Climate Insights for Sumé

The climate in Sumé is hot. The average annual temperature is 25°C and approximately 320mm of precipitation falls per year. March is the wettest month, receiving around 76mm of rainfall. Sumé sits near the equator, so seasonal temperature differences are minimal throughout the year.

Sumé sees moderate temperature variation throughout the year, ranging from 18°C to 33°C. The warmest month is November, when average highs reach 33°C and the mean temperature sits around 27°C. August is the coolest month, with minimum temperatures around 18°C and an average of 24°C. On average, daily temperatures fluctuate by about 11°C between overnight lows and afternoon highs.

Sumé is a quite dry location, receiving approximately 320mm of precipitation annually, which averages out to around 27mm per month. The wettest month is March, averaging 76mm of rainfall. April and February also tend to see above-average precipitation. The driest month is October, with just 1mm. That's 74mm less than March, 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.

Sumé is mildly breezy, with an average annual wind speed of 15km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is October, averaging 19km/h, though still comfortable for most outdoor activities. The calmest conditions occur in April, with average winds dropping to 12km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 7km/h gap between the calmest and windiest months.

It is currently winter in Sumé, which began on June 21, 2026. Sumé sits near the equator, so the traditional four-season cycle is less pronounced. Temperatures remain relatively stable year-round. The warmest period peaks in November at around 33°C, while the coldest stretch bottoms out in August near 18°C. Spring is next, beginning on September 23, 2026 (3 days from now).

The best time to visit Sumé is during May, June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 24°C with modest rainfall averaging 18mm per month. By contrast, November can be uncomfortably hot with temperatures reaching 33°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Sumé 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.