guangzhou in May

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 29°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 14 km/h, so wind-chill is not a factor in planning your clothing. In Fahrenheit: 84°F average high, 73°F overnight low. Data sourced from Open-Meteo ERA5 climate reanalysis (1991–2020 normals).

Temperature in May

Monthly Precipitation (mm)

What to Wear in Guangzhou in May

Morning23°CBefore the day warms up

Afternoon29°CPeak daytime temperature

Evening26°CAfter sunset cools down

Packing for Guangzhou in May means dressing for 29°C days and 23°C evenings. A lightweight linen or cotton shirt with loose-fit trousers or a sundress handles the 29°C daytime heat. Evening temperatures settle at 23°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 22 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.

Events in Guangzhou in May

May 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.

What to Pack for Guangzhou in May

Based on 29°C average highs and 22 rainy days

Light layers for morning and evening
Breathable T-shirts and comfortable trousers
UV-protective sunglasses
Quick-dry travel towel
Anti-chafe balm for long walking days
Moisture-wicking synthetic fabrics for active days
Compact folding umbrella
Waterproof outer layer or packable rain jacket
Quick-dry clothing that recovers fast after a shower
SPF 30+ sunscreen
Comfortable walking shoes (a second pair lets the first air out overnight)
Universal travel adapter
Small day pack for city exploration
Reusable water bottle

Best Activities in Guangzhou in May

Early morning walk through Guangzhou's historic market districtBest before 9amTemperatures are still manageable at 25°C before the midday heat builds
Open-air rooftop dining at sunsetFrom 6pm onwardsThe 29°C daytime heat drops noticeably after sunset, making al fresco dining comfortable
Waterfront promenade or harbour walkEarly morning or after 5pmSea breezes cut through the humidity, making coastal routes the most pleasant in heat
Guided cycling tour of the old quarterFirst tour of the day (7-9am)The low-traffic window before tourist crowds and the cooler morning air make this the prime riding slot
Spend a morning in the national or city art museumOpens at 10am; arrive earlyWith 22 rain days expected, having a full-day indoor plan is practical insurance
Cooking class focused on regional cuisineHalf-day sessions run 10am-1pm or 3-6pmIndoor activity that fills a rainy half-day with genuine cultural content
Visit covered historical sites: cathedral, palace, or bazaarAny time; most crowded middayRoofed monuments and covered markets provide exploration without weather exposure
Visit the main botanical garden or city park at seasonal peakYear-round; best light in morningMay brings distinct seasonal changes to public green spaces worth exploring
Seek out chilled local specialities: cold-brew tea, ice desserts, or chilled seafood at street-level stallsAny time; most atmospheric in evening marketsHot-weather street food culture peaks in May, with vendors setting up specifically for warm evenings

Why is Guangzhou warm in May?

In May, Guangzhou sits in the dry season corridor, as the ITCZ shifts away from the region and trade winds bring drier, more stable air. This produces reliably sunny days reaching 29°C, with lower humidity than the wet months. Overnight lows of 23°C offer a pleasant reprieve from the midday heat. 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.

Frequently Asked Questions: Guangzhou in May

In May, Guangzhou experiences average highs of 29°C (84°F) and lows of 23°C (73°F). Expect around 22 rainy days and 7 hours of sunshine per day, with humidity averaging 78%. The 6°C gap between daytime and overnight temperatures is worth planning around: light layers work for most visitors during the day, but an overshirt or cardigan handles the cooler evenings. UV index averages 9, so sun protection is advisable on clear days.

Guangzhou typically sees 22 rainy days in May, with total precipitation of around 331mm. This is a notably wet period. A waterproof jacket or compact umbrella is essential, and it is worth building indoor alternatives into your daily itinerary for the inevitable rainy stretches. For context, the driest month in Guangzhou typically sees 4-6 fewer rain days than May.

Pack lightweight, breathable clothing (linen or cotton), a wide-brim sun hat, SPF 50+ sunscreen, and a refillable water bottle for Guangzhou in May. The 29°C daytime heat demands sun protection during midday hours, typically 11am to 4pm. A compact travel umbrella is also worth packing, as 22 rainy days means afternoon showers are a real possibility. Quick-dry synthetic fabrics are preferable to cotton in 78% humidity.

May is a reasonable time to visit Guangzhou. Expect 22 rainy days, so pack a light rain layer for flexibility. Average temperatures of 29°C make outdoor exploration comfortable during the dry periods. With 7 daily sunshine hours, there are reliable windows of good weather to plan outdoor activities around, even if the month is not the driest on the calendar.

The average high temperature in Guangzhou in May is 29°C (84°F), and the average low is 23°C (73°F). The mean daily temperature is approximately 26°C (79°F). The day-to-night range of 6°C is moderate, meaning a single light jacket covers most situations. These are 30-year climate normals based on the 1991 to 2020 reference period; individual years will vary, particularly in transitional months like spring and autumn.

The best month to visit Guangzhou is generally October. October offers the most sunshine at 9 hours per day and only 6 rainy days. Average temperatures reach 28°C, making it comfortable for sightseeing, outdoor dining, and exploring the city. If your travel dates are flexible, planning your trip around October gives you the best chance of dry, bright weather.

May is shoulder or low season in Guangzhou, meaning fewer tourists and generally lower prices than peak months. With 7 sunshine hours and 22 rainy days, the weather is less of a draw for mass tourism. This is an advantage for travellers who prefer a quieter, more relaxed experience with shorter queues and easier accommodation availability.

In May, Guangzhou suits a range of activities thanks to warm temperatures of 29°C. With frequent rain, indoor activities and covered attractions are a smart choice. Top options include exploring historic neighbourhoods, visiting museums and galleries, local food markets, and day trips to surrounding areas. With 7 hours of sunshine, parks and waterfront walks are particularly enjoyable.

May ranks 7th sunniest of the year in Guangzhou, with an average 7 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 rise 2°C into June. Compared to last month (April: 27°C high, 18 rain days), May is warmer and wetter. May sits in the middle of the annual sunshine ranking for Guangzhou, offering a reasonable balance of good weather and manageable crowds.

Year-Round Climate

Month	High	Low	Rain Days	Sun	Details
January	19°C	10°C	7	6h	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	9h	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

Other Months in Guangzhou

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Plan Your Trip to Guangzhou

Best Time to Visit Guangzhou Guangzhou vs Shenzhen in May Guangzhou vs Hong Kong in May

Nearby Destinations with Similar Weather

These cities are within 500 km and experience broadly comparable weather conditions during the same calendar month, making them practical standalone alternatives or worthwhile additions to a longer regional itinerary.

Shenzhen🇨🇳 China104 km away

29°C24°C low

Hong Kong🇭🇰 Hong Kong129 km away

28°C24°C low

Data Sources for Guangzhou

Guangzhou on Wikipedia Open-Meteo Climate API NOAA National Centers UK Met Office WMO GeoNames

Climate normals represent 30-year averages (1991-2020). Individual years may vary.