Climate Overview
The climate in Achmad Yani International Airport is hot. The average annual temperature is 26°C and approximately 2434mm of precipitation falls per year. February is the wettest month, receiving around 410mm of rainfall. Achmad Yani International Airport sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Achmad Yani International Airport has relatively stable temperatures year-round, staying within a 5°C range. The warmest month is September, when average highs reach 29°C and the mean temperature sits around 27°C. July is the coolest month, with minimum temperatures around 24°C and an average of 26°C. Daily temperature variation is modest, with an average difference of 4°C between highs and lows.
Precipitation
Achmad Yani International Airport is a very wet location, receiving approximately 2434mm of precipitation annually, which averages out to around 203mm per month. The wettest month is February, averaging 410mm of rainfall. December and January also tend to see above-average precipitation. The driest month is August, with just 18mm. That's 391mm 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.
Wind
Achmad Yani International Airport is mildly breezy, with an average annual wind speed of 13km/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 16km/h, though still comfortable for most outdoor activities. The calmest conditions occur in May, with average winds dropping to 10km/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 pick up during the summer months. The seasonal averages are 12km/h in winter, 12km/h in spring, 16km/h in summer, 11km/h in autumn.
Seasons
90 days until Winter
It is currently autumn in Achmad Yani International Airport, which began on March 20, 2026. Achmad Yani International Airport 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 29°C, while the coldest stretch bottoms out in July near 24°C. Winter is next, beginning on June 21, 2026 — 90 days from now.
Spring
Temperatures range from 25 to 29°C. Rainfall is heavy, totalling around 482mm across the season with a monthly average of 161mm. Winds are generally light, averaging 12km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 24 to 28°C. Rainfall is heavy, totalling around 1226mm across the season with a monthly average of 409mm. Winds are moderate at around 16km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 25 to 29°C. Rainfall is heavy, totalling around 627mm across the season with a monthly average of 209mm. Winds are generally light, averaging 11km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 24 to 29°C. Rainfall is relatively light, with around 99mm over the season and a monthly average of 33mm. Winds are generally light, averaging 12km/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 Achmad Yani International Airport 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.
