Bekasi Climate & Monthly Temperature Overview – Indonesia

Temperature and Humidity

Bekasi experiences a tropical climate with consistently high temperatures throughout the year. The average temperature ranges from 25°C to 32°C (77°F to 90°F), with little variation between seasons. Humidity levels are also high, averaging around 80%, making the air feel muggy and uncomfortable at times.

Rainfall and Monsoon Season

Bekasi receives a significant amount of rainfall, with an average annual precipitation of 2,500 millimeters (98 inches). The majority of the rain falls during the monsoon season, which occurs from October to April. During this time, heavy downpours are common, and flooding can occur in low-lying areas. The dry season, from May to September, is characterized by less rainfall, but the humidity remains high.

Monthly Temperatures

Bekasi experiences a tropical monsoon climate, with distinct wet and dry seasons. The average monthly temperatures throughout the year range from a minimum of 23°C (73°F) in January to a maximum of 34°C (93°F) in October. The hottest months are typically April to October, when temperatures consistently hover above 30°C (86°F). Conversely, the cooler months occur from November to March, with temperatures averaging around 26°C (79°F).

Seasonal Variations

The wet season in Bekasi extends from October to April, bringing heavy rainfall and thunderstorms. During this time, the average humidity levels are high, reaching up to 80%. The dry season, on the other hand, lasts from May to September and is characterized by less frequent rainfall and lower humidity. However, Bekasi does experience occasional thunderstorms even during the dry season.

Overall Climate

Overall, Bekasi’s climate is hot and humid throughout the year, with minimal fluctuations in temperature. The wet season brings significant rainfall, while the dry season offers slightly cooler and less humid conditions. Travelers visiting Bekasi should be prepared for the hot and humid conditions, especially during the wet season. Light clothing and plenty of water are essential to stay comfortable.

Cloud Types in Bekasi, Indonesia

Bekasi, a city in West Java, Indonesia, experiences a variety of cloud types throughout the year. The most common cloud formations include cirrus, cumulus, and stratus clouds. Cirrus clouds are thin, wispy clouds composed of ice crystals, often appearing at high altitudes. Cumulus clouds are puffy clouds that resemble cotton balls and are associated with fair weather. Stratus clouds are flat, gray clouds that cover large areas of the sky, typically indicating overcast or drizzly conditions.

Seasonal Variations in Cloud Cover

The cloud cover in Bekasi varies depending on the season. During the dry season (May to October), the sky is generally clear with occasional cirrus or cumulus clouds. In contrast, the rainy season (November to April) brings increased cloud cover with frequent stratus and cumulus congestus clouds, leading to higher humidity and precipitation. The presence of clouds plays a significant role in regulating surface temperatures, as low clouds can block sunlight, while high clouds allow solar radiation to reach the ground, influencing local weather patterns.

Rainfall Patterns
Bekasi, Indonesia, experiences a tropical monsoon climate with distinct wet and dry seasons influenced by the Asian monsoon system. During the monsoon season, which typically lasts from October to April, abundant rainfall prevails. The average annual precipitation in Bekasi exceeds 3,000 millimeters (118 inches), with the wettest months being December, January, and February. During these months, daily rainfall amounts can reach up to 100 millimeters (4 inches) or more. In contrast, the dry season, from May to September, is characterized by significantly reduced precipitation, with monthly rainfall averaging less than 100 millimeters (4 inches).

Seasonal Variations
The wet season in Bekasi is associated with the northwest monsoon, which brings moisture-laden air from the Indian Ocean. During this time, convective thunderstorms and heavy downpours are frequent. The dry season, on the other hand, is influenced by the southeast trade winds, which suppress rainfall and bring drier conditions. However, even during the dry season, occasional showers or isolated thunderstorms can occur, particularly towards the end of the season.

Historical Trends

Rainfall patterns in Bekasi, Indonesia, have undergone significant variations over the past few decades. Historically, the region has experienced a tropical monsoon climate, with distinct wet and dry seasons. During the wet season, which typically lasts from October to April, heavy rainfall and frequent thunderstorms are prevalent. On the other hand, the dry season, from May to September, is characterized by relatively less rainfall and more sunshine.

Recent Patterns and Climate Change

In recent years, rainfall patterns in Bekasi have shown signs of变化. Studies indicate an overall increase in annual rainfall, with more intense and frequent rainfall events. This increase has been attributed to the effects of climate change, as rising global temperatures lead to changes in atmospheric circulation patterns and increased moisture in the atmosphere. As a result, extreme rainfall events, such as flash floods and heavy downpours, have become more common in Bekasi.

Impacts and Adaptation

The changing rainfall patterns in Bekasi have had significant impacts on the local population and infrastructure. Increased rainfall has led to more frequent flooding, which can disrupt transportation, damage property, and pose health risks. To address these challenges, the government and local authorities have implemented various adaptation measures, including improved flood drainage systems, early warning systems, and community education programs.

