Climate averages 1991–2020
Sullana weather
in August.
A hot, very dry month: the coolest and the driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Sullana: daytime highs average 28.6°C and nights cool to about 17.0°C. By daytime temperature it is the coolest month of the year.
Rain is very rare: less than 1 mm falls in a typical August (the driest month of the year). Daylight, from sunrise to sunset, lasts about 11 h 57 min on an average August day.
The nearest other city in this atlas is Piura (31 km away). In August its highs average 27.6°C, 1.0°C cooler than Sullana, with almost no rain (under 1 mm).
Among the 24 cities listed in Peru, Sullana ranks 6th of 24 for the warmest August highs and joint 4th of 24 for the driest August (rainfall, lowest first). The mean August high of those 24 cities is 22.8°C; Sullana is 5.8°C warmer than that mean.
From August to September, average highs rise by 0.7°C to 29.2°C, and monthly rainfall rises from under 1 mm to 1.3 mm.
The annual picture
August 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
Sullana climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 32.8°C21.9°C | 21.9°C | 35 | 5.2 | 12.412 h |
| February | 32.5°C23.2°C | 23.2°C | 75 | 9.9 | 12.312 h |
| March | 32.8°C23.2°C | 23.2°C | 113 | 11.2 | 12.112 h |
| April | 32.6°C22.0°C | 22.0°C | 42 | 6.5 | 12.012 h |
| May | 31.7°C20.4°C | 20.4°C | 4.9 | 1.8 | 11.912 h |
| June | 29.9°C18.7°C | 18.7°C | 1.8 | 0.8 | 11.812 h |
| July | 28.7°C17.5°C | 17.5°C | 0.6 | 0.2 | 11.912 h |
| August, selected | 28.6°C17.0°C | 17.0°C | 0.2 | 0.1 | 12.012 h |
| September | 29.2°C17.3°C | 17.3°C | 1.3 | 0.4 | 12.112 h |
| October | 29.8°C17.7°C | 17.7°C | 2.5 | 0.9 | 12.212 h |
| November | 30.4°C18.3°C | 18.3°C | 6.9 | 1.8 | 12.312 h |
| December | 31.6°C20.0°C | 20.0°C | 18 | 3.8 | 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
August in nearby cities
- Piura in AugustPeru · 31 kmHigh 27.6°C · Low 17.0°C · 0.4 mm rain
- Talara in AugustPeru · 74 kmHigh 24.5°C · Low 17.2°C · 0.1 mm rain
- Tumbes in AugustPeru · 152 kmHigh 29.3°C · Low 20.4°C · 1.1 mm rain
- Loja in AugustEcuador · 193 kmHigh 20.7°C · Low 12.8°C · 24 mm rain
- Chiclayo in AugustPeru · 227 kmHigh 22.4°C · Low 16.4°C · 0.2 mm rain
- Cuenca in AugustEcuador · 292 kmHigh 16.8°C · Low 9.0°C · 54 mm rain
- La Libertad in AugustEcuador · 298 kmHigh 23.9°C · Low 20.1°C · 7.8 mm rain
- Eloy Alfaro in AugustEcuador · 318 kmHigh 27.3°C · Low 20.9°C · 101 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 Sullana) is explained once on the Sullana year overview and on the Sources, method and limits page.