August in Sibolga averages a daily high of 31.7°C with nights around 21.6°C. Expect roughly 18 wet days totalling 362mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Sibolga is December–July.
Based on SIBOLGA PINANGSORI, ID (24km), 1995–2024. 23 years of August data.