September weather forecast
Wenzhou, China

In September, Wenzhou witnesses a significant drop in temperature to a relatively pleasant 28.8°C (83.8°F). The rainfall decreases to 205mm (8.07"), providing an opportunity for residents to enjoy outdoor activities. The overall weather shows a tendency towards pleasant, with shorter daylight hours marking the return of autumn. The city opens up to more pleasant, less humid conditions, leading to a myriad of outdoor possibilities. With the arrival of October, Wenzhou continues its path towards cooler autumn weather.

Temperature

The transition to September results in a modest reduction in average high-temperature, moving from a hot 31.9°C (89.4°F) in August to a moderately hot 28.8°C (83.8°F). An average nighttime temperature of 21.9°C (71.4°F) is recorded during September.

Heat index

The heat index value during September is evaluated at a hot 34°C (93.2°F). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.
In the scope of the heat index, its values resonate with shade and light wind conditions. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', takes into account both air temperature and humidity to illustrate what people actually feel. 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. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.

Humidity

In Wenzhou, China, the average relative humidity in September is 81%.

Rainfall

In Wenzhou, in September, during 13.4 rainfall days, 205mm (8.07") of precipitation is typically accumulated. Throughout the year, there are 174.7 rainfall days, and 1742mm (68.58") of precipitation is accumulated.

Sea temperature

In September, the average sea temperature is 26.9°C (80.4°F).
Note: In any water activity, temperatures between 25°C (77°F) and 29°C (84.2°F) are viewed as magnificent and exceptionally pleasant for prolonged enjoyment.

Daylight

The average length of the day in September in Wenzhou is 12h and 20min.
On the first day of September in Wenzhou, sunrise is at 05:35 and sunset at 18:18. On the last day of the month, sunrise is at 05:49 and sunset at 17:44 CST.

Sunshine

In September, the average sunshine in Wenzhou is 5.5h.

UV index

In Wenzhou, the average daily maximum UV index in September is 10. A UV Index reading of 8 to 10 represents a very high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: The UV index of 10 in September translates into these instructions:
Always stay safe. Unprotected skin and eyes can get damaged rapidly. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Apply liberally and reapply a broad-spectrum sunscreen of SPF 30+ every two hours, and promptly after any outdoor workout or a swim. Caution! The Sun's UV rays become stronger due to reflections from water and sand.