Climate averages 1991–2020
Manaus weather
in May.
A hot, very wet month: one of the coolest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a hot month in Manaus: daytime highs average 29.0°C and nights cool to about 23.9°C. By daytime temperature it is one of the coolest months of the year.
Expect about 312 mm of rain on roughly 29 days, which makes May a very wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 59 min on an average May day.
The nearest other city in this atlas is Manacapuru (70 km away). In May its highs average 28.5°C, about as warm as Manaus, with 372 mm of rain.
Among the 448 cities listed in Brazil, Manaus ranks joint 75th of 448 for the warmest May highs and 442nd of 448 for the driest May (rainfall, lowest first). The mean May high of those 448 cities is 25.3°C; Manaus is 3.7°C warmer than that mean.
From May to June, average highs rise by 0.2°C to 29.2°C, and monthly rainfall falls from 312 mm to 164 mm.
The annual picture
May 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
Manaus climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.2°C24.1°C | 24.1°C | 296 | 28.0 | 12.312 h |
| February | 29.1°C24.0°C | 24.0°C | 296 | 25.5 | 12.212 h |
| March | 29.2°C24.1°C | 24.1°C | 375 | 29.5 | 12.112 h |
| April | 29.0°C24.0°C | 24.0°C | 363 | 28.8 | 12.012 h |
| May, selected | 29.0°C23.9°C | 23.9°C | 312 | 29.1 | 12.012 h |
| June | 29.2°C23.7°C | 23.7°C | 164 | 23.5 | 11.912 h |
| July | 29.6°C23.6°C | 23.6°C | 105 | 19.9 | 12.012 h |
| August | 30.8°C24.1°C | 24.1°C | 99 | 17.3 | 12.012 h |
| September | 31.2°C24.6°C | 24.6°C | 121 | 19.5 | 12.112 h |
| October | 31.3°C24.9°C | 24.9°C | 159 | 21.6 | 12.212 h |
| November | 30.6°C24.8°C | 24.8°C | 193 | 23.6 | 12.312 h |
| December | 29.6°C24.4°C | 24.4°C | 289 | 28.2 | 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
May in nearby cities
- Manacapuru in MayBrazil · 70 kmHigh 28.5°C · Low 24.1°C · 372 mm rain
- Itacoatiara in MayBrazil · 176 kmHigh 28.7°C · Low 24.3°C · 277 mm rain
- Coari in MayBrazil · 363 kmHigh 28.4°C · Low 23.7°C · 297 mm rain
- Parintins in MayBrazil · 369 kmHigh 29.0°C · Low 23.7°C · 292 mm rain
- Itaituba in MayBrazil · 467 kmHigh 29.1°C · Low 23.4°C · 203 mm rain
- Oriximiná in MayBrazil · 485 kmHigh 28.7°C · Low 24.0°C · 272 mm rain
- Tefé in MayBrazil · 522 kmHigh 28.5°C · Low 23.2°C · 329 mm rain
- Santarém in MayBrazil · 595 kmHigh 28.3°C · Low 24.6°C · 365 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 Manaus) is explained once on the Manaus year overview and on the Sources, method and limits page.