September weather forecast
Taitung County, Taiwan

September sees a transition from the hot summer temperatures of August to more moderate values in Taitung County. Relative humidity remains quite constant as precipitation levels decrease slightly to 299mm (11.77"). Daylight hours continue to reduce, signaling the tail end of the long summer days. The cooling sea temperature signals the approach of autumn's calmer weather. Notably, September initiates the transition towards the latter part of the year, with temperature, daylight, and rainfall adjusting downwards.

Temperature

The average high-temperature is a still tropical 31°C (87.8°F) in September, hardly different from the 32.2°C (90°F) recorded in August. Taitung County experiences a consistent average temperature of 24.8°C (76.6°F) throughout the nights in September.

Heat index

September's mean heat index is estimated at a blistering 40°C (104°F). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', determines the feeling of heat when you account for the relative humidity. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
Evaporating sweat, an outcome of perspiration, is key in assisting the human body to moderate its temperature. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

The average relative humidity in September is 77.4%.

Rainfall

In Taitung County, Taiwan, in September, it is raining for 13.7 days, with typically 299mm (11.77") of accumulated precipitation. In Taitung County, Taiwan, during the entire year, the rain falls for 124.9 days and collects up to 1856mm (73.07") of precipitation.

Sea temperature

June through September, with an average sea temperature of 29°C (84.2°F), are months with the warmest seawater in Taitung County, Taiwan.
Note: Swimming, diving, and other water activities in the temperature range of 25°C (77°F) to 29°C (84.2°F) are perceived as very enjoyable and comfortable for prolonged durations.

Daylight

In September, the average length of the day is 12h and 17min.
On the first day of the month, sunrise is at 05:38 and sunset at 18:13. On the last day of September, sunrise is at 05:46 and sunset at 17:44 CST.

Sunshine

The average sunshine in September is 5.7h.

UV index

In Taitung County, the average daily maximum UV index in September is 11. A UV Index value of 11, and more, symbolizes an extreme threat to health from exposure to the Sun's UV rays for the average person.
Note: A maximum daily UV index of 11 during September morphs into the following directions:
Practice every precaution of necessity, unprotected skin and eyes might burn in minutes. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Even on a cloudy day, a sunscreen with at least a 30 SPF should be applied generously and frequently reapplied, including after a swim or outdoor exercise. Alert! Sand and water increase UV exposure due to their reflective properties.