Climate averages 1991–2020
Piura weather
in September.
A hot, very dry month: the 10th warmest and the 3rd driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Piura: daytime highs average 28.4°C and nights cool to about 17.3°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 2.1 mm of rain on fewer than one day, which makes September a very dry month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 04 min on an average September day.
The nearest other city in this atlas is Sullana (31 km away). In September its highs average 29.2°C, 0.8°C warmer than Piura, with 1.3 mm of rain.
Among the 24 cities listed in Peru, Piura ranks 7th of 24 for the warmest September highs and 9th of 24 for the driest September (rainfall, lowest first). The mean September high of those 24 cities is 23.3°C; Piura is 5.1°C warmer than that mean.
From September to October, average highs rise by 0.7°C to 29.1°C, and monthly rainfall rises from 2.1 mm to 4.1 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
Piura climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 32.7°C22.1°C | 22.1°C | 37 | 5.5 | 12.412 h |
| February | 32.9°C23.4°C | 23.4°C | 63 | 9.5 | 12.312 h |
| March | 33.1°C23.4°C | 23.4°C | 107 | 11.2 | 12.112 h |
| April | 32.5°C22.0°C | 22.0°C | 38 | 6.4 | 12.012 h |
| May | 31.2°C20.3°C | 20.3°C | 6.7 | 2.3 | 11.912 h |
| June | 29.0°C18.7°C | 18.7°C | 2.8 | 0.9 | 11.812 h |
| July | 27.7°C17.5°C | 17.5°C | 0.7 | 0.2 | 11.812 h |
| August | 27.6°C17.0°C | 17.0°C | 0.4 | 0.1 | 11.912 h |
| September, selected | 28.4°C17.3°C | 17.3°C | 2.1 | 0.6 | 12.112 h |
| October | 29.1°C17.6°C | 17.6°C | 4.1 | 1.5 | 12.212 h |
| November | 29.7°C18.3°C | 18.3°C | 8.2 | 2.2 | 12.312 h |
| December | 31.1°C20.0°C | 20.0°C | 21 | 4.8 | 12.412 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
- Sullana in SeptemberPeru · 31 kmHigh 29.2°C · Low 17.3°C · 1.3 mm rain
- Talara in SeptemberPeru · 96 kmHigh 24.6°C · Low 17.3°C · 1.2 mm rain
- Tumbes in SeptemberPeru · 182 kmHigh 29.3°C · Low 20.6°C · 6.0 mm rain
- Chiclayo in SeptemberPeru · 198 kmHigh 22.7°C · Low 16.4°C · 0.9 mm rain
- Loja in SeptemberEcuador · 208 kmHigh 21.9°C · Low 13.9°C · 36 mm rain
- Cuenca in SeptemberEcuador · 314 kmHigh 18.1°C · Low 9.8°C · 62 mm rain
- La Libertad in SeptemberEcuador · 329 kmHigh 23.9°C · Low 20.0°C · 8.9 mm rain
- Eloy Alfaro in SeptemberEcuador · 347 kmHigh 27.6°C · Low 20.8°C · 117 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 Piura) is explained once on the Piura year overview and on the Sources, method and limits page.