September weather forecastLâm Hải, Vietnam
September
Weather in September
The first month of the autumn, September, is still a hot month in Lâm Hải, Vietnam, with an average temperature ranging between max 30.9°C (87.6°F) and min 25.4°C (77.7°F).Temperature
Lâm Hải in September witnesses an average high-temperature of a still tropical 30.9°C (87.6°F), indicating a slight variation from August's 31.8°C (89.2°F). In September, the temperature in Lâm Hải drops to an average of 25.4°C (77.7°F) at night.Heat index
Throughout September, the heat index is evaluated at a scorching 40°C (104°F). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', takes into account both air temperature and humidity to illustrate what people actually feel. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Rising body temperatures due to excess heat retention could signify impending heat disorders.
Humidity
In Lâm Hải, the average relative humidity in September is 78%.Rainfall
In September, in Lâm Hải, the rain falls for 22.6 days. Throughout September, 165mm (6.5") of precipitation is accumulated. In Lâm Hải, during the entire year, the rain falls for 234.9 days and collects up to 1142mm (44.96") of precipitation.Snowfall
September is the only month when snow falls. The month with the most snowfall days is September, when snow falls for 0.1 days.Daylight
The average length of the day in September is 12h and 16min.On the first day of the month, sunrise is at 05:37 and sunset at 18:09. On the last day of September, sunrise is at 05:44 and sunset at 17:42 +07.
Sunshine
In September, the average sunshine is 9.2h.UV index
The months with the highest UV index in Lâm Hải are May through September, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The daily high UV index of 7 in September translates into this advice:
Guard against overexposure. Protection from sun-induced harm is essential. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lâm Hải, Vietnam
- Average high temperature in September: 30.9°C
The warmest month (with the highest average high temperature) is June (33.3°C).
The month with the lowest average high temperature is January (19.9°C).
- Average low temperature in September: 25.4°C
The month with the highest average low temperature is June (27.3°C).
The coldest month (with the lowest average low temperature) is January (15.3°C).
Average pressure in September
Lâm Hải, Vietnam
- Average pressure in September: 1007.9mbar
The month with the highest atmospheric pressure is January (1019.1mbar).
The month with the lowest atmospheric pressure is June (1002.6mbar).
Average wind speed in September
Lâm Hải, Vietnam
- Average wind speed in September: 10.2km/h
The windiest month (with the highest average wind speed) is June (13.4km/h).
The calmest month (with the lowest average wind speed) is August (10km/h).
Average humidity in September
Lâm Hải, Vietnam
- Average humidity in September: 78%
The month with the highest relative humidity is April (82%).
The month with the lowest relative humidity is December (71%).
Average rainfall in September
Lâm Hải, Vietnam
- Average rainfall in September: 165mm
The wettest month (with the highest rainfall) is August (251mm).
The driest month (with the least rainfall) is February (22mm).
Average rainfall days in September
Lâm Hải, Vietnam
- Average rainfall days in September: 22.6 days
The month with the highest number of rainy days is July (28.5 days).
The month with the least rainy days is December (12.4 days).
Average snowfall days in September
Lâm Hải, Vietnam
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is September (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Lâm Hải, Vietnam
- Average daylight in September: 12h and 18min
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 12min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in September
Lâm Hải, Vietnam
- Average sunshine days in September: 5.3 days
The month with the most sunshine days is December (15.1 days).
The month with the least sunshine days is July (1.8 days).
Average UV index in September
Lâm Hải, 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 month with the lowest UV index is December (UV index 4).
Average cloud cover in September
Lâm Hải, Vietnam
- Average cloud cover in September: 34
The month with the most cloud cover is March (Cloud cover 66).
The month with the least cloud cover is September (Cloud cover 34).
Average visibility in September
Lâm Hải, Vietnam
- Average visibility in September: 10km
The months with the highest visibility are June, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, July and August (9km).
