Climate averages 1991–2020
Puerto Maldonado weather
in September.
A hot, wet month: the warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Puerto Maldonado: daytime highs average 30.8°C and nights cool to about 22.0°C. By daytime temperature it is the warmest month of the year.
Expect about 119 mm of rain on roughly 14 days, which makes September a wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 01 min on an average September day.
The nearest other city in this atlas is Cusco (318 km away). In September its highs average 16.2°C, 14.5°C cooler than Puerto Maldonado, with 37 mm of rain.
Among the 24 cities listed in Peru, Puerto Maldonado ranks 1st of 24 for the warmest September highs and 21st of 24 for the driest September (rainfall, lowest first). The mean September high of those 24 cities is 23.3°C; Puerto Maldonado is 7.5°C warmer than that mean.
From September to October, average highs fall by 0.6°C to 30.2°C, and monthly rainfall rises from 119 mm to 223 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
Puerto Maldonado climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.3°C23.0°C | 23.0°C | 369 | 27.1 | 12.813 h |
| February | 29.0°C22.8°C | 22.8°C | 361 | 24.7 | 12.513 h |
| March | 29.2°C22.8°C | 22.8°C | 300 | 25.6 | 12.212 h |
| April | 28.9°C22.3°C | 22.3°C | 168 | 19.1 | 11.812 h |
| May | 27.7°C21.1°C | 21.1°C | 88 | 13.8 | 11.512 h |
| June | 27.5°C20.4°C | 20.4°C | 52 | 9.2 | 11.411 h |
| July | 27.9°C19.7°C | 19.7°C | 46 | 7.8 | 11.511 h |
| August | 30.1°C20.8°C | 20.8°C | 62 | 8.6 | 11.712 h |
| September, selected | 30.8°C22.0°C | 22.0°C | 119 | 13.5 | 12.012 h |
| October | 30.2°C22.7°C | 22.7°C | 223 | 21.4 | 12.412 h |
| November | 29.4°C22.7°C | 22.7°C | 259 | 22.2 | 12.713 h |
| December | 29.4°C23.0°C | 23.0°C | 330 | 26.1 | 12.813 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
- Cusco in SeptemberPeru · 318 kmHigh 16.2°C · Low 6.6°C · 37 mm rain
- Rio Branco in SeptemberBrazil · 328 kmHigh 32.4°C · Low 22.7°C · 76 mm rain
- Juliaca in SeptemberPeru · 339 kmHigh 15.9°C · Low 1.1°C · 46 mm rain
- Puno in SeptemberPeru · 372 kmHigh 15.8°C · Low 2.2°C · 51 mm rain
- Riberalta in SeptemberBolivia · 385 kmHigh 32.2°C · Low 23.1°C · 84 mm rain
- Abancay in SeptemberPeru · 416 kmHigh 21.0°C · Low 10.7°C · 41 mm rain
- La Paz in SeptemberBolivia · 449 kmHigh 14.3°C · Low 2.4°C · 36 mm rain
- Viacha in SeptemberBolivia · 462 kmHigh 15.2°C · Low 0.7°C · 32 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 Puerto Maldonado) is explained once on the Puerto Maldonado year overview and on the Sources, method and limits page.