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Manaus Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Manaus.
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Climate overview of Manaus
Manaus is a large city in northern Brazil and the capital of the state of Amazonas. It is located near the confluence of the Rio Negro and the Rio Solimões (also called the Encontro das Águas), which merge here to form the Amazon River. Because the two rivers have different temperatures and flow speeds, they do not mix immediately and continue to flow side by side for almost six kilometers (3.7 miles).
Manaus has a tropical rainforest climate without a distinct dry season. Rainfall is fairly high year-round, peaking in the summer months (which correspond to winter in Europe). The climate is largely shaped by the surrounding rainforest; high humidity and warm temperatures can make it feel quite humid during the summer. The rainforest also helps moderate the climate, preventing extreme temperature variations.
Manaus Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Manaus - and find the best time to visit.
Monthly Temperature in Manaus
The climate in Manaus remains fairly constant, offering very warm temperatures throughout the year. Average maximum daytime temperatures range from a very warm 34°C (93°F) in September, the warmest time of the year, to a very warm 31°C (88°F) during cooler months like February.
At night, you can expect temperatures ranging from 25°C (77°F) in September to around 24°C (75°F) during February.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Manaus
Manaus is known for its substantial rainfall, with annual precipitation reaching 3018 mm (119 in). Significant seasonal changes in precipitation occur throughout the year. In the wettest month, March it receives heavy rainfall, averaging 396 mm (16 in) of precipitation, recorded across 30 rainy days. In contrast, the driest month August brings less rainfall, with 110 mm (4.3 in) over 11 rainy days. For more details, please visit our Manaus Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Manaus
Seasonal changes in sunshine hours are quite dramatic in Manaus. While August receives considerable daily sunshine with up to 7.2 hours, February marks the darkest time of the year, where sunshine is scarce with only 3.1 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Manaus by Month
The city experiences its highest humidity in March, reaching 88%. In August, the humidity drops to its lowest level at 77%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Wind Speed in Manaus
The mean wind speed varies between 1 m/s (2 knots) and 1 m/s (2 knots) throughout the year. It is lowest in January, February, March, April, May, June, July, August, September, October, November and December and highest during January, February, March, April, May, June, July, August, September, October, November and December. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Manaus
For the most comfortable conditions available during the year, consider visiting Manaus in July. Conditions are usually least comfortable in January, February, March, April, May, June, August, September, October, November and December.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
very wet
Feb
very wet
Mar
very wet
Apr
very wet
May
very wet
Jun
wet
Jul
mixed
Aug
wet
Sep
very hot
Oct
very hot
Nov
very wet
Dec
very wet
- Best overall: July
- Warmest weather: July, August, September, October and November
- Most sunshine: July and August
- Fewest rainy days: August and September
- Seasonal pattern: A distinct rainy season from November to June
Frequently asked questions about the climate in Manaus
What is the best time to visit Manaus?
July typically offers the most optimal weather in Manaus. In contrast, January, February, March, April, May, June, August, September, October, November and December tend to have less optimal conditions. Manaus has a distinct rainy season from November to June.
What temperatures can I expect in Manaus?
Daytime highs range from 31°C (88°F) in February to 34°C (93°F) in September. Nighttime lows range from 24°C (75°F) to 25°C (77°F). Temperatures stay relatively stable year-round.
How much rain does Manaus get?
Annual rainfall is around 3018 mm (119 in). March is the wettest month with 396 mm (16 in), while August is the driest with 110 mm (4.3 in).
How sunny is Manaus?
Manaus receives around 1,774 hours of sunshine per year. August is the sunniest month with 217 hours, while February is the cloudiest with just 92 hours.
Manaus 3-Day Forecast
Manaus on the map
Manaus is highlighted - select any city to see its climate.
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