April weather forecast
Tainan, Taiwan

April in Tainan is when the warmer weather truly sets in. It is during this month that the city sees some notable departures from the milder conditions of the preceding months. Rainfall experiences a dramatic surge in April, rising to 80mm (3.15") and marking the onset of the wetter phase of the year. Concurrently, temperatures trend upwards; the air becomes more humid indicating a clear shift from the moderate conditions of the first quarter of the year. Consequently, April can be seen as a transitional month with amplified dynamics in the weather system.

Temperature

In the transition from March to April, Tainan reports an average high-temperature of a still moderately hot 29.1°C (84.4°F), indicating a close resemblance to the prior month. Nighttime temperatures in April average to an agreeable 21.2°C (70.2°F) in Tainan.

Heat index

Throughout April, the heat index is computed to be a hot 34°C (93.2°F). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.
Understand that the heat index values take into account shaded locations and mild winds. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a composite of temperature and humidity figures to convey how warm it feels. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.

Humidity

In Tainan, the average relative humidity in April is 76.8%.

Rainfall

In Tainan, Taiwan, during April, the rain falls for 7.2 days and regularly aggregates up to 80mm (3.15") of precipitation. Throughout the year, there are 87.4 rainfall days, and 1698mm (66.85") of precipitation is accumulated.

Sea temperature

In Tainan, Taiwan, in April, the average water temperature is 25.8°C (78.4°F).
Note: For swimming, diving, and various water activities, the temperatures ranging from 25°C (77°F) to 29°C (84.2°F) are seen as highly enjoyable and comfortable for extended durations without any discomfort.

Daylight

In April, the average length of the day in Tainan is 12h and 41min.
On the first day of the month, sunrise is at 05:51 and sunset at 18:14. On the last day of April, in Tainan, Taiwan, sunrise is at 05:26 and sunset at 18:26 CST.

Sunshine

The average sunshine in April in Tainan is 5.8h.

UV index

The months with the highest UV index in Tainan are April through August, with an average maximum UV index of 12. A UV Index of 11, and more, symbolizes an extreme threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: In April, the maximum UV index of 12 transforms into these recommendations:
Take all critical precautions, unprotected skin might burn swiftly. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Following every swim or outdoor workout, a sunscreen with an SPF of not less than 30 should be liberally applied and re-applied frequently, even on overcast days. Attention! UV radiation is markedly stronger with water and sand reflections.