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

The dawn of September sees an average high-temperature of a still warm 27°C (80.6°F), subtly contrasting with August's 28°C (82.4°F). Sun Moon Lake, during September, witnesses an average low-temperature of 20°C (68°F).

Rainfall

In Sun Moon Lake, in September, during 17 rainfall days, 201mm (7.91") of precipitation is typically accumulated. 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, 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

In September, the average daily maximum UV index is 11. 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: The maximum UV index of 11 during September leads to these instructions:
Ensure all key precautions. Defense against sun exposure is critical. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.