September weather forecast
Phú Hộ, Vietnam

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

Temperature

Transitioning into September, Phú Hộ records an average high-temperature of a still tropical 30.9°C (87.6°F), almost identical to August's 31.9°C (89.4°F). Throughout the month of September, the average temperature dips to a moderately hot 23.2°C (73.8°F) at night.

Heat index

The heat index value during September is computed to be an extremely hot 42°C (107.6°F). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.
Heat index data is primarily for areas with shade and subjected to light winds. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is the outcome of merging air's temperature and its humidity metrics. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

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

Rainfall

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

Daylight

The average length of the day in September in Phú Hộ 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

In Phú Hộ, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 6 in September transforms into the following instructions:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.