Climate Overview
The climate in Cabo de Santo Agostinho is hot. The average annual temperature is 27°C and approximately 344mm of precipitation falls per year. December is the wettest month, receiving around 33mm of rainfall. Cabo de Santo Agostinho sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Cabo de Santo Agostinho has relatively stable temperatures year-round, staying within a 3°C range. The warmest month is June, when average highs reach 29°C and the mean temperature sits around 28°C. December is the coolest month, with minimum temperatures around 26°C and an average of 26°C. Daily temperature variation is modest, with an average difference of 1°C between highs and lows.
Precipitation
Cabo de Santo Agostinho is a quite dry location, receiving approximately 344mm of precipitation annually, which averages out to around 29mm per month. The wettest month is February, averaging 33mm of rainfall. April and May also tend to see above-average precipitation. The driest month is March, with just 6mm. That's 27mm less than February, 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
Cabo de Santo Agostinho is relatively calm, with an average annual wind speed of 5km/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 8km/h, though still comfortable for most outdoor activities. The calmest conditions occur in April, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 6km/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 3km/h in winter, 7km/h in spring, 6km/h in summer, 3km/h in autumn.
Seasons
16 days until Spring
It is currently winter in Cabo de Santo Agostinho, which began on June 21, 2026. Cabo de Santo Agostinho sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in June at around 29°C, while the coldest stretch bottoms out in December near 26°C. Spring is next, beginning on September 23, 2026 — 16 days from now.
Spring
Temperatures range from 27 to 28°C. Rainfall is relatively light, with around 82mm over the season and a monthly average of 27mm. Winds are generally light, averaging 7km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.
Summer
Temperatures range from 26 to 28°C. Rainfall is relatively light, with around 94mm over the season and a monthly average of 31mm. Winds are generally light, averaging 6km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 26 to 28°C. Rainfall is relatively light, with around 71mm over the season and a monthly average of 24mm. Winds are generally light, averaging 3km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.
Winter
Temperatures range from 26 to 29°C. Rainfall is relatively light, with around 97mm over the season and a monthly average of 32mm. Winds are generally light, averaging 3km/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 Cabo de Santo Agostinho 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.
