April weather forecast
Udon Thani, Thailand

As Udon Thani steps into April, the weather becomes significantly hotter, touching the year's highest temperatures. Accordingly, days turn hotter, while nights remain warm, indicative of the peak dry season. Weather transitions are marked by heavy rainfall, hitting a yearly high at 103mm (4.06"), which is a sharp contrast to March's rainfall. This sharp rise in rainfall holds up well with the steadily high humidity, which counters the intense heat during this period. The April weather in Udon Thani, therefore, comprises high temperatures, extreme rainfall, and relatively high humidity.

Temperature

April is the month that records the highest temperatures, with averages ranging from a high of 36.3°C (97.3°F) to a low of 24.4°C (75.9°F).

Heat index

For most parts of April, the heat index is calculated to be a life-threatening hot 51°C (123.8°F). Attention: Heat exhaustion and heat cramps are quite likely. Heatstroke becomes a risk with continued exertion.
Always consider that heat index estimations are for light winds and places in the shade. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

In April, the average relative humidity is 63%.

Rainfall

In April, in Udon Thani, the rain falls for 8 days. Throughout April, 103mm (4.06") of precipitation is accumulated. In Udon Thani, during the entire year, the rain falls for 118 days and collects up to 1241mm (48.86") of precipitation.

Daylight

The average length of the day in April in Udon Thani, Thailand, is 12h and 32min.
On the first day of April, sunrise is at 06:03 and sunset at 18:22. On the last day of the month, sunrise is at 05:43 and sunset at 18:28 +07.

Sunshine

The average sunshine in April is 8h.

UV index

The months with the highest UV index in Udon Thani are March through September, with an average maximum UV index of 12. A UV Index estimate of 11, and higher, represents an excessive health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In April, the UV index of 12 transforms into the following advice:
Carry out all important precautions, unprotected skin could get burns in no time. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Directly after swimming or an outdoor workout, generously apply and reapply a broad-spectrum SPF 30+ sunscreen.