Last updated: January 18, 2025
West Java, Indonesia, is characterized by a predominantly tropical rainforest climate, classified under the Köppen-Geiger system as Af and Am. This region experiences a remarkable temperature range throughout the year, with a minimum of 12°C (54°F) recorded in August, signifying cooler conditions. The average temperature hovers around 24°C (76°F), providing a comfortable climate ideal for diverse flora and fauna. Notably, the warmer months peak with maximum temperatures reaching 38°C (101°F) in October, highlighting the region's climatic variability and the significant impact it has on local ecosystems and agriculture.
West Java, Indonesia, exhibits a distinct temperature pattern throughout the year, marked by two main seasons: a relatively cooler period from June to August and a warmer phase from September to May. The minimum temperatures fluctuate between 12°C (54°F) in July and August and climb to around 17°C (63°F) in the early months of January and February. Average temperatures remain fairly stable, generally hovering around 24°C (76°F), with slight increases in March through May. Maximum temperatures peak in October and November, reaching as high as 38°C (101°F), while the region experiences its warmest conditions in September, with maximums of 37°C (100°F). This seasonal variability contributes to a rich biodiversity, influencing agricultural practices and local lifestyles in West Java.
Puncak experiences temperatures ranging from a minimum of 18°C (65°F) in August to a maximum of 32°C (90°F) in January, making it a relatively mild destination year-round monthly temperatures in Puncak. In contrast, Bogor has a slightly warmer climate, with temperatures varying from a minimum of 19°C (66°F) in July to a peak of 35°C (95°F) in October, indicating a more pronounced warmth during specific months monthly temperatures in Bogor. Meanwhile, Bandung offers cooler temperatures, with a minimum of 14°C (57°F) in August and a maximum of 29°C (85°F) in November, providing a comfortable environment for visitors monthly temperatures in Bandung.
West Java, Indonesia, experiences a pronounced wet season characterized by heavy rainfall, particularly from January to March, where monthly precipitation exceeds 385 mm (15.2 in). January takes the lead with 385 mm, and February follows closely with 412 mm—notable amounts that contribute to the region's lush greenery. The frequency of rainy days during these months ranges from 24 to 29 days, resulting in a consistently damp climate, vital for sustaining the diverse ecosystems and agriculture for which West Java is known.
As the year progresses into the dry season, precipitation significantly declines, particularly from June to August. Rainfall decreases to a minimum, with July and August recording only 61 mm (2.4 in) and 55 mm (2.2 in), respectively, reflecting the driest months of the year with just 12 rainy days each. However, September marks a slight uptick in precipitation, rising to 112 mm (4.4 in), while October and November see a resurgence of rainfall, with 177 mm (7.0 in) and 382 mm (15.1 in), respectively. This seasonal variability in precipitation not only shapes the landscape but also influences agricultural cycles and water supply within the region.
In West Java, Indonesia, sunshine duration exhibits a distinct seasonal trend, with a steady increase from the early months of the year leading up to the dry season. January begins the year with 202 hours of sunshine, but this figure steadily rises, reaching 273 hours in March and peaking at 316 hours in both July and August. The transition into dry weather not only enhances sunshine availability but also provides ideal growing conditions for agriculture and tourism in the region. May, a month prior to the peak, also enjoys an impressive 303 hours of sunlight, indicating a gradual buildup of clear skies and favorable conditions.
As the year progresses into the latter months, sunshine duration begins to decline, particularly from October onwards, when hours drop to 298 hours and continue to fall to 253 hours in both November and December. Despite the loss of daylight hours, these months remain integral to West Java's climatic rhythm. The variation in sunshine throughout the year not only influences local agricultural cycles, offering greater productivity during sunnier months, but also plays a crucial role in determining popular tourist seasons, showcasing the region's vibrant landscapes under the sun.
