Glencairn Heights Temperature by Month
The average annual maximum temperature in Glencairn Heights, South Africa is 19°C (66°F), with little variation between seasons. This page covers monthly averages, day-night differences, and how Glencairn Heights compares to cities worldwide.
Glencairn Heights Monthly Temperatures
Glencairn Heights enjoys a stable climate with temperatures staying pretty much the same throughout the year. Maximum daytime temperatures range from a moderate 17°C (63°F) in August to a comfortable 22°C (72°F) in February. Nights are consistently cool, with lows between 18°C (64°F) and 13°C (55°F).
The chart below illustrates the average maximum day and minimum night temperatures in Glencairn Heights by month:
From around 4 AM to 6 AM temperatures are at their lowest; by 3 PM they've climbed to their daily peak. February, the warmest month, averages 297 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Glencairn Heights 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.
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Glencairn Heights vs World: Temperature Compared
Glencairn Heights's average annual maximum temperature is 19°C (66°F). To put that in context, here's how it compares to a few well-known destinations:
Athens, Greece sits at 23°C (73°F) on average, with hot dry summers and mild winters characteristic of the Mediterranean.
Toronto, Canada averages 13°C (55°F) annually, with cold snowy winters balanced by genuinely warm summers.
New York City, USA averages 17°C (63°F) a year, with hot humid summers and cold winters that bring regular snowfall.
Perth, Australia averages 25°C (77°F) annually, with a classic Mediterranean climate — hot dry summers and mild wet winters.
What Does the Temperature Feel Like in Glencairn Heights?
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 Glencairn Heights, August is the coolest month, with average highs of 17°C (63°F) and humidity around 80% — considered very 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.
For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained — so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.
For more on Glencairn Heights's weather — including monthly rainfall, sunshine hours, and humidity — visit our Glencairn Heights climate page.
