April weather forecast
Sibolga, Indonesia

The familiarity of the weather continues in April in Sibolga, deriving its constancy from the equatorial settings. Despite a minor dip of 2mm (0.08") in rainfall from the March value, the overall climate remains almost unvarying. Dominated by overcast skies, the month nudges onto the summer season. The area's flora and fauna flourish under the stable climatic conditions. Despite the idiosyncrasies of the weather, the city retains its aura of tropical charm.

Temperature

Sibolga's shift into April is marked by a subtle change to a still moderately hot 28.3°C (82.9°F) from March's 28.5°C (83.3°F) in temperature. Throughout the nights in April, Sibolga experiences an average low-temperature of 22.3°C (72.1°F).

Heat index

For April, the heat index is calculated to be a hot 33°C (91.4°F). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.
Always consider that heat index estimations are for light winds and places in the shade. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is achieved by amalgamating air temperature with the relative humidity readings. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.

Humidity

In Sibolga, Indonesia, the average relative humidity in April is 83%.

Rainfall

In Sibolga, in April, during 25.8 rainfall days, 177mm (6.97") of precipitation is typically accumulated. Throughout the year, there are 285.3 rainfall days, and 1792mm (70.55") of precipitation is accumulated.

Sea temperature

April, June and July, with an average sea temperature of 29.9°C (85.8°F), are months with the warmest seawater in Sibolga.
Note: Water surface temperatures from 25°C (77°F) to 29°C (84.2°F) are considered optimal and extremely delightful for long-lasting pleasure in any water activity.

Daylight

In Sibolga, the average length of the day in April is 12h and 10min.
On the first day of April in Sibolga, sunrise is at 06:24 and sunset at 18:32. On the last day of the month, sunrise is at 06:16 and sunset at 18:27 WIB.

Sunshine

In Sibolga, the average sunshine in April is 7.9h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 6. The months with the lowest UV index are January through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: In April, the maximum UV index of 6 suggests this advice:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Alert! UV radiation becomes sharper due to reflections from sand and water.