Last updated: January 18, 2025
Taiwan's climate is characterized by a diverse array of Koppen-Geiger climate classes, including Cfa, Cfb, Cwa, Aw, Cwb, and Am, reflecting its complex topography and geographical location. The island experiences significant seasonal variations, with temperatures ranging from a chilly minimum of 1°C (34°F) in February to soaring highs of 36°C (97°F) in July. The average temperature hovers around 23°C (74°F), underlining a generally warm and humid climate that supports rich biodiversity and unique ecosystems. This climatic diversity plays a crucial role in shaping Taiwan's agricultural practices, natural landscapes, and overall environmental dynamics.
Taiwan's temperature patterns showcase a distinct seasonal variation, with cooler winter months in January and February, where minimum temperatures dip to 1°C (34°F) and average around 17°C (63°F). As spring approaches in March and April, temperatures gradually rise, reaching averages of 20°C (68°F) and 22°C (72°F), with maximums peaking at 32°C (89°F) in March. The warmth intensifies throughout late spring and summer, particularly in July and August, when average temperatures hover around 28°C (82°F), peaking at 36°C (97°F). The transition into autumn brings a slight cooling, where October and November see averages of 24°C (76°F) and 22°C (72°F), accommodating the final stretch of warmth before the crispness of winter returns in December. This annual cycle not only defines daily life in Taiwan but also influences the region's agriculture and ecology significantly.
In Taiwan, the climate varies across its cities, with Taichung experiencing a minimum temperature of 6°C (42°F) in January and a maximum of 33°C (93°F) in July, as detailed in monthly temperatures in Taichung. Tainan registers slightly warmer temperatures, ranging from a minimum of 10°C (49°F) in January to a maximum of 35°C (95°F) in May, according to monthly temperatures in Tainan. Meanwhile, Taipei sees the coldest temperatures, reaching a minimum of 3°C (38°F) in January and soaring to 36°C (97°F) in July, as indicated in monthly temperatures in Taipei.
Taiwan experiences significant seasonal variation in precipitation, with a notable increase during the summer months. Beginning in January, average rainfall is relatively low at 71 mm (2.8 in), but it escalates sharply from March onward, peaking in August with a staggering 411 mm (16.2 in). This peak correlates with the typhoon season, where precipitation in June and July exceeds 200 mm (8 in). A gradual accumulation of rainfall occurs throughout the spring and early summer, reflecting the transition from the relatively dry winter months to the wetter season, with June averaging 296 mm (11.6 in) and July at 208 mm (8.2 in).
The frequency of rainy days also mirrors the precipitation patterns, with an increase from 9 days in January and February to 22 days in August, indicative of the monsoon and typhoon influences. As autumn approaches, rainfall levels begin to taper, with October and November recording 126 mm (5.0 in) and 70 mm (2.7 in) respectively. The year concludes with December having 89 mm (3.5 in) of precipitation over about 12 days, setting the stage for a return to the drier conditions characteristic of winter months. This seasonal precipitation cycle plays a crucial role in shaping Taiwan’s lush landscapes and diverse ecosystems.
Taiwan's sunshine duration exhibits a remarkable seasonal trend, with a noticeable increase as the year progresses from winter into summer. Beginning with 198 hours in January, the amount of sunlight steadily climbs, peaking at 322 hours in July. This upward trajectory highlights the country's transition from the cooler, cloudier winter months, where sunlight is in shorter supply, to the vibrant and sun-soaked days of summer. Notably, May and July emerge as the prime months for sunshine, with May recording 303 hours, perfectly setting the stage for the peak of summer.
As the summer wanes into autumn, sunshine hours gradually decrease, yet they remain relatively high, with September and October offering 287 hours and 273 hours, respectively. The shift back towards less sunlight is apparent by November, when hours drop to 241, and December follows suit with 235 hours. This seasonal fluctuation not only impacts daily life but also influences agricultural practices, tourism, and outdoor activities across the island. Understanding these patterns allows both residents and visitors to better plan their engagements with Taiwan’s stunning natural landscapes under varying light conditions.
The UV Index in Taiwan reveals a striking pattern of intensity that peaks during the summer months, necessitating heightened awareness regarding sun exposure. Beginning with a UV Index of 9 in January, conditions are categorized as very high, giving way to an extreme classification of 11 in February. As spring transitions into summer, the index escalates dramatically; by June, July, and August, it reaches a notable 14, consistently labeled as extreme. This indicates that even brief exposure can lead to skin damage without proper protection, with a burn time limited to just 10 minutes during these peak months.
As autumn sets in, the UV Index gradually declines but remains significant, with September still showing an index of 13. In October, the value decreases to 11, and by November, it drops further to 10, both categorized as very high with a return to a longer 15-minute burn time. December sees a slight relief at 8, yet still within the very high range. Overall, these insights underscore the importance of sun safety measures year-round, particularly in the spring and summer, when the sun's harmful effects are most pronounced.
