Climate Insights for Riacho de Santana

The climate in Riacho de Santana is hot. The average annual temperature is 26°C and approximately 606mm of precipitation falls per year. November is the wettest month, receiving around 126mm of rainfall. Riacho de Santana 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: October, September, November. The coldest months are July, June, August, when temperatures can drop to 17°C.

Riacho de Santana sees moderate temperature variation throughout the year, ranging from 17°C to 35°C. October is the hottest month, with daytime highs reaching 35°C and an average of 29°C. July is the coolest month, with minimum temperatures around 17°C and an average of 24°C. On average, daily temperatures fluctuate by about 12°C between overnight lows and afternoon highs. The sharpest temperature change occurs between August and September, with a 2°C shift in average temperatures.

Riacho de Santana is a relatively dry area, receiving approximately 606mm of precipitation annually, which averages out to around 51mm per month. The wettest month is November, averaging 126mm of rainfall. January and December also tend to see above-average precipitation. The driest month is July, with just 0mm. That's 126mm less than November, 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.

Riacho de Santana 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 August, averaging 16km/h, though still comfortable for most outdoor activities. The calmest conditions occur in February, with average winds dropping to 10km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 6km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 16km/h in winter, 14km/h in spring, 11km/h in summer, 12km/h in autumn.

It is currently autumn in Riacho de Santana, which began on March 20, 2026. Riacho de Santana 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 October at around 35°C, while the coldest stretch bottoms out in July near 17°C. Winter is next, beginning on June 21, 2026 — 87 days from now.

The best time to visit Riacho de Santana is during June and July, when the weather is most comfortable for travellers. During these months, average temperatures hover around 24°C with modest rainfall averaging 1mm per month. By contrast, October can be uncomfortably hot with temperatures reaching 35°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Riacho de Santana 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.