Climate averages 1991–2020
Santarém weather
in April.
A hot, very wet month: 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 Santarém: daytime highs average 28.2°C and nights cool to about 24.5°C. By daytime temperature it is the coolest month of the year.
Expect about 450 mm of rain on roughly 29 days, which makes April a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 03 min on an average April day.
The nearest other city in this atlas is Oriximiná (149 km away). In April its highs average 28.8°C, 0.6°C warmer than Santarém, with 368 mm of rain.
Among the 448 cities listed in Brazil, Santarém ranks joint 153rd of 448 for the warmest April highs and joint 443rd of 448 for the driest April (rainfall, lowest first). The mean April high of those 448 cities is 27.0°C; Santarém is 1.2°C warmer than that mean.
From April to May, average highs rise by 0.1°C to 28.3°C, and monthly rainfall falls from 450 mm to 365 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
Santarém climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.6°C24.7°C | 24.7°C | 409 | 28.2 | 12.212 h |
| February | 28.3°C24.5°C | 24.5°C | 391 | 26.1 | 12.212 h |
| March | 28.3°C24.5°C | 24.5°C | 488 | 29.3 | 12.112 h |
| April, selected | 28.2°C24.5°C | 24.5°C | 450 | 29.2 | 12.112 h |
| May | 28.3°C24.6°C | 24.6°C | 365 | 29.6 | 12.012 h |
| June | 28.5°C24.8°C | 24.8°C | 187 | 24.8 | 12.012 h |
| July | 28.9°C25.0°C | 25.0°C | 114 | 19.2 | 12.012 h |
| August | 30.2°C25.7°C | 25.7°C | 74 | 13.0 | 12.012 h |
| September | 31.2°C26.2°C | 26.2°C | 68 | 10.5 | 12.112 h |
| October | 31.4°C26.5°C | 26.5°C | 107 | 11.9 | 12.212 h |
| November | 30.7°C26.2°C | 26.2°C | 149 | 16.6 | 12.212 h |
| December | 29.9°C25.7°C | 25.7°C | 233 | 21.7 | 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
- Oriximiná in AprilBrazil · 149 kmHigh 28.8°C · Low 24.0°C · 368 mm rain
- Parintins in AprilBrazil · 226 kmHigh 28.9°C · Low 23.7°C · 363 mm rain
- Itaituba in AprilBrazil · 248 kmHigh 29.0°C · Low 23.4°C · 287 mm rain
- Altamira in AprilBrazil · 290 kmHigh 28.5°C · Low 23.0°C · 280 mm rain
- Itacoatiara in AprilBrazil · 422 kmHigh 28.7°C · Low 24.4°C · 355 mm rain
- Santana in AprilBrazil · 475 kmHigh 28.4°C · Low 23.4°C · 350 mm rain
- Breves in AprilBrazil · 477 kmHigh 28.9°C · Low 23.4°C · 373 mm rain
- Macapá in AprilBrazil · 490 kmHigh 28.1°C · Low 23.4°C · 384 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 Santarém) is explained once on the Santarém year overview and on the Sources, method and limits page.