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Daylight duration in Taiwan displays a clear seasonal fluctuation, reflecting the annual cycle of sunlight available to its residents. Starting with about 10 hours of daylight in January, the duration gradually increases, reaching 13 hours by May and maintaining this peak through June and July. This three-month stretch of extended daylight contributes to the vibrant summer atmosphere, enabling outdoor activities and agriculture to thrive under the bright sun.
As summer transitions into autumn, daylight hours begin to wane, with a slight decline to 12 hours in August and September. October sees a further reduction to 11 hours, followed by a return to 10 hours in both November and December. This cyclical pattern not only highlights the rhythmic changes in Taiwan's sunlight but also influences various aspects of life, from energy consumption to cultural practices, as the shifts in daylight hours mark the progression of the seasons.
Daxi, Taiwan, experiences a humid subtropical climate characterized by warm summers and mild winters. Average temperatures range from 16°C (61°F) in January to 29°C (85°F) in July, with the highest temperatures often reaching up to 36°C (97°F) during peak summer months. Precipitation is significant, peaking in June and August, with around 182 mm (7.1 in) and 197 mm (7.8 in) respectively, making these the wettest months. Sunshine is abundant, especially in July, which boasts around 341 hours of sun. For more details, visit Daxi climate.
Donggang, Taiwan, experiences a warm and humid climate characterized by mild winters and hot summers. January temperatures range from 11°C to 27°C (51°F to 80°F), while summer months like July and August see averages around 28°C (83°F). Precipitation peaks in August with approximately 631 mm, contributing to heavy rainfall during the summer. Despite the wetness, sunlight is plentiful, especially in May, which boasts 319 sunshine hours. For more detailed information, visit Donggang climate.
Hengchun, Taiwan experiences a subtropical climate with mild winters and warm summers. January temperatures range from a minimum of 15°C (60°F) to a maximum of 25°C (78°F), while July sees higher averages of 28°C (83°F). The region receives significant rainfall, particularly in the summer months, with August recording up to 479 mm (18.8 in) of precipitation. Sunshine is abundant, peaking in July with 332 hours, making it an attractive destination year-round. For more detailed information, visit Hengchun climate.
Hsinchu, Taiwan experiences a humid subtropical climate with distinct seasons. Temperatures range from a chilly 6°C (42°F) in January to a warm 36°C (97°F) in July, peaking in the summer months. Precipitation is highest during the summer, particularly in August with 268 mm (10.6 in), while the winter months remain relatively dry. Sunshine hours are abundant, especially in July with 341 hours, contributing to Hsinchu's warm and inviting atmosphere. For more details, visit Hsinchu climate.
Hualien City, Taiwan experiences a humid subtropical climate characterized by mild winters and hot, humid summers. January temperatures range from a minimum of 2°C to a maximum of 23°C, while July sees temperatures rise to a maximum of 31°C. Precipitation is substantial, peaking around June with 397 mm, and July is the wettest month. The city enjoys ample sunshine, particularly in July with 312 hours. For more detailed information, visit the Hualien City climate.
Keelung, Taiwan experiences a mild maritime climate characterized by warm summers and cool winters. Average temperatures range from 17°C (63°F) in January to 28°C (84°F) in July, with yearly peaks reaching up to 33°C (91°F) in August. Precipitation is abundant, particularly in June and October, receiving over 200 mm each month. The area enjoys significant sunshine hours, especially in summer, with July boasting 337 hours. For more detailed information, visit Keelung climate.
Lugu, Taiwan experiences a temperate climate with distinct seasons. Winter months like January and February are cooler, with average temperatures ranging from 15°C (60°F) to 16°C (61°F) and minimal rainfall. As summer approaches, temperatures rise significantly, peaking in July and August with averages of 25°C (77°F) and notable precipitation, particularly in August with 500 mm (19.7 in). The area enjoys ample sunshine throughout the year, with May boasting the highest sunshine hours at 301. For more details, visit Lugu climate.
Magong, Taiwan, experiences a temperate climate with mild winters and warm summers. Average temperatures range from 18°C (65°F) in January to 28°C (83°F) in July, with maximums peaking at 30°C (86°F) during the summer months. Rainfall is significant, especially in May and August, with June recording the highest precipitation at 229 mm (9.0 in). The area enjoys abundant sunshine, particularly in the summer, with July averaging 332 hours of sunshine. For more details, visit Magong climate.
Miaoli, Taiwan experiences a subtropical climate characterized by warm summers and mild winters. Average temperatures range from a low of 7°C (45°F) in January to a high of 35°C (96°F) in July, with the warmest months being July and August. Precipitation is highest during the summer months, particularly August, with an average of 320 mm (12.6 in), while January and November are relatively drier. The region enjoys significant sunshine, especially in the summer, with July offering around 331 hours of sunlight. For more details, visit Miaoli climate.
