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
As Cư Lễ transitions from August to September, the average high-temperatures adjust to a still tropical 30.3°C (86.5°F), nearly the same as the previous 31.5°C (88.7°F). Throughout September, an average low-temperature of 24.8°C (76.6°F) is experienced.Heat index
In September, the average heat index is appraised at a torrid 39°C (102.2°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', quantifies the warmth felt when relative humidity is considered. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
One of the main methods the human body employs to cool down is by perspiring, as this process allows sweat to evaporate and remove excess heat. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.
Humidity
The average relative humidity in September is 80%.Rainfall
In September, the rain falls for 24.3 days. Throughout September, 171mm (6.73") of precipitation is accumulated. Throughout the year, there are 245.1 rainfall days, and 1508mm (59.37") of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 17min.On the first day of the month, sunrise is at 05:38 and sunset at 18:12. On the last day of September, sunrise is at 05:46 and sunset at 17:44 +07.
Sunshine
In Cư Lễ, the average sunshine in September is 8.6h.UV index
April through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In September, the maximum UV index of 7 suggests these recommendations:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What is the average humidity in September?
How much does it rain in September?
How many hours of daylight does Cư Lễ have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the month with the highest UV index?
What is the UV index reading in September?
Average temperature in September
Cư Lễ, Vietnam
- Average high temperature in September: 30.3°C
The warmest months (with the highest average high temperature) are May and June (31.9°C).
The month with the lowest average high temperature is January (23.3°C).
- Average low temperature in September: 24.8°C
The month with the highest average low temperature is June (26°C).
The coldest month (with the lowest average low temperature) is January (19.9°C).
Average pressure in September
Cư Lễ, Vietnam
- Average pressure in September: 1007.8mbar
The month with the highest atmospheric pressure is January (1016mbar).
The month with the lowest atmospheric pressure is July (1005.8mbar).
Average wind speed in September
Cư Lễ, Vietnam
- Average wind speed in September: 9.2km/h
The windiest month (with the highest average wind speed) is December (13.4km/h).
The calmest month (with the lowest average wind speed) is August (8.4km/h).
Average humidity in September
Cư Lễ, Vietnam
- Average humidity in September: 80%
The months with the highest relative humidity are January, November and December (86%).
The month with the lowest relative humidity is June (75%).
Average rainfall in September
Cư Lễ, Vietnam
- Average rainfall in September: 171mm
The wettest month (with the highest rainfall) is November (365mm).
The driest month (with the least rainfall) is May (39mm).
Average rainfall days in September
Cư Lễ, Vietnam
- Average rainfall days in September: 24.3 days
The month with the highest number of rainy days is December (25.2 days).
The month with the least rainy days is February (13.6 days).
Average daylight in September /
Average sunshine in September
Cư Lễ, Vietnam
- 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 4min
The months with the most sunshine are May and June (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 3h and 36min).
Average sunshine days in September
Cư Lễ, Vietnam
- Average sunshine days in September: 3.8 days
The month with the most sunshine days is March (13.4 days).
The months with the least sunshine days are October and November (3.7 days).
Average UV index in September
Cư Lễ, Vietnam
- Average UV index in September: 7
The months with the highest UV index are April, May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, November and December (UV index 5).
Average cloud cover in September
Cư Lễ, Vietnam
- Average cloud cover in September: 36
The month with the most cloud cover is December (Cloud cover 69).
The month with the least cloud cover is May (Cloud cover 25).
Average visibility in September
Cư Lễ, Vietnam
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August and September (10km).
The months with the lowest visibility are January, October, November and December (9km).
