Climate averages 1991–2020
Oriximiná weather
in December.
A hot, very wet month: the 5th warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a hot month in Oriximiná: daytime highs average 30.2°C and nights cool to about 25.0°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 211 mm of rain on roughly 22 days, which makes December a very wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 13 min on an average December day.
The nearest other city in this atlas is Parintins (136 km away). In December its highs average 30.0°C, about as warm as Oriximiná, with 245 mm of rain.
Among the 448 cities listed in Brazil, Oriximiná ranks joint 83rd of 448 for the warmest December highs and joint 276th of 448 for the driest December (rainfall, lowest first). The mean December high of those 448 cities is 28.5°C; Oriximiná is 1.7°C warmer than that mean.
From December to January, average highs fall by 1.0°C to 29.2°C, and monthly rainfall rises from 211 mm to 329 mm.
The annual picture
December 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
Oriximiná climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.2°C24.2°C | 24.2°C | 329 | 26.9 | 12.212 h |
| February | 29.1°C24.0°C | 24.0°C | 311 | 24.9 | 12.212 h |
| March | 29.0°C24.0°C | 24.0°C | 378 | 28.4 | 12.112 h |
| April | 28.8°C24.0°C | 24.0°C | 368 | 28.5 | 12.112 h |
| May | 28.7°C24.0°C | 24.0°C | 272 | 28.1 | 12.012 h |
| June | 29.1°C24.1°C | 24.1°C | 140 | 21.3 | 12.012 h |
| July | 29.6°C24.1°C | 24.1°C | 91 | 16.7 | 12.012 h |
| August | 31.0°C24.8°C | 24.8°C | 70 | 11.3 | 12.112 h |
| September | 31.9°C25.5°C | 25.5°C | 71 | 10.7 | 12.112 h |
| October | 32.0°C25.8°C | 25.8°C | 100 | 12.7 | 12.112 h |
| November | 31.1°C25.5°C | 25.5°C | 149 | 16.7 | 12.212 h |
| December, selected | 30.2°C25.0°C | 25.0°C | 211 | 21.5 | 12.212 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
December in nearby cities
- Parintins in DecemberBrazil · 136 kmHigh 30.0°C · Low 24.4°C · 245 mm rain
- Santarém in DecemberBrazil · 149 kmHigh 29.9°C · Low 25.7°C · 233 mm rain
- Itaituba in DecemberBrazil · 279 kmHigh 30.3°C · Low 23.9°C · 209 mm rain
- Itacoatiara in DecemberBrazil · 325 kmHigh 29.4°C · Low 24.8°C · 268 mm rain
- Altamira in DecemberBrazil · 437 kmHigh 30.4°C · Low 23.8°C · 152 mm rain
- Manaus in DecemberBrazil · 485 kmHigh 29.6°C · Low 24.4°C · 289 mm rain
- Manacapuru in DecemberBrazil · 555 kmHigh 29.0°C · Low 24.6°C · 334 mm rain
- Santana in DecemberBrazil · 556 kmHigh 30.4°C · Low 24.3°C · 105 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 Oriximiná) is explained once on the Oriximiná year overview and on the Sources, method and limits page.