Nantou, Taiwan, experiences a diverse climate characterized by warm temperatures and significant rainfall throughout the year. The temperature ranges from a minimum of 5°C (42°F) in January to a maximum of 35°C (95°F) in July, with the warmest months being May through August. The region sees high precipitation levels, peaking in August with 402 mm (15.8 in), while sunshine hours are abundant, especially in July, boasting 319 hours of sunlight. For more detailed climate information, visit Nantou climate.
Pingtung, Taiwan experiences a warm and humid climate characterized by mild winters and hot summers. Average temperatures range from 18°C (66°F) in January to 26°C (80°F) in May, peaking at 28°C (82°F) in July and August. Precipitation is highest during the summer months, especially in August, which sees significant rainfall at 711 mm (28.0 in). The area enjoys ample sunshine, with May offering the most hours at 308. For more detailed climate information, visit Pingtung climate.
Puli, Taiwan experiences a temperate climate characterized by distinct seasons. Winter temperatures range from a minimum of 1°C (34°F) in January to a maximum of 28°C (83°F) in April, while summer highs peak at around 32°C (89°F) in July. The region is also notable for its substantial rainfall, especially in July and August, which receive over 400mm. Sunshine hours are abundant, with the peak occurring in July at 319 hours. For more detailed information, visit Puli climate.
Taichung, Taiwan experiences a humid subtropical climate with distinct seasons. Temperatures range from a minimum of 6°C (42°F) in January to a maximum of 33°C (93°F) in July, with the warmest months being May through August. Precipitation is highest in August, averaging 439 mm (17.3 in), contributing to the region’s lush greenery. Sunshine is abundant, particularly in July with 331 hours of sunlight. For more detailed information, visit Taichung climate.
Tainan, Taiwan experiences a humid subtropical climate with hot summers and mild winters. Temperatures range from a cool 10°C (49°F) in January to a high of 35°C (95°F) in May, with peak warmth in July and August. Rainfall is significant, particularly in June and August, totaling over 400 mm (15.7 in) month, contributing to a humid environment. Despite heavy precipitation, Tainan enjoys numerous sunny days, with May boasting the most sunshine at 304 hours. For more detailed information, visit Tainan climate.
Taipei, Taiwan experiences a humid subtropical climate with distinct seasons. Winters (December to February) are mild, featuring average temperatures around 15°C (59°F) and increasing rainfall, notably in April and May. Summers (June to August) are hot and humid, with peak temperatures reaching 36°C (97°F) and significant precipitation, particularly in June and August. The city enjoys ample sunshine during summer months, with July featuring the highest at 337 hours. For more detailed information, visit Taipei climate.
Taitung, Taiwan experiences a warm and humid climate, with average temperatures ranging from 19°C (66°F) in January to 28°C (83°F) in July. The region receives significant rainfall, especially in May and August, with monthly precipitation peaking at 381 mm (15.0 in). Despite the rain, Taitung enjoys ample sunshine, particularly in the summer months, with July averaging 332 hours of sunlight. For more detailed information on the climate, visit Taitung climate.
Taoyuan, Taiwan experiences a humid subtropical climate, marked by hot summers and mild winters. Average temperatures range from 16°C (62°F) in January to a peak of 29°C (84°F) in July and August. Precipitation is highest in the summer months, particularly in June and August, contributing to a generally humid atmosphere, with an average annual rainfall of approximately 1,200 mm. Despite the rain, Taoyuan enjoys significant sunshine, particularly in the summer, with July boasting around 341 hours of sunlight. For more details, visit Taoyuan climate.
Taoyuan City, Taiwan, experiences a subtropical climate characterized by warm summers and mild winters. Average temperatures range from a minimum of 6°C (42°F) in January to a maximum of 36°C (97°F) in July, with rainfall peaking in June and August, accumulating up to 197 mm (7.8 in). The city enjoys abundant sunshine, particularly in July, which sees around 341 hours of sun. For more detailed information on the climate conditions, visit Taoyuan City climate.
Yilan, Taiwan experiences a humid subtropical climate with warm summers and mild winters. January temperatures range from 5°C to 24°C, gradually rising to highs of 35°C in August. The region is characterized by significant rainfall, particularly in June (389 mm) and October (397 mm), making it one of the wetter months. Sunshine is abundant, peaking in July with 334 hours, while winter months see around 162 to 210 hours. For more details, visit Yilan climate.
In conclusion, Taiwan's climatic and environmental patterns, characterized by diverse temperature ranges, significant precipitation, varied sunshine hours, high UV Index levels, and fluctuating daylight durations, play a crucial role in shaping the island's ecosystems, agriculture, and lifestyle. Understanding these seasonal trends allows residents and visitors alike to better adapt to the unique challenges and opportunities presented by Taiwan’s dynamic climate. From the vibrant summers marked by intense sunlight and rainfall to the serene winters with cooler temperatures and shorter days, this intricate interplay of factors underscores the importance of environmental awareness in enjoying and preserving Taiwan’s rich natural heritage.