Climate - Jakarta (Indonesia)
Average weather, temperature, rainfall, sunshine hours
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Climate chart - Jakarta (Indonesia)
Jakarta's climate is tropical, hot all year round, with a rainy season from October to May and a dry season from June to September.
The city is the capital of Indonesia and is located on the northwest coast of the island of Java, at 6 degrees south latitude. In the metropolitan area we find the cities of Bekasi, Tangerang, South Tangerang, and Depok. To the south are volcanoes, including Pangrango, 3,019 meters (9,905 feet) high, and Gede, 3,008 meters (9,869 feet) high.
November to March is the period of the northwest monsoon, during which the rains are more frequent and abundant and the sky is more often cloudy, especially in January and February, when there can sometimes be floods.
June to September is the period of the southeast monsoon, which brings rain on the southern side of Java (at least in the western part of the island), while in Jakarta, protected by the mountains, in this period the weather is often sunny, even though some thunderstorms can break out.
In August, temperatures begin to rise again slightly, and the period with the highest temperatures of the year begins, before the rainy season. The record heat is 37 °C (98.5 °F) and was set in October 2002. On the other hand, occasionally the temperature can drop slightly below 20 °C (68 °F) from June to September.
Since we are close to the Equator, the length of day and night is very similar throughout the year. The day lasts 11 hours 45 minutes on June 21st, and 12 hours 30 minutes on December 21st. The sun reaches the zenith at noon around October 9th and March 5th.
Being close to the Equator and on the north side of Java, Jakarta is not affected by tropical cyclones. In the warm period of the southern hemisphere (between November and May, but more likely between December and mid-April), tropical cyclones can sometimes form on the Indian Ocean, which pass off the southern coast of Java, in the area of the Cocos Islands and of Christmas Island, and can bring heavy rain on the southern coast of Java.
Jakarta - Climate data
The average temperature of the coldest month (February) is of 27.0 °C (80.7 °F), that of the warmest month (October) is of 28.4 °C (83.1 °F). Here are the average temperatures.Jakarta - Average temperatures (1991-2006) | Month | Min (°C) | Max (°C) | Mean (°C) | Min (°F) | Max (°F) | Mean (°F) |
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| January | 23.9 | 30.8 | 27.4 | 75 | 87 | 81.2 |
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| February | 23.6 | 30.5 | 27 | 75 | 87 | 80.7 |
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| March | 23.9 | 31.7 | 27.8 | 75 | 89 | 82.1 |
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| April | 24.2 | 32.2 | 28.2 | 76 | 90 | 82.7 |
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| May | 24.2 | 32.6 | 28.4 | 76 | 91 | 83.1 |
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| June | 23.9 | 32.2 | 28 | 75 | 90 | 82.4 |
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| July | 23.3 | 32 | 27.7 | 74 | 90 | 81.8 |
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| August | 23 | 32.5 | 27.8 | 73 | 91 | 82 |
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| September | 23.6 | 33.1 | 28.4 | 75 | 92 | 83 |
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| October | 24 | 32.8 | 28.4 | 75 | 91 | 83.1 |
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| November | 24.2 | 32.5 | 28.3 | 76 | 90 | 83 |
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| December | 24 | 31.7 | 27.9 | 75 | 89 | 82.2 |
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| Year | 23.8 | 32.1 | 27.9 | 74.9 | 89.7 | 82 |
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Precipitation amounts to 1795 millimeters (70.7 inches) per year: it is therefore abundant. It ranges from 45 mm (1.8 in) in the driest month (August) to 300 mm (11.8 in) in the wettest ones (January, February) Here is the average precipitation.Jakarta - Average precipitation| Month | Millimeters | Inches | Days |
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| January | 300 | 11.8 | 18 |
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| February | 300 | 11.8 | 17 |
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| March | 210 | 8.3 | 15 |
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| April | 145 | 5.7 | 11 |
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| May | 115 | 4.5 | 9 |
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| June | 95 | 3.7 | 7 |
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| July | 65 | 2.6 | 5 |
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| August | 45 | 1.8 | 4 |
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| September | 65 | 2.6 | 5 |
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| October | 110 | 4.3 | 8 |
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| November | 140 | 5.5 | 12 |
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| December | 205 | 8.1 | 14 |
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| Year | 1795 | 70.7 | 125 |
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The sea temperature ranges from 26.5 °C (80 °F) in August to 29.5 °C (85 °F) in March, April, November, December. Here are the average sea temperatures.Jakarta - Sea temperature| Month | Celsius (°C) | Fahrenheit (°F) |
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January | 29 | 85 | February | 29 | 84 | March | 29.5 | 85 | April | 29.5 | 85 | May | 28.5 | 84 | June | 28 | 82 | July | 27 | 81 | August | 26.5 | 80 | September | 27.5 | 81 | October | 28.5 | 83 | November | 29.5 | 85 | December | 29.5 | 85 | Year | 28.5 | 83.3 |
There are on average around 2975 sunshine hours per year. Here are the average hours of sunshine per day.
