April weather forecast
Bangkok, Thailand

April distinguishes itself by hosting the most torrid conditions in Bangkok, Thailand throughout the year. This month witnesses the zenith of temperature, soaring up to 35.4°C (95.7°F), making it the warmest period in the city. Concurrently, precipitation accelerates sharply, attaining 91mm (3.58"), spread across six days of rainfall. These weather conditions create a unique blend of scorching heat and refreshing rain. With the end of the month, the city hints at a substantial rise in relative humidity, making way for a more cool atmosphere in May.

Temperature

Bangkok's temperature records reveal April as the warmest month, marked by average highs of 35.4°C (95.7°F) and lows of 26.9°C (80.4°F).

Heat index

In April, the average heat index is computed to be a blazing hot 53°C (127.4°F). Prudent: Heat cramps and heat exhaustion are likely. Heatstroke becomes imminent with sustained exertion.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', offers an insight into how hot it feels when we factor in moisture content. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.

Humidity

In Bangkok, the average relative humidity in April is 72%.

Rainfall

In Bangkok, in April, it is raining for 6 days, with typically 91mm (3.58") of accumulated precipitation. In Bangkok, Thailand, during the entire year, the rain falls for 128 days and collects up to 1648mm (64.88") of precipitation.

Sea temperature

In Bangkok, the average seawater temperature in April is 29.4°C (84.9°F).
Note: In water activities such as swimming and diving, temperatures from 25°C (77°F) to 29°C (84.2°F) are deemed highly pleasurable for extended periods without any unease.

Daylight

In April, the average length of the day is 12h and 26min.
On the first day of the month, sunrise is at 06:13 and sunset at 18:29. On the last day of April, sunrise is at 05:56 and sunset at 18:33 +07.

Sunshine

In April, the average sunshine is 8.6h.

UV index

February through September, with an average maximum UV index of 12, are months with the highest UV index. A UV Index reading of 11, and higher, represents an ultimate health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: A maximum daily UV index of 12 during April morphs into the following directions:
Practice all essential precautions. Protection against sun damage is crucial. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Apply generously and frequently a broad-spectrum SPF 30+ sunscreen every two hours, or immediately after swimming or any outdoor exercise. Beware! Reflections from sand and water can intensify the Sun's UV radiation.