April weather forecast
Rayong, Thailand

Drawing closer to the peak of the summer, April's weather is characterized by consistently high temperatures. True to tropical style, this month brings longer daylight hours and pronounced balmy nights. The average rainfall continues to rise significantly from the previous month, recorded at 82mm (3.23"). For those looking to enjoy the sea, conditions remain conducive for a host of water activities.

Temperature

Rayong's warmest month, April, generally records average temperatures ranging from a high of 34.3°C (93.7°F) to a low of 27.1°C (80.8°F).

Heat index

April's mean heat index is estimated at a burning hot 52°C (125.6°F). Warning: Heat cramps and heat exhaustion are anticipated. Heatstroke is a risk with ongoing activity.
Heat index values are typically calculated for conditions of shade and a light breeze. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', comes about by integrating the temperature readings with the humidity levels. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

The average relative humidity in April in Rayong is 77%.

Rainfall

In Rayong, in April, during 6 rainfall days, 82mm (3.23") of precipitation is typically accumulated. In Rayong, during the entire year, the rain falls for 111 days and collects up to 1383mm (54.45") of precipitation.

Sea temperature

In April, the average sea temperature in Rayong is 29.8°C (85.6°F).
Note: Water temperatures between 25°C (77°F) and 29°C (84.2°F) are regarded as very warm, ensuring all water activities are pleasurable for extended periods without feeling uneasy.

Daylight

In April, the average length of the day is 12h and 25min.
On the first day of the month, sunrise is at 06:11 and sunset at 18:26. On the last day of April, in Rayong, sunrise is at 05:55 and sunset at 18:30 +07.