Jakarta - Sunshine hours| Month | Average | Total |
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January | 6 | 190 | February | 6.5 | 185 | March | 7.5 | 240 | April | 8.5 | 255 | May | 8.5 | 260 | June | 8.5 | 255 | July | 9 | 280 | August | 9.5 | 295 | September | 9.5 | 290 | October | 9 | 280 | November | 7.5 | 230 | December | 7 | 220 | Year | 8.2 | 2975 |
Jakarta - Weather by month
Based on the period 1991-2006
January is generally a warm to hot, muggy month. The average temperature is of 27.4 °C (81 °F), with a minimum of 23.9 °C (75 °F) and a maximum of 30.8 °C (87.4 °F).
On the coldest nights of the month, the temperature usually drops to around 21.5 °C (71 °F).
On the warmest days of the month, the temperature usually reaches around 34.5 °C (94.5 °F).
Precipitation amounts to 300 mm (11.8 in), distributed over 18 days.
The day lasts on average 12 hours and 25 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 49% of the time.
The average humidity is 77%. Hence, the air is normally humid.
The average wind speed is 8 kph (5 mph).
The average sea temperature is of 29 °C (84.5 °F). Therefore, the sea is pleasantly warm and allows long swims.
February, the least warm month of the year, is generally a warm to hot, muggy month. The average temperature is of 27.0 °C (81 °F), with a minimum of 23.6 °C (74.5 °F) and a maximum of 30.5 °C (86.9 °F).
On the coldest nights of the month, the temperature usually drops to around 21 °C (70 °F).
On the warmest days of the month, the temperature usually reaches around 33.5 °C (92.5 °F).
Precipitation amounts to 300 mm (11.8 in), distributed over 17 days.
The day lasts on average 12 hours and 20 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 53% of the time.
The average humidity is 78%. Hence, the air is normally humid.
The average wind speed is 8 kph (5 mph).
The average sea temperature is of 29 °C (84 °F). Therefore, the sea is pleasantly warm and allows long swims.
March is generally a very hot, muggy month. The average temperature is of 27.8 °C (82 °F), with a minimum of 23.9 °C (75.1 °F) and a maximum of 31.7 °C (89.1 °F).
On the coldest nights, the temperature usually drops to around 21.5 °C (70.5 °F).
On the warmest days, the temperature usually reaches around 34 °C (93.5 °F).
Precipitation amounts to 210 mm (8.3 in), distributed over 15 days.
The day lasts on average 12 hours and 5 minutes.
There are on average 7.5 hours of sunshine per day. So, the sun shines 64% of the time.
The average humidity is 76%. Hence, the air is normally humid.
The average wind speed is 8 kph (5 mph).
The average sea temperature is of 29.5 °C (84.5 °F). Therefore, the sea is pleasantly warm and allows long swims.
April is generally a very hot, muggy month. The average temperature is of 28.2 °C (83 °F), with a minimum of 24.2 °C (75.5 °F) and a maximum of 32.2 °C (89.9 °F).
On the coldest nights, the temperature usually drops to around 22.5 °C (72.5 °F).
On the warmest days, the temperature usually reaches around 34 °C (93.5 °F).
Precipitation amounts to 145 mm (5.7 in), distributed over 11 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 8.5 hours of sunshine per day. So, the sun shines 71% of the time.
The average humidity is 75%. Hence, the air is normally humid.
The average wind speed is 7 kph (4 mph).
The average sea temperature is of 29.5 °C (85 °F). Therefore, the sea is pleasantly warm and allows long swims.
May is generally a very hot, muggy month. The average temperature is of 28.4 °C (83 °F), with a minimum of 24.2 °C (75.6 °F) and a maximum of 32.6 °C (90.6 °F).
On the coldest nights, the temperature usually drops to around 22 °C (71 °F).
On the warmest days, the temperature usually reaches around 35.5 °C (96 °F).
Precipitation amounts to 115 mm (4.5 in), distributed over 9 days.
The day lasts on average 11 hours and 50 minutes.
There are on average 8.5 hours of sunshine per day. So, the sun shines 71% of the time.
The average humidity is 73%. Hence, the air is normally humid.
The average wind speed is 6 kph (4 mph).
The average sea temperature is of 28.5 °C (83.5 °F). Therefore, the sea is pleasantly warm and allows long swims.
June is generally a very hot, muggy month. The average temperature is of 28.0 °C (82 °F), with a minimum of 23.9 °C (75 °F) and a maximum of 32.2 °C (89.9 °F).
On the coldest nights, the temperature usually drops to around 22 °C (71.5 °F).
On the warmest days, the temperature usually reaches around 34.5 °C (94 °F).
Precipitation amounts to 95 mm (3.7 in), distributed over 7 days.
The day lasts on average 11 hours and 50 minutes.
