Climate Insights for Castro Alves

The climate in Castro Alves is hot. The average annual temperature is 25°C and approximately 624mm of precipitation falls per year. Castro Alves receives a notable amount of rainfall throughout the year, including during its driest month. Castro Alves 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: February, December, March. The coldest months are August, July, September, when temperatures can drop to 19°C.

Castro Alves sees moderate temperature variation throughout the year, ranging from 19°C to 32°C. The warmest month is February, when average highs reach 32°C and the mean temperature sits around 27°C. August is the coolest month, with minimum temperatures around 19°C and an average of 23°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs.

Castro Alves is a relatively dry area, receiving approximately 624mm of precipitation annually, which averages out to around 52mm per month. The wettest month is January, averaging 77mm of rainfall. November and April also tend to see above-average precipitation. The driest month is September, with just 38mm. That's 39mm less than January, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around.

Castro Alves is relatively calm, with an average annual wind speed of 4km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is July, averaging 4km/h, though still comfortable for most outdoor activities. The calmest conditions occur in January, with average winds dropping to 3km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1km/h between the calmest and windiest months.

It is currently autumn in Castro Alves, which began on March 20, 2026. Castro Alves 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 February at around 32°C, while the coldest stretch bottoms out in August near 19°C. Winter is next, beginning on June 21, 2026 — 12 days from now.

The best time to visit Castro Alves is during May, June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 23°C with modest rainfall averaging 42mm per month. By contrast, February can be uncomfortably hot with temperatures reaching 32°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Castro Alves 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.