Jakarta
Indonesia
Long term weather forecast
Long term weather forecast

Monthly weather forecast and Climate
Jakarta, Indonesia

Jakarta, the capital of Indonesia, has a tropical monsoon climate that is classified under the Köppen climatic classification as Am.
The city is characterized by one long and the wet season running from October to May and one short dry season running from June through September. September is the warmest month and the least humid while January is averagely the most humid and the wettest month.

The city is generally warm with an annual average high temperature of 87.8°F (31°C) and an annual average low temperature of 79.3°F (26.3°C). Rainfall is experienced more in the wet season and intermittently during the dry season. During the rainy season, the average monthly precipitation measures up to 11.8" (299.7mm) which sometimes result in floods in the relatively flat areas.

The skies in Jakarta are relatively clear all year long with the wet season experiencing a small percentage of the possibility of cloudy skies and the dry season experiencing very minimal clouds. Fog and snow are rare occurrences in the city and in the months between November and February, the sun gets mildly hot and gets hotter from mid-March through late October.

Jakarta's weather is lovely during the dry season. From June to mid-October, the temperatures are scorching at an average between 78.8°F (26°C) and 89.6°F (32°C) sometimes going up to 91.4°F (33°C). The city becomes less crowded as people move out to take cover from the heat. The sea temperature is warm and pleasant for all the water activities to cool off the heat. Expect up to twelve hours of daylight sun and magnificently clear skies great for sightseeing and skydiving. The dry season is a great time to visit parks and nature-friendly exhibitions because the rainfall and wind speed is so minimal and the crowds small hence no interruptions are expected.

Jakarta is not the best place to visit during its wet season especially in the months between October and February. Owing to its low-lying placement on the Coast of West Java and its elevation of about 8m above sea level, Jakarta is prone to floods during the rainy periods.

During the rainy season, Jakarta is susceptible to experiencing flooding due to its low placement in the West Java coast. It is made worse by the dense population experienced over the years.

January is the most humid month in Jakarta at 85% and the wettest month with rains falling for an average of twenty days across the month to precipitate at an average of 11.8" (299.7mm). The city experiences sunshine hours of up to 188 per month on average, and its temperatures range between 78.8°F (26°C) and 86°F (30°C). While this is relatively warm for a rainy day, it is important to note that the sea temperature is high at an average of 82.4°F (28°C) across the month. Rain in Jakarta may result in floods due to its low placement and nearness to water bodies. More »

Temperatures in February remain constant at 78.8°F (26°C) minimum and 86°F (30°C) maximum. The humidity, too, remains steady at 85%. The average number of rainy days in February drop a little to eighteen across the month to fetch at an average of 11.8" (299.7mm) making one of the wettest months in the year. There is another slight drop in the number of sunshine hours in the month to an average of 180 hours heating the sea temperatures to a constant standard of 82.4°F (28°C). Because of the high rains, most of the activities in the month are indoors especially considering possible flooding. More »

The rainfall drops a little from the mid of March to fall for sixteen days on average with the rain gauge collecting approximately 7.9" (200.7mm). March falls within the wet season, but its humidity drops to 84% and the average total sunshine hours in the month take a sharp rise to 237 prompting the sea temperatures to fall to 82.9°F (28.3°C). The weather is generally warm and pleasant, and the average temperatures range between 78.8°F (26°C) and 87.8°F (31°C), a small rise from the previous month's readings. More »

April in Jakarta gets warmer with a slight drop in humidity to read 82%. The minimum average temperature remains steady at 78.8°F (26°C), but the maximum average temperature rises a bit to 89.6°F (32°C). The temperatures are scorching, but the rain still falls to cool things down. Rainfall in April is experienced for twelve days on average to precipitate at 5.9" (149.9mm) in the month. The sea temperatures in the month increase to 84.2°F (29°C) due to the sun's heat that is experienced for up to 252 hours across the month. Expect crowds at the beach trying to cool away from the scorching heat. More »

May in Jakarta sees a further drop in the humidity levels to 81% with the average temperatures steadily scorching at 78.8°F (26°C) at its lowest and 89.6°F (32°C) at the highest reading. The rise in temperature comes with an increase in the number of sunshine hours to 260 to heat the sea temperatures to a warm and pleasant 82.4°F (28°C). The high temperatures limit outdoor activities, but the sea and beaches remain occupied. Rainfall in May drops further to rain for an average of ten days across the month to collect 4.9" (124.5mm) on the rain gauge meter. More »

