January weather forecast
Tainan, Taiwan

Starting the year off on a mild note, Tainan, Taiwan enjoys a fairly comfortable January. Historically, the temperatures are neither too hot nor too cold, providing a nice respite from the extremes of the summer and winter months. A significant feature of the month is its rainfall level: January receives 17mm (0.67"), a relatively low figure compared to the rest of the year. Humidity is quite high and the UV index is moderate, indicating fewer hours of strong sunlight. This combination results in a temperate atmosphere suitable for outdoor activities.

Temperature

Tainan notes the coldest temperatures in January, with a high average of 22.9°C (73.2°F) and a low of 14.1°C (57.4°F).

Humidity

In Tainan, the average relative humidity in January is 76.9%.

Rainfall

In Tainan, Taiwan, in January, it is raining for 3.7 days, with typically 17mm (0.67") of accumulated precipitation. Throughout the year, there are 87.4 rainfall days, and 1698mm (66.85") of precipitation is accumulated.

Sea temperature

The month with the coldest seawater in Tainan is January, with an average sea temperature of 23.3°C (73.9°F).
Note: Your comfort in 23.3°C (73.9°F) waters hinges on your relationship with the cold, today's sunny disposition, wind patterns, and the air's temperature. For context, Olympic swimmers are no strangers to waters of 25°C (77°F) to 28°C (82.4°F).

Daylight

The average length of the day in January in Tainan, Taiwan, is 10h and 54min.
On the first day of January in Tainan, sunrise is at 06:39 and sunset at 17:24. On the last day of the month, sunrise is at 06:39 and sunset at 17:45 CST.

Sunshine

In Tainan, the average sunshine in January is 5.8h.

UV index

The average daily maximum UV index in January in Tainan is 7. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: In January, the average maximum UV index of 7 translates into the following recommendations:
Guard against overexposure. Protection from sun-induced harm is essential. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Be mindful! Sand and water reflections can up the Sun's UV exposure.