Climate Overview
The climate in Côn Sơn is hot. The average annual temperature is 27°C and approximately 2141mm of precipitation falls per year. October is the wettest month, receiving around 391mm of rainfall. Côn Sơn sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Côn Sơn has relatively stable temperatures year-round, staying within a 4°C range. The warmest month is May, when average highs reach 29°C and the mean temperature sits around 29°C. February is the coolest month, with minimum temperatures around 25°C and an average of 25°C. Daily temperature variation is modest, with an average difference of 1°C between highs and lows.
Precipitation
Côn Sơn is a very wet location, receiving approximately 2141mm of precipitation annually, which averages out to around 178mm per month. The wettest month is October, averaging 391mm of rainfall. September and August also tend to see above-average precipitation. The driest month is February, with just 13mm. That's 377mm less than October, 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
Côn Sơn is relatively calm, with an average annual wind speed of 6km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is January, averaging 8km/h, though still comfortable for most outdoor activities. The calmest conditions occur in May, with average winds dropping to 4km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 4km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans.
Seasons
92 days until Autumn
It is currently summer in Côn Sơn, which began on June 21, 2026. Côn Sơn sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in May at around 29°C, while the coldest stretch bottoms out in February near 25°C. Autumn is next, beginning on September 23, 2026 — 92 days from now.
Spring
Temperatures range from 26 to 29°C. Precipitation is moderate at around 231mm for the season, averaging 77mm per month. Winds are generally light, averaging 5km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 27 to 29°C. Rainfall is heavy, totalling around 709mm across the season with a monthly average of 236mm. Winds are generally light, averaging 6km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 26 to 28°C. Rainfall is heavy, totalling around 947mm across the season with a monthly average of 316mm. Winds are generally light, averaging 6km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 25 to 26°C. Precipitation is moderate at around 254mm for the season, averaging 85mm per month. Winds are generally light, averaging 8km/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 Côn Sơn 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.
