September weather forecast
Phú Hộ, Vietnam

September, the first month of the autumn in Phú Hộ, is also a hot month, with an average temperature varying between 30.9°C (87.6°F) and 23.2°C (73.8°F).

Temperature

The advent of September denotes an average high-temperature of a still hot 30.9°C (87.6°F), subtly different from August's 31.9°C (89.4°F). In Phú Hộ, the average nighttime temperature during September is a warm 23.2°C (73.8°F).

Heat index

The heat index in September is evaluated at a scorching 42°C (107.6°F). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.
The metrics for the heat index are tailored for both shady environments and light winds. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
The primary way humans combat excessive warmth is by perspiring, letting sweat evaporate and cool the body. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.

Humidity

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

Rainfall

In Phú Hộ, during September, the rain falls for 22.4 days and regularly aggregates up to 204mm (8.03") of precipitation. Throughout the year, there are 236.6 rainfall days, and 1444mm (56.85") of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 16min.
On the first day of the month, sunrise is at 05:42 and sunset at 18:15. On the last day of September, in Phú Hộ, sunrise is at 05:49 and sunset at 17:47 +07.

Sunshine

In Phú Hộ, 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 hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: In September, the UV index of 6 transforms into the following advice:
Deflect overexposure. Sun protection is a necessity. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.