Weather in Manaus in August 2025
- August is usually the driest month of the year in Manaus
Average weather
Average temperature in Manaus in August
The temperature in August is +34°C on average, with a range between a maximum of +36°C during the day and a minimum of +24°C at night.
The average maximum temperature goes up 8% by the end of the month, compared with the beginning of the month, from +34°C to +35°C.
Is Manaus warm or cold in August?
Manaus is typically hot in August.
Maximum temperatures go up compared to the previous month from +31°C to +32°C. The minimum temperature also goes up from +24°C to +24°C.
Make sure that you pack your summer linen and swimming costumes; it’s probably going to be hot.
August is one of the warmest months in Manaus, here is the comparison with other months:
Climate in Manaus in August
| July | August | September | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +31°C | +32°C | +32°C | ||||
| Min. temperature | ||||||
| +19°C | +21°C | +21°C | ||||
| Max. temperature | ||||||
| +35°C | +36°C | +38°C | ||||
| Rainfall | ||||||
| 109 mm | 100 mm | 124 mm | ||||
| Wind | ||||||
| 1 m/s | 1 m/s | 1 m/s | ||||
| Humidity | ||||||
| 84% | 81% | 81% | ||||
| Air pressure | ||||||
| 1012 HPa | 1011 HPa | 1010 HPa | ||||
| Sunny days | ||||||
| 2 | 4 | 3 | ||||
| Cloudy days | ||||||
| 1 | 1 | 1 | ||||
| Rainy days | ||||||
| 21 | 20 | 19 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
August weather is still as ok as in July. It’s getting warmer as August arrives. The average maximum temperature goes up from +31°C to +32°C during the day. As August arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 109 mm to 100 mm. It feels drier, as humidity decreases from 84% to 81%. The average wind speed doesn’t change much during August, staying around 1 m/s. The good news is there are likely to be more sunny days in August, from 2 to 4.
September brings much the same weather, it remains ok.
Wind
The average wind speed is 2 m/s getting up to 3 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Manaus is gradually increasing during August, going from 1 m/s to 2 m/s over the course of the month.
Rain
How was the weather last August in Manaus?
Climate Change over Years
The climate in Manaus in August has not changed much over the last 43 years.
The average temperature was the lowest in 1989 (+29°C) and the highest in 2020 (+32°C). The driest year was 1980 with only 2148 mm of rainfall, and the wettest year was 2008 with 3331 mm.
FAQ
Is August a good time to visit Manaus?
Can you sunbathe in Manaus in August?
Is Manaus rainy in August?
Is it sunny in Manaus in August?
Other cities in Brazil
Monthly weather in Manaus
Source of the data
For this page, we’ve looked at the typical weather in Manaus, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.