Taichung has a warm humid subtropical climate bordering on a tropical monsoon climate, with an average annual temperature of 23.3 °C (73.9 °F) with the highest temperature of the year occur in July and August, while the lowest temperature occur in January and February. Daytime temperatures maintains warm to hot year round, though night time temperatures during the winter months are significantly cooler than those during the summer and the warm daytime temperature. The average annual rainfall is just above 1,700 millimeters (67 in).The average humidity is 80%.
Due to the protection provided by the Central Mountain Range to the east and the Miaoli hills to the north, Taichung is rarely severely affected by typhoons.
However, occasional typhoons emerging from the South China Sea can pose a threat to the city as evidenced by Typhoon Wayne in 1986, which struck the west coast of Taiwan near Taichung.
Due to Taichung plain's strong radiative cooling effect, Taichung City is one of the few (or only) cities of Taiwan where the year round average daily low temperature falls below 20 degrees Celsius, with even most cities of northern Taiwan, such as Taipei and Keelung having an average low of over 20.5 degrees Celsius.
If you are from a high latitude country, you can leave your winter coat behind when coming to Taiwan and
enjoy the pleasant warmth of the sun. If you'd rather experience the carefree
sensation of healthy beads of sweat running down your forehead, then you should
visit the beach at Kending (Kenting) in southern Taiwan, where it is summer all year
round. Don't worry too much about getting burned by the dazzling sun, so long as you
take prudent precautions; the sun may not be as stinging hot as it seems.
Furthermore, the country is surrounded by the ocean; and the ocean breezes, which
are the reasons for Taiwan's humid weather, will surely make you completely forget
the dry cold back home.
If you are from a low latitude country, you will certainly revel in the comfortable warmth of Taiwan's sun.
The coolness that hangs in the air will be a welcome change from the simmering heat
of your native country. You can do some hiking in the mountains, immersing yourself in
the beautiful trees of the forest while inhaling the pure and fresh air that blows across
the island of Taiwan.
Taiwan enjoys warm weather all year round. Weather conditions fluctuate during
spring and winter, while in summer and autumn the weather is relatively stable.
Taiwan is extremely suitable for traveling, as the annual average temperature is a
comfortable 22 degrees Celsius with the lowest temperatures on the lowlands
generally ranging from 12 to 17 degrees Celsius (54-63 Fahrenheit). Therefore, with the exception of a few mountain areas where some
traces of snow can be found during winter, no snow can be seen in Taiwan. During
raining season (March to May), continuously drizzling rain will sometimes fall on
Taiwan. When visiting Taiwan during this period, remember to carry an umbrella at all
time. Although it might seem romantic to have a stroll in the rain, it is no fun to travel
when you're soaking wet. During the summer time (June to August), typhoons
sometimes approach or hit the country.
We suggest you keep an eye on weather reports, because weather conditions are often
severe and unpredictable when typhoons hit Taiwan. In addition, the roaring waves
along the coast are not to be regarded as one of Taiwan's tourist scenes. During the
autumn (September to November), you can wholeheartedly enjoy the cool and
comforting weather, while Taiwan's relatively warm and short winters (December to
February) are the time for you to appreciate the beautifully colored maple trees. The
cold fronts that reach Taiwan sporadically are greatly favored by the island's hot-spring lovers. In short, Taiwan, where it always seems to be spring, is your perfect travel destination!
CENTRAL WEATHER BUREAU