Altamira climate
Altamira (Pará, Brazil) has a tropical monsoon climate (Köppen Am). The average temperature over the year is 26 °C80 °F, and about 1,896 mm75 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Altamira climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 2984 | 2373 | 2679 | 2268.9 |
| Feb | 2882 | 2373 | 2577 | 27911 |
| Mar | 2882 | 2373 | 2577 | 33313 |
| Apr | 2882 | 2373 | 2577 | 30912 |
| May | 2882 | 2373 | 2578 | 2098.2 |
| Jun | 2883 | 2373 | 2578 | 1054.1 |
| Jul | 2984 | 2272 | 2578 | 672.6 |
| Aug | 3187 | 2272 | 2780 | 411.6 |
| Sep | 3391 | 2374 | 2882 | 461.8 |
| Oct | 3493 | 2475 | 2984 | 622.5 |
| Nov | 3493 | 2475 | 2984 | 732.9 |
| Dec | 3189 | 2374 | 2781 | 1465.8 |
| Year | 3493 | 2272 | 2680 | 1,89675 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 86% | 83% | 4.5 | 12:17 |
| Feb | 92% | 87% | 4.5 | 12:13 |
| Mar | 93% | 87% | 4.6 | 12:08 |
| Apr | 93% | 84% | 4.6 | 12:03 |
| May | 92% | 71% | 4.6 | 11:58 |
| Jun | 91% | 52% | 4.9 | 11:56 |
| Jul | 89% | 44% | 5.2 | 11:57 |
| Aug | 83% | 46% | 5.5 | 12:01 |
| Sep | 74% | 53% | 5.5 | 12:06 |
| Oct | 68% | 68% | 5.1 | 12:11 |
| Nov | 69% | 76% | 4.7 | 12:16 |
| Dec | 76% | 80% | 4.5 | 12:18 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Altamira is like
The warmest month is October, with an average high of 34 °C93 °F and a low of 24 °C75 °F. The coldest is February, when highs average 28 °C82 °F and lows 23 °C73 °F. Seasonal differences are small — just 3.8 °C6.8 °F between the warmest and the coolest month.
It is wet, with about 1,896 mm75 in of precipitation per year. The wettest three-month stretch is February–April, which brings 49% of the annual total. The wettest month is March (333 mm13 in), the driest is August (41 mm1.6 in).
Relative humidity ranges from 68% in October to 93% in April. The clearest skies (lowest average cloud amount, 44%) are typical of July. Average wind speed near the ground ranges from 1 km/h (0 mph) in January to 1 km/h (1 mph) in July.
Best time to visit Altamira
Based on these averages, the most comfortable months for sightseeing and outdoor activities are July–September: average highs of 29 °C84 °F to 33 °C91 °F with 41 mm1.6 in to 67 mm2.6 in of precipitation per month.
The most challenging month is March, which is very wet (333 mm13 in) and humid (93% relative humidity).
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Altamira
- Wetter months (January–May) — highs 2882 to 29 °C84 °F, lows around 23 °C73 °F, about 271 mm11 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and a good rain jacket or umbrella and quick-drying shoes.
- Drier months (June–December) — highs 2883 to 34 °C93 °F, lows 2272 to 24 °C75 °F, about 77 mm3.0 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
How Altamira compares
Compared with Santarém, about 290 km to the west, Altamira is on average 1.2 °C2.1 °F cooler and receives a similar amount of precipitation. The difference is largest in October (1.5 °C2.8 °F cooler).
Of the 223 places in Brazil covered by World Climates, Altamira is the 50th warmest by annual mean temperature and the 16th wettest by annual precipitation. See all of them on the Brazil climate page.
Places in other countries with the most similar temperature and rainfall pattern (seasons shifted for the other hemisphere where needed): Metro (Indonesia, Am), Merauke (Indonesia, Am) and Bacolod City (Philippines, Af).
Nearby places
- Breves 256 km · 27 °C80 °F · 2,418 mm95 in
- Tucuruí 287 km · 27 °C81 °F · 1,902 mm75 in
- Santarém 290 km · 28 °C82 °F · 1,920 mm76 in
- Cametá 319 km · 27 °C81 °F · 2,513 mm99 in
- Santana 370 km · 27 °C80 °F · 2,068 mm81 in
- Macapá 382 km · 27 °C80 °F · 2,068 mm81 in
- São Félix do Xingu 383 km · 27 °C80 °F · 1,648 mm65 in
- Parauapebas 408 km · 27 °C81 °F · 1,531 mm60 in
Frequently asked questions
What is the warmest month in Altamira?
October is the warmest month in Altamira, with an average high of 34 °C (93 °F) and an average low of 24 °C (75 °F).
What is the coldest month in Altamira?
February is the coldest month, with an average high of 28 °C (82 °F) and an average low of 23 °C (73 °F).
When does it rain the most in Altamira?
March is the wettest month with about 333 mm (13.1 in) of precipitation; August is the driest with about 41 mm (1.6 in).
What is the best time to visit Altamira?
Judging by long-term averages, the most comfortable months are July–September.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.