Last updated: August 21, 2025
January in Jakarta, Indonesia presents a warm and humid climate, characterized by a maximum temperature reaching up to 33°C (92°F) and an average of 27°C (80°F), while the minimum temperature hovers around 23°C (74°F). This month is also notable for its significant precipitation, with a staggering 252 mm (9.9 in) of rain spread across 24 days, resulting in a humidity level of 84%. Travelers should be prepared for frequent showers, making it an ideal time for experiencing the lush greenery of this vibrant city, albeit with an umbrella in tow.
In January, Jakarta's temperatures provide a warm welcome to the new year, with minimums around 23°C (74°F) and peak highs reaching up to 33°C (92°F). The average temperature hovers at a comfortable 27°C (80°F), setting a scene perfect for exploration or relaxation. As the month flows into February, the temperatures remain stable, with only slight adjustments; February's max dips slightly to 32°C (90°F), while the average stays the same at 27°C (80°F). Moving into March and April, the thermal patterns continue with highs touching 33°C (92°F), reinforcing the city's tropical charm. Interestingly, May marks a subtle shift, introducing a warmer average of 28°C (82°F) and a peak that sometimes hits 34°C (93°F). This gradual escalation in temperature peaks continues through to September, with the highest average of 28°C (82°F) and maximums reaching a sweltering 35°C (95°F). Consequently, as Jakarta transitions into October, temperatures linger around 35°C (96°F), suggesting a sustained warmth that persists into the year's end. Overall, January sets the tone for a consistently tropical climate, with slight fluctuations that invite both locals and visitors to embrace Jakarta's vibrant energy.
In January, Jakarta experiences a significant amount of rainfall, with 252 mm (9.9 in) of precipitation spread across 24 days of the month. This sets the stage for one of the wettest periods of the year, as the city transitions into its rainy season. The trend continues into February, where precipitation peaks at 328 mm (12.9 in) over 28 days, indicating that the wet season is in full swing. However, by March, while the rain persists with 267 mm (10.5 in), the number of rainy days increases to 29, suggesting that the intensity of showers may be easing. As the months progress into April and May, precipitation begins to taper off, highlighting a gradual shift towards drier conditions, with May seeing a notable drop to 125 mm (4.9 in) across 20 days. This trend of diminishing rainfall continues into the mid-year months, reflecting a typical pattern of seasonal variation in Jakarta’s climate.
In January, Jakarta experiences a notable humidity level of 84%, setting the tone for the rainy season. This high humidity persists into February, with a slight increase to 86%, illustrating the city’s tropical climate. As the months progress, humidity begins to show a subtle decline, dropping to 81% in April and further to 80% by May and June. The trend continues downward, reaching its lowest point of 77% in both August and September, before climbing back to 80% in November. Overall, January marks the start of Jakarta's humid period, characterized by elevated levels that gradually ease as the year advances, creating a dynamic interplay between warmth and moisture throughout the tropical landscape.
In January, Jakarta experiences an extreme UV Index of 14, with a rapid burn time of just 10 minutes, signaling the start of the year with serious sun exposure risk. This trend of extreme levels continues into February and March, where the UV Index peaks at 16, maintaining the same urgent caution for sun protection. As the months progress to April and May, the index slightly decreases to 14 and 11, yet still falls within the extreme exposure category. By June and July, the UV Index stabilizes at 10, marking a transition to a very high exposure level, but the burn time increases to 15 minutes. The late summer months see a brief surge back into extreme levels in August, followed by a fluctuating index through to November, emphasizing the sustained need for vigilance against UV radiation. Even as December arrives with an index of 13, the overarching theme remains clear: Jakarta's sun presents a persistent challenge year-round, hence it's essential to stay protected. For more detailed information, check the Jakarta UV Index.
UV Risk Categories
January in Jakarta shines with 213 hours of sunlight, setting the stage for a gradual increase throughout the year. As the months unfold, daylight hours steadily climb, peaking in August with an impressive 317 hours. This upward trend highlights Jakarta's vibrant climate, perfect for both locals and travelers seeking to bask in the sun. The daylight begins to wane slightly in the latter part of the year, with November and December seeing 266 and 261 hours respectively. Despite this slight dip, the overall sunshine panorama for Jakarta's annual cycle showcases an inviting sun-soaked destination that keeps spirits high year-round.
