The Cilacap Weather is a unique mix between the dynamic Indian seaboard climate and the city industrial climate — Cilacap is the only district in Central Java that has a coastline facing the Indian Ocean, and is the site of the biggest petrochemical industry and oil refinery in Indonesia. Weather Cilacap which is directly exposed to wind and waves of the Indian Ocean making weather monitoring in this city crucial not only to citizens, but also to the operational industry worth trillions of rupees in this region.
Key Takeaways
- Cilacap is the only district of Central Java with beaches directly facing the Indian Ocean. — climate and waves are deeply affected by the dynamic of the ocean.
- The Pertamina Cilacap (largest in Indonesia) refines the weather conditions for operational and job safety.
- Central Java BMKG provides forecasts in bmkg.go.id / weatherman / 33.01.
- Average temperatures 24-33 ° C with high humidity due to the position on the southern coast of Java.
- Indian Ocean waves south of Cilacap can be very high in the western season. — It's dangerous for fishermen.
Weather Cilacap and Pertamina plant
Pertamina Cilacap refinery processing about 348,000 barrels of raw oil a day — Supply about 34% of Indonesia's fuel needs. This huge operation refinery depends heavily on safe weather conditions: heavy rain, lightning, and high winds can disrupt the refinery process and pose a safety risk. Raw oil shipments to the Cilacap refinery also rely on sea conditions. — The great tanker who enters the Strait of Cilacap must await adequate wave conditions.
In addition to industry, the weather of the Cilacap is also relevant to thousands of fishermen in the Cilacap Liaison that depends on the sea conditions. Monitor current weather conditions through Today's weather and 7-day forecast We are.
Today's Cilacap Weather Check
- Central Java BMKG — bmkg.go.id / weather
- BMKG Info Application — Initial warning of the Indian Ocean and extreme weather
- BMW Marine — Viewer Indian Ocean waves for fishermen and shipments to Cilacap
- Cuaca.in — Today's weather and 7-day forecast
General Questions about the Weather of Cilacap
What's Cilacap's average temperature?
Cilacap average temperature range 24-33 ° C The position on the southern seaboard Java is creating relatively high humidity (75-85%) throughout the year — It makes the Cilacap heat heavier than its actual temperature. In the dry season with the southern winds of the Indian Ocean, there was a slight coolness in the region near the shore.
When's the tallest sea wave?
The waves in the southern waters of the Highest Cilacap of November- March. — The period of the high winds from the northwest carried the great waves of the Indian Ocean. In this period, waves can reach 3- 6 meters and are very dangerous for small fishermen. The East (June-August) is quieter relative, but the 2-4 meter wave is still common in the South Java Indian Ocean.
Is Cilacap tsunami-prone?
Cilacap is in a potential tsunami zone from a subduction in Java Palung just south of Java, the south coast of Cilacap could impact a tsunami within 20-40 minutes after a massive earthquake in the subduction zone. Recognize the tsunami's natural signs, know the nearby evacuation routes and evacuation points, and always monitor the BMKG / InateWS warning when there's a significant earthquake south of Java.
When's the rainy season in Cilacap?
The season of Cilacap rain takes place October-April — It's longer than the cities of Northern Central Java due to the influence of the Indian Ocean that provides the water source for almost all year. A relatively high rainfall of Cilacap (2,500-3,500 mm / year) than the drier coastal cities of Java.
What was the severe weather impact on the Pertamina Cilacap plant?
Extreme weather — Lightning, high winds above 40 km / h, or sudden storm connective — could trigger a safety procedure at the refinery that resulted in a temporary reduction in production capacity. A heavy fog in the Strait of Cilacap could delay the arrival of a tanker carrying crude oil. High waves above 2.5 meters in the Strait of Cilacap usually stop tanker loading activity at the Single Point Mooring Pier.
Understand patterns Cilacap weather — between Indian Ocean dynamics and industrial climate — It's important to whoever lives and works in Java's Southern Industrial City. Keep monitoring Today's weather and 7-day forecast We are.