Unprecedented Snowfall Event

In an extraordinary meteorological anomaly, the city of Bekasi, Indonesia, located in the tropical lowlands of West Java, experienced unprecedented snowfall on July 25, 2023. The snowfall, which lasted for approximately an hour, blanketed the city in a thin layer of white powder, leaving cars, trees, and buildings coated in a surreal winter wonderland. The sight of snow in the heart of the tropics stunned residents who had never witnessed such a rare and beautiful phenomenon.

Meteorological Puzzle

The snowfall was attributed to an unusual combination of atmospheric conditions. A cold front collided with warm, moist air from the Pacific Ocean, creating a layer of cold air near the ground. Simultaneously, a low-pressure system channeled cold air from the mountains into the region, causing temperatures to plummet rapidly. The moisture in the warm air condensed and crystallized, forming snowflakes that fell onto Bekasi. The snowfall created picturesque scenes as snow accumulated on rooftops, lawns, and vehicles, providing a breathtaking contrast to the palm trees and lush vegetation that typically characterize the area.

Sunlight Intensity in Bekasi, Indonesia

Bekasi, Indonesia, experiences significant sunlight intensity throughout the year due to its equatorial location. The city receives an average of 12 hours of sunshine per day, with the sunniest months being June, July, and August. During these months, the average daily solar radiation reaches a peak of approximately 6 kilowatt-hours per square meter. The high sunlight intensity makes Bekasi an ideal location for solar energy production.

Cloud Cover and Solar Energy Potential

Despite the abundant sunshine, cloud cover can impact the amount of solar radiation reaching the ground in Bekasi. During the rainy season, from October to April, cloud cover can reduce sunlight intensity by up to 50%. This variability can affect the efficiency of solar energy systems and should be considered when planning solar installations. However, Bekasi’s high insolation during the dry season compensates for the reduced sunlight during the rainy season, making it a viable location for solar energy development.

Moon Visibility in Bekasi, Indonesia

Bekasi, Indonesia, is well-positioned for moon observation due to its clear skies and favorable weather conditions. During most nights, the moon is clearly visible in Bekasi, allowing residents to witness its various phases and formations. The best time to observe the moon is typically during the evening and early morning hours, when the sky is darkest and the moon’s illumination is most prominent.

However, the visibility of the moon in Bekasi is not constant throughout the month. During the new moon phase, the moon is not visible from Earth as it is directly between the Earth and the sun. As the moon moves through its phases, it gradually becomes more visible in Bekasi, reaching its peak illumination during the full moon phase. During this time, the full moon is visible for the entire night, casting a bright glow across the Bekasi skyline.

Humidity Levels in Bekasi

Bekasi, a densely populated city in Indonesia, experiences varying levels of humidity throughout the year. The city’s tropical climate is characterized by warm temperatures and high humidity, influenced by its proximity to the equator. During the wet season, which typically lasts from October to April, humidity levels can reach up to 90%. This can create an uncomfortable and oppressive atmosphere, making outdoor activities less enjoyable. The high humidity also contributes to the growth of mold and mildew, which can affect indoor air quality.

Seasonal Variations in Humidity

Humidity levels in Bekasi vary significantly depending on the time of year. During the dry season, from May to September, humidity levels typically drop to around 60-70%. This makes for more pleasant and comfortable outdoor conditions. However, during the wet season, the city experiences heavy rainfall, which increases humidity levels. The high humidity during this period can make it feel even hotter than it actually is, leading to heat stress and discomfort. Air conditioning and proper ventilation are essential during this time to maintain a comfortable indoor environment.

Wind Patterns in Bekasi

Bekasi, a city located in the West Java province of Indonesia, experiences distinct seasonal wind patterns. During the dry season, from April to October, the prevailing winds are easterly. These winds originate from the Australian continent and bring dry, stable air to the region. They are typically moderate in strength, with speeds ranging from 10 to 20 kilometers per hour. The easterly winds contribute to the relatively low humidity and clear skies characteristic of the dry season in Bekasi.

Seasonal Variations in Wind Speed and Direction

During the wet season, from October to April, the prevailing winds shift to a northwesterly direction. These winds originate from the Indian Ocean and carry warm, moist air to Bekasi. They are generally stronger than the easterly winds, with speeds reaching up to 30 kilometers per hour. The northwesterly winds also bring increased precipitation to the region, resulting in the heavier rainfall experienced during the wet season. The transition between the dry and wet seasons is marked by a period of high winds, known locally as “angin kencang.” These strong winds can cause power outages and damage to buildings and infrastructure.

