Climate averages 1991–2020
Manacapuru weather
in September.
A hot, wet month: the 2nd warmest and the 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Manacapuru: daytime highs average 30.5°C and nights cool to about 25.0°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 138 mm of rain on roughly 21 days, which makes September a wet month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 05 min on an average September day.
The nearest other city in this atlas is Manaus (70 km away). In September its highs average 31.2°C, 0.7°C warmer than Manacapuru, with 121 mm of rain.
Among the 448 cities listed in Brazil, Manacapuru ranks joint 112th of 448 for the warmest September highs and 392nd of 448 for the driest September (rainfall, lowest first). The mean September high of those 448 cities is 27.5°C; Manacapuru is 3.0°C warmer than that mean.
From September to October, average highs rise by 0.2°C to 30.7°C, and monthly rainfall rises from 138 mm to 165 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
Manacapuru climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.7°C24.3°C | 24.3°C | 358 | 28.1 | 12.312 h |
| February | 28.6°C24.2°C | 24.2°C | 354 | 25.7 | 12.212 h |
| March | 28.7°C24.3°C | 24.3°C | 427 | 29.1 | 12.112 h |
| April | 28.6°C24.2°C | 24.2°C | 418 | 28.7 | 12.012 h |
| May | 28.5°C24.1°C | 24.1°C | 372 | 29.3 | 12.012 h |
| June | 28.7°C24.1°C | 24.1°C | 212 | 24.8 | 11.912 h |
| July | 29.1°C24.2°C | 24.2°C | 136 | 21.6 | 11.912 h |
| August | 30.2°C24.8°C | 24.8°C | 120 | 18.9 | 12.012 h |
| September, selected | 30.5°C25.0°C | 25.0°C | 138 | 20.5 | 12.112 h |
| October | 30.7°C25.2°C | 25.2°C | 165 | 21.4 | 12.212 h |
| November | 30.0°C25.0°C | 25.0°C | 209 | 24.1 | 12.312 h |
| December | 29.0°C24.6°C | 24.6°C | 334 | 28.4 | 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
September in nearby cities
- Manaus in SeptemberBrazil · 70 kmHigh 31.2°C · Low 24.6°C · 121 mm rain
- Itacoatiara in SeptemberBrazil · 242 kmHigh 31.2°C · Low 25.2°C · 109 mm rain
- Coari in SeptemberBrazil · 293 kmHigh 30.2°C · Low 24.6°C · 123 mm rain
- Parintins in SeptemberBrazil · 438 kmHigh 31.7°C · Low 24.9°C · 94 mm rain
- Tefé in SeptemberBrazil · 455 kmHigh 30.1°C · Low 23.8°C · 142 mm rain
- Itaituba in SeptemberBrazil · 526 kmHigh 32.9°C · Low 24.1°C · 78 mm rain
- Oriximiná in SeptemberBrazil · 555 kmHigh 31.9°C · Low 25.5°C · 71 mm rain
- Santarém in SeptemberBrazil · 663 kmHigh 31.2°C · Low 26.2°C · 68 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 Manacapuru) is explained once on the Manacapuru year overview and on the Sources, method and limits page.