West Java, Indonesia, is characterized by a consistently high UV Index throughout the year, reflecting the region's tropical climate and proximity to the equator. The UV Index peaks in February and March at 17, categorizing the exposure as extreme and indicating that unprotected skin can burn in just 10 minutes. This extreme UV radiation level is a crucial factor for residents and visitors alike, emphasizing the importance of sun protection measures, such as sunscreen, protective clothing, and seeking shade during sunny periods.
As the year progresses, the UV Index remains notably high, with values ranging from 11 to 17 across all months. Even in the mid-year months of June and July, when the index slightly dips to 11 and 12, the exposure is still considered extreme, warranting vigilant sun safety practices. The UV Index gradually decreases towards the end of the year, settling at 15 in November and December. This persistent threat underscores the need for awareness regarding sun safety, regardless of the season, to protect against the harmful effects of UV radiation in this vibrant region.
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In West Java, Indonesia, daylight duration presents a unique consistency throughout the year, reflecting the region's equatorial position. For the majority of the year—from January through March and again from September to December—West Java enjoys approximately 12 hours of daylight each day. This stable exposure to sunlight fosters a predictable environment, supporting the region's diverse ecosystems and agricultural practices, which thrive under extended daylight conditions.
However, during the months of April to August, daylight hours slightly decrease to around 11 hours per day. This minor reduction occurs during the dry season, which may influence various ecological and agricultural cycles, as well as the daily routines of residents. Despite this decrease, the overall stability of daylight duration throughout the year allows for a rich variety of seasonal activities and contributes significantly to the balanced climate that defines West Java.
Ampera, Indonesia, experiences a tropical climate characterized by warm temperatures and significant rainfall throughout the year. Average temperatures range from a minimum of 14°C (58°F) in July and August to a maximum of 31°C (88°F) in the warmer months like January, March, and November. Rainfall peaks in February with 465 mm (18.3 in) and tapers off during the drier months of June to August, where it drops to around 73 mm (2.9 in). Sunshine is abundant, particularly from May to August, averaging over 300 hours per month. For more detailed information about the climate in Ampera, visit Ampera climate.
Ancol, Indonesia experiences a tropical climate characterized by warm temperatures and significant rainfall throughout the year. Temperature ranges from a minimum of 15°C (60°F) in July and August to a maximum of 32°C (89°F) in April. The wettest months are January and February, with precipitation exceeding 400 mm, while the driest months are June and July, receiving less than 100 mm. Despite the rain, Ancol enjoys ample sunshine, particularly from May to August, when it receives over 300 hours of sunlight. For more details, visit Ancol climate.
Bandung, Indonesia, features a tropical highland climate characterized by mild temperatures year-round, with average monthly temperatures ranging from 21°C (71°F) to 23°C (73°F). The city experiences significant rainfall, particularly from November to March, with precipitation peaking at 441 mm (17.4 in) in March. Dry season months such as July and August see much lower rainfall, around 77 mm (3.0 in) and 74 mm (2.9 in), respectively. Sunshine hours fluctuate throughout the year, with the sunniest months being July and August, offering over 319 hours of sunshine. For more details, visit Bandung climate.
Banjaran, Indonesia, experiences a tropical climate characterized by warm temperatures and significant rainfall throughout the year. Average monthly temperatures range from 21°C (71°F) in the cooler months to a peak of 23°C (73°F) in May. The wettest months are November and March, receiving approximately 472 mm (18.6 in) and 441 mm (17.4 in) of rain, respectively. Despite the frequent rain, sunshine hours are generous, particularly in July and August, with over 319 hours of sun each month. For more detailed information, visit Banjaran climate.
The climate in Barubandung, Indonesia, is characterized by a tropical monsoon pattern, with temperatures averaging around 24°C (75°F) year-round. January to March and November see the highest precipitation, peaking in November with 461 mm (18.1 in), while the driest months are July and August with only 50 mm (2.0 in) and 53 mm (2.1 in), respectively. Sunshine is abundant, particularly from May to August, where monthly hours exceed 300. The annual temperature ranges from a minimum of 15°C (60°F) in August to a maximum of 31°C (87°F) in April. For more detailed insights, visit Barubandung climate.
