August weather forecast
Hai Phong, Vietnam

August ushers in the wettest period of the year in Hai Phong. Despite the decrease in temperature from the peak in July, the weather remains hot and humid. In addition, the short bursts of rainfall seen in July become more frequent and intense, leading to higher relative humidity. The rain reaches its maximum level from 312mm (12.28") in July to 473mm (18.62") in August. August signals the closure of summer with its wet and stormy weather conditions interspersed with warm and sunny intervals.

Temperature

The shift into August uncovers an average high-temperature of a still tropical 31.5°C (88.7°F), subtly different from the previous month. Throughout the nights in August, an average low-temperature of 25.3°C (77.5°F) is noted in Hai Phong.

Heat index

The heat index value for August is evaluated at a blazing hot 46°C (114.8°F). Vigilance: Heat cramps and heat exhaustion are likely. The likelihood of heatstroke increases with continued activity.
Heat index evaluations are typically in the context of light winds and shaded environments. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', blends air temperature and moisture content to represent the felt temperature to humans. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
The primary way humans combat excessive warmth is by perspiring, letting sweat evaporate and cool the body. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

The average relative humidity in August in Hai Phong is 88%.

Rainfall

August is the month with the most rainfall in Hai Phong, Vietnam. Rain falls for 15.3 days and accumulates 473mm (18.62") of precipitation.

Sea temperature

In August, the average sea temperature is 30.2°C (86.4°F).
Note: Experiencing water temperatures over 30°C (86°F) might rob swimmers of the refreshing sensation they seek.

Daylight

In Hai Phong, Vietnam, the average length of the day in August is 12h and 50min.
On the first day of the month, sunrise is at 05:27 and sunset at 18:31. On the last day of August, in Hai Phong, sunrise is at 05:36 and sunset at 18:10 +07.

Sunshine

In Hai Phong, the average sunshine in August is 5.7h.

UV index

The months with the highest UV index in Hai Phong are March through August, with an average maximum UV index of 12. A UV Index value of 11, and more, symbolizes an extreme threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: During August, 12 as the daily maximum UV index converts into the following advice:
Utilize all necessary safety measures, unprotected skin could suffer burns instantly. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Every two hours, apply and reapply an SPF 30+ broad-spectrum sunscreen, especially after swimming or engaging in outdoor activities. Be careful! The Sun's UV radiation is accentuated by reflecting off sand and water.