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Guangzhou in May: Weather, Average temperature and Climate

Discover the weather for Guangzhou in May and if it’s a good time to travel (based on historical data).
Check flight prices to Guangzhou on Avionero:
May

Weather in Guangzhou in May 2025

OK Weather
Warm
🌧️
Rainy
May could be a good time to visit Guangzhou, as the weather is generally fine. The average high temperature is around +30°C, and there are typically 1 sunny days in May. However, expect about 26 rainy days, and total monthly rainfall of approximately 360 mm. The weather is changeable so pack for every eventuality. Search flights in one click on Avionero.

Average weather

☀️
+30°C
Avg. max. temperature
+15°C
Min.
+38°C
Max.
360 mm
Total precipitation
81%
Avg. humidity
1 m/s
Avg. wind
1 ☀️
Sunny Days
4 ⛅️
Cloudy
26 🌦
Rainy
Our opinion: Guangzhou has OK weather in May.

Average temperature in Guangzhou in May

Here are the expected maximum, average and minimum temperatures in Guangzhou for May based on the historical data.
Last Year
Historical Data

The expected average maximum temperature in May is +30°C with a maximum of +38°C and a minimum of +20°C.

The average maximum temperature goes up 50% by the end of the month, compared with the beginning of the month, from +28°C to +37°C.

Is Guangzhou warm or cold in May?

Guangzhou is typically warm in May.

Maximum temperatures go up compared to the previous month from +26°C to +30°C. The minimum temperature also goes up from +21°C to +24°C.

It’s generally warm, but pack a long-sleeve shirt for evenings.

Take a look at how May is compared to other months in Guangzhou:

Climate in Guangzhou in May

Guangzhou weather looks like this, on average, in May and the surrounding months.
AprilMayJune
Avg. temperature
+26°C+30°C+32°C
Min. temperature
+9°C+15°C+19°C
Max. temperature
+34°C+38°C+38°C
Rainfall
246 mm360 mm366 mm
Wind
2 m/s1 m/s1 m/s
Humidity
80%81%82%
Air pressure
1011 HPa1008 HPa1004 HPa
Sunny days
110
Cloudy days
642
Rainy days
242628
Snowy days
000

May weather is still as ok as in April. It’s getting warmer as May arrives. The average maximum temperature goes up from +26°C to +30°C during the day. Prepare for more rain. Average rainfall goes from 246 mm to 360 mm. Humidity rises from 80% to 81%. Winds are calmer in comparison to April, going down from 2 m/s to 1 m/s on average. The amount of sunny days stay about the same, averaging 1 sunny days during the month.

June brings much the same weather, it remains ok.

Wind

Wind speed in Guangzhou in May based on historical data.
Last Year
Historical Data

The average wind speed is 2 m/s getting up to 4 m/s which is a light breeze; barely moving the tree leaves.

The average wind speed in Guangzhou is gradually increasing during May, going from 1 m/s to 1 m/s over the course of the month.

Rain

Amount of rainfall in mm during May in Guangzhou based on historical data.
Last Year
Historical Data
Total precipitation in May is about 155 mm, with a 71% chance of rain on a typical day. The maximum amount of rainfall per day is around 25 mm, which is moderate rain. May is a pretty wet month with over 22 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of galoshes.
May is one of the rainiest months in Guangzhou, here is a comparison with other months, total mm:
Guangzhou wettest month is June, where a typical day has a 93% chance of precipitation and 366 mm of rainfall per day. December, on the other hand, is the driest month with a mere 26% chance of precipitation and 39 mm of rainfall per day.

How was the weather last May in Guangzhou?

This is the weather in Guangzhou in May 2023:
1 May
☁️
+28°C
2 May
☁️
+28°C
3 May
☁️
+30°C
4 May
☁️
+32°C
5 May
☁️
+31°C
6 May
🌧️
+30°C
7 May
☁️
+25°C
8 May
☁️
+23°C
9 May
☁️
+26°C
10 May
☁️
+26°C
11 May
🌧️
+24°C
12 May
🌧️
+22°C
13 May
🌧️
+25°C
14 May
☁️
+27°C
15 May
☁️
+30°C
16 May
☁️
+29°C
17 May
☁️
+32°C
18 May
🌧️
+35°C
19 May
🌧️
+33°C
20 May
🌧️
+32°C
21 May
🌧️
+34°C
22 May
🌧️
+35°C
23 May
☁️
+28°C
24 May
🌧️
+27°C
25 May
☁️
+31°C
26 May
☁️
+33°C
27 May
☁️
+34°C
28 May
☀️
+33°C
29 May
☀️
+35°C
30 May
☀️
+38°C
31 May
☁️
+37°C
In May 2023 Guangzhou had 3 sunny days, 18 cloudy days, and 10 rainy days. The average maximum temperature was +30°C, with an absolute maximum of +38°C and a minimum of +22°C. The average humidity was 81%, with a maximum of 100% and a minimum of 52%. The average wind speed was 2 m/s, with a maximum of 6 m/s and a minimum of 0 m/s.
Are you planning a trip in May?

Climate Change over Years

This is how Guangzhou climate have been changing during last 43 years period.

The climate in Guangzhou in May has not changed much over the last 43 years.

The average temperature was the lowest in 1984 (+25°C) and the highest in 2020 (+28°C). The driest year was 1991 with only 1439 mm of rainfall, and the wettest year was 2019 with 3629 mm.

FAQ

Frequently asked questions about the weather in Guangzhou in May:

Is May a good time to visit Guangzhou?

It’s always a good time to visit Guangzhou, but the weather is changeable in May, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.

Can you sunbathe in Guangzhou in May?

May is warm in Guangzhou. You may enjoy some beach or pool time in the day, but pack something a tad warmer for the evening.

Is Guangzhou rainy in May?

Guangzhou is often rainy in May. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.

Is it sunny in Guangzhou in May?

Usually, it’s not very sunny in Guangzhou in May, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Other cities in China

Check out the weather for other cities in China.

Monthly weather in Guangzhou

Source of the data

For this page, we’ve looked at the typical weather in Guangzhou, based on historical hourly weather data from January 1, 1979, to December 31, 2023.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.