Belém, located at the mouth of the Amazon River in northern Brazil, features a tropical rainforest climate with consistently high temperatures, high humidity, and abundant rainfall. The city experiences two main seasons: a much wetter rainy season and a relatively drier season, but even the driest months see frequent showers. Warm sea temperatures and lush vegetation define Belém’s equatorial atmosphere.
The best times to travel section shows how the months compare for a visit, so you can find the time of year that fits what you want to do.
Background colours of the months:
The colour shows the typical temperature: yellow (hot), green (mild) and blue (cold). How strong the colour is shows the travel season: full colour means high season, soft colour means shoulder season and soft-striped means off season.
Weather symbols:
Each month has one symbol showing what the weather is typically like, such as hot and sunny, freezing or a rainy or snowy season. Use them to quickly spot months that match the weather you want, or to avoid the ones that don't.
Crowdedness:
The people icon shows how busy the place usually is. The more people, the more crowded it gets.
Additional notes:
The grey info boxes point out special things worth knowing, like recurring weather issues or seasonal events.
Belém’s tropical rainforest climate (Köppen Af) is shaped by its proximity to the Amazon and the Intertropical Convergence Zone. Temperatures remain steady year-round, with average highs of 31–33°C and nighttime lows around 23–24°C. The city is hot and humid throughout the year, with relative humidity often above 80%. Daily temperature swings are modest, but the heat can feel intense due to the humidity.
The city experiences a pronounced rainy season from January to May, when monthly rainfall can exceed 400–500 mm and rain falls on nearly every day. March is typically the wettest month. During this period, sunshine is limited to 3–6 hours per day, and the air feels especially humid. The drier season, from June to December, brings less rainfall – typically 90–210 mm per month – but showers remain frequent, especially in the afternoons. July to October are the sunniest months, with up to 8 hours of sunshine daily. Despite the rain, Belém enjoys over 2,200 hours of sunshine annually. Winds are generally light, and the city rarely experiences extreme weather events like cyclones. Sea temperatures are warm year-round, averaging 28–29°C, making the coast inviting for swimming and water activities. The surrounding Amazon rainforest contributes to the city’s lush, green landscape and remarkable biodiversity.
| Average climate data for Belém, Brazil | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Average maximum temperature (°C) | 31 | 31 | 30 | 31 | 31 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 |
| Average minimum temperature (°C) | 22 | 22 | 22 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 |
| Average precipitation (mm) | 389 | 409 | 448 | 349 | 308 | 155 | 155 | 128 | 147 | 113 | 117 | 203 | 2,920 |
| Average rainfall days (days) | 24 | 24 | 26 | 24 | 23 | 16 | 15 | 12 | 15 | 12 | 13 | 17 | 221 |
| Average relative humidity (%) | 91 | 91 | 90 | 90 | 89 | 85 | 86 | 83 | 84 | 84 | 84 | 85 | 87 |
| Average water temperature (°C) | 29 | 28 | 28 | 28 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
| Average daily daylight hours (h) | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
| Average daily sunshine hours (h) | 4 | 3 | 3 | 4 | 5 | 7 | 8 | 8 | 7 | 7 | 6 | 5 | 6 |
| Average UV index | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 12 | 12 | 12 | 12 | 12 | 12 |
The best time to visit Belém is from July to October, during the drier and sunniest part of the year. These months offer more reliable weather for sightseeing, festivals, and exploring the Amazon, with fewer interruptions from rain and up to 8 hours of sunshine daily.
The least favourable time to visit is from March to May, when rainfall is at its peak and heavy downpours can disrupt outdoor plans. High humidity and frequent storms make this period less comfortable for travel, though the city remains lush and vibrant.
Belém has a hot, humid, and rainy tropical climate. Temperatures stay between 31–33°C during the day and 23–24°C at night. Rain falls throughout the year, with a wetter season from January to May and a relatively drier season from June to December.
The best time to visit Belém is from July to October, when rainfall is lowest and sunshine is most abundant. These months are ideal for sightseeing, festivals, and enjoying the city’s beaches and Amazon excursions.
Yes, Belém receives abundant rainfall year-round, especially from January to May, when monthly totals can exceed 400 mm. Even in the driest months, showers are frequent, but July to October are relatively drier and sunnier.
Sea temperatures in Belém remain warm throughout the year, averaging 28–29°C. This makes the coast suitable for swimming and water activities in any month.
Yes, Belém’s consistently warm weather and hot sea temperatures make it suitable for beach holidays year-round. The best beach weather is from July to October, when rain is less frequent and sunshine is more reliable.
Pack light, breathable clothing, sun protection, and a rain jacket or umbrella. Waterproof footwear is useful during the rainy season. Due to high humidity, drink plenty of water and avoid heavy fabrics.
Belém rarely experiences extreme weather like cyclones. The main hazards are heavy rainfall and localised flooding during the rainy season. Plan for possible rain delays and check local forecasts, especially from January to May.
The warmest month, with the highest average maximum temperature, is October (32.3 °C). The month with the lowest average maximum temperature is March (30.3 °C). Overall, the average maximum temperature over the whole year is 31.5 °C.
The month with the highest average minimum temperature is May (22.7 °C). The coldest month, with the lowest average minimum temperature, is August (21.6 °C). Overall, the average minimum temperature over the whole year is 22.1 °C.
The month with the highest average water temperature is May (28.6 °C). The month with the lowest average water temperature is December (28.2 °C). Overall, the average water temperature over the whole year is 28.4 °C.
The wettest month, with the highest amount of precipitation, is March (447.7 mm). The driest month, with the least amount of precipitation, is October (112.9 mm). Over the whole year there are 2,920 mm of rainfall on average.
The month with the most days of rain is March (25.9 days). The month with the fewest days of rain is August (12 days). Over the whole year there are 220.6 days of rain on average.
The month with the highest average relative humidity is February (91.2 %). The month with the lowest average relative humidity is August (82.9 %). The overall average relative humidity over the whole year is 86.9 %.
The months with the longest days, so the most daylight, are January, February, March, April, May, August, September, October, November and December (Average daylight: 12 h). The months with the shortest days, so the least daylight, are June and July (Average daylight: 12 h). Over the whole year there are 12 h of daylight per day on average.
The month with the most sunshine per day is August (Average sunshine: 8 h). The month with the least sunshine per day is February (Average sunshine: 3 h). Over the whole year there are 5.6 h of sunlight per day on average.
The months with the highest average UV index are January, February, March, April, May, August, September, October, November and December (UV index: 12). The months with the lowest average UV index are June and July (UV index: 11). Over the whole year the average UV index is 11.8.
