Climate Insights for Swellendam

The climate in Swellendam is temperate. The average annual temperature is 17°C and approximately 366 mm of precipitation falls per year. March is the wettest month, receiving around 40 mm of rainfall. Swellendam is in the Southern Hemisphere. The seasons are reversed: summer runs from December to February, while winter falls between June and August. The summer months are: January, February, December. The coldest months are July, August, June, when temperatures can drop to 5°C.The climate in Swellendam is temperate. The average annual temperature is 62°F and approximately 14.4 in of precipitation falls per year. March is the wettest month, receiving around 1.6 in of rainfall. Swellendam is in the Southern Hemisphere. The seasons are reversed: summer runs from December to February, while winter falls between June and August. The summer months are: January, February, December. The coldest months are July, August, June, when temperatures can drop to 42°F.

Temperatures in Swellendam vary considerably across the year, with a 24°C difference between the coldest and warmest months. The warmest month is January, when average highs reach 29°C and the mean temperature sits around 22°C. July is the coolest month, with minimum temperatures around 5°C and an average of 11°C. On average, daily temperatures fluctuate by about 13°C between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, with a 3°C shift in average temperatures.Temperatures in Swellendam vary considerably across the year, with a 42°F difference between the coldest and warmest months. The warmest month is January, when average highs reach 84°F and the mean temperature sits around 71°F. July is the coolest month, with minimum temperatures around 42°