Somerset West Temperature by Month
Somerset West, Western Cape, South Africa has an average annual maximum temperature of 21°C (70°F), with moderate seasonal shifts ranging from 17°C (63°F) in July to 26°C (79°F) in February. Below you'll find a full monthly breakdown and a comparison with cities worldwide.
Somerset West Monthly Temperatures
Somerset West 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 9°C (48°F) in July.
The chart below illustrates the average maximum day and minimum night temperatures in Somerset West by month:
The coldest point of the day usually falls between 4 AM and 6 AM, with temperatures peaking around 3 PM. February, the city's warmest month, gets 297 hours of sunshine.
The chart below shows the average temperature throughout the year:
Daily Historical Temperatures
50-year average (1976-2025)
Average high and low temperatures for each day of the month based on long-term records.
Average temperatures in July
Historical Somerset West Temperatures: 1976-2026
Browse day-by-day temperature records for Somerset West spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Somerset West 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
Somerset West vs World: Temperature Compared
Somerset West's average annual maximum temperature is 21°C (70°F). To put that in context, here's how it compares to a few well-known destinations:
Lisbon, Portugal averages 21°C (70°F) annually — warm summers, mild winters, and rain mainly in the cooler months.
Toronto, Canada averages 13°C (55°F) annually, with cold snowy winters balanced by genuinely warm summers.
Chicago, USA averages 15°C (59°F) annually — known for extreme seasonal swings, from bitterly cold winters to warm summers.
Tokyo, Japan averages 21°C (70°F) a year, with hot summers, cool winters, and a well-defined cherry blossom spring.
What Does the Temperature Feel Like in Somerset West?
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 Somerset West, July is the coolest month, with average highs of 17°C (63°F) and humidity around 81% — considered very high. In February, the warmest month, temperatures average 26°C (79°F) with 72% 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.
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 Somerset West this rarely lasts long on the ground.
For more on Somerset West's weather — including monthly rainfall, sunshine hours, and humidity — visit our Somerset West climate page.
