September weather forecast
Lai Hạ, Vietnam

September, the first month of the autumn in Lai Hạ, is still a hot month, with temperature in the range of an average low of 23.9°C (75°F) and an average high of 31.5°C (88.7°F).

Temperature

Lai Hạ records an average high-temperature of a still hot 31.5°C (88.7°F) in September, closely mirroring the climate of the previous month. In September, the recorded average low-temperature is a warm 23.9°C (75°F).

Heat index

In September, the heat index is evaluated at an extremely hot 43°C (109.4°F). Be careful: Heat exhaustion and heat cramps are probable. Heatstroke may result from extended activity.
Realize that the values for the heat index are set for shaded places and light winds. An exposure to direct sunlight may lift the heat index values 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 individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

In Lai Hạ, the average relative humidity in September is 80%.

Rainfall

In Lai Hạ, during September, the rain falls for 15.4 days and regularly aggregates up to 60mm (2.36") of precipitation. In Lai Hạ, during the entire year, the rain falls for 166.6 days and collects up to 454mm (17.87") of precipitation.

Daylight

In Lai Hạ, Vietnam, the average length of the day in September is 12h and 16min.
On the first day of September, sunrise is at 05:38 and sunset at 18:11. On the last day of the month, sunrise is at 05:45 and sunset at 17:43 +07.

Sunshine

In September, the average sunshine is 9h.

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 hazard from unsafe exposure to UV radiation for the average person.
Note: In September, the maximum UV index of 7 transforms into these recommendations:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.