April sets in with the full bloom of spring as
Alishan Township experiences rising temperatures and an increased frequency of rainfall. With a not insignificant rise in rainfall from 117mm (4.61") in
March to 133mm (5.24") in April, the township braces itself for the heavy showers to come in the subsequent months. Daylight hours continue to lengthen, providing ample time for inhabitants to absorb sunlight, benefiting both plant and animal life. As the temperatures transition from the mildly chilly to comfortably warm, the town prepares to welcome summer’s heat. From here, the rains set their foot even further as the township marches towards
May.
Temperature
The onset of April introduces a subtle rise in the average high-temperature, nudging from a comfortable 17°C (62.6°F) in March to a pleasant 20°C (68°F). Throughout April, Alishan Township registers a consistent average low-temperature of 12°C (53.6°F).
Rainfall
In April, the rain falls for 17 days. Throughout April, 133mm (5.24") of precipitation is accumulated. Throughout the year, there are 215 rainfall days, and 2218mm (87.32") of precipitation is accumulated.
Daylight
In April, the average length of the day is 12h and 42min.
On the first day of the month, sunrise is at 05:48 and sunset at 18:12. On the last day of April, sunrise is at 05:23 and sunset at 18:24 CST.
Sunshine
The average sunshine in April is 5h.
UV index
April through
August, with an average maximum UV index of 12, are months with the highest UV index. A UV Index estimate of 11, and higher, represents an extreme health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: In April, the average maximum UV index of 12 translates into the following recommendations:
Practice every essential safety step. People with fair skin could receive burns in fewer than 5 minutes. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.