Climate Overview
The climate in Marechal Deodoro is hot. The average annual temperature is 25°C and approximately 375mm of precipitation falls per year. December is the wettest month, receiving around 33mm of rainfall. Marechal Deodoro sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Marechal Deodoro has relatively stable temperatures year-round, staying within a 3°C range. The warmest month is July, when average highs reach 27°C and the mean temperature sits around 26°C. October is the coolest month, with minimum temperatures around 24°C and an average of 25°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows.
Precipitation
Marechal Deodoro is a quite dry location, receiving approximately 375mm of precipitation annually, which averages out to around 31mm 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 May, with just 14mm. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around.
Wind
Marechal Deodoro is relatively calm, with an average annual wind speed of 9km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 12km/h, though still comfortable for most outdoor activities. The calmest conditions occur in June, with average winds dropping to 5km/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.
Seasons
16 days until Spring
It is currently winter in Marechal Deodoro, which began on June 21, 2026. Marechal Deodoro sits near the equator, so the traditional four-season cycle is less pronounced. Temperatures remain relatively stable year-round. The warmest period peaks in July at around 27°C, while the coldest stretch bottoms out in October near 24°C. Spring is next, beginning on September 23, 2026 (16 days from now).
Spring
Temperatures range from 24 to 26°C. Rainfall is relatively light, with around 98mm over the season and a monthly average of 33mm. Winds are generally light, averaging 10km/h. Light layers work well as temperatures warm through the season. It is a great time to be outdoors.
Summer
Temperatures range from 24 to 26°C. Rainfall is relatively light, with around 98mm over the season and a monthly average of 33mm. Winds are generally light, averaging 10km/h. Light, breathable clothing is ideal. Perfect conditions for outdoor activities.
Autumn
Temperatures range from 24 to 26°C. Rainfall is relatively light, with around 80mm over the season and a monthly average of 27mm. Winds are generally light, averaging 8km/h. Layered clothing works best as temperatures gradually cool. Enjoy the crisp air and changing scenery.
Winter
Temperatures range from 24 to 27°C. Rainfall is relatively light, with around 98mm over the season and a monthly average of 33mm. Winds are generally light, averaging 8km/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 Marechal Deodoro is during January, May, June and October, when the weather is most comfortable for travellers. During these months, average temperatures hover around 25°C with modest rainfall averaging 28mm per month. By contrast, July can be uncomfortably hot with temperatures reaching 27°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.
Monthly Climate Data
The table below shows monthly climate averages for Marechal Deodoro 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.