Guanshan Temperature by Month

The average annual maximum temperature in Guanshan, Taitung County, Taiwan is 23°C (73°F), with daytime highs ranging from 18°C (64°F) in January to 28°C (82°F) in July. This page covers monthly averages, day-night differences, and how Guanshan compares to cities worldwide.

Seasonal changes in Guanshan bring a little variety without extreme temperature swings. Nighttime lows 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 Guanshan by month:

From around 4 AM to 6 AM temperatures are at their lowest; by 3 PM they've climbed to their daily peak. July, the warmest month, averages 243 hours of sunshine.

The chart below shows the average temperature throughout the year:

Guanshan'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:

Seville, Spain averages 23°C (73°F) a year, one of the warmer cities in Western Europe, with long hot summers.

Reykjavík, Iceland averages 9°C (48°F) a year, mild summers by Icelandic standards, but cold winters and frequent wind.

Chicago, USA averages 15°C (59°F) annually, known for extreme seasonal swings, from bitterly cold winters to warm summers.

Perth, Australia averages 25°C (77°F) annually, with a classic Mediterranean climate, hot dry summers and mild wet winters.

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 Guanshan, January is the coolest month, with average highs of 18°C (64°F) and humidity around 73%, considered high. In July, the warmest month, temperatures average 28°C (82°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 Guanshan's weather, including monthly rainfall, sunshine hours, and humidity, visit our Guanshan climate page.