April weather forecast
Keat Hong, Singapore

April, like March, is another hot spring month in Keat Hong, Singapore, with an average temperature fluctuating between 26.3°C (79.3°F) and 31.2°C (88.2°F).

Temperature

The beginning of April records an average high-temperature of a still hot 31.2°C (88.2°F), almost echoing the conditions of the previous month. Keat Hong experiences a subtle drop in temperature during the April nights, recording an average of 26.3°C (79.3°F).

Heat index

For most parts of April, the heat index is appraised at a blisteringly hot 40°C (104°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
One should consider that heat index numbers are for shaded settings and light wind. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', joins air temperature with relative humidity to produce a temperature perception for humans. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

In April, the average relative humidity in Keat Hong is 77%.

Rainfall

In April, in Keat Hong, the rain falls for 28.3 days. Throughout April, 151mm (5.94") of precipitation is accumulated. Throughout the year, in Keat Hong, there are 327.3 rainfall days, and 1631mm (64.21") of precipitation is accumulated.

Daylight

In Keat Hong, Singapore, the average length of the day in April 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 06:57 and sunset at 19:07 +08.

Sunshine

In April, the average sunshine in Keat Hong is 8.6h.

UV index

The months with the highest UV index in Keat Hong, Singapore, are January through December, with an average maximum UV index of 7. The months with the lowest UV index in Keat Hong, Singapore, are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The UV index of 7 during April translates into the following guidance:
Fend off overexposure. Sun protection is vital. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.