Climate averages 1991–2020
Altamira weather
in July.
A hot, moderately wet month: the 6th warmest and the 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a hot month in Altamira: daytime highs average 30.0°C and nights cool to about 22.8°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 46 mm of rain on roughly 10 days, which makes July a moderately wet month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 57 min on an average July day.
The nearest other city in this atlas is Breves (256 km away). In July its highs average 30.1°C, about as warm as Altamira, with 84 mm of rain.
Among the 448 cities listed in Brazil, Altamira ranks joint 57th of 448 for the warmest July highs and joint 256th of 448 for the driest July (rainfall, lowest first). The mean July high of those 448 cities is 24.7°C; Altamira is 5.3°C warmer than that mean.
From July to August, average highs rise by 2.0°C to 32.1°C, and monthly rainfall falls from 46 mm to 31 mm.
The annual picture
July in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Altamira climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.9°C23.0°C | 23.0°C | 248 | 28.1 | 12.312 h |
| February | 28.5°C22.9°C | 22.9°C | 276 | 26.8 | 12.212 h |
| March | 28.5°C22.9°C | 22.9°C | 328 | 29.1 | 12.112 h |
| April | 28.5°C23.0°C | 23.0°C | 280 | 28.2 | 12.012 h |
| May | 28.8°C23.1°C | 23.1°C | 190 | 26.1 | 12.012 h |
| June | 29.2°C22.9°C | 22.9°C | 71 | 16.5 | 11.912 h |
| July, selected | 30.0°C22.8°C | 22.8°C | 46 | 10.1 | 12.012 h |
| August | 32.1°C23.5°C | 23.5°C | 31 | 7.1 | 12.012 h |
| September | 33.1°C24.2°C | 24.2°C | 34 | 7.0 | 12.112 h |
| October | 33.0°C24.5°C | 24.5°C | 60 | 11.1 | 12.212 h |
| November | 31.9°C24.3°C | 24.3°C | 100 | 14.9 | 12.312 h |
| December | 30.4°C23.8°C | 23.8°C | 152 | 21.9 | 12.312 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
July in nearby cities
- Breves in JulyBrazil · 256 kmHigh 30.1°C · Low 23.6°C · 84 mm rain
- Tucuruí in JulyBrazil · 287 kmHigh 30.9°C · Low 23.9°C · 31 mm rain
- Santarém in JulyBrazil · 290 kmHigh 28.9°C · Low 25.0°C · 114 mm rain
- Cametá in JulyBrazil · 319 kmHigh 30.5°C · Low 23.9°C · 69 mm rain
- Tailândia in JulyBrazil · 362 kmHigh 31.2°C · Low 22.7°C · 36 mm rain
- Santana in JulyBrazil · 370 kmHigh 29.3°C · Low 23.6°C · 127 mm rain
- Macapá in JulyBrazil · 382 kmHigh 29.0°C · Low 23.7°C · 155 mm rain
- São Félix do Xingu in JulyBrazil · 383 kmHigh 32.5°C · Low 22.0°C · 8.0 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Altamira) is explained once on the Altamira year overview and on the Sources, method and limits page.