Jiangmen Temperature by Month
Jiangmen in Guangdong, China sees significant seasonal temperature differences, with daytime highs between 20°C (68°F) in January and 34°C (93°F) in July, averaging 28°C (82°F) annually. Explore the full monthly breakdown below.
Jiangmen Monthly Temperatures
Visitors to Jiangmen will encounter a climate influenced by big temperature differences across the year. Nighttime temperatures range from 27°C (81°F) in July to 12°C (54°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Jiangmen by month:
The coolest part of the day is typically between 4 AM and 6 AM, while 3 PM is usually the warmest, when solar heating is at its peak. July, the city's warmest month, averages 201 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Jiangmen vs China
The map below shows the annual temperature across China. You can also select individual months if you want to compare a specific time of year.
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Jiangmen vs World: Temperature Compared
Jiangmen's average annual maximum temperature is 28°C (82°F). To put that in context, here's how it compares to a few well-known destinations:
Seville, Spain averages 23°C (73°F) a year — one of the warmer cities in Western Europe, with long hot summers.
Glasgow, Scotland averages 13°C (55°F) a year — mild but often grey, with cold winters and rarely hot summers.
Seoul, South Korea averages 18°C (64°F) a year, with four clear seasons, cold winters, and hot humid summers.
Tokyo, Japan averages 21°C (70°F) a year, with hot summers, cool winters, and a well-defined cherry blossom spring.
What Does the Temperature Feel Like in Jiangmen?
Temperature alone doesn't tell the whole story — humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In Jiangmen, January is the coolest month, with average highs of 20°C (68°F) and humidity around 72% — considered high. In July, the warmest month, temperatures average 34°C (93°F) with 82% humidity — conditions that feel very high. For a full picture, see our humidity page.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Whether a city sits on the coast or deep inland makes a significant difference to its climate. Coastal areas tend to have more stable temperatures year-round — large bodies of water absorb heat slowly in summer and release it gradually in winter, keeping extremes in check. Cities far from the sea don't benefit from that buffer, which is why continental climates tend to have hotter summers and colder winters than their coastal counterparts at the same latitude.
For more on Jiangmen's weather — including monthly rainfall, sunshine hours, and humidity — visit our Jiangmen climate page.
