Belém weather in August
Temperature, sea and sunshine in August: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in August
Fair
Best time to visit: September
What is the weather like in Belém in August?
In August, Belém is hot: daytime highs average 31 °C, and even at night it stays warm at around 25 °C. The sea averages 29.3 °C – almost as warm as a bath. The sun shines for around 9 hours a day. Rain is frequent, with about 10 rainy days and 38 mm in total. On about 26 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, August is a so-so month for a holiday in Belém.
August compared
How the weather changes from July to September. Tap a month to open it.
| JulyJul | AugustAug | SeptemberSep | |
|---|---|---|---|
| Score | 54 | 59 | 61 |
| Day | 30° | 31° | 32° |
| Night | 24° | 25° | 25° |
| Sea | 29° | 29° | 29° |
| Sun | 8 h | 9 h | 8 h |
| Rain days | 15 | 10 | 7 |
More details for August
- Daylight
- 12 h 4 min06:17 – 18:21
- UV index
- 13 · extremeclear sky, noon (estimate)All months
- Muggy days
- 31 daysdew point 18 °C or moreAll months
- Wind
- 14 km/haverage daily peakAll months
- Cloud cover
- 38 %on averageAll months
- Hot days
- 26 days30 °C or moreAll months
- Time zone
- UTC−3America/Belem
How the score comes together
- Temperatureweight 50 %49 %
- Sunshineweight 20 %92 %
- Few rainy daysweight 30 %56 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in August
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
- Insect repellent
- Rain jacket or umbrella
Belém in August: quick answers
Is Belém hot in August?
Yes. In August, Belém is hot: daytime highs average 31 °C and nights stay around 25 °C. On about 26 days the thermometer climbs to 30 °C or more.
Can you swim in Belém in August?
Yes. In August the sea averages 29.3 °C – almost as warm as a bath.
Does it rain much in Belém in August?
Rain is frequent, with about 10 rainy days and 38 mm in total.
Belém month by month
The whole year in BelémAll destinations: BrazilWhere to go in AugustSea temperature in August
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences