September weather forecast
Chát Cầu, Vietnam

September, the first month of the autumn in Chát Cầu, is still a hot month, with an average temperature varying between 31.7°C (89.1°F) and 24.2°C (75.6°F).

Temperature

The arrival of September brings an average high-temperature of a still tropical 31.7°C (89.1°F), nearly identical to August's 33.1°C (91.6°F). During September nights, Chát Cầu witnesses a consistent average temperature of 24.2°C (75.6°F).

Heat index

Throughout September, the heat index is estimated at a scorching 43°C (109.4°F). Be cautious: Heat exhaustion along with heat cramps are predicted. Heatstroke is a possible consequence of continuous physical effort.
Understand that the heat index values take into account shaded locations and mild winds. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
The natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

August and September, with an average relative humidity of 80%, are the most humid months.

Rainfall

In Chát Cầu, during September, the rain falls for 18.5 days and regularly aggregates up to 73mm (2.87") of precipitation. In Chát Cầu, during the entire year, the rain falls for 181.2 days and collects up to 595mm (23.43") of precipitation.

Daylight

The average length of the day in September is 12h and 16min.
On the first day of September, sunrise is at 05:40 and sunset at 18:12. On the last day of the month, sunrise is at 05:47 and sunset at 17:45 +07.

Sunshine

The average sunshine in September is 8.5h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: A maximum daily UV index of 7 during September morphs into the following directions:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.