Chartwell Temperature by Month

Chartwell, Gauteng, South Africa has an average annual maximum temperature of 25°C (77°F), with moderate seasonal shifts ranging from 20°C (68°F) in July to 28°C (82°F) in February. Below you'll find a full monthly breakdown and a comparison with cities worldwide.

Chartwell sees moderate fluctuations in temperatures, making each season distinct yet not extreme. Nights are considerably cooler, with lows ranging from 17°C (63°F) in February to 5°C (41°F) in July.

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

The coolest part of the day is typically between 4 AM and 6 AM, while 3 PM is usually the warmest, when solar heating is at its peak. February, the city's warmest month, averages 225 hours of sunshine.

The chart below shows the average temperature throughout the year:

Chartwell's average annual maximum temperature is 25°C (77°F). To put that in context, here's how it compares to a few well-known destinations:

Barcelona, Spain has an annual average of around 21°C (70°F), with warm summers and mild, fairly short winters.

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

Buenos Aires, Argentina averages 23°C (73°F) a year, with hot summers and mild winters, and seasons reversed compared to Europe.

Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.

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 Chartwell, July is the coolest month, with average highs of 20°C (68°F) and humidity around 49%, considered moderate. In February, the warmest month, temperatures average 28°C (82°F) with 70% humidity, conditions that feel high. 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.

Whether a city sits on the coast or deep inland makes a significant difference to its climate. Coastal areas tend to have more stable temperatures year-round, large bodies of water absorb heat slowly in summer and release it gradually in winter, keeping extremes in check. Cities far from the sea don't benefit from that buffer, which is why continental climates tend to have hotter summers and colder winters than their coastal counterparts at the same latitude.

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