Petrolina Temperature by Month

The average annual maximum temperature in Petrolina, Pernambuco, Brazil is 34°C (93°F), with little variation between seasons. This page covers monthly averages, day-night differences, and how Petrolina compares to cities worldwide.

With minimal seasonal shifts, Petrolina experiences a constant climate year-round. Maximum daytime temperatures range from a very hot 36°C (97°F) in October to a very warm 31°C (88°F) in July. At night, temperatures range from 22°C (72°F) in October to 20°C (68°F) in July.

The chart below illustrates the average maximum day and minimum night temperatures in Petrolina by month:

The coldest point of the day usually falls between 4 AM and 6 AM, with temperatures peaking around 3 PM. October, the city's warmest month, gets 258 hours of sunshine.

The chart below shows the average temperature throughout the year:

Petrolina's average annual maximum temperature is 34°C (93°F). To put that in context, here's how it compares to a few well-known destinations:

Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.

Glasgow, Scotland averages 13°C (55°F) a year, mild but often grey, with cold winters and rarely hot summers.

Shanghai, China averages 21°C (70°F) a year, with warm summers, mild winters, and a noticeable spring and autumn.

Tokyo, Japan averages 21°C (70°F) a year, with hot summers, cool winters, and a well-defined cherry blossom spring.

Temperature alone doesn't tell the whole story, humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.

In Petrolina, July is the coolest month, with average highs of 31°C (88°F) and humidity around 60%, considered high. In October, the warmest month, temperatures average 36°C (97°F) with 48% humidity, conditions that feel moderate. For a full picture, see our humidity page.

Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.

The readings come from a range of sources, land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.

Seasonal temperature shifts influence more than just how warm it feels, they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.

Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in Petrolina this rarely lasts long on the ground.

For more on Petrolina's weather, including monthly rainfall, sunshine hours, and humidity, visit our Petrolina climate page.