Climate Insights for Lawang

The climate in Lawang is warm and mild. The average annual temperature is 25°C and approximately 2728mm of precipitation falls per year. February is the wettest month, receiving around 555mm of rainfall. Lawang sits near the equator, so seasonal temperature differences are minimal throughout the year.

Lawang sees moderate temperature variation throughout the year, ranging from 19°C to 31°C. The warmest month is October, when average highs reach 31°C and the mean temperature sits around 26°C. August is the coolest month, with minimum temperatures around 19°C and an average of 24°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows.

Lawang is a very wet location, receiving approximately 2728mm of precipitation annually, which averages out to around 227mm per month. The wettest month is February, averaging 555mm of rainfall. January and March also tend to see above-average precipitation. The driest month is August, with just 11mm. That's 544mm 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.

Lawang 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 September, averaging 10km/h, though still comfortable for most outdoor activities. The calmest conditions occur in January, with average winds dropping to 6km/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.

It is currently autumn in Lawang, which began on March 20, 2026. Lawang 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 31°C, while the coldest stretch bottoms out in August near 19°C. Winter is next, beginning on June 21, 2026 — 89 days from now.

The best time to visit Lawang is during May, June, July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 24°C with modest rainfall averaging 35mm per month. By contrast, October can be uncomfortably hot with temperatures reaching 31°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 Lawang 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.