Best Time to Visit Bekasi for Favorable Weather:

Bekasi, a bustling city in Indonesia, experiences a tropical monsoon climate with distinct wet and dry seasons. The best time to visit Bekasi for ideal weather conditions is during the dry season, which typically lasts from May to October. During this time, rainfall is minimal, and the humidity levels are comfortable, making it pleasant to explore the city’s attractions and engage in outdoor activities. Temperatures range between 25 and 32 degrees Celsius (77-90 degrees Fahrenheit), providing warm and sunny days perfect for sightseeing and enjoying outdoor markets and parks.

Best Time to Visit Bekasi for Cultural Events and Festivals:

Aside from favorable weather, certain times of the year are particularly special in Bekasi due to cultural events and festivals. The Bekasi City Anniversary, celebrated in March, is a vibrant festival showcasing the city’s rich cultural heritage through traditional performances, parades, and food stalls. In August, the Bekasi International Food Festival delights visitors with a wide array of culinary offerings from both Indonesia and around the world. During the Muslim holy month of Ramadan, from April to May, the city transforms with lively nighttime markets and communal prayers, offering a unique opportunity to experience the local culture and traditions.

Potential of Solar Energy in Bekasi

Bekasi, a city in West Java, Indonesia, boasts significant potential for solar energy utilization due to its equatorial location, which ensures ample sunlight throughout the year. The city receives an average global horizontal irradiance of approximately 4.5 kWh/m²/day, making it suitable for solar photovoltaic (PV) systems. Bekasi’s urban landscape, with numerous rooftops and open spaces, offers ample areas for PV installations, supporting decentralized energy generation.

Benefits and Challenges

Harnessing solar energy in Bekasi offers several benefits, including reducing reliance on fossil fuels, mitigating carbon emissions, and contributing to energy security. Furthermore, solar energy can provide electricity access to remote and underserved areas within the city. However, there are also challenges associated with solar energy adoption. The initial investment costs for PV systems may be substantial, and proper maintenance is crucial to ensure optimal performance over their lifetime. Additionally, the intermittent nature of solar energy requires energy storage solutions or integration with other energy sources to ensure reliable power supply.

Northern Region

Bekasi’s northern region is characterized by a flat and low-lying topography, with elevations typically ranging from sea level to 10 meters above sea level. This area is highly developed, encompassing dense urban settlements, industrial zones, and agricultural lands. The flat terrain facilitates urban expansion and transportation infrastructure, making it a significant hub for economic activities.

Southern Region

In contrast to the north, Bekasi’s southern region is dominated by hilly and mountainous terrain. The southernmost area, known as the Sentul Hills, features rolling hills and undulating landscapes. The elevations in this region gradually increase towards the south, creating a picturesque and scenic environment. The higher elevations provide panoramic views of the surrounding countryside and offer a respite from the bustling urban areas. The mountainous terrain also supports recreational activities, such as hiking, mountain biking, and nature exploration.

Halim Perdanakusuma International Airport (HLP)

Halim Perdanakusuma International Airport (HLP) is the closest airport to Bekasi, Indonesia. It is situated approximately 15 kilometers (9 miles) from the city center and is easily accessible via the Bekasi Eastern Toll Road. HLP primarily handles domestic flights, connecting Bekasi to major cities within Indonesia such as Jakarta, Surabaya, and Makassar. Additionally, it serves limited international flights to neighboring countries like Singapore and Malaysia. The airport features modern facilities, including a spacious terminal with duty-free shops, restaurants, and lounge areas.

Soekarno-Hatta International Airport (CGK)

Soekarno-Hatta International Airport (CGK) is the main international airport serving both Bekasi and Jakarta. It is located approximately 50 kilometers (31 miles) from Bekasi, about an hour’s drive away. CGK is a major hub for domestic and international flights, offering a wide range of destinations worldwide. The airport has three terminals, providing ample space for passenger traffic. It features extensive facilities such as duty-free shops, restaurants, currency exchange services, and comfortable lounges. CGK provides convenient transportation options to Bekasi, including shuttle buses, taxis, and ride-hailing services.

Population and Demographics

Bekasi is a city located in Indonesia’s West Java province. It is the second most populous city in the Jakarta Metropolitan Area, with an estimated population of over 2.8 million as of 2023. The city is home to a diverse population, with the majority being Betawi and Javanese. There are also significant populations of Sundanese, Chinese, and other ethnic groups. Bekasi has experienced rapid population growth in recent years, primarily due to its proximity to the capital city of Jakarta and the availability of affordable housing.

Culture and Attractions

Bekasi is a vibrant city with a rich cultural heritage. The city is home to several historical and cultural landmarks, including the Bekasi Grand Mosque, the Bekasi City Hall, and the Bekasi Museum. There are also numerous shopping malls, entertainment centers, and parks. Bekasi is known for its culinary delights, and visitors can enjoy a wide range of local and international cuisine at the city’s many restaurants and street food stalls. The city’s cultural landscape is influenced by its diverse population, and festivals and celebrations reflect the city’s multi-cultural character.