Climate Overview
The climate in Sungai Koyan is hot. The average annual temperature is 26°C and approximately 2057mm of precipitation falls per year. Sungai Koyan receives a notable amount of rainfall throughout the year, including during its driest month. Sungai Koyan sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Sungai Koyan sees moderate temperature variation throughout the year, ranging from 22°C to 33°C. The warmest month is March, when average highs reach 33°C and the mean temperature sits around 27°C. February is the coolest month, with minimum temperatures around 22°C and an average of 25°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs.
Precipitation
Sungai Koyan is a very wet location, receiving approximately 2057mm of precipitation annually, which averages out to around 171mm per month. The wettest month is November, averaging 296mm of rainfall. October and May also tend to see above-average precipitation. The driest month is February, with just 71mm. That's 225mm less than November, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.
Wind
Sungai Koyan 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 1km/h, though still comfortable for most outdoor activities. The calmest conditions occur in October, 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 0km/h gap between the calmest and windiest months.
Seasons
85 days until Autumn
It is currently summer in Sungai Koyan, which began on June 21, 2026. Sungai Koyan sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in March at around 33°C, while the coldest stretch bottoms out in February near 22°C. Autumn is next, beginning on September 23, 2026 — 85 days from now.
Spring
Temperatures range from 23 to 33°C. Rainfall is heavy, totalling around 466mm across the season with a monthly average of 155mm. Winds are generally light, averaging 1km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 22 to 32°C. Rainfall is heavy, totalling around 461mm across the season with a monthly average of 154mm. Winds are generally light, averaging 1km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 22 to 31°C. Rainfall is heavy, totalling around 723mm across the season with a monthly average of 241mm. Winds are generally light, averaging 1km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 22 to 31°C. Rainfall is heavy, totalling around 407mm across the season with a monthly average of 136mm. 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 Sungai Koyan 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.