In Jakarta, Indonesia, the likelihood of enjoying sunny weather in January is quite low, with only a 3% chance of sunshine. This trend of overcast skies continues into the following month, February, where the probability rises slightly to 6%. As the year progresses, the chances of basking in the sun gradually improve, peaking in the middle of the year; by July, the likelihood skyrockets to 50%, signaling the arrival of more favorable weather. This pattern underscores a notable shift from the cloudy start of the year towards sunnier and more inviting days as spring and summer approach, making later months like April and May far more appealing for those seeking sunshine.
In Jakarta, Indonesia, the daylight duration exhibits a remarkable consistency throughout the year, with January through March basking in a generous 12 hours of sunlight each day. This period marks the peak of daylight, ideal for outdoor activities and exploration. As the calendar shifts to April and May, the city experiences a slight decrease to 11 hours of daylight, emphasizing the transition into the mid-year months. The trend continues through June, July, and August, where daylight remains at this level. Interestingly, as September rolls around, daylight returns to 12 hours, reminiscent of the early months, and this pattern persists through October, November, and December. Overall, Jakarta enjoys a relatively stable balance of day and night, with only minor fluctuations in daylight duration, creating a predictable rhythm to life in this vibrant city.
In January, Jakarta experiences an average wind speed of 2.2 m/s (5 mph), setting a breezy tone for the year. This gentle wind is a precursor to the slight uptick noted in February, where the speed rises to 2.3 m/s (5 mph). However, as the months progress into the dry season, the winds begin to taper off, with averages dropping to 1.9 m/s (4 mph) in March and reaching a low of 1.5 m/s (3 mph) in June and October. A modest revival in wind speed is observed from November onward, culminating in an average of 2.1 m/s (5 mph) in November. This pattern emphasizes a noticeable seasonal trend: Jakarta’s winds are at their strongest during the early and late parts of the year, providing a refreshing contrast to the stiller, hotter months in between.
Weather in Jakarta varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Jakarta, focusing on differences in temperature, rainfall, humidity, and UV levels.
In January, Jakarta experiences warm temperatures with a minimum of 23°C (74°F), an average of 27°C (80°F), and a maximum of 33°C (92°F). The month sees significant rainfall, totaling 252 mm (9.9 in) over 24 days, with humidity levels around 84%. In comparison, February maintains similar warm temperatures, with a consistent minimum of 23°C (74°F) and an average of 27°C (80°F), but experiences a slight decrease in the maximum temperature at 32°C (90°F). However, February is wetter, recording 328 mm (12.9 in) of precipitation over 28 days, accompanied by a slight increase in humidity to 86%. For more detailed information, check Jakarta weather in February.
In comparing the weather between January and March, we see that both months experience similar temperatures, with minimums around 23°C (73-74°F), daily averages of about 27°C (80-81°F), and maximums peaking at 33°C (92°F). However, March tends to be slightly wetter than January, with precipitation levels reaching 267 mm (10.5 in) compared to January's 252 mm (9.9 in), and rainfall occurring on 29 days in March versus 24 days in January. Humidity remains consistent at 84% for both months, contributing to the overall tropical feel. For a more detailed look at March weather specifics, you can visit Jakarta weather in March.
In January, the weather in Jakarta features consistent temperatures, ranging from a minimum of 23°C (74°F) to a maximum of 33°C (92°F), with an average of 27°C (80°F). However, this month experiences significant rainfall, totaling 252 mm (9.9 in) over 24 days, contributing to a high humidity level of 84%. In contrast, April maintains similar temperature averages but sees a slight decrease in precipitation, with 227 mm (8.9 in) of rain over 26 days and humidity dropping to 81%. While both months share comparable temperature profiles, January is characterized by heavier rainfall and higher humidity levels. For more details on the weather during this time, you can refer to Jakarta weather in April.
In January, Jakarta experiences warmer temperatures with a minimum of 23°C (74°F) and an average of 27°C (80°F), peaking at a maximum of 33°C (92°F). The month is characterized by significant rainfall, with a total of 252 mm (9.9 in) spread over 24 days, contributing to a high humidity level of 84%.
In contrast, May sees slightly milder conditions, starting with a minimum temperature of 24°C (75°F) and averaging 28°C (82°F), reaching up to 34°C (93°F) at its hottest. Rainfall is considerably reduced to 125 mm (4.9 in) over 20 days, leading to a lower humidity of 80%. For more detailed insights into May's weather, check out Jakarta weather in May.
