Climate Insights for Lumajang

The climate in Lumajang is hot. The average annual temperature is 25°C and approximately 2214mm of precipitation falls per year. Lumajang receives a notable amount of rainfall throughout the year, including during its driest month. Lumajang sits near the equator, so seasonal temperature differences are minimal throughout the year.

Lumajang has relatively stable temperatures year-round, staying within a 9°C range. The warmest month is April, when average highs reach 30°C and the mean temperature sits around 26°C. August is the coolest month, with minimum temperatures around 21°C and an average of 24°C. Daily temperature variation is modest, with an average difference of 6°C between highs and lows.

Lumajang is a very wet location, receiving approximately 2214mm of precipitation annually, which averages out to around 184mm per month. The wettest month is November, averaging 341mm of rainfall. January and February also tend to see above-average precipitation. The driest month is August, with just 35mm. That's 306mm less than November, 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.

Lumajang is relatively calm, with an average annual wind speed of 10km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is August, averaging 14km/h, though still comfortable for most outdoor activities. The calmest conditions occur in March, with average winds dropping to 8km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 6km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 13km/h in winter, 11km/h in spring, 9km/h in summer, 9km/h in autumn.

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

The best time to visit Lumajang is during June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 24°C with modest rainfall averaging 59mm per month. By contrast, April 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 Lumajang 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.