Climate Insights for Cianjur

The climate in Cianjur is warm and mild. The average annual temperature is 25°C and approximately 2698mm of precipitation falls per year. Cianjur receives a notable amount of rainfall throughout the year, including during its driest month. Cianjur sits near the equator, so seasonal temperature differences are minimal throughout the year.

Cianjur has relatively stable temperatures year-round, staying within a 9°C range. The warmest month is September, when average highs reach 30°C and the mean temperature sits around 25°C. July is the coolest month, with minimum temperatures around 21°C and an average of 25°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows.

Cianjur is a very wet location, receiving approximately 2698mm of precipitation annually, which averages out to around 225mm per month. The wettest month is February, averaging 352mm of rainfall. November and March also tend to see above-average precipitation. The driest month is August, with just 63mm. That's 290mm less than February, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Cianjur is relatively calm, with an average annual wind speed of 7km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is January, averaging 8km/h, though still comfortable for most outdoor activities. The calmest conditions occur in June, with average winds dropping to 6km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 2km/h between the calmest and windiest months.

It is currently autumn in Cianjur, which began on March 20, 2026. Cianjur sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in September at around 30°C, while the coldest stretch bottoms out in July near 21°C. Winter is next, beginning on June 21, 2026 — 89 days from now.

The best time to visit Cianjur is during July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 25°C with modest rainfall averaging 63mm per month. By contrast, September can be uncomfortably hot with temperatures reaching 30°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Cianjur based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.