This Saturday Minimum Temperature In Dieng Reaches Minus 2 Degree Celsius

Frozen stocks stuck to the grass in the field near Setyaki Temple, Saturday (19/7/2025) morning, when the surface minimum temperature reached minus 2 degrees Celsius. BETWEEN ANTARA/HO-Dinbudpar Banjarnegara

BANJARNEGARA - On Saturday morning today, the Meteorology, Climatology and Geophysics Agency (BMKG) of Banjarnegara Geophysics Station noted that the minimum temperature in the Dieng Plateau, Banjarnegara Regency, Central Java, reached minus 2 degrees Celsius which caused the emergence of the phenomenon of upas dew (frequent).

Head of BMKG Banjarnegara Geophysics Station Hery Susanto Wibowo said that the extreme temperature was recorded on the grass surface at the Arjuna Temple Complex, Dieng Kulon Village, Batur District, Banjarnegara.

"From our observations, the surface temperature fell to minus 2 degrees Celsius, while the minimum air temperature around Dieng ranged from 2 to 6 degrees Celsius," he said.

He said, since July 2025, the phenomenon of upas dew has occurred three times during the dry season this year, namely on July 10 and 11, which reached 0 degrees Celsius and July 18, which reached minus 2 degrees Celsius.

He acknowledged that the historical record of extreme temperatures that occurred in Dieng had not previously been fully documented by the BMKG Banjarnegara Geophysics Station.

According to him, this is because the BMKG Banjarnegara Geophysics Station can only directly access the surface temperature monitoring equipment since 2025 because previously, the equipment was operated actively by the Semarang BMKG.

However, based on general observations and limited data, he said, the minimum temperature in the area could reach between minus 2 degrees Celsius to minus 4 degrees Celsius in the dry season.

BMKG estimates that the peak of the 2025 dry season in the Dieng region will occur in July-August, so that the potential for extreme temperature reduction and upas dew events still have the potential to occur.

"Conditions like this are quite extreme for the tropics. Usually the minimum temperature in the region is about 20-30 degrees Celsius during the day," he said.

In this regard, he appealed to the public, especially farmers and tourism sector players, to increase awareness of the impact of upas dew.

vulnerable plants such as potatoes need to be protected, and tourists are expected to prepare warm clothes so that health problems do not occur due to extreme cold weather, "said Hery.

On a separate occasion, Head of the Technical Implementation Unit (UPT) Dieng of the Department of Culture and Tourism (Dinbudpar) of Banjarnegara Regency Sri Utami said the phenomenon of freezing on Saturday (19/7) morning was clearly visible in the field area near the Setyaki Temple.

"D field near Setyaki Temple is quite thick, if in Arjuna Temple there is also, but thin," he said.

According to him, this phenomenon has attracted the interest of tourists who have come to the location since morning because it happens to be the weekend, so that many tourists visit Dieng.

Because it still has the potential to occur, he said, tourists who want to enjoy the phenomenon of frozen dew are advised to be at the location at around 05.30 WIB.

"Don't forget to use a jacket, head covering and gloves. We also recommend eating and drinking quite a bit because it's very cold," concluded Utami.