Climate averages 1991–2020
Sullana weather
in July.
A hot, very dry month: the 11th warmest and the 2nd driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
July is a hot month in Sullana: daytime highs average 28.7°C and nights cool to about 17.5°C. By daytime temperature it is the 11th warmest of the 12 months.
Rain is very rare: less than 1 mm falls in a typical July (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 52 min on an average July day.
The nearest other city in this atlas is Piura (31 km away). In July its highs average 27.7°C, 1.0°C cooler than Sullana, with almost no rain (under 1 mm).
Among the 24 cities listed in Peru, Sullana ranks 2nd of 24 for the warmest July highs and 5th of 24 for the driest July (rainfall, lowest first). The mean July high of those 24 cities is 22.4°C; Sullana is 6.3°C warmer than that mean.
From July to August, average highs fall by 0.1°C to 28.6°C, and monthly rainfall stays under 1 mm.
The annual picture
July 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, selected | 28.7°C17.5°C | 17.5°C | 0.6 | 0.2 | 11.912 h |
| August | 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
July in nearby cities
- Piura in JulyPeru · 31 kmHigh 27.7°C · Low 17.5°C · 0.7 mm rain
- Talara in JulyPeru · 74 kmHigh 24.9°C · Low 17.8°C · 0.8 mm rain
- Tumbes in JulyPeru · 152 kmHigh 29.2°C · Low 20.9°C · 4.5 mm rain
- Loja in JulyEcuador · 193 kmHigh 19.8°C · Low 12.8°C · 37 mm rain
- Chiclayo in JulyPeru · 227 kmHigh 22.7°C · Low 17.0°C · 0.2 mm rain
- Cuenca in JulyEcuador · 292 kmHigh 16.0°C · Low 9.2°C · 74 mm rain
- La Libertad in JulyEcuador · 298 kmHigh 24.1°C · Low 20.7°C · 13 mm rain
- Eloy Alfaro in JulyEcuador · 318 kmHigh 26.9°C · Low 21.2°C · 144 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.