Yuanlin climate
Yuanlin (Taiwan) has a tropical monsoon climate (Köppen Am). The average temperature over the year is 25 °C76 °F, and about 1,738 mm68 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Yuanlin climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 2373 | 1457 | 1865 | 491.9 |
| Feb | 2476 | 1559 | 2067 | 451.8 |
| Mar | 2679 | 1763 | 2271 | 833.2 |
| Apr | 2984 | 2169 | 2576 | 1154.5 |
| May | 3087 | 2374 | 2780 | 25610 |
| Jun | 3187 | 2577 | 2882 | 31212 |
| Jul | 3289 | 2678 | 2984 | 2168.5 |
| Aug | 3188 | 2678 | 2983 | 32813 |
| Sep | 3188 | 2577 | 2882 | 1877.4 |
| Oct | 3086 | 2272 | 2679 | 602.4 |
| Nov | 2883 | 2067 | 2475 | 461.8 |
| Dec | 2476 | 1660 | 2068 | 421.6 |
| Year | 3289 | 1457 | 2576 | 1,73868 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 74% | 56% | 3.4 | 10:48 |
| Feb | 74% | 61% | 3.8 | 11:19 |
| Mar | 73% | 66% | 4.1 | 11:57 |
| Apr | 74% | 70% | 4.5 | 12:41 |
| May | 78% | 72% | 4.9 | 13:17 |
| Jun | 84% | 73% | 5.1 | 13:36 |
| Jul | 83% | 67% | 5.5 | 13:29 |
| Aug | 84% | 70% | 4.9 | 12:58 |
| Sep | 82% | 61% | 4.9 | 12:15 |
| Oct | 75% | 47% | 4.5 | 11:33 |
| Nov | 74% | 53% | 3.6 | 10:57 |
| Dec | 73% | 52% | 3.2 | 10:40 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Yuanlin is like
The warmest month is July, with an average high of 32 °C89 °F and a low of 26 °C78 °F. The coldest is January, when highs average 23 °C73 °F and lows 14 °C57 °F. There is a clear seasonal cycle, with 10.3 °C18.6 °F between the average temperature of the warmest and the coolest month.
It is wet, with about 1,738 mm68 in of precipitation per year. The wettest three-month stretch is June–August, which brings 49% of the annual total. The wettest month is August (328 mm13 in), the driest is December (42 mm1.6 in).
Relative humidity ranges from 73% in March to 84% in August. The clearest skies (lowest average cloud amount, 47%) are typical of October. Average wind speed near the ground ranges from 7 km/h (5 mph) in May to 9 km/h (6 mph) in June. Daylight lasts from about 10.7 hours in December to 13.6 hours in June.
Best time to visit Yuanlin
Based on these averages, the most comfortable months for sightseeing and outdoor activities are November–March: average highs of 23 °C73 °F to 28 °C83 °F with 42 mm1.6 in to 83 mm3.2 in of precipitation per month.
The most challenging month is August, which is hot, with average highs of 31 °C88 °F, very wet (328 mm13 in) and humid (84% relative humidity).
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Yuanlin
- Winter (December–February) — highs 2373 to 24 °C76 °F, lows 1457 to 16 °C60 °F, about 45 mm1.8 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket.
- Spring (March–May) — highs 2679 to 30 °C87 °F, lows 1763 to 23 °C74 °F, about 151 mm5.9 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an umbrella or light rain jacket.
- Summer (June–August) — highs 3187 to 32 °C89 °F, lows 2577 to 26 °C78 °F, about 285 mm11 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water and a good rain jacket or umbrella and quick-drying shoes.
- Autumn (September–November) — highs 2883 to 31 °C88 °F, lows 2067 to 25 °C77 °F, about 98 mm3.8 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an umbrella or light rain jacket.
How Yuanlin compares
Compared with Taichung, about 24 km to the northeast, Yuanlin is on average 0.3 °C0.6 °F warmer and receives a similar amount of precipitation.
Of the 12 places in Taiwan covered by World Climates, Yuanlin is the 6th warmest by annual mean temperature and the 11th wettest by annual precipitation. See all of them on the Taiwan climate page.
Places in other countries with the most similar temperature and rainfall pattern: Aberdeen (Hong Kong, Cwa), Macau (Macao, Cwa) and Zhanjiang (China, Cwa).
The same NASA POWER grid cell also contains Nantou (pop. 105,682). Their long-term averages in this dataset are essentially the same as for Yuanlin, so they do not have separate pages.
Nearby places
- Taichung 24 km · 24 °C76 °F · 1,738 mm68 in
- Chiayi City 55 km · 25 °C78 °F · 1,902 mm75 in
- Toufen 88 km · 24 °C75 °F · 1,677 mm66 in
- Hsinchu 102 km · 23 °C73 °F · 1,916 mm75 in
- Yongkang 109 km · 25 °C77 °F · 1,892 mm74 in
- Tainan 114 km · 25 °C77 °F · 1,892 mm74 in
- Taoyuan 136 km · 22 °C72 °F · 1,916 mm75 in
- Taitung 145 km · 26 °C78 °F · 1,824 mm72 in
Frequently asked questions
What is the warmest month in Yuanlin?
July is the warmest month in Yuanlin, with an average high of 32 °C (89 °F) and an average low of 26 °C (78 °F).
What is the coldest month in Yuanlin?
January is the coldest month, with an average high of 23 °C (73 °F) and an average low of 14 °C (57 °F).
When does it rain the most in Yuanlin?
August is the wettest month with about 328 mm (12.9 in) of precipitation; December is the driest with about 42 mm (1.6 in).
What is the best time to visit Yuanlin?
Judging by long-term averages, the most comfortable months are November–March.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 288 m, while Yuanlin lies at about 42 m. Temperatures on this page were therefore adjusted by +1.6 °C2.9 °F using the standard lapse rate of 6.5 °C per 1,000 m.