September weather forecast
Hà Hiệu, Vietnam

September, the first month of the autumn in Hà Hiệu, is also a moderately hot month, with temperature in the range of an average low of 20.6°C (69.1°F) and an average high of 29.1°C (84.4°F).

Temperature

Stepping into September, Hà Hiệu records an average high-temperature of a warm 29.1°C (84.4°F), almost consistent with August. In September, the recorded average low-temperature is a pleasant 20.6°C (69.1°F).

Heat index

The heat index in September is estimated at a very hot 36°C (96.8°F). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', ties air temperature with relative humidity to produce the perceived temperature sensation. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

In September, the average relative humidity is 85%.

Rainfall

In Hà Hiệu, during September, the rain falls for 23.6 days and regularly aggregates up to 129mm (5.08") of precipitation. Throughout the year, there are 248.4 rainfall days, and 1317mm (51.85") of precipitation is accumulated.

Daylight

In Hà Hiệu, the average length of the day in September is 12h and 17min.
On the first day of September, sunrise is at 05:39 and sunset at 18:13. On the last day of the month, sunrise is at 05:47 and sunset at 17:45 +07.

Sunshine

The average sunshine in September in Hà Hiệu is 7.7h.

UV index

April through September, with an average maximum UV index of 6, are months with the highest UV index in Hà Hiệu. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 6 during September translates into the following directions:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.