April weather forecast
Tích Sơn, Vietnam

April in Tích Sơn, Vietnam, is a tropical spring month, with temperature in the range of an average high of 30.6°C (87.1°F) and an average low of 21.4°C (70.5°F).

Temperature

As April sets, the average high-temperature shows a slight increase, moving up from a moderately hot 26.8°C (80.2°F) in March to a hot 30.6°C (87.1°F). In the month of April, Tích Sơn witnesses a consistent average low-temperature of 21.4°C (70.5°F).

Heat index

During April, the heat index is estimated at a sweltering 38°C (100.4°F). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', shows a temperature sensation when both heat and moisture conditions are combined. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

In April, the average relative humidity is 76%.

Rainfall

In Tích Sơn, in April, during 20.3 rainfall days, 53mm (2.09") of precipitation is typically accumulated. In Tích Sơn, during the entire year, the rain falls for 236.6 days and collects up to 1444mm (56.85") of precipitation.

Daylight

In April, the average length of the day is 12h and 38min.
On the first day of the month, sunrise is at 05:50 and sunset at 18:12. On the last day of April, sunrise is at 05:27 and sunset at 18:22 +07.

Sunshine

In April, the average sunshine is 7.8h.

UV index

April through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: The daily high UV index of 7 in April translates into this advice:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.