September weather forecast
Lin Ma Hang, Hong Kong

September, the first month of the autumn in Lin Ma Hang, is still a tropical month, with an average temperature ranging between max 30.5°C (86.9°F) and min 25.9°C (78.6°F).

Temperature

Lin Ma Hang's shift into September is marked by a subtle change to a still hot 30.5°C (86.9°F) from August's 31.4°C (88.5°F) in temperature. The month of September shows a minor drop from daytime temperatures, generally recording a low average of 25.9°C (78.6°F).

Heat index

For September, the heat index is evaluated at a sweltering 38°C (100.4°F). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

The average relative humidity in September in Lin Ma Hang is 75%.

Rainfall

In Lin Ma Hang, Hong Kong, during September, the rain falls for 17.9 days and regularly aggregates up to 66mm (2.6") of precipitation. In Lin Ma Hang, during the entire year, the rain falls for 164.9 days and collects up to 548mm (21.57") of precipitation.

Daylight

In September, the average length of the day in Lin Ma Hang, Hong Kong, is 12h and 17min.
On the first day of the month, sunrise is at 06:05 and sunset at 18:40. On the last day of September, in Lin Ma Hang, sunrise is at 06:14 and sunset at 18:11 HKT.

Sunshine

In Lin Ma Hang, the average sunshine in September is 8.1h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: An average UV index of 7 in September transforms into this advice:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. 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. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.