The northeast monsoon blowing over the South China Sea, Mekong Basin, Cambodian waters, the Andaman Sea and Cambodia was bringing highland temperatures down to 18 degrees Celsius (°C). Temperatures in the plains and coastal areas were to fall to 19°C from January 4 to 6, 2026.
In its January 4 notice, the Ministry of Water Resources and Meteorology listed the plains as Banteay Meanchey, Battambang, Siem Reap, Pursat, Kampong Chhnang, Kampong Thom, Kampong Cham, Tboung Khmum, Prey Veng, Kandal, Svay Rieng and Takeo provinces, and Phnom Penh. Highland areas comprised Oddar Meanchey, Pailin, Preah Vihear, Kratie, Ratanakiri, Mondulkiri, Kampong Speu and Stung Treng provinces, and the Cardamom and Dangrek ranges. Coastal areas comprised Koh Kong, Preah Sihanouk, Kampot and Kep provinces, and the Bokor range. Average minimum wave height was 0.50 metres and average maximum height was 1.00 metre. By: Nget Pisant
