Jieyang Temperature by Month
The average annual maximum temperature in Jieyang, China is 28°C (82°F), with daytime highs ranging from 20°C (68°F) in January to 33°C (91°F) in July. This page covers monthly averages, day-night differences, and how Jieyang compares to cities worldwide.
Jieyang Monthly Temperatures
In Jieyang, temperatures can shift dramatically between very warm in summer and pleasant in winter. Nights follow the same pattern, with lows ranging from 26°C (79°F) in July to 11°C (52°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Jieyang by month:
Temperatures tend to bottom out between 4 AM and 6 AM, then climb to their daily peak around 3 PM. July, the warmest month, sees 242 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Jieyang 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.
very warm
warm
pleasant
moderate
cold
very cold
Jieyang vs World: Temperature Compared
Jieyang'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:
Lisbon, Portugal averages 21°C (70°F) annually — warm summers, mild winters, and rain mainly in the cooler months.
On the cooler end, Oslo, Norway averages just 10°C (50°F) annually, with pleasant summers but long, cold winters.
San Francisco, USA averages 19°C (66°F) annually, but with little seasonal variation — summers are often cool and foggy, winters mild.
Melbourne, Australia averages 20°C (68°F) annually — known for unpredictable weather, with four seasons sometimes happening in one day.
What Does the Temperature Feel Like in Jieyang?
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 Jieyang, 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 33°C (91°F) with 77% humidity — conditions that feel 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.
Global average temperatures have risen by around 1.2°C since the pre-industrial era, and the effects are visible across many regions. Winters are milder on average, with fewer frost days and less snow in many parts of the world. Heatwaves are more frequent and more intense, and Europe's summers of 2018, 2019, and 2020 all set records.
Summers are also getting drier in some areas, while winter rainfall has increased in others. This contributies to higher river levels and more flooding. In many countries, spring arrives earlier and autumn lasts longer. It has knock-on effects for wildlife, agriculture, and local ecosystems.
For more on Jieyang's weather — including monthly rainfall, sunshine hours, and humidity — visit our Jieyang climate page.
