September weather forecast
Gulangyu, China

September, the first month of the autumn in Gulangyu, is still a hot month, with an average temperature fluctuating between 24.3°C (75.7°F) and 30.2°C (86.4°F).

Temperature

The shift into September finds Gulangyu at an average high-temperature of a still hot 30.2°C (86.4°F), closely comparable to August's conditions. An average low-temperature of 24.3°C (75.7°F) is observed in Gulangyu during the September nights.

Heat index

The average heat index in September is estimated at a torrid 38°C (100.4°F). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.
Bear in mind that the heat index values are determined for shaded areas and light breezes. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', shows a temperature sensation when both heat and moisture conditions are combined. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

In Gulangyu, the average relative humidity in September is 78%.

Rainfall

In Gulangyu, in September, it is raining for 15.1 days, with typically 90mm (3.54") of accumulated precipitation. In Gulangyu, during the entire year, the rain falls for 160.8 days and collects up to 891mm (35.08") of precipitation.

Daylight

The average length of the day in September in Gulangyu, China, is 12h and 18min.
On the first day of the month, sunrise is at 05:49 and sunset at 18:26. On the last day of September, in Gulangyu, China, sunrise is at 05:59 and sunset at 17:55 CST.

Sunshine

The average sunshine in September is 9.7h.

UV index

The months with the highest UV index are June through September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index of 7 during September translates into the following directions:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.