Climate Overview
The climate in Mranggen is hot. The average annual temperature is 28°C and approximately 2416mm of precipitation falls per year. January is the wettest month, receiving around 384mm of rainfall. Mranggen sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Mranggen sees moderate temperature variation throughout the year, ranging from 23°C to 34°C. The warmest month is September, when average highs reach 34°C and the mean temperature sits around 28°C. July is the coolest month, with minimum temperatures around 23°C and an average of 28°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows.
Precipitation
Mranggen is a very wet location, receiving approximately 2416mm of precipitation annually, which averages out to around 201mm per month. The wettest month is January, averaging 384mm of rainfall. December and February also tend to see above-average precipitation. The driest month is August, with just 16mm. That's 368mm less than January, 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.
Wind
Mranggen 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 February, averaging 13km/h, though still comfortable for most outdoor activities. The calmest conditions occur in April, 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 5km/h gap between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 10km/h in winter, 10km/h in spring, 12km/h in summer, 9km/h in autumn.
Seasons
89 days until Winter
It is currently autumn in Mranggen, which began on March 20, 2026. Mranggen 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 34°C, while the coldest stretch bottoms out in July near 23°C. Winter is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 24 to 34°C. Rainfall is heavy, totalling around 501mm across the season with a monthly average of 167mm. Winds are generally light, averaging 10km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 24 to 31°C. Rainfall is heavy, totalling around 1144mm across the season with a monthly average of 381mm. Winds are generally light, averaging 12km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 24 to 32°C. Rainfall is heavy, totalling around 655mm across the season with a monthly average of 218mm. Winds are generally light, averaging 9km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 23 to 33°C. Rainfall is relatively light, with around 117mm over the season and a monthly average of 39mm. Winds are generally light, averaging 10km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Monthly Climate Data
The table below shows monthly climate averages for Mranggen 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.
