September weather forecast
Sun Moon Lake, Taiwan

Sun Moon Lake in September experiences a gradual descent from the highs of summer. The UV index begins to reduce, indicating a declining potential for harm from unprotected sun exposure. The persistent rainy weather brings relief from the summer heat. The daylight hours start to recede and there is a slight drop in temperatures. Uniquely, September receives lower rainfall of 201mm (7.91") compared to the heavy deluge witnessed in the preceding monsoon months.

Temperature

Transitioning from August to September, Sun Moon Lake observes an average high-temperature of a still moderately hot 27°C (80.6°F), differing subtly from the previous month. Sun Moon Lake's nighttime temperature during September is consistently averaged at an agreeable 20°C (68°F).

Rainfall

In Sun Moon Lake, in September, it is raining for 17 days, with typically 201mm (7.91") of accumulated precipitation. Throughout the year, there are 208 rainfall days, and 2046mm (80.55") of precipitation is accumulated.

Daylight

In Sun Moon Lake, the average length of the day in September is 12h and 17min.
On the first day of September in Sun Moon Lake, Taiwan, sunrise is at 05:38 and sunset at 18:14. On the last day of the month, sunrise is at 05:47 and sunset at 17:44 CST.

Sunshine

In Sun Moon Lake, the average sunshine in September is 6h.

UV index

The average daily maximum UV index in September is 11. A UV Index estimate of 11, and higher, represents an extreme threat to health from exposure to the Sun's UV rays for average individuals.
Note: A maximum high daily UV index of 11 during September translates into the following directions:
Execute all crucial precautions. Warding off sun exposure is non-negotiable. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.