Climate averages 1991–2020
Altamira weather
in April.
A hot, very wet month: one of the coolest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a hot month in Altamira: daytime highs average 28.5°C and nights cool to about 23.0°C. By daytime temperature it is one of the coolest months of the year.
Expect about 280 mm of rain on roughly 28 days, which makes April a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 02 min on an average April day.
The nearest other city in this atlas is Breves (256 km away). In April its highs average 28.9°C, about as warm as Altamira, with 373 mm of rain.
Among the 448 cities listed in Brazil, Altamira ranks joint 126th of 448 for the warmest April highs and 416th of 448 for the driest April (rainfall, lowest first). The mean April high of those 448 cities is 27.0°C; Altamira is 1.5°C warmer than that mean.
From April to May, average highs rise by 0.3°C to 28.8°C, and monthly rainfall falls from 280 mm to 190 mm.
The annual picture
April 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, selected | 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 | 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
April in nearby cities
- Breves in AprilBrazil · 256 kmHigh 28.9°C · Low 23.4°C · 373 mm rain
- Tucuruí in AprilBrazil · 287 kmHigh 29.1°C · Low 23.8°C · 302 mm rain
- Santarém in AprilBrazil · 290 kmHigh 28.2°C · Low 24.5°C · 450 mm rain
- Cametá in AprilBrazil · 319 kmHigh 28.9°C · Low 23.7°C · 426 mm rain
- Tailândia in AprilBrazil · 362 kmHigh 29.2°C · Low 22.8°C · 326 mm rain
- Santana in AprilBrazil · 370 kmHigh 28.4°C · Low 23.4°C · 350 mm rain
- Macapá in AprilBrazil · 382 kmHigh 28.1°C · Low 23.4°C · 384 mm rain
- São Félix do Xingu in AprilBrazil · 383 kmHigh 28.7°C · Low 22.5°C · 234 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.