April weather forecast
Singapore, Singapore

The weather in April continues Singapore's tropical trend, with relatively steady conditions. The minimal increase in rainfall makes it slightly wetter than March without causing any significant disruption. As the temperature continues its incremental increase, there's a simultaneous rise in sea temperatures, accounting for warmer swimming conditions. The shift in weather patterns from March to April is almost imperceptible, keeping the city's vibrant spirit untouched. As such, April remains a suitable period for leisurely exploration of the city-state.

Temperature

April, recording an average high temperature of 31.7°C (89.1°F) and a low temperature of 24.4°C (75.9°F), is Singapore's warmest month.

Heat index

The average heat index in April is computed to be a life-threatening hot 45°C (113°F). On guard: Heat exhaustion and heat cramps are predicted. Heatstroke is a potential hazard with continuous physical effort.
Heat index specifics point out values are for conditions of shade and a slight breeze. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', joins air temperature with relative humidity to produce a temperature perception for humans. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

The average relative humidity in April in Singapore is 84.8%.

Rainfall

In Singapore, during April, the rain falls for 15 days and regularly aggregates up to 179mm (7.05") of precipitation. In Singapore, Singapore, during the entire year, the rain falls for 178 days and collects up to 2343mm (92.24") of precipitation.

Sea temperature

In Singapore, the average seawater temperature in April is 29.7°C (85.5°F).
Note: Ideal surface water temperatures for any water activity fall between 25°C (77°F) and 29°C (84.2°F), offering maximum enjoyment for lengthened periods.

Daylight

The average length of the day in April in Singapore is 12h and 9min.
On the first day of April, sunrise is at 07:04 and sunset at 19:12. On the last day of the month, sunrise is at 06:56 and sunset at 19:06 +08.

Sunshine

In April, the average sunshine in Singapore is 5.8h.

UV index

The months with the highest UV index are January through May, August through December, with an average maximum UV index of 12. A UV Index value of 11, and more, symbolizes an ultimate health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: In April, the UV index of 12 transforms into the following advice:
Execute every important safeguard, as unprotected skin and eyes could burn within moments. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Despite the clouds, sunscreen with an SPF of at least 30 should be used liberally and reapplied frequently, especially after a swim or outdoor workout. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.