September weather forecast
Lý Dương, Vietnam

September, the first month of the autumn in Lý Dương, is still a tropical month, with an average temperature fluctuating between 23.8°C (74.8°F) and 31.5°C (88.7°F).

Temperature

Lý Dương transitions into September recording an average high-temperature of a still hot 31.5°C (88.7°F), closely aligning with the preceding month's temperature. Throughout September nights, Lý Dương registers an average low-temperature of 23.8°C (74.8°F).

Heat index

The average heat index in September is evaluated at an extremely hot 42°C (107.6°F). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.
Be aware that heat index ratings are designed for shaded locations and minor breezes. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', embodies the combination of air temperature and moisture content to illustrate perceived heat. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly relevant to babies and toddlers. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

In Lý Dương, the average relative humidity in September is 79%.

Rainfall

In Lý Dương, in September, during 14.4 rainfall days, 37mm (1.46") of precipitation is typically accumulated. Throughout the year, there are 165.7 rainfall days, and 431mm (16.97") of precipitation is accumulated.

Daylight

In Lý Dương, the average length of the day in September is 12h and 16min.
On the first day of September in Lý Dương, sunrise is at 05:39 and sunset at 18:11. On the last day of the month, sunrise is at 05:46 and sunset at 17:44 +07.

Sunshine

In Lý Dương, 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 value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In September, an average UV index of 7 transforms into the following instructions:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.