April weather forecast
Bintulu, Malaysia

In April, Bintulu, Malaysia, experiences a marked rise in temperature, reinforcing the transition from the preceding months. Rainfall stays on par with March without significant alterations, while the relative humidity experiences a subtle decrease. The sea temperature adapts to the changing ambient and soars to 29.5°C (85.1°F). This results in a prolonged period of sunshine, shedding more light on the city. The weather pattern in April cements the arrival of a warmer, sunnier phase.

Temperature

The advent of April observes an average high-temperature of a tropical 30.2°C (86.4°F), nearly identical to March's 29.2°C (84.6°F). Throughout the nights in April, Bintulu experiences an average low-temperature of 24.3°C (75.7°F).

Heat index

The heat index value for April is appraised at a very hot 39°C (102.2°F). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', integrates the air's temperature and its humidity to showcase the felt temperature by people. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

The average relative humidity in April is 83%.

Rainfall

In April, in Bintulu, the rain falls for 27.1 days. Throughout April, 170mm (6.69") of precipitation is accumulated. In Bintulu, during the entire year, the rain falls for 319.1 days and collects up to 2216mm (87.24") of precipitation.

Sea temperature

In Bintulu, the average seawater temperature in April is 29.5°C (85.1°F).
Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

In April, the average length of the day in Bintulu is 12h and 11min.
On the first day of April, sunrise is at 6:27 am and sunset at 6:36 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 6:31 pm +08.

Sunshine

In Bintulu, the average sunshine in April is 8h.

UV index

February through November, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 7 during April translates into the following directions:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Alert! Sand and water increase UV exposure due to their reflective properties.