April weather forecast
Thai Nguyen, Vietnam

The weather in April typically has increased warmth with the arrival of summer. The month witnesses a significant leap in rainfall with up to 50mm (1.97") being recorded. Sunshine hours are on the rise, providing an inviting climate to enjoy the city's offerings. Humidity levels are quite high, which is a regular phenomenon during this period. The speed of wind takes a minor dip, creating calm weather conditions in Thai Nguyen.

Temperature

With the onset of April, Thai Nguyen observes a minor temperature ascent, with the average high-temperature adjusting from March's 25.8°C (78.4°F) to a still warm 29.4°C (84.9°F). In Thai Nguyen, in April, the average low-temperature is a pleasant 20.8°C (69.4°F).

Heat index

In April, the heat index is appraised at a sweltering 36°C (96.8°F). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. 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 'felt air temperature' or 'feels like', is the result of factoring in humidity to the air temperature, indicating perceived warmth. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial 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.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

In April, the average relative humidity in Thai Nguyen is 79%.

Rainfall

In Thai Nguyen, during April, the rain falls for 20.1 days and regularly aggregates up to 50mm (1.97") of precipitation. Throughout the year, in Thai Nguyen, there are 236.7 rainfall days, and 1204mm (47.4") of precipitation is accumulated.

Daylight

The average length of the day in April is 12h and 39min.
On the first day of the month, sunrise is at 05:49 and sunset at 18:11. On the last day of April, sunrise is at 05:25 and sunset at 18:21 +07.

Sunshine

In Thai Nguyen, the average sunshine in April is 6.9h.

UV index

In Thai Nguyen, the average daily maximum UV index in April is 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum high UV index of 6 in April translates into the following recommendations:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. A hat with a broad brim is indispensable, filtering out up to half of UV rays.