Ruisui Temperature by Month
Ruisui in Hualien County, Taiwan sees moderate seasonal temperature shifts, with daytime highs between 17°C (63°F) in January and 27°C (81°F) in July, averaging 22°C (72°F) annually. Explore the full monthly breakdown below.
Ruisui Monthly Temperatures
The climate in Ruisui experiences moderate temperature changes, with mild shifts between seasons. At night, temperatures range from 22°C (72°F) in July to 12°C (54°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Ruisui 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 255 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Ruisui vs Taiwan
The map below shows the annual temperature across Taiwan. You can also select individual months if you want to compare a specific time of year.
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Ruisui vs World: Temperature Compared
Ruisui's average annual maximum temperature is 22°C (72°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.
Queenstown, New Zealand averages 10°C (50°F) annually — remember seasons are flipped, so its coldest months fall in June and July.
Shanghai, China averages 21°C (70°F) a year, with warm summers, mild winters, and a noticeable spring and autumn.
Perth, Australia averages 25°C (77°F) annually, with a classic Mediterranean climate — hot dry summers and mild wet winters.
What Does the Temperature Feel Like in Ruisui?
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 Ruisui, January is the coolest month, with average highs of 17°C (63°F) and humidity around 75% — considered high. In July, the warmest month, temperatures average 27°C (81°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.
For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained — so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.
For more on Ruisui's weather — including monthly rainfall, sunshine hours, and humidity — visit our Ruisui climate page.
