Climate Overview
The climate in Biliau is hot. The average annual temperature is 27°C and approximately 5279mm 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 January, 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 5279mm of precipitation annually, which averages out to around 440mm per month. The wettest month is December, averaging 771mm of rainfall. March and January also tend to see above-average precipitation. The driest month is August, with just 159mm. That's 613mm 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 mildly breezy, with an average annual wind speed of 14km/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 20km/h, though still comfortable for most outdoor activities. The calmest conditions occur in June, with average winds dropping to 12km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 8km/h gap between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 13km/h in winter, 13km/h in spring, 17km/h in summer, 14km/h in autumn.
Seasons
89 days until Winter
It is currently autumn in Biliau, which began on March 20, 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 January at around 28°C, while the coldest stretch bottoms out in September near 26°C. Winter is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 26 to 28°C. Rainfall is heavy, totalling around 1027mm across the season with a monthly average of 342mm. Winds are generally light, averaging 13km/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 2011mm across the season with a monthly average of 670mm. Winds are moderate at around 17km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 26 to 28°C. Rainfall is heavy, totalling around 1707mm across the season with a monthly average of 569mm. Winds are generally light, averaging 14km/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 534mm across the season with a monthly average of 178mm. Winds are generally light, averaging 13km/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.
