April weather forecastSibolga, Indonesia
April weather for Sibolga, Indonesia: April, June and July, with an average sea temperature of 29.9°C (85.8°F), are months with the warmest seawater in Sibolga. April, June and July, with an average sea temperature of 29.9°C (85.8°F), are months with the warmest seawater in Sibolga.
April
Weather in April
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.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Sibolga, Indonesia
- Average high temperature in April: 28.3°C
The warmest month (with the highest average high temperature) is May (28.9°C).
The month with the lowest average high temperature is November (27.3°C).
- Average low temperature in April: 22.3°C
The month with the highest average low temperature is May (22.5°C).
The coldest months (with the lowest average low temperature) are July and September (21.5°C).
Average pressure in April
Sibolga, Indonesia
- Average pressure in April: 1010.3mbar
The month with the highest atmospheric pressure is September (1011mbar).
The month with the lowest atmospheric pressure is May (1009.9mbar).
Average wind speed in April
Sibolga, Indonesia
- Average wind speed in April: 4.7km/h
The windiest month (with the highest average wind speed) is June (5.6km/h).
The calmest month (with the lowest average wind speed) is April (4.7km/h).
Average humidity in April
Sibolga, Indonesia
- Average humidity in April: 83%
The month with the highest relative humidity is November (84%).
The months with the lowest relative humidity are June and July (78%).
Average rainfall in April
Sibolga, Indonesia
- Average rainfall in April: 177mm
The wettest month (with the highest rainfall) is November (259mm).
The driest month (with the least rainfall) is June (82mm).
Average rainfall days in April
Sibolga, Indonesia
- Average rainfall days in April: 25.8 days
The months with the highest number of rainy days are March and November (27.2 days).
The month with the least rainy days is June (17.2 days).
Average sea temperature in April
Sibolga, Indonesia
- Average sea temperature in April: 29.9°C
The best months for swimming (with the highest average sea temperature) are April, June and July (29.9°C).
The coldest months (with the lowest average sea temperature) are September and November (29.2°C).
Average daylight in April /
Average sunshine in April
Sibolga, Indonesia
- Average daylight in April: 12h and 12min
The month with the longest days is June (Average daylight: 12h and 12min).
The month with the shortest days is December (Average daylight: 12h and 0min).
- Average sunshine in April: 7h and 54min
The month with the most sunshine is June (Average sunshine: 9h and 0min).
The month with the least sunshine is November (Average sunshine: 7h and 0min).
Average sunshine days in April
Sibolga, Indonesia
- Average sunshine days in April: 3.2 days
The month with the most sunshine days is June (11.4 days).
The month with the least sunshine days is November (1.8 days).
Average UV index in April
Sibolga, Indonesia
- Average UV index in April: 6
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 6).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 6).
Average cloud cover in April
Sibolga, Indonesia
- Average cloud cover in April: 45
The month with the most cloud cover is November (Cloud cover 55).
The month with the least cloud cover is June (Cloud cover 33).
Average visibility in April
Sibolga, Indonesia
- Average visibility in April: 9km
The months with the highest visibility are May, June, July, August and September (10km).
The months with the lowest visibility are January, February, March, April, October, November and December (9km).





