August weather forecast and climate
Jakarta, Indonesia

The cityscape of Jakarta, Indonesia, under a dramatic evening skyline
The cityscape of Jakarta, Indonesia, under a dramatic evening skyline
The last month of the winter, August, is another tropical month in Jakarta, Indonesia, with average temperature fluctuating between 31.1°C (88°F) and 24.7°C (76.5°F).

Temperature

In August, the average high-temperature is essentially the same as in July - a still tropical 31.1°C (88°F). In August, in Jakarta, the average low-temperature is 24.7°C (76.5°F).

Heat index

The average heat index is appraised at a torrid 37.9°C (100.2°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'apparent temperature', 'real feel', or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Additional factors like activity, pregnancy, clothing, and metabolic differences affect individual temperature impact. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. 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. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In Jakarta, the average relative humidity is 70%.

Rainfall

August is the month with the least rainfall. Rain falls for 11.6 days and accumulates 35mm (1.38") of precipitation.

Sea temperature

In August, the average sea temperature in Jakarta, Indonesia, is 29°C (84.2°F).
Note: For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

The average length of the day in August is 11.9h.

Sunshine

The average sunshine in August is 8.5h.

UV index

Months with the highest UV index in Jakarta are January through December, with an average maximum UV index of 7. Months with the lowest UV index in Jakarta 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 the exposure to the Sun's UV radiation for the average person.
Note: In August, the average maximum UV index of 7 translate into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. 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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.

What is the temperature in August in Jakarta?

The average high-temperature, in August, in Jakarta, Indonesia, is 31.1°C (88°F), while the average low-temperature is 24.7°C (76.5°F). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), that calculates temperature value influenced by the moisture in the air, is estimated at 37.9°C (100.2°F).

What is the average humidity in August in Jakarta?

In Jakarta, Indonesia, the average relative humidity in August is 70%.

How much does it rain in Jakarta in August?

In Jakarta, during August, the rain falls for 11.6 days and regularly aggregates up to 35mm (1.38") of precipitation.

What is the driest month in Jakarta?

August is the month with the least rainfall in Jakarta, Indonesia. Rain falls for 11.6 days and accumulates 35mm (1.38") of precipitation.

What is the water temperature in August in Jakarta?

In Jakarta, Indonesia, in August, the average water temperature is 29°C (84.2°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

How many hours of daylight does Jakarta have in August?

The average length of the day in August in Jakarta is 11.9h.

How many hours of sunshine does Jakarta have in August?

In August, the average sunshine is 8.5h.

When is the highest UV index in Jakarta?

January through December, with an average maximum UV index of 7, are months with the highest UV index in Jakarta, Indonesia.

What is the month with the lowest UV index in Jakarta?

Months with the lowest UV index in Jakarta are January through December, with an average maximum UV index of 7.

What is the UV index intensity in August in Jakarta?

In August, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes a high hazard to health from unsafe exposure to the Sun's UV rays.
Average temperature in August - Jakarta, Indonesia
  • Average high temperature in August: 31.1°C

The warmest month (with the highest average high temperature) is October (31.8°C).
Months with the lowest average high temperature are January and February (29.8°C).

  • Average low temperature in August: 24.7°C

The month with the highest average low temperature is November (26.5°C).
The coldest month (with the lowest average low temperature) is August (24.7°C).

Average pressure in August - Jakarta, Indonesia
  • Average pressure in August: 1010.9mbar

The month with the highest atmospheric pressure is September (1011.1mbar).
The month with the lowest atmospheric pressure is December (1009.2mbar).

Average wind speed in August - Jakarta, Indonesia
  • Average wind speed in August: 9.4km/h

The windiest month (with the highest average wind speed) is January (12.4km/h).
The calmest month (with the lowest average wind speed) is November (8.1km/h).

Average humidity in August - Jakarta, Indonesia
  • Average humidity in August: 70%

The month with the highest relative humidity is February (76%).
The month with the lowest relative humidity is October (67%).

Average rainfall in August - Jakarta, Indonesia
  • Average rainfall in August: 35mm

The wettest month (with the highest rainfall) is March (144mm).
The driest month (with the least rainfall) is August (35mm).

Average rainfall days in August - Jakarta, Indonesia
  • Average rainfall days in August: 11.6 days

The month with the highest number of rainy days is March (26.1 days).
The month with the least rainy days is August (11.6 days).

Average sea temperature in August - Jakarta, Indonesia
  • Average sea temperature in August: 29°C

The best months for swimming (with the highest average sea temperature) are April and May (30°C).
The coldest months (with the lowest average sea temperature) are January and February (28°C).

Average daylight in August / Average sunshine in August - Jakarta, Indonesia
  • Average daylight in August: 11.9h

The month with the longest days is December (Average daylight: 12.5h).
Months with the shortest days are May, June and July (Average daylight: 11.8h).

  • Average sunshine in August: 8.5h

The month with the most sunshine is March (Average sunshine: 10.2h).
The month with the least sunshine is July (Average sunshine: 7.3h).

Average sunshine days in August - Jakarta, Indonesia
  • Average sunshine days in August: 16 days

The month with the most sunshine days is August (16 days).
The month with the least sunshine days is February (2.6 days).

Average UV index in August - Jakarta, Indonesia
  • Average UV index in August: 7

Months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).

Average cloud cover in August - Jakarta, Indonesia
  • Average cloud cover in August: 21

The month with the most cloud cover is January (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 21).

Average visibility in August - Jakarta, Indonesia
  • Average visibility in August: 10km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).