As Indonesia moves through the early days of February 2026, the nation finds itself at the mercy of unpredictable skies. The Badan Meteorologi, Klimatologi, dan Geofisika (BMKG), Indonesia’s official meteorological agency, has issued a series of forecasts and warnings that paint a picture of widespread weather challenges across the archipelago. From heavy rainfall and thunderstorms in the west to haze and humidity in the heart of Java, and persistent rain in the east, the country’s diverse regions are each bracing for their own unique meteorological hurdles.
On Monday, February 9, 2026, BMKG sounded the alarm for residents in several provinces. According to beritajateng.tv, the agency predicted heavy to very heavy rainfall in Banten, West Java, West Nusa Tenggara, East Nusa Tenggara, South Kalimantan, and South Papua. The warning wasn’t just about rain; BMKG highlighted the potential for thunderstorms and lightning, particularly in cities such as Padang, Bandar Lampung, Yogyakarta, Banjarmasin, and Tanjung Selor. For these areas, the message was clear: stay vigilant, especially if venturing outdoors.
BMKG forecaster Selly Brilian, in a daily update on the agency’s official YouTube channel, emphasized the risks: “We urge the public to increase caution, especially during outdoor activities and travel, due to potential impacts like waterlogging, local flooding, and reduced visibility.” The call for caution wasn’t limited to the areas facing the brunt of the storms. Even in cities expecting only moderate rain—such as Serang, Bandung, and Semarang—or light rain, including Medan, Pekanbaru, Bengkulu, Jambi, Palembang, Jakarta, Samarinda, Palangka Raya, and Surabaya—the agency advised preparedness. After all, even light precipitation can disrupt daily routines, particularly when paired with Indonesia’s notoriously congested urban roads.
Meanwhile, over in the bustling Jabodetabek region—an urban sprawl encompassing Jakarta and its satellite cities—BMKG’s forecasts for February 9, 2026, painted a slightly different, though still cautionary, picture. As reported by KONTAN.CO.ID, the area was expected to experience mostly cloudy skies, with light rain predicted for Bogor, Depok, and Tangerang. Central Jakarta and Bekasi, on the other hand, were forecast to remain under cloud cover. Temperatures in Central Jakarta were set to hover between 25°C and 29°C, with humidity ranging from 69% to 92%. For residents accustomed to sudden tropical downpours, BMKG’s advice was practical: “Prepare for rain by carrying umbrellas or raincoats.” Such simple precautions can make the difference between a routine commute and a soggy ordeal.
On the following day, Tuesday, February 10, 2026, the weather narrative shifted eastward and inland. In Kabupaten Pati, Central Java, the focus was less on rain and more on haze. According to Mitrapost.com, ten subdistricts—including Sukolilo, Kayen, Batangan, Juwana, Jakenan, Pati, Gabus, Margorejo, Wedarijaksa, and Trangkil—were forecast to experience haze (udara kabur), a condition that can reduce visibility to between one and five kilometers. While not as dramatic as a thunderstorm, haze presents its own set of challenges, particularly for motorists and those with respiratory sensitivities.
The haze, BMKG explained, was likely a result of high humidity—between 71% and 93%—and temperatures ranging from 24°C to 29°C. The agency clarified that haze typically occurs when visibility drops to between one and five kilometers without precipitation. Should visibility fall below one kilometer and the sky become heavily overcast, there’s a risk of fog, which can be even more disruptive. In the remaining eleven subdistricts of Pati, including Tambakromo, Winong, Pucakwangi, Jaken, Gembong, Tlogowungu, Margoyoso, Gunungwungkal, Cluwak, Tayu, and Dukuhseti, light rain was anticipated. BMKG’s advice here was twofold: be mindful of the haze, which can quietly disrupt daily activities, and remain alert to the ever-present possibility of more extreme weather.
Further east, in South Sulawesi, residents were advised to brace for what looked to be a thoroughly wet day on February 10, 2026. BMKG’s regional office in Makassar, as reported by detik.com, outlined a forecast of persistent rainfall across the province. The day was expected to begin with light rain in Makassar, Gowa, Kepulauan Selayar, Maros, and Takalar. As the day progressed, light to moderate rain was set to spread across the entire region, intensifying in the afternoon and evening. By nightfall, a long list of areas—including Makassar, Bone, Luwu, Luwu Timur, Luwu Utara, Maros, Palopo, Pangkep, Pinrang, Soppeng, Takalar, Tana Toraja, Toraja Utara, and Wajo—were all on alert for light rain.
The temperature in South Sulawesi was forecast to range from a cool 19°C to a sweltering 35°C, with humidity between 74% and 100%. Winds were expected to blow from the west-northwest at speeds of 10 to 30 kilometers per hour. BMKG issued a special warning for strong winds in the western and southern parts of the province—an important reminder for residents, especially those living in coastal or elevated areas.
Across all these regions, the underlying message from BMKG was one of preparedness and prudence. Whether facing the dramatic spectacle of a thunderstorm, the subtle but insidious impact of haze, or the relentless persistence of rain, Indonesians were reminded that weather is more than a backdrop to daily life—it’s a force that can shape, disrupt, and even endanger routines and livelihoods.
It’s worth noting that these forecasts are more than just numbers and warnings. They reflect a sophisticated network of meteorologists, data analysts, and public communicators working behind the scenes to keep the nation informed and safe. BMKG’s efforts, broadcast across multiple platforms and tailored for diverse regions, are a testament to the evolving science of weather prediction in a country as geographically and climatically varied as Indonesia.
As the week unfolds, Indonesians from Sumatra to Sulawesi, from the haze-tinged fields of Pati to the rain-soaked streets of Makassar, will be watching the skies—and their weather apps—closely. For now, the advice remains the same: stay alert, plan ahead, and don’t forget your umbrella.