September weather forecast
Meilan, China

The first month of the autumn, September, is also a hot month in Meilan, China, with temperature in the range of an average low of 26.1°C (79°F) and an average high of 30.5°C (86.9°F).

Temperature

With September's advent, Meilan, China, sees an average high-temperature of a still hot 30.5°C (86.9°F), subtly shifted from August's 31.5°C (88.7°F). September's average low-temperature is a moderately hot 26.1°C (79°F), reflecting a minor difference from the day's peak temperatures.

Heat index

The heat index value for September is evaluated at a fiery hot 39°C (102.2°F). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
Understand that the heat index values take into account shaded locations and mild winds. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.

Humidity

The average relative humidity in September is 80%.

Rainfall

In Meilan, in September, during 18.3 rainfall days, 115mm (4.53") of precipitation is typically accumulated. Throughout the year, there are 202.3 rainfall days, and 810mm (31.89") of precipitation is accumulated.

Daylight

In Meilan, the average length of the day in September is 12h and 16min.
On the first day of the month, sunrise is at 06:22 and sunset at 18:54. On the last day of September, sunrise is at 06:29 and sunset at 18:27 CST.

Sunshine

In Meilan, the average sunshine in September is 8.3h.

UV index

April through September, with an average maximum UV index of 7, are months with the highest UV index in Meilan. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: An average maximum UV index of 7 in September leads to these recommendations:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.