Climate Overview
The climate in Biliau is hot. The average annual temperature is 27°C and approximately 5266mm of precipitation falls per year. Biliau receives a notable amount of rainfall throughout the year, including during its driest month. Biliau sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Biliau has relatively stable temperatures year-round, staying within a 2°C range. The warmest month is December, when average highs reach 28°C and the mean temperature sits around 27°C. September is the coolest month, with minimum temperatures around 26°C and an average of 27°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows.
Precipitation
Biliau is a very wet location, receiving approximately 5266mm of precipitation annually, which averages out to around 439mm per month. The wettest month is December, averaging 720mm of rainfall. March and April also tend to see above-average precipitation. The driest month is July, with just 203mm. That's 517mm less than December, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall.
Wind
Biliau is relatively calm, with an average annual wind speed of 3km/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 4km/h, though still comfortable for most outdoor activities. The calmest conditions occur in June, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 2km/h gap between the calmest and windiest months.
Seasons
92 days until Spring
It is currently winter in Biliau, which began on June 21, 2026. Biliau sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in December at around 28°C, while the coldest stretch bottoms out in September near 26°C. Spring is next, beginning on September 23, 2026 — 92 days from now.
Spring
Temperatures range from 26 to 28°C. Rainfall is heavy, totalling around 1099mm across the season with a monthly average of 366mm. Winds are generally light, averaging 2km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 26 to 28°C. Rainfall is heavy, totalling around 1726mm across the season with a monthly average of 575mm. Winds are generally light, averaging 3km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 26 to 28°C. Rainfall is heavy, totalling around 1756mm across the season with a monthly average of 585mm. Winds are generally light, averaging 3km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 26 to 28°C. Rainfall is heavy, totalling around 685mm across the season with a monthly average of 228mm. Winds are generally light, averaging 2km/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 Biliau 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.
