Climate Insights for Belém

The climate in Belém is warm and mild. The average annual temperature is 24°C and approximately 601mm of precipitation falls per year. March is the wettest month, receiving around 112mm of rainfall. Belém sits near the equator, so seasonal temperature differences are minimal throughout the year.

Belém sees moderate temperature variation throughout the year, ranging from 19°C to 30°C. The warmest month is November, when average highs reach 30°C and the mean temperature sits around 25°C. August is the coolest month, with minimum temperatures around 19°C and an average of 23°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows.

Belém is a relatively dry area, receiving approximately 601mm of precipitation annually, which averages out to around 50mm per month. The wettest month is March, averaging 112mm of rainfall. April and February also tend to see above-average precipitation. The driest month is October, with just 14mm. That's 98mm 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.

Belém is mildly breezy, with an average annual wind speed of 18km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is September, averaging 20km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in March, with average winds dropping to 15km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 5km/h 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 20km/h in winter, 19km/h in spring, 17km/h in summer, 16km/h in autumn.

It is currently autumn in Belém, which began on March 20, 2026. Belém 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 30°C, while the coldest stretch bottoms out in August near 19°C. Winter is next, beginning on June 21, 2026 — 89 days from now.

The best time to visit Belém is during April, May, June, July, August, September and October, when the weather is most comfortable for travellers. During these months, average temperatures hover around 24°C with modest rainfall averaging 44mm per month. By contrast, November 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 Belém 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.