In June, Jakarta experiences a further drop in its rainfall falling for an average of seven days in the entire month. The rain gauge readings in the month average 3.9" (99.1mm) prompting a new reduction in the humidity levels to 80%. The sea temperature in June reads a steady 82.4°F (28°C) even as it remains a transitional month into the dry season. Expect the skies to clear up and the winds to calm down. The sunshine hours are steady at 255 across the month and coupled up with the steady high temperatures between 78.8°F (26°C) and 89.6°F (32°C); it starts to feel hot considering the decline in rainfall in the month. More »

July in Jakarta gets drier than the past few weeks as the rainfall is experienced only for an average of six days the whole month and the rain gauge collects only 2.4" (61mm) on average. The lowest average temperatures read 78.8°F (26°C), and the highest average reads 87.8°F (31°C). The minimal rains make it drier but the skies are clear, and the windspeed minimal. This weather makes a perfect time for sightseeing because of the clarity of the space above. Humidity in July drops to 79% but the sunshine hours rise to a soaring 280 hours resulting in 82.4°F (28°C) warmth of the sea water. More »

August is the driest month with the average sunshine hours rising higher to 295 hours across the month. Temperatures also rise to the range between 78.8°F (26°C) and 89.6°F (32°C) making the weather extremely warm. The water temperatures in August drop to 80.6°F (27°C) and see the heat lovers take to cool the heat with a dip in the sea. Rainfall drops further to fall only for five days averagely throughout the month with the rain gauge meter reading a low 1.6" (40.6mm) on average. Crowds that fear the rainy season come out to enjoy the heat and magnificent skies in the city. More »

September in Jakarta marks the beginning of the end of the dry season with its humidity levels dropping to 71%, probably the lowest to be experienced all year long. It is the warmest month in the year with the temperatures going as high as 91.4°F (33°C) maximum and 80.6°F (27°C) at the minimum. Rainfall increases a little to rain for an average of six days during the month collecting precipitation of 2.4" (61mm) averagely. The average monthly sunshine hours drop a few to 280 hours across the month inciting the sea to heat at a monthly average of 82.4°F (28°C). More »

October is the official transitional month into the rainy season. It is characterized by a rise in the rain gauge meter readings to 4.7" (119.4mm) falling for an average of nine days in the month. The temperatures drop a little to 78.8°F (26°C) on the lowest side and 89.6°F (32°C) on the highest side making the month just as warm only a little more humid at 73%. The monthly average sunshine hours drop a little to approximately 276 hours as does the sea temperature that heats at a constant 82.4°F (28°C) on average throughout the month. More »

The wet season starts to pick in November with the humidity rising to 80% and the rain falling for an average of thirteen days in the month to collect at an average of 5.5" (139.7mm) approximately. The temperatures come down to read between 78.8°F (26°C) and 86°F (30°C) on average making it pleasantly warm but rainy and wet. The rains are not as high, so flooding is not expected to start yet. The average monthly sunshine hours become 230 - warm and relieving of the wetness from the rain. The sea temperature steadies on at an average of 82.4°F (28°C). More »

December in Jakarta is more humid than the past few months with a high score of 82%. Rainfall rises even further to fall for fourteen days on average throughout the month, and the rain gauge manages to fetch an average of 7.9" (200.7mm). These readings keep growing in the next few weeks as the rainy season progresses. The rainfall may result in floods as it progresses by the day. The sunshine hours drop to an average of 225 hours in the month, but the sea temperature steadies on at 82.4°F (28°C). Even with the rains, December is still a warm month with warm and pleasant temperatures reading between 78.8°F (26°C) and 86°F (30°C). More »

Months with longest days are January, February, March, April, May, June, July, August, September, October, November and December (Average daylight: 12h).
Months with shortest days are January, February, March, April, May, June, July, August, September, October, November and December (Average daylight: 12h).

Month with most sunshine is September (Average sunshine: 9.7h).
Month with least sunshine is January (Average sunshine: 6.1h).

Months with highest UV index are January, February, March, April, August, September, October, November and December (UV index 12).
Months with lowest UV index are June and July (UV index 10).

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