Weather in Tainan

Stay informed about the latest weather conditions in the city of Tainan. Below you will find current data, forecasts, and useful weather charts.

Tainan welcomes its guests with a warm and humid climate, which can be described as tropical monsoon. This means that it is warm here almost all year round, and the change of seasons is expressed mainly in the amount of precipitation, rather than in sharp temperature changes. The average annual temperature ranges from a pleasant 18-22°C in the winter months to a hot 27-30°C during the summer period.

Two main seasons are clearly traceable in Tainan. The dry season usually lasts from November to April. At this time, the weather is predominantly sunny, with minimal precipitation (only 1-3 mm per month) and comfortable temperatures. This is the ideal time for long walks and exploring the city. Then, from May to October, the wet season sets in. The air temperature remains high, but the amount of rainfall increases significantly, peaking in June-August (up to 10-16 mm and 24-27 rainy days per month). Rains during this period can often be heavy, but can also occur as short-term showers.

Thus, the weather in Tainan offers pleasant warmth throughout the year, but with a distinct summer rainy season. If you prefer drier weather for exploring the city, then the months from November to April will be the most comfortable for you. The summer months, despite the increased humidity and frequent rainfall, attract visitors with their lush greenery and special tropical atmosphere.

A warm climate is observed in Tainan year-round, with distinct but not extreme temperature fluctuations between seasons. The average annual temperature varies from a cool winter to a hot summer. The hottest month is usually July, when the average temperature reaches 27.9°C, and daytime highs can approach 29.9°C. On the other hand, the coolest month is considered to be January with an average temperature of about 18.6°C, when nightly lows drop to an average of 16.2°C.

The summer months in Tainan, especially from June to September, are characterized by consistently high temperatures. During this period, average daytime highs hold steadily in the range of 29.1°C - 29.9°C, and nighttime temperatures rarely drop below 25.2°C - 26.0°C. Such weather feels hot and humid, especially considering that the peak of the rainy season falls during the summer months. High air humidity, accompanying abundant precipitation (up to 27 rainy days in August), intensifies the sensation of heat, making the days sultry and the nights warm and stuffy.

Winter in Tainan, covering December, January, and February, brings significant relief from the summer heat. Temperatures during these months are mild and comfortable. Average daytime highs range from 21.0°C to 22.3°C, and nightly lows drop to 16.2°C - 17.8°C. This is a pleasant time for walks and active leisure, as the weather is usually neither too cold nor exhaustingly hot, plus the amount of precipitation is minimal. Diurnal temperature fluctuations in Tainan are generally small throughout the year; the difference between average daytime highs and nightly lows is usually about 4-5°C, which ensures a relatively stable temperature background.

A pronounced seasonality in the distribution of precipitation is observed in Tainan, which is characteristic of a tropical monsoon climate. The year is clearly divided into dry and wet periods, with the amount of falling rain and the number of rainy days varying significantly from month to month. Snow is uncharacteristic for Tainan due to high average annual temperatures.

The dry season usually lasts from November to April. At this time, precipitation is minimal, creating comfortable conditions for walking and sightseeing. The driest months are January, February, November, and December, when on average only 1 mm of precipitation falls, and the number of rainy days does not exceed 6-7. In March (2 mm) and April (3 mm), the amount of precipitation increases slightly, but the weather remains predominantly dry. Rains during this period, if they occur, are usually light and short-lived.

The wet season in Tainan begins in May and continues until October, bringing with it a significant increase in the amount of precipitation. Already in May, about 7 mm of rain falls, and the number of rainy days increases to 18. The peak of the rainy season falls on the summer months: June (12 mm of precipitation, 24 rainy days), July (10 mm, 25 rainy days), and especially August, which is the wettest month of the year with an average precipitation of 16 mm and approximately 27 rainy days. During this period, rains can be intense and prolonged. By September (6 mm, 18 rainy days) and October (4 mm, 14 rainy days), the intensity of precipitation gradually decreases, preparing the transition to the dry season.

When planning a trip to Tainan, it is important to consider its warm and humid tropical climate. Regardless of the time of year, comfortable shoes for long walks around the city will become your best companion. Also, do not forget sunscreen, a hat, and sunglasses, as the sun here is quite active. Choose clothes made of light, "breathable" natural fabrics. Given that the weather in Tainan has a pronounced seasonality in terms of precipitation, it is worth preparing your wardrobe accordingly.

If your trip falls on the dry season, which lasts approximately from November to April, you will mainly need light summer clothing: t-shirts, shorts, sundresses, and thin trousers. The average temperature during these months ranges from 18.6°C to 24.2°C, but evenings and early mornings, especially in January-February, can be a little cooler (around 16-17°C). Therefore, a light jacket, fleece sweater, or cardigan will be very handy. The amount of precipitation during this period is minimal (1-3 mm per month), so a bulky umbrella is unlikely to be needed, although a small folding one can be taken just in case.

During the wet season, which covers the period from May to October, preparation for rain comes to the fore. At this time, the air temperature is high (on average 26-28°C), but the amount of precipitation also increases significantly, peaking in August (16 mm and up to 27 rainy days). Be sure to take a reliable umbrella and/or a light raincoat or waterproof windbreaker with you. Clothing made from quick-drying materials will be very practical. Waterproof shoes or sandals may also come in handy. The principle of layering in clothing will help you comfortably adapt to the changes between the hot and humid outdoors and cool air-conditioned rooms.