Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
In September, the average high-temperature registers at a still tropical 30°C (86°F), nearly identical to August's 31.3°C (88.3°F). Chai Wan Kok sustains a near constant temperature throughout September, with nighttime averages of 26.3°C (79.3°F).Heat index
The heat index in September is evaluated at a torrid 37°C (98.6°F). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.In reference to the heat index, it's for places in shade and with a slight wind. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. When body heat isn't effectively managed, risks of dehydration and overheating amplify.
Humidity
The average relative humidity in September in Chai Wan Kok is 76%.Rainfall
In Chai Wan Kok, during September, the rain falls for 19.8 days and regularly aggregates up to 94mm (3.7") of precipitation. In Chai Wan Kok, during the entire year, the rain falls for 187.1 days and collects up to 771mm (30.35") of precipitation.Daylight
The average length of the day in September in Chai Wan Kok, Hong Kong, is 12h and 17min.On the first day of September in Chai Wan Kok, sunrise is at 06:06 and sunset at 18:40. On the last day of the month, sunrise is at 06:14 and sunset at 18:12 HKT.
Sunshine
In Chai Wan Kok, the average sunshine in September is 8.2h.UV index
The months with the highest UV index in Chai Wan Kok are May through September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 7 during September leads to these advisories:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in Chai Wan Kok in September?
What is the average humidity in September in Chai Wan Kok?
How much does it rain in Chai Wan Kok in September?
What is the average length of the day in September in Chai Wan Kok?
What time are sunrise and sunset in September in Chai Wan Kok?
How many hours of sunshine does Chai Wan Kok have in September?
When is the highest UV index in Chai Wan Kok?
What is the UV index reading in September in Chai Wan Kok?
Average temperature in September
Chai Wan Kok, Hong Kong
- Average high temperature in September: 30°C
The warmest month (with the highest average high temperature) is August (31.3°C).
The month with the lowest average high temperature is January (18.8°C).
- Average low temperature in September: 26.3°C
The months with the highest average low temperature are July and August (27.3°C).
The coldest month (with the lowest average low temperature) is January (14.3°C).
Average pressure in September
Chai Wan Kok, Hong Kong
- Average pressure in September: 1008.4mbar
The month with the highest atmospheric pressure is January (1020.4mbar).
The month with the lowest atmospheric pressure is August (1004.8mbar).
Average wind speed in September
Chai Wan Kok, Hong Kong
- Average wind speed in September: 11.4km/h
The windiest month (with the highest average wind speed) is July (12.9km/h).
The calmest month (with the lowest average wind speed) is August (10.6km/h).
Average humidity in September
Chai Wan Kok, Hong Kong
- Average humidity in September: 76%
The month with the highest relative humidity is May (83%).
The month with the lowest relative humidity is December (68%).
Average rainfall in September
Chai Wan Kok, Hong Kong
- Average rainfall in September: 94mm
The wettest month (with the highest rainfall) is August (141mm).
The driest months (with the least rainfall) are January and December (11mm).
Average rainfall days in September
Chai Wan Kok, Hong Kong
- Average rainfall days in September: 19.8 days
The month with the highest number of rainy days is July (25.1 days).
The month with the least rainy days is December (7.9 days).
Average daylight in September /
Average sunshine in September
Chai Wan Kok, Hong Kong
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 13h and 30min).
The month with the shortest days is December (Average daylight: 10h and 48min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is March (Average sunshine: 5h and 6min).
Average sunshine days in September
Chai Wan Kok, Hong Kong
- Average sunshine days in September: 7.5 days
The month with the most sunshine days is December (21.1 days).
The months with the least sunshine days are July and August (5 days).
Average UV index in September
Chai Wan Kok, Hong Kong
- Average UV index in September: 7
The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January and December (UV index 4).
Average cloud cover in September
Chai Wan Kok, Hong Kong
- Average cloud cover in September: 37
The month with the most cloud cover is March (Cloud cover 61).
The month with the least cloud cover is October (Cloud cover 36).
Average visibility in September
Chai Wan Kok, Hong Kong
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are April and May (9km).