In January, Jakarta experiences a warm climate with temperatures ranging from a minimum of 23°C (74°F) to a maximum of 33°C (92°F) and an average temperature of 27°C (80°F). This month is characterized by significant rainfall, with 252 mm (9.9 in) of precipitation over 24 days and high humidity at 84%. In contrast, June offers a similar temperature profile, with minimums at 23°C (73°F), an average of 27°C (82°F), and maximums reaching 33°C (92°F). However, June is much drier, recording only 79 mm (3.1 in) of rain across 17 days and a slightly lower humidity level at 80%. For a more detailed look at the weather in June, you can check Jakarta weather in June.
In January, Jakarta experiences warmer conditions with average temperatures around 27°C (80°F) and higher humidity at 84%. The month is characterized by significant rainfall, totaling 252 mm (9.9 in) over 24 days, creating a distinctly wet atmosphere. In contrast, July sees a slight dip in minimum temperatures to 21°C (70°F), but maintains an average of 27°C (81°F), similar to January. July is much drier, with only 43 mm (1.7 in) of precipitation over just 10 days, and humidity also decreases to 79%. For a detailed overview of rainfall patterns, you can check Jakarta weather in July.
In January, the weather in Jakarta is characterized by warm temperatures, with a minimum of 23°C (74°F), an average of 27°C (80°F), and a maximum of 33°C (92°F). This month also experiences significant precipitation, with 252 mm (9.9 in) over 24 days, contributing to a high humidity level of 84%. In contrast, August sees slightly cooler conditions, with temperatures ranging from a minimum of 22°C (72°F) to a maximum of 34°C (93°F) and an average of 28°C (82°F). The rainfall is considerably less, totaling 59 mm (2.3 in) over just 8 days, resulting in lower humidity at 77%. For a more detailed look at Jakarta's climate, visit Jakarta weather in August.
In January, Jakarta experiences warmer temperatures with averages around 27°C (80°F) and highs reaching up to 33°C (92°F). The month is also quite humid, with an average humidity level of 84%, and it sees significant rainfall, totaling 252 mm (9.9 in) over 24 days. In contrast, September offers slightly cooler temperatures, with an average of 28°C (82°F) and maximums of 35°C (95°F). It is considerably drier too, with only 71 mm (2.8 in) of precipitation over 12 days and a lower humidity level of 77%. For more detailed information, you can check Jakarta weather in September.
When comparing the weather in January and October, notable differences emerge. January experiences a slightly lower average temperature of 27°C (80°F) compared to October's warmer average of 28°C (83°F). October also boasts higher maximum temperatures, reaching up to 35°C (96°F) compared to January's peak of 33°C (92°F). However, January is significantly wetter, with 252 mm (9.9 in) of rain over 24 days, while October sees only 115 mm (4.5 in) across 18 days. The humidity is also higher in January at 84%, dropping to 78% in October. For more detailed information, you can check out Jakarta weather in October.
In Jakarta, January and November exhibit similar warmth, with January experiencing a minimum temperature of 23°C and an average of 27°C, compared to November's slightly higher average of 28°C. Both months have maximum temperatures that hover around the low to mid-30s, with January peaking at 33°C and November reaching 34°C. However, January tends to be wetter, receiving about 252 mm of rainfall over 24 days, while November sees less precipitation at 195 mm over the same number of days. Humidity levels are also a touch higher in January at 84%, compared to November's 80%. For more detailed insights into the weather patterns, check out Jakarta weather in November.
January and December in Jakarta exhibit striking similarities in temperature, with both months experiencing minimums around 23°C (74°F), averages of approximately 27°C (80°F), and maximum temperatures reaching 33°C (92°F). However, January tends to be slightly wetter, recording 252 mm (9.9 in) of precipitation over 24 days, compared to December's 241 mm (9.5 in) over 26 days. Additionally, the humidity levels are marginally higher in January at 84%, compared to December's 79%. If you're interested in learning more about the specific weather patterns in December, you can check out Jakarta weather in December.
In January, Jakarta experiences a vibrant blend of heat and humidity, with temperatures peaking at a warm 33°C (92°F). This month stands out with its notable precipitation, averaging 252 mm over 24 days, making it one of the wettest periods of the year. With humidity levels hovering around 84%, the air feels particularly muggy, contrasting sharply with the drier months ahead. If you're planning a visit, be prepared for a tropical experience that encapsulates the essence of Jakarta's climate. For a deeper understanding of the weather patterns throughout the year, check out Jakarta Climate.