Jakarta
Indonesia
Long-term weather forecast
Long-term weather forecast
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January weather forecast and Climate
Jakarta, Indonesia

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The cityscape of Jakarta, Indonesia, under a dramatic evening skyline
The cityscape of Jakarta, Indonesia, under a dramatic evening skyline
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 299.7mm (11.8").
The city experiences sunshine hours of up to 188 per month on average, and the temperatures range between 26°C (78.8°F) and 30°C (86°F). While this is relatively warm for a rainy day, it is important to note that the sea temperature is high at an average of 28°C (82.4°F) across the month.
Rain in Jakarta may result in floods due to its low placement and nearness to water bodies.
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  • The average high temperature in January: 29.9°C

The warmest month (with the highest average high temperature) is September (33°C).
The month with the lowest average high temperature is January (29.9°C).

  • The average low temperature in January: 24.2°C

Months with the highest average low temperature are September and October (25.5°C).
The coldest month (with the lowest average low temperature) is January (24.2°C).

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  • The average humidity in January: 85%

Months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is September (75%).

  • The average rainfall in January: 402mm

The wettest month (with the highest rainfall) is January (402mm).
The driest month (with the lowest rainfall) is July (58mm).

  • The average rainfall days in January: 19 days

The month with the highest number of rainy days is January (19 days).
The month with the lowest number of rainy days is August (5 days).

  • The average sea temperature in January: 28°C

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

  • The average daylight in January: 12h

Months with the 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).

  • The average sunshine in January: 6.1h

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

  • The average UV index in January: 12

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

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