Petersburg Temperature by Month
The average annual maximum temperature in Petersburg, Eastern Cape, South Africa is 23°C (73°F), with daytime highs ranging from 17°C (63°F) in July to 28°C (82°F) in January. This page covers monthly averages, day-night differences, and how Petersburg compares to cities worldwide.
Petersburg Monthly Temperatures
The climate in Petersburg is dynamic, ranging widely from moderate in winter to comfortable in summer. Nights are significantly colder, with lows dropping from 15°C (59°F) in January to 4°C (39°F) in July.
The chart below illustrates the average maximum day and minimum night temperatures in Petersburg by month:
From around 4 AM to 6 AM temperatures are at their lowest; by 3 PM they've climbed to their daily peak.
The chart below shows the average temperature throughout the year:
Temperature: Petersburg vs South Africa
The map below shows the annual temperature across South Africa. You can also select individual months if you want to compare a specific time of year.
very warm
warm
pleasant
moderate
cold
very cold
Petersburg vs World: Temperature Compared
Petersburg's average annual maximum temperature is 23°C (73°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.
Beijing, China averages 20°C (68°F) annually, but with big seasonal swings — very cold winters and hot summers.
Brisbane, Australia averages 26°C (79°F) a year, with warm winters and hot, humid summers.
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 Petersburg this rarely lasts long on the ground.
For more on Petersburg's weather — including monthly rainfall, sunshine hours, and humidity — visit our Petersburg climate page.