There are on average 8.5 hours of sunshine per day. So, the sun shines 72% of the time.
The average humidity is 71%. Hence, the air is normally humid.
The average wind speed is 7 kph (4 mph).
The average sea temperature is of 28 °C (82 °F). Therefore, the sea is pleasantly warm and allows long swims.
July is generally a very hot month. The average temperature is of 27.7 °C (82 °F), with a minimum of 23.3 °C (73.9 °F) and a maximum of 32 °C (89.6 °F).
On the coldest nights of the month, the temperature usually drops to around 21 °C (69.5 °F).
On the warmest days of the month, the temperature usually reaches around 33.5 °C (92.5 °F).
Precipitation amounts to 65 mm (2.6 in), distributed over 5 days.
The day lasts on average 11 hours and 50 minutes.
There are on average 9 hours of sunshine per day. So, the sun shines 77% of the time.
The average humidity is 69%.
The average wind speed is 7 kph (4 mph).
The average sea temperature is of 27 °C (81 °F). Therefore, the sea is pleasantly warm and allows long swims.
August is generally a very hot month. The average temperature is of 27.8 °C (82 °F), with a minimum of 23 °C (73.4 °F) and a maximum of 32.5 °C (90.6 °F).
On the coldest nights of the month, the temperature usually drops to around 20 °C (68 °F).
On the warmest days of the month, the temperature usually reaches around 35 °C (95 °F).
Precipitation amounts to 45 mm (1.8 in), distributed over 4 days.
The day lasts on average 11 hours and 55 minutes.
There are on average 9.5 hours of sunshine per day. So, the sun shines 80% of the time.
The average humidity is 66%.
The average wind speed is 8 kph (5 mph).
The average sea temperature is of 26.5 °C (80 °F). Therefore, the sea is pleasantly warm and allows long swims.
September is generally a very hot month. The average temperature is of 28.4 °C (83 °F), with a minimum of 23.6 °C (74.5 °F) and a maximum of 33.1 °C (91.5 °F).
On the coldest nights, the temperature usually drops to around 21 °C (69.5 °F).
On the warmest days, the temperature usually reaches around 34.5 °C (94 °F).
Precipitation amounts to 65 mm (2.6 in), distributed over 5 days.
The day lasts on average 12 hours and 5 minutes.
There are on average 9.5 hours of sunshine per day. So, the sun shines 79% of the time.
The average humidity is 64%.
The average wind speed is 8 kph (5 mph).
The average sea temperature is of 27.5 °C (81 °F). Therefore, the sea is pleasantly warm and allows long swims.
October, the hottest month of the year, is generally a very hot month. The average temperature is of 28.4 °C (83 °F), with a minimum of 24 °C (75.2 °F) and a maximum of 32.8 °C (91 °F).
On the coldest nights, the temperature usually drops to around 22 °C (71.5 °F).
On the warmest days, the temperature usually reaches around 36 °C (96.5 °F).
Precipitation amounts to 110 mm (4.3 in), distributed over 8 days.
The day lasts on average 12 hours and 10 minutes.
There are on average 9 hours of sunshine per day. So, the sun shines 74% of the time.
The average humidity is 69%.
The average wind speed is 8 kph (5 mph).
The average sea temperature is of 28.5 °C (83 °F). Therefore, the sea is pleasantly warm and allows long swims.
November is generally a very hot, muggy month. The average temperature is of 28.3 °C (83 °F), with a minimum of 24.2 °C (75.5 °F) and a maximum of 32.5 °C (90.5 °F).
On the coldest nights, the temperature usually drops to around 21 °C (70 °F).
On the warmest days, the temperature usually reaches around 35.5 °C (96 °F).
Precipitation amounts to 140 mm (5.5 in), distributed over 12 days.
The day lasts on average 12 hours and 25 minutes.
There are on average 7.5 hours of sunshine per day. So, the sun shines 62% of the time.
The average humidity is 72%. Hence, the air is normally humid.
The average wind speed is 8 kph (5 mph).
The average sea temperature is of 29.5 °C (85 °F). Therefore, the sea is pleasantly warm and allows long swims.
December is generally a very hot, muggy month. The average temperature is of 27.9 °C (82 °F), with a minimum of 24 °C (75.3 °F) and a maximum of 31.7 °C (89.1 °F).
On the coldest nights of the month, the temperature usually drops to around 22 °C (71.5 °F).
On the warmest days of the month, the temperature usually reaches around 34 °C (93.5 °F).
Precipitation amounts to 205 mm (8.1 in), distributed over 14 days.
The day lasts on average 12 hours and 30 minutes.
There are on average 7 hours of sunshine per day. So, the sun shines 57% of the time.
The average humidity is 73%. Hence, the air is normally humid.
The average wind speed is 9 kph (6 mph).
The average sea temperature is of 29.5 °C (85.5 °F). Therefore, the sea is pleasantly warm and allows long swims.
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