September weather forecastBãi Cháy, Vietnam
September
Weather in September
The first month of the autumn, September, is still a hot month in Bãi Cháy, Vietnam, with an average temperature varying between 24.6°C (76.3°F) and 30.5°C (86.9°F).Temperature
With the transition into September, Bãi Cháy notes an average high-temperature of a still hot 30.5°C (86.9°F), closely resembling August. Bãi Cháy experiences an average low-temperature of 24.6°C (76.3°F) in the month of September.Heat index
The heat index in September is estimated at a torrid 39°C (102.2°F). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.It is essential to grasp that the heat index's numbers are for shade and light wind settings. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', reflects the feeling of heat when considering both air temperature and humidity. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. 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 are quite important for babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.
Humidity
In Bãi Cháy, the average relative humidity in September is 78%.Rainfall
In Bãi Cháy, during September, the rain falls for 18.5 days and regularly aggregates up to 134mm (5.28") of precipitation. Throughout the year, there are 214.5 rainfall days, and 1208mm (47.56") of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 16min.On the first day of September, sunrise is at 05:35 and sunset at 18:07. On the last day of the month, sunrise is at 05:42 and sunset at 17:40 +07.
Sunshine
In Bãi Cháy, the average sunshine in September is 9h.UV index
May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.Note: A maximum UV index of 7 in September translates into the following recommendations:
Stay clear of intense sun exposure. Solar protection is of utmost significance. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bãi Cháy, Vietnam
- Average high temperature in September: 30.5°C
The warmest month (with the highest average high temperature) is June (31.2°C).
The month with the lowest average high temperature is January (19.2°C).
- Average low temperature in September: 24.6°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 (14.1°C).
Average pressure in September
Bãi Cháy, Vietnam
- Average pressure in September: 1007.8mbar
The month with the highest atmospheric pressure is January (1019.3mbar).
The month with the lowest atmospheric pressure is June (1002.7mbar).
Average wind speed in September
Bãi Cháy, Vietnam
- Average wind speed in September: 8.9km/h
The windiest month (with the highest average wind speed) is June (10.5km/h).
The calmest month (with the lowest average wind speed) is August (8.4km/h).
Average humidity in September
Bãi Cháy, Vietnam
- Average humidity in September: 78%
The month with the highest relative humidity is April (84%).
The month with the lowest relative humidity is December (73%).
Average rainfall in September
Bãi Cháy, Vietnam
- Average rainfall in September: 134mm
The wettest month (with the highest rainfall) is August (256mm).
The driest month (with the least rainfall) is February (23mm).
Average rainfall days in September
Bãi Cháy, Vietnam
- Average rainfall days in September: 18.5 days
The month with the highest number of rainy days is July (26.8 days).
The month with the least rainy days is December (11.4 days).
Average daylight in September /
Average sunshine in September
Bãi Cháy, 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 0min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in September
Bãi Cháy, Vietnam
- Average sunshine days in September: 8.9 days
The month with the most sunshine days is December (16.9 days).
The month with the least sunshine days is July (3.3 days).
Average UV index in September
Bãi Cháy, 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
Bãi Cháy, Vietnam
- Average cloud cover in September: 35
The month with the most cloud cover is March (Cloud cover 68).
The month with the least cloud cover is September (Cloud cover 35).
Average visibility in September
Bãi Cháy, Vietnam
- Average visibility in September: 10km
The months with the highest visibility are September and October (10km).
The month with the lowest visibility is April (8km).
