October 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

Weather in October

October, the same as September, in Jakarta, Indonesia, is another tropical spring month, with temperature in the range of an average high of 31.8°C (89.2°F) and an average low of 26°C (78.8°F).

Temperature

With an average high-temperature of 31.8°C (89.2°F) and an average low-temperature of 26°C (78.8°F), October is the warmest month.

Heat index

The average heat index in October is calculated to be a sweltering 38.8°C (101.8°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'apparent temperature', 'feels like', or 'real feel', is a measure of how hot it feels when the actual air humidity is factored in. Additional factors like activity, clothing, differences in body mass, height, and shape, and wind affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

With an average relative humidity of 67%, October is the least humid month in Jakarta.

Rainfall

In Jakarta, during October, the rain falls for 20 days and regularly aggregates up to 69mm (2.72") of precipitation. In Jakarta, during the entire year, the rain falls for 252 days and collects up to 1150mm (45.28") of precipitation.

Sea temperature

In Jakarta, the average seawater temperature 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

In Jakarta, the average length of the day in October is 12.2h.

Sunshine

In Jakarta, the average sunshine in October is 9.5h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. Months with the lowest UV index in Jakarta are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 7 transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.
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FAQ

What is the warmest month in Jakarta?

With an average high-temperature of 31.8°C (89.2°F) and an average low-temperature of 26°C (78.8°F), October is the warmest month in Jakarta, Indonesia.

What is the temperature in October in Jakarta?

In Jakarta, in October, the average high-temperature is 31.8°C (89.2°F), and the average low-temperature is 26°C (78.8°F). In October, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, is calculated to be 38.8°C (101.8°F).

What is the least humid month in Jakarta?

October is the least humid month in Jakarta, with an average relative humidity of 67%.

What is the average humidity in October in Jakarta?

In October, the average relative humidity is 67%.

How many days does it rain in October in Jakarta?

In Jakarta, during October, the rain falls for 20 days and regularly aggregates up to 69mm (2.72") of precipitation.

What is the water temperature in October in Jakarta?

In October, the average sea temperature in Jakarta, Indonesia, 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 October?

In Jakarta, Indonesia, the average length of the day in October is 12.2h.

How many hours of sunshine does Jakarta have in October?

In October, the average sunshine is 9.5h.

When is the highest UV index in Jakarta?

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

What are the months with the lowest UV index in Jakarta?

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

What is the UV index reading in October in Jakarta?

In October, the average daily maximum UV index in Jakarta is 7. A UV Index estimate of 6 to 7 represents a high health threat from the exposure to the Sun's UV radiation.

Average temperature in October
Jakarta, Indonesia

Average temperature in October - Jakarta, Indonesia
  • Average high temperature in October: 31.8°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 October: 26°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).

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Average pressure in October
Jakarta, Indonesia

Average pressure in October - Jakarta, Indonesia
  • Average pressure in October: 1010.5mbar

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

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Average wind speed in October
Jakarta, Indonesia

Average wind speed in October - Jakarta, Indonesia
  • Average wind speed in October: 8.6km/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).

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Average humidity in October
Jakarta, Indonesia

Average humidity in October - Jakarta, Indonesia
  • Average humidity in October: 67%

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

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Average rainfall in October
Jakarta, Indonesia

Average rainfall in October - Jakarta, Indonesia
  • Average rainfall in October: 69mm

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

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Average rainfall days in October
Jakarta, Indonesia

Average rainfall days in October - Jakarta, Indonesia
  • Average rainfall days in October: 20 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).

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Average sea temperature in October
Jakarta, Indonesia

Average sea temperature in October - Jakarta, Indonesia
  • Average sea temperature in October: 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).

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Average daylight in October /
Average sunshine in October
Jakarta, Indonesia

Average daylight in October / Average sunshine in October - Jakarta, Indonesia
  • Average daylight in October: 12.2h

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 October: 9.5h

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

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Average sunshine days in October
Jakarta, Indonesia

Average sunshine days in October - Jakarta, Indonesia
  • Average sunshine days in October: 9.2 days

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

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Average UV index in October
Jakarta, Indonesia

Average UV index in October - Jakarta, Indonesia
  • Average UV index in October: 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).

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Average cloud cover in October
Jakarta, Indonesia

Average cloud cover in October - Jakarta, Indonesia
  • Average cloud cover in October: 26

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

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Average visibility in October
Jakarta, Indonesia

Average visibility in October - Jakarta, Indonesia
  • Average visibility in October: 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).

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