July weather forecast
Hữu Lũng, Vietnam

July, the same as June, in Hữu Lũng, Vietnam, is another hot summer month, with an average temperature fluctuating between 33.3°C (91.9°F) and 25.8°C (78.4°F).

Temperature

The introduction of July notes a subtle temperature variation to a still tropical 33.3°C (91.9°F) from June's 34.3°C (93.7°F). An average low-temperature of 25.8°C (78.4°F) is anticipated throughout the nights during July.

Heat index

During July, the heat index is evaluated at a life-threatening hot 48°C (118.4°F). Be prepared: Heat cramps and heat exhaustion are probable. Continued activity may lead to heatstroke.
One should consider that heat index numbers are for shaded settings and light wind. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', measures the perceived warmth when incorporating the humidity present in the air. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. 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 extremely significant for babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. 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. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

The average relative humidity in July is 78%.

Rainfall

In July, the rain falls for 21.3 days. Throughout July, 61mm (2.4") of precipitation is accumulated. In Hữu Lũng, Vietnam, during the entire year, the rain falls for 166.7 days and collects up to 454mm (17.87") of precipitation.

Daylight

The average length of the day in July is 13h and 18min.
On the first day of the month, sunrise is at 05:15 and sunset at 18:41. On the last day of July, sunrise is at 05:27 and sunset at 18:34 +07.

Sunshine

In Hữu Lũng, the average sunshine in July is 10.1h.

UV index

The months with the highest UV index in Hữu Lũng are May through September, with an average maximum UV index of 7. A UV Index value 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 7 during July translates into the following directions:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.