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
Weather in September
Temperature
Lý Dương commences September with an average high-temperature of a still hot 31.5°C (88.7°F), maintaining a close resemblance to the previous month. Lý Dương experiences an average nighttime temperature of 23.8°C (74.8°F) in the month of September.Heat index
The heat index in September is estimated at a blistering 42°C (107.6°F). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.It is emphasized that the heat index's values are meant for shaded zones with mild winds. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', quantifies the warmth felt when relative humidity is considered. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. The body is at risk of dehydration and related complications when it fails to shed excessive heat.
Humidity
The average relative humidity in September is 79%.Rainfall
In Lý Dương, in September, it is raining for 14.4 days, with typically 37mm (1.46") of accumulated precipitation. In Lý Dương, during the entire year, the rain falls for 165.7 days and collects up to 431mm (16.97") of precipitation.Daylight
In Lý Dương, the average length of the day in September is 12h and 16min.On the first day of the month, sunrise is at 05:39 and sunset at 18:11. On the last day of September, sunrise is at 05:46 and sunset at 17:44 +07.
Sunshine
The average sunshine in September is 9.2h.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.Note: A typical high UV index of 7 in September suggests the following recommendations:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
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 many days does it rain in September?
What is the average length of the day in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What are the months with the highest UV index?
How high is the UV index in September?
Average temperature in September
Lý Dương, Vietnam
- Average high temperature in September: 31.5°C
The warmest month (with the highest average high temperature) is June (34.3°C).
The month with the lowest average high temperature is January (19.9°C).
- Average low temperature in September: 23.8°C
The month with the highest average low temperature is June (26.3°C).
The coldest month (with the lowest average low temperature) is January (13.8°C).
Average pressure in September
Lý Dương, Vietnam
- Average pressure in September: 1008.4mbar
The month with the highest atmospheric pressure is January (1019.4mbar).
The month with the lowest atmospheric pressure is June (1002.8mbar).
Average wind speed in September
Lý Dương, Vietnam
- Average wind speed in September: 7.5km/h
The windiest month (with the highest average wind speed) is March (10.1km/h).
The calmest month (with the lowest average wind speed) is August (7.4km/h).
Average humidity in September
Lý Dương, Vietnam
- Average humidity in September: 79%
The month with the highest relative humidity is August (81%).
The month with the lowest relative humidity is December (69%).
Average rainfall in September
Lý Dương, Vietnam
- Average rainfall in September: 37mm
The wettest month (with the highest rainfall) is August (82mm).
The driest month (with the least rainfall) is February (11mm).
Average rainfall days in September
Lý Dương, Vietnam
- Average rainfall days in September: 14.4 days
The month with the highest number of rainy days is July (21.3 days).
The month with the least rainy days is November (8.3 days).
Average daylight in September /
Average sunshine in September
Lý Dương, Vietnam
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 54min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in September
Lý Dương, Vietnam
- Average sunshine days in September: 13.6 days
The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is July (8.9 days).
Average UV index in September
Lý Dương, Vietnam
- 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
Lý Dương, Vietnam
- Average cloud cover in September: 37
The month with the most cloud cover is March (Cloud cover 65).
The month with the least cloud cover is September (Cloud cover 37).
Average visibility in September
Lý Dương, Vietnam
- Average visibility in September: 9km
The months with the highest visibility are June, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, July, August and September (9km).
Lý Dương, Vietnam
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