Climate averages 1991–2020
Oriximiná weather
in September.
A hot, moderately wet month: the 2nd warmest and the 2nd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Oriximiná: daytime highs average 31.9°C and nights cool to about 25.5°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 71 mm of rain on roughly 11 days, which makes September a moderately wet month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 06 min on an average September day.
The nearest other city in this atlas is Parintins (136 km away). In September its highs average 31.7°C, about as warm as Oriximiná, with 94 mm of rain.
Among the 448 cities listed in Brazil, Oriximiná ranks joint 72nd of 448 for the warmest September highs and joint 253rd of 448 for the driest September (rainfall, lowest first). The mean September high of those 448 cities is 27.5°C; Oriximiná is 4.4°C warmer than that mean.
From September to October, average highs rise by 0.1°C to 32.0°C, and monthly rainfall rises from 71 mm to 100 mm.
The annual picture
September 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, selected | 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 | 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
September in nearby cities
- Parintins in SeptemberBrazil · 136 kmHigh 31.7°C · Low 24.9°C · 94 mm rain
- Santarém in SeptemberBrazil · 149 kmHigh 31.2°C · Low 26.2°C · 68 mm rain
- Itaituba in SeptemberBrazil · 279 kmHigh 32.9°C · Low 24.1°C · 78 mm rain
- Itacoatiara in SeptemberBrazil · 325 kmHigh 31.2°C · Low 25.2°C · 109 mm rain
- Altamira in SeptemberBrazil · 437 kmHigh 33.1°C · Low 24.2°C · 34 mm rain
- Manaus in SeptemberBrazil · 485 kmHigh 31.2°C · Low 24.6°C · 121 mm rain
- Manacapuru in SeptemberBrazil · 555 kmHigh 30.5°C · Low 25.0°C · 138 mm rain
- Santana in SeptemberBrazil · 556 kmHigh 31.5°C · Low 24.7°C · 24 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.