Climate Insights for Açu

The climate in Açu is cold. The average annual temperature is -30°C and approximately 17mm of precipitation falls per year. May is the wettest month, receiving around 5mm of rainfall. Açu sits near the equator, so seasonal temperature differences are minimal throughout the year. Light snow can occur between April and August.

Temperatures in Açu vary considerably across the year, with a 27°C difference between the coldest and warmest months. July is the warmest month, though highs remain moderate at -20°C with a mean of -23°C. January brings the harshest conditions, with lows dropping to -47°C and an average temperature of -45°C. Daily temperature variation is modest, with an average difference of 5°C between highs and lows. The sharpest temperature change occurs between April and May, with a 11°C shift in average temperatures.

Açu is a quite dry location, receiving approximately 17mm of precipitation annually, which averages out to around 1mm per month. The wettest month is May, averaging 5mm of rainfall. June and July also tend to see above-average precipitation. The driest month is January, with just 0mm. 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. Light snowfall can occur between April and August, totalling around 17cm annually. May is the snowiest month with approximately 5cm.

Açu 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 December, averaging 10km/h, though still comfortable for most outdoor activities. The calmest conditions occur in May, with average winds dropping to 1km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 9km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans. Wind tends to pick up during the summer months. The seasonal averages are 5km/h in winter, 8km/h in spring, 8km/h in summer, 3km/h in autumn.

It is currently winter in Açu, which began on June 21, 2026. Açu sits near the equator, so the traditional four-season cycle is less pronounced. Temperatures remain relatively stable year-round. The warmest period peaks in July at around -20°C, while the coldest stretch bottoms out in January near -47°C. Spring is next, beginning on September 23, 2026 (16 days from now).

The table below shows monthly climate averages for Açu 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. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. 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.