Climate Insights for Ruteng

The climate in Ruteng is warm and mild. The average annual temperature is 23°C and approximately 2775mm of precipitation falls per year. February is the wettest month, receiving around 458mm of rainfall. Ruteng sits near the equator, so seasonal temperature differences are minimal throughout the year.

Ruteng sees moderate temperature variation throughout the year, ranging from 18°C to 30°C. The warmest month is October, when average highs reach 30°C and the mean temperature sits around 24°C. August is the coolest month, with minimum temperatures around 18°C and an average of 23°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows.

Ruteng is a very wet location, receiving approximately 2775mm of precipitation annually, which averages out to around 231mm per month. The wettest month is February, averaging 458mm of rainfall. March and December also tend to see above-average precipitation. The driest month is August, with just 23mm. That's 435mm 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.

Ruteng is relatively calm, with an average annual wind speed of 6km/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 9km/h, though still comfortable for most outdoor activities. The calmest conditions occur in May, with average winds dropping to 5km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 4km/h gap between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 5km/h in winter, 6km/h in spring, 8km/h in summer, 6km/h in autumn.

It is currently autumn in Ruteng, which began on March 20, 2026. Ruteng sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in October at around 30°C, while the coldest stretch bottoms out in August near 18°C. Winter is next, beginning on June 21, 2026 — 89 days from now.

The best time to visit Ruteng is during June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 23°C with modest rainfall averaging 51mm per month. By contrast, October 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 Ruteng 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.