Climate Insights for Santana de Parnaíba

The climate in Santana de Parnaíba is hot. The average annual temperature is 28°C and approximately 393mm of precipitation falls per year. Santana de Parnaíba receives a notable amount of rainfall throughout the year, including during its driest month. Santana de Parnaíba 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, February, April. The coldest months are September, October, April, when temperatures can drop to 20°C.

Santana de Parnaíba has relatively stable temperatures year-round, staying within a 10°C range. The warmest month is January, when average highs reach 30°C and the mean temperature sits around 29°C. September is the coolest month, with minimum temperatures around 20°C and an average of 23°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows. The sharpest temperature change occurs between August and September, with a 5°C shift in average temperatures.

Santana de Parnaíba is a quite dry location, receiving approximately 393mm of precipitation annually, which averages out to around 33mm per month. The wettest month is January, averaging 33mm of rainfall. February and March also tend to see above-average precipitation. The driest month is January, with just 33mm. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around.

Santana de Parnaíba 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 January, averaging 8km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 1km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 7km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans.

It is currently winter in Santana de Parnaíba, which began on June 21, 2026. Santana de Parnaíba 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 30°C, while the coldest stretch bottoms out in September near 20°C. Spring is next, beginning on September 23, 2026 — 16 days from now.

The best time to visit Santana de Parnaíba is during September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 23°C with modest rainfall averaging 33mm per month. By contrast, January can be uncomfortably hot with temperatures reaching 30°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 Santana de Parnaíba 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.