September weather forecast
Yên Bồ, Vietnam

The first month of the autumn, September, is still a tropical month in Yên Bồ, Vietnam, with an average temperature varying between 23.2°C (73.8°F) and 30.9°C (87.6°F).

Temperature

August's transformation into September witnesses an average high-temperature of a still hot 30.9°C (87.6°F), noting a minor change from the preceding month. Yên Bồ experiences an average temperature drop to a moderately hot 23.2°C (73.8°F) during September nights.

Heat index

The heat index value during September is calculated to be a scorching 42°C (107.6°F). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a metric representing the sensation of warmth when air temperature and moisture come together. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

The months with the highest humidity are August and September, with an average relative humidity of 83%.

Rainfall

In Yên Bồ, in September, it is raining for 22.4 days, with typically 204mm (8.03") of accumulated precipitation. In Yên Bồ, during the entire year, the rain falls for 236.6 days and collects up to 1444mm (56.85") of precipitation.

Daylight

In September, the average length of the day is 12h and 16min.
On the first day of September, sunrise is at 05:42 and sunset at 18:14. On the last day of the month, sunrise is at 05:49 and sunset at 17:47 +07.

Sunshine

In Yên Bồ, the average sunshine in September is 8.3h.

UV index

The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: In September, an average UV index of 6 transforms into the following instructions:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.