April weather forecast
Pontianak, Indonesia

April marks a somewhat significant departure from the pattern set in the preceding months. Pontianak, renowned for its seaside location, witnesses a sea temperature rise to 29.8°C (85.6°F), coloring beachside activities. The clouds grow a little sparser, but no drastic changes in cloud cover occur, maintaining a stubbornly cloudy environment. Rainfall, albeit still frequent, extends fewer days, making for a subtly drier experience. This mix of humidity, heat, and rain paints a vibrant tropical picture of the city, with temperatures creeping up to 31.8°C (89.2°F).

Temperature

As March turns into April, the average high-temperatures rest at a still hot 31.8°C (89.2°F), showing a minor variation from the prior month. During April, the nighttime temperature averages to a moderately hot 23.9°C (75°F).

Heat index

For April, the heat index is calculated to be a life-threatening hot 45°C (113°F). Remain cautious: Heat cramps along with heat exhaustion are foreseeable. Ongoing activity may precipitate heatstroke.
One should consider that heat index numbers are for shaded settings and light wind. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', offers an insight into how hot it feels when we factor in moisture content. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.

Humidity

In April, the average relative humidity is 84%.

Rainfall

In Pontianak, during April, the rain falls for 26.6 days and regularly aggregates up to 146mm (5.75") of precipitation. Throughout the year, in Pontianak, there are 282.2 rainfall days, and 1495mm (58.86") of precipitation is accumulated.

Sea temperature

In Pontianak, the average seawater temperature in April is 29.8°C (85.6°F).
Note: Swimming, diving, and other water activities in the temperature range of 25°C (77°F) to 29°C (84.2°F) are perceived as very enjoyable and comfortable for prolonged durations.

Daylight

In Pontianak, the average length of the day in April is 12h and 7min.
On the first day of April, sunrise is at 05:43 and sunset at 17:49. On the last day of the month, sunrise is at 05:36 and sunset at 17:43 WIB.

Sunshine

In April, the average sunshine is 7.8h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index of 7 in April converts into the following recommendations:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Take caution! The UV rays from the Sun gain strength from sand and water reflections.