Bogor, Indonesia, experiences a tropical climate characterized by warm temperatures and significant rainfall throughout the year. Average temperatures range from a minimum of 19°C (66°F) in July and August to a maximum of 35°C (95°F) in October, with a consistent average around 26°C (79°F). The wettest months are February and November, with precipitation reaching up to 350 mm (13.8 in) and 300 mm (11.8 in), respectively. Despite the heavy rainfall, Bogor enjoys ample sunshine, particularly from May to August, when sunlight can exceed 300 hours per month. For more detailed information, visit Bogor climate.
Bokor, Indonesia experiences a tropical climate characterized by warm temperatures and significant rainfall throughout the year. Temperatures generally range from a minimum of 16°C (62°F) in August to a maximum of 31°C (87°F) in April and May. The wettest months are November and April, with precipitation peaking at 522 mm (20.6 in) and 384 mm (15.1 in) respectively. Sunshine hours are most abundant from July to August, with around 317 to 319 hours per month. For more detailed climate information, visit Bokor climate.
The climate in Cisarua, Indonesia, is characterized by a tropical rainforest profile, with average temperatures ranging from 20°C (68°F) to 32°C (90°F) throughout the year. The region experiences significant rainfall, particularly from January to April, with January's precipitation peaking at 350 mm (13.8 in). The drier months, particularly July and August, bring less than 70 mm (2.8 in) of rain, while sunshine hours range from 223 in January to 321 in August. Despite substantial rainfall, visitors can expect a warm, humid climate year-round. For more details, visit Cisarua climate.
Citenjo, Indonesia, experiences a tropical climate characterized by warm temperatures year-round, with averages ranging from 26°C (78°F) to 27°C (81°F). The region sees its highest rainfall between January and March, peaking at 376 mm (14.8 in) in both January and March, while June to August is relatively drier, with only about 20 mm (0.8 in) in August. Sunshine is plentiful, particularly during the dry months, with July and August averaging around 318 hours and 321 hours of sunlight, respectively. For more detailed information, visit Citenjo climate.
Lembang, Indonesia experiences a tropical climate characterized by warm temperatures and significant rainfall, particularly from January to March. Average temperatures range from 24°C (76°F) to 25°C (77°F), with maximums reaching up to 34°C (94°F) in October. The wet season peaks in November and December with heavy rainfall, averaging around 377 mm (14.8 in) each month. Despite this, Lembang enjoys substantial sunshine, especially in July and August, which can see up to 321 hours of sun. For more information, visit Lembang climate.
Maribaya, Indonesia, experiences a tropical climate characterized by warm temperatures and significant rainfall. Monthly average temperatures range from 23°C (74°F) to a maximum of 33°C (91°F), peaking in October and November. The region's wettest months occur from January to March, with precipitation exceeding 500 mm (19.8 in) in March, while June and July are the driest months with minimal rainfall. Sunshine hours are abundant, particularly between May and August, ensuring ample sunlight year-round. For more detailed weather patterns, visit Maribaya climate.
The climate in Pananjung, Indonesia, is characterized by warm temperatures year-round, with average monthly highs ranging from 25°C (77°F) in July and August to 30°C (86°F) in February through May. Rainfall peaks in November with 406 mm, while the driest months are July and August, receiving about 91 mm and 88 mm of precipitation, respectively. Sunshine hours are plentiful, especially from May to August, with July averaging 315 hours of sunlight. This tropical climate makes Pananjung an appealing destination for those who enjoy warm weather and lush greenery. For more details, visit Pananjung climate.
Pangasinan, Indonesia, experiences a tropical climate characterized by warm temperatures and significant rainfall throughout the year. Monthly average temperatures range from 24°C (75°F) in the cooler months of July and August to around 27°C (80°F) in April, with maximum temperatures reaching up to 33°C (91°F) in April and December. Rainfall peaks during the first half of the year, with January and February receiving over 370 mm (14.6 in) of precipitation. Sunshine is abundant in mid-year, particularly in July and August, where it exceeds 300 hours. For more detailed information, visit Pangasinan climate.
