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
The initiation of September records an average high-temperature of a warm 29.6°C (85.3°F), displaying a near consistency with the previous month. Nighttime temperatures in Fung Shue Wo hover around an average low of 26.5°C (79.7°F) in September, a slight descent from daytime highs.Heat index
September's mean heat index is estimated at a sweltering 36°C (96.8°F). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.Given the heat index, its values are aligned with shaded sites and gentle winds. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', evaluates the perceived heat by adding the effect of moisture in the air. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.
Humidity
The average relative humidity in September is 77%.Rainfall
In Fung Shue Wo, during September, the rain falls for 22.7 days and regularly aggregates up to 155mm (6.1") of precipitation. Throughout the year, there are 224.5 rainfall days, and 1264mm (49.76") of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 17min.On the first day of September, 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 Fung Shue Wo, the average sunshine in September is 8.4h.UV index
May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 7 in September translates into these instructions:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. 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. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What is the average humidity in September?
How many days does it rain in September?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Fung Shue Wo have in September?
When is the highest UV index?
How high is the UV index in September?
Average temperature in September
Fung Shue Wo, Hong Kong
- Average high temperature in September: 29.6°C
The warmest month (with the highest average high temperature) is August (30.5°C).
The month with the lowest average high temperature is January (18.5°C).
- Average low temperature in September: 26.5°C
The month with the highest average low temperature is August (27.7°C).
The coldest month (with the lowest average low temperature) is January (15°C).
Average pressure in September
Fung Shue Wo, Hong Kong
- Average pressure in September: 1008.3mbar
The month with the highest atmospheric pressure is January (1020.3mbar).
The month with the lowest atmospheric pressure is August (1004.8mbar).
Average wind speed in September
Fung Shue Wo, Hong Kong
- Average wind speed in September: 13.5km/h
The windiest month (with the highest average wind speed) is December (16km/h).
The calmest month (with the lowest average wind speed) is August (12.4km/h).
Average humidity in September
Fung Shue Wo, Hong Kong
- Average humidity in September: 77%
The month with the highest relative humidity is May (84%).
The month with the lowest relative humidity is December (70%).
Average rainfall in September
Fung Shue Wo, Hong Kong
- Average rainfall in September: 155mm
The wettest month (with the highest rainfall) is August (223mm).
The driest month (with the least rainfall) is December (23mm).
Average rainfall days in September
Fung Shue Wo, Hong Kong
- Average rainfall days in September: 22.7 days
The month with the highest number of rainy days is July (26.8 days).
The month with the least rainy days is December (11.2 days).
Average daylight in September /
Average sunshine in September
Fung Shue Wo, 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 2min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is March (Average sunshine: 5h and 18min).
Average sunshine days in September
Fung Shue Wo, Hong Kong
- Average sunshine days in September: 5.8 days
The month with the most sunshine days is December (16.9 days).
The month with the least sunshine days is July (3.1 days).
Average UV index in September
Fung Shue Wo, 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 month with the lowest UV index is January (UV index 4).
Average cloud cover in September
Fung Shue Wo, Hong Kong
- Average cloud cover in September: 35
The month with the most cloud cover is March (Cloud cover 61).
The months with the least cloud cover are September and October (Cloud cover 35).
Average visibility in September
Fung Shue Wo, Hong Kong
- Average visibility in September: 10km
The months with the highest visibility are September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July and August (9km).
