Altamira Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Altamira.
Climate overview of Altamira
The climate in Altamira, Pará, Brazil, is remarkably consistent, with temperatures year-round averaging 33°C (91°F). The warmest month is September at 35°C (95°F), and the coolest is February at 31°C (88°F).
The city has a wet climate, receiving around 2003 mm (79 in) of rainfall per year. Despite the high annual total, it has a distinct rainy season from January to May. March is the wettest month. Sunshine peaks in July, when the city sees around 6.9 hours of sunshine per day.
Altamira Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Altamira - and find the best time to visit.
Monthly Temperature in Altamira
In Altamira temperatures are generally consistent throughout the year. On average, daytime temperatures range from a very warm 35°C (95°F) in September to a very warm 31°C (88°F) in February.
Nighttime temperatures range from 24°C (75°F) in September to 23°C (73°F) in February.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Altamira
Altamira experiences significant rainfall throughout the year, averaging 2003 mm (79 in) of precipitation annually. The seasons in Altamira bring significant changes in precipitation. The wettest month, March, receives heavy rainfall, with an average of 343 mm (14 in) of precipitation. This rainfall is distributed across 29 rainy days.
In contrast, the driest month, August, experiences much less rainfall, totaling 39 mm (1.5 in) over 13 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Altamira 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 Altamira
In Altamira, summer days are longer and more sunny, with daily sunshine hours peaking at 6.9 hours in July. As the darker season arrives, the brightness of the sun becomes less. February sees a soft sun for only 2.7 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Altamira by Month
The city experiences its highest humidity in March, reaching 88%. In October, the humidity drops to its lowest level at 78%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Altamira
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: June
- Warmest weather: August, September, October and November
- Most sunshine: July and August
- Fewest rainy days: August, September, October and November
- Wettest months: January, February, March, April and May, when rainfall is highest.
- Seasonal pattern: A distinct rainy season from January to May
Frequently asked questions about the climate in Altamira
What is the best time to visit Altamira?
June typically offers the most optimal weather in Altamira. In contrast, January, February, March, April, May, August, September, October, November and December tend to have less optimal conditions. Altamira has a distinct rainy season from January to May.
What temperatures can I expect in Altamira?
Daytime highs range from 31°C (88°F) in February to 35°C (95°F) in September. Nighttime lows range from 23°C (73°F) to 24°C (75°F). Temperatures stay relatively stable year-round.
How much rain does Altamira get?
Annual rainfall is around 2003 mm (79 in). March is the wettest month with 343 mm (14 in), while August is the driest with 39 mm (1.5 in).
How sunny is Altamira?
Altamira receives around 1,588 hours of sunshine per year. July is the sunniest month with 207 hours, while February is the cloudiest with just 81 hours.
Altamira 3-Day Forecast
Altamira on the map
Altamira is highlighted - select any city to see its climate.
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