September weather forecast
Kaohsiung City, Taiwan

September brings a marked change in the weather of Kaohsiung City, as the intensity of summer slowly dissipates. The drop in rainfall to 242mm (9.53") over 11.2 days points towards the receding monsoon. The transition from the hot and rainy days of August is quite evident in September. The promise of further reduction in humidity and rainfall in the upcoming month enthralls residents. It is a month signaling a gradual return to the more pleasant weather of the year-end.

Temperature

Kaohsiung City signifies an average high-temperature of a still tropical 31.5°C (88.7°F) in September, closely mirroring the 31.9°C (89.4°F) of August. In September, the temperature in Kaohsiung City drops to an average of 25.6°C (78.1°F) at night.

Heat index

The heat index value during September is appraised at an extremely hot 42°C (107.6°F). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
The heat index's values are generally associated with conditions in shade and light breezes. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for 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.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

In Kaohsiung City, the average relative humidity in September is 78.9%.

Rainfall

In Kaohsiung City, in September, it is raining for 11.2 days, with typically 242mm (9.53") of accumulated precipitation. Throughout the year, there are 88.6 rainfall days, and 1885mm (74.21") of precipitation is accumulated.

Sea temperature

In Kaohsiung City, in September, the average water temperature is 28.8°C (83.8°F).
Note: Surface water temperatures between 25°C (77°F) and 29°C (84.2°F) offer outstanding conditions for any water activity, providing extreme pleasure for extended periods.

Daylight

The average length of the day in September in Kaohsiung City, Taiwan, is 12h and 17min.
On the first day of the month, sunrise is at 05:41 and sunset at 18:16. On the last day of September, in Kaohsiung City, sunrise is at 05:49 and sunset at 17:47 CST.

Sunshine

In Kaohsiung City, the average sunshine in September is 5.9h.

UV index

In Kaohsiung City, the average daily maximum UV index in September is 11. A UV Index estimate of 11, and higher, represents an extreme health hazard from exposure to the Sun's UV radiation for the average person.
Note: In September, the maximum UV index of 11 suggests this advice:
Utilize all vital precautions. Guarding against sun harm is non-negotiable. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Prompt application of a broad-spectrum sunscreen, SPF 30+, is necessary after a swim or an outdoor workout and it should be re-applied every two hours. Take note! Sand and water reflections strengthen the Sun's UV exposure.