Climate Overview
The climate in Madang is hot. The average annual temperature is 26°C and approximately 4380mm of precipitation falls per year. Madang receives a notable amount of rainfall throughout the year, including during its driest month. Madang sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Madang has relatively stable temperatures year-round, staying within a 7°C range. The warmest month is February, when average highs reach 30°C and the mean temperature sits around 26°C. August is the coolest month, with minimum temperatures around 23°C and an average of 26°C. Daily temperature variation is modest, with an average difference of 6°C between highs and lows.
Precipitation
Madang is a very wet location, receiving approximately 4380mm of precipitation annually, which averages out to around 365mm per month. The wettest month is March, averaging 596mm of rainfall. April and December also tend to see above-average precipitation. The driest month is July, with just 163mm. That's 433mm less than March, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall.
Wind
Madang is relatively calm, with an average annual wind speed of 1km/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 2km/h, though still comfortable for most outdoor activities. The calmest conditions occur in May, with average winds dropping to 1km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 1km/h gap between the calmest and windiest months.
Seasons
93 days until Spring
It is currently winter in Madang, which began on June 21, 2026. Madang sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in February at around 30°C, while the coldest stretch bottoms out in August near 23°C. Spring is next, beginning on September 23, 2026 — 93 days from now.
Spring
Temperatures range from 23 to 30°C. Rainfall is heavy, totalling around 991mm across the season with a monthly average of 330mm. Winds are generally light, averaging 1km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 24 to 30°C. Rainfall is heavy, totalling around 1383mm across the season with a monthly average of 461mm. Winds are generally light, averaging 1km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 24 to 30°C. Rainfall is heavy, totalling around 1440mm across the season with a monthly average of 480mm. Winds are generally light, averaging 1km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 23 to 29°C. Rainfall is heavy, totalling around 565mm across the season with a monthly average of 188mm. Winds are generally light, averaging 1km/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 Madang 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.
