Climate Overview
The climate in Casa Branca is warm and mild. The average annual temperature is 22°C and approximately 1051mm of precipitation falls per year. January is the wettest month, receiving around 201mm of rainfall. Casa Branca 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: September, October, January. The coldest months are July, June, August, when temperatures can drop to 13°C.
Temperature
Casa Branca sees moderate temperature variation throughout the year, ranging from 13°C to 31°C. The warmest month is September, when average highs reach 31°C and the mean temperature sits around 24°C. July is the coolest month, with minimum temperatures around 13°C and an average of 19°C. On average, daily temperatures fluctuate by about 11°C between overnight lows and afternoon highs. The sharpest temperature change occurs between August and September, with a 3°C shift in average temperatures.
Precipitation
Casa Branca is a moderately rainy area, receiving approximately 1051mm of precipitation annually, which averages out to around 88mm per month. The wettest month is January, averaging 201mm of rainfall. December and February also tend to see above-average precipitation. The driest month is July, with just 11mm. That's 190mm 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.
Wind
Casa Branca is mildly breezy, with an average annual wind speed of 13km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is September, averaging 14km/h, though still comfortable for most outdoor activities. The calmest conditions occur in March, with average winds dropping to 11km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 3km/h between the calmest and windiest months.
Seasons
89 days until Winter
It is currently autumn in Casa Branca, which began on March 20, 2026. Casa Branca 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 September at around 31°C, while the coldest stretch bottoms out in July near 13°C. Winter is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 18 to 31°C. Precipitation is moderate at around 282mm for the season, averaging 94mm per month. Winds are generally light, averaging 14km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 20 to 30°C. Rainfall is heavy, totalling around 519mm across the season with a monthly average of 173mm. Winds are generally light, averaging 12km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 15 to 30°C. Precipitation is moderate at around 196mm for the season, averaging 65mm per month. Winds are generally light, averaging 12km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.
Winter
Temperatures range from 13 to 28°C. Rainfall is relatively light, with around 55mm over the season and a monthly average of 18mm. Winds are generally light, averaging 12km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Best Time to Visit
The best time to visit Casa Branca is during April, May, June, July, August, September and October, when the weather is most comfortable for travellers. During these months, average temperatures hover around 21°C with modest rainfall averaging 40mm per month. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.
Monthly Climate Data
The table below shows monthly climate averages for Casa Branca 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.