Pelabuhanratu, Indonesia experiences a tropical climate characterized by warm temperatures and significant rainfall throughout the year. Average temperatures range from a minimum of 19°C (66°F) in July and August to a maximum of 32°C (89°F) in November, with consistent highs around 30°C (86°F). The region receives substantial precipitation, particularly during the wettest months of January (369 mm) and December (416 mm), while July and August are the driest months with just 53 mm and 42 mm of rain, respectively. Sunshine hours vary, peaking in August with 321 hours, contributing to lush landscapes. For more detailed information, visit Pelabuhanratu climate.
Puncak, Indonesia experiences a tropical climate characterized by consistent temperatures throughout the year, with averages ranging from 25°C to 27°C (77°F to 81°F). The region sees its highest rainfall in November, accumulating around 450 mm (17.7 in), while the driest month is August with just 34 mm (1.3 in). Sunshine is abundant, peaking in July and August with around 320 hours of sun. The temperature can drop slightly during the cooler months of June and July, making it a pleasant destination year-round. For more details, visit Puncak climate.
Puncakdago, Indonesia experiences a tropical climate with warm temperatures year-round, typically ranging from a minimum of 16°C (62°F) in August to a maximum of 33°C (91°F) in November. The average temperature hovers around 24°C (75°F), providing a mild environment. Precipitation is notably highest from January to March, with January alone receiving about 340 mm (13.4 in) of rain, while July and August are the driest months. Sunshine is abundant, peaking in July and August with around 317 hours of sunlight. For more details on the climate, visit Puncakdago climate.
Putrajawa, Indonesia, experiences a tropical climate characterized by high temperatures and significant rainfall throughout the year. Average temperatures range from a minimum of 15°C (59°F) in July to a maximum of 33°C (91°F) in October, with consistent averages around 23-24°C (73-75°F). Rainfall is most abundant from January to March, peaking at 502 mm (19.8 in) in March, while the dry months are from June to August, with only about 26-59 mm (1.0-2.3 in) of precipitation. The region enjoys ample sunshine, particularly from May to August, with July boasting the highest at 319 hours. For more detailed climate information, visit Putrajawa climate.
Surabaya, Indonesia experiences a tropical climate characterized by high temperatures and significant humidity. Monthly average temperatures range from 23°C (74°F) to 24°C (75°F), with maxima peaking at 33°C (91°F) in October and November. The city witnesses substantial rainfall, particularly from January to March, with January receiving the most at 461 mm (18.2 in). Conversely, the dry months of June to August see limited precipitation, averaging only 26 mm (1.0 in) in August. Visitors can enjoy abundant sunshine, especially from May to August, making it an ideal time to explore the region. For more detailed weather information, check Surabaya climate.
Tamansari, Indonesia experiences a tropical climate characterized by warm temperatures and significant rainfall throughout the year. Average temperatures hover around 25-26°C (77-79°F), with maxima reaching up to 32°C (90°F) in the warmer months. The region sees its highest precipitation from January to February and November, with January recording up to 391 mm (15.4 in) of rain. Despite the rain, sunny days are frequent, particularly from May to August, where sunshine hours peak at over 300 hours monthly. For more detailed information, visit Tamansari climate.
In conclusion, West Java, Indonesia, showcases a compelling climatic profile marked by consistent temperature ranges, significant precipitation patterns, high sunshine duration, extreme UV Index levels, and stable daylight hours. The region’s tropical rainforest climate not only supports vibrant ecosystems and diverse agriculture but also imposes essential considerations for sun safety and seasonal weather preparedness. Understanding these climatic nuances allows residents, visitors, and policymakers to navigate daily life and engage with the natural surroundings effectively while promoting sustainable practices that honor West Java's rich environmental heritage.