Climate Insights for Arauco

The climate in Arauco is warm and mild. The average annual temperature is 20°C and approximately 285mm of precipitation falls per year. January is the wettest month, receiving around 56mm of rainfall. Arauco is in the Southern Hemisphere. The seasons are reversed: summer runs from December to February, while winter falls between June and August. The summer months are: January, December, February. The coldest months are July, June, August, when temperatures can drop to 6°C.

Temperatures in Arauco vary considerably across the year, with a 25°C difference between the coldest and warmest months. The warmest month is January, when average highs reach 31°C and the mean temperature sits around 26°C. July is the coolest month, with minimum temperatures around 6°C and an average of 12°C. On average, daily temperatures fluctuate by about 12°C between overnight lows and afternoon highs. The sharpest temperature change occurs between April and May, with a 4°C shift in average temperatures.

Arauco is a quite dry location, receiving approximately 285mm of precipitation annually, which averages out to around 24mm per month. The wettest month is January, averaging 56mm of rainfall. February and December also tend to see above-average precipitation. The driest month is July, with just 2mm. That's 54mm less than January, 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.

Arauco 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 October, averaging 8km/h, though still comfortable for most outdoor activities. The calmest conditions occur in June, with average winds dropping to 5km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 3km/h gap between the calmest and windiest months.

It is currently spring in Arauco, which began on September 23, 2026. Arauco is in the Southern Hemisphere, where the seasons are reversed: spring starts in September, summer in December, autumn in March, and winter in June. The warmest period peaks in January at around 31°C, while the coldest stretch bottoms out in July near 6°C. Summer is next, beginning on December 21, 2026 (87 days from now).

The best time to visit Arauco is during February, March, April, May, August, September, October, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 21°C with modest rainfall averaging 25mm per month. By contrast, January can be uncomfortably hot with highs reaching 31°C, while July is the coldest period with lows dropping to 6°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Arauco 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.