Question 1

What is the wettest month in Jakarta?

Accepted Answer

January is typically the wettest month in Jakarta. In 2024, January recorded 328.0mm (12.9 inches) of rainfall, making it the peak of Jakarta's monsoon season.

December followed closely behind with 323.4mm (12.7 inches), while November saw 278.4mm (11.0 inches). These three months form the core of Jakarta's wet season, when the northwest monsoon brings heavy tropical rainfall to the city. During January 2024, humidity levels averaged 83.9% and temperatures remained warm at 26.8°C (80.2°F).

Jakarta's wet season runs from November through April, receiving approximately 73% of the city's annual rainfall during this period. The wet season monthly average reached 281.5mm (11.1 inches) in 2024, compared to just 103.8mm (4.1 inches) during the dry season months from May to October. The driest month was August, with only 37.3mm (1.5 inches) of precipitation.

For visitors planning a trip to Jakarta, the wettest months bring frequent afternoon thunderstorms that can cause flash flooding in low-lying areas. If you prefer drier conditions, August through October offers the most pleasant weather. However, the wet season also brings cooler temperatures and lush green landscapes throughout the city.

Question 2

What is the driest month in Jakarta?

Accepted Answer

August is the driest month in Jakarta, with only 37.3mm (1.5 inches) of rainfall recorded in 2024. This makes it the ideal time to explore the Indonesian capital with minimal rain disruptions.

During August 2024, Jakarta experienced warm and sunny conditions with average temperatures of 27.5°C (81.5°F). Daytime highs reached up to 35.3°C (95.5°F), while nights cooled to around 21.1°C (70.0°F). The month also recorded the highest sunshine hours of the year at 319.8 hours, and humidity dropped to a comfortable 74.5%.

The dry season in Jakarta typically runs from June through October, with August sitting at its peak. For comparison, August's 37.3mm of precipitation is nearly 9 times less than January's 328.0mm, which is the wettest month. October and July follow as the second and third driest months with 74.0mm (2.9 inches) and 89.2mm (3.5 inches) respectively.

If you're planning outdoor activities, sightseeing, or exploring Jakarta's historic sites and bustling markets, August offers the most favorable weather conditions in 2024. The combination of low rainfall, abundant sunshine, and relatively lower humidity makes it the best month for visitors who want to avoid the tropical downpours that characterize Jakarta's wet season from November through April.

Question 3

What are the average temperatures in Jakarta throughout 2024?

Accepted Answer

Jakarta maintained remarkably consistent temperatures throughout 2024, with an annual average of 27.3°C (81.1°F) and only minor seasonal variations typical of its tropical climate.

The warmest month in Jakarta during 2024 was October, reaching an average temperature of 28.2°C (82.8°F). The coolest months were January, February, and July, all averaging around 26.8°C (80.2°F). This narrow range of just 1.4°C between the warmest and coolest months demonstrates Jakarta's stable equatorial climate.

Daily temperature swings in Jakarta were more noticeable than seasonal changes. Average daily highs reached 34.2°C (93.6°F), while nighttime lows dropped to a more comfortable 22.5°C (72.5°F). The city experienced its hottest recorded temperature in September 2024, hitting 36.6°C (97.9°F), while the coolest temperature of 20.3°C (68.5°F) occurred in July.

Throughout 2024, Jakarta's average humidity remained high at 81.2%, contributing to the warm, tropical feel of the city. For visitors planning a trip to Jakarta, the consistent year-round temperatures mean any month is suitable for travel from a temperature perspective, though lighter clothing and sun protection are advisable regardless of the season.

Question 4

What is the sunniest time of year in Jakarta?

Accepted Answer

The sunniest time of year in Jakarta is during the dry season from June to October, with August being the peak month for sunshine in 2024.

August 2024 recorded 319.8 hours of sunshine in Jakarta, averaging approximately 10.3 hours of sunlight per day. October followed closely with 318.5 hours, while September saw 303.1 hours. During the entire dry season, Jakarta averaged 306.7 hours of sunshine per month, compared to just 240.1 hours during the wet season months.

The contrast between seasons is significant. December 2024, the least sunny month, recorded only 207.7 hours of sunshine—about 6.7 hours daily. This represents roughly 35% less sunshine than August. Jakarta received a total of 3,307.7 hours of sunshine throughout 2024.

For visitors planning outdoor activities, the August to October period offers ideal conditions in Jakarta. Temperatures during these sunniest months averaged 27.8°C (82.0°F), providing warm but not extreme heat alongside abundant sunshine. The dry season also brings significantly less rainfall, with only 440.5mm of precipitation from June to October compared to much higher amounts during the wet season.

If you're seeking maximum sunshine in Jakarta, plan your visit between August and October when you can expect over 300 hours of monthly sunshine and the most favorable weather conditions for sightseeing and outdoor exploration.

Question 5

What is the average humidity in Jakarta throughout the year?

Accepted Answer

Jakarta experiences consistently high humidity throughout the year, with an annual average of 81.2% recorded in 2024. This tropical climate makes humidity a key factor for visitors and residents alike.

The city's humidity levels follow a clear seasonal pattern tied to the monsoon cycle. During the wet season from November to April, Jakarta's average humidity reaches 84.3%, with April recording the highest monthly humidity at 86.0%. The dry season from May to October brings somewhat drier conditions, with average humidity dropping to 78.1%.

August and October 2024 recorded the lowest humidity levels at 74.5%, offering the most comfortable conditions for outdoor activities. In contrast, the peak humidity months of February (85.9%), March (85.1%), and April (86.0%) can feel particularly muggy, especially when combined with average temperatures around 27°C (81°F).

Eight out of twelve months in 2024 saw humidity levels at or above 80%, highlighting Jakarta's consistently humid tropical climate. Even during the driest months, humidity rarely drops below 74%, which remains high compared to temperate regions.

For visitors planning trips to Jakarta, the dry season months of July through October offer the most comfortable humidity conditions, with levels between 74.5% and 77.9%. Lightweight, breathable clothing and staying hydrated are essential year-round due to the city's persistent tropical humidity.

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FAQ

What is the wettest month in Jakarta?

What is the driest month in Jakarta?

What are the average temperatures in Jakarta throughout 2024?

What is the sunniest time of year in Jakarta?

What is the average humidity in Jakarta throughout the year?