Ruian Temperature by Month
Ruian, China has an average annual maximum temperature of 23°C (73°F), ranging from 13°C (55°F) in January to 32°C (90°F) in July. Below you'll find a full monthly breakdown and a comparison with cities worldwide.
Ruian Monthly Temperatures
Visitors to Ruian will encounter a climate influenced by big temperature differences across the year. Nighttime temperatures range from 26°C (79°F) in July to 6°C (43°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Ruian 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 213 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Ruian 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
Ruian vs World: Temperature Compared
Ruian's average annual maximum temperature is 23°C (73°F). To put that in context, here's how it compares to a few well-known destinations:
Barcelona, Spain has an annual average of around 21°C (70°F), with warm summers and mild, fairly short winters.
Glasgow, Scotland averages 13°C (55°F) a year — mild but often grey, with cold winters and rarely hot summers.
Shanghai, China averages 21°C (70°F) a year, with warm summers, mild winters, and a noticeable spring and autumn.
Brisbane, Australia averages 26°C (79°F) a year, with warm winters and hot, humid summers.
What Does the Temperature Feel Like in Ruian?
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 Ruian, January is the coolest month, with average highs of 13°C (55°F) and humidity around 74% — considered high. In July, the warmest month, temperatures average 32°C (90°F) with 86% 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 Ruian's weather — including monthly rainfall, sunshine hours, and humidity — visit our Ruian climate page.
