Belém weather in August
August in Belém: sweltering, a little rain, with clean air — fine if you can take 36°C afternoons.
Updated September 2026 · climate normals from ERA5 reanalysis
#3 of 12 months in Belém · #831 of 1413 destinations to visit in August · comfort 74/100 (tier B)
- Days
- 32°C
- Nights
- 24°C
- Wet days
- 8
- Sun
- 11.1 h
- Humidity
- 76%
- Daylight
- 12 h

Traveller notes on Belém in August
Other months in Belém
Forum posters describe January as the middle of the Amazon region's hot, wet season, with heavy rain typical, usually falling in the afternoon and bringing a bit of relief from the heat - posters are consistent that a full day of nonstop rain is genuinely unusual, with the sun more likely than not to appear at some point. Posters describe January conditions in Belém specifically as a tough climate overall, recommending the air-conditioned harbor development area, complete with ice cream, as a real relief option when the heat and humidity become too much. Posters generally describe Brazilian January more broadly as peak summer and rainy season, hot enough that the rain itself often comes as a welcome cooldown rather than a disruption. Posters generally rate January as hot, wet and genuinely demanding, but manageable with realistic expectations for a Belém visit.
Forum posters describe Belem as a worthwhile stop for its distinctive Amazonian cuisine, riverside markets, historic churches and lively waterfront docks, often paired with a 3-4 day side trip further into the surrounding region. As an equatorial Amazon city rather than a beach destination in the classic Brazilian sense, posters don't frame July here around 'beach weather' comparisons the way they do for Rio or the Northeast coast - instead the draw is culture, food and river life regardless of the specific month, with genuinely hot, humid conditions and a real chance of rain being a constant backdrop rather than a season-specific concern.
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Belém climate normals — August
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Belém in August
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Busyone of its best months for weather(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Belém's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Best weatherBelém's weather peaks August–October, best around September.
Best weatherFair weatherToughest weather
What's on in Belém in August
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Amazonian summer
15 Jun – 30 Nov · usuallyDry seasonLocals call the drier half of the year the Amazon summer. The afternoon downpour stops being a daily certainty, the river beaches on Mosqueiro and Marajó open, and the weekend boats out of the city fill.
- Season
Açaí harvest
1 Aug – 15 Dec · usuallyThe main açaí crop reaches the Ver-o-Peso quays from about August, when the thick purple pulp is at its best and cheapest. Out of season the price climbs sharply and the quality drops. Source ↗
Where is Belém?
Belém in August — FAQ
- Is August a good time to visit Belém?
- August in Belém: sweltering, a little rain, with clean air — fine if you can take 36°C afternoons. It ranks #3 of 12 months for Belém on SeasonMap's comfort score (74/100).
- What is the weather like in Belém in August?
- In August, Belém averages a daily high of 31.6°C and a low of 24.2°C, with about 32.2 mm of rain over roughly 8.3 rainy days.
- What is the air quality in Belém in August?
- Belém has a mean US Air Quality Index of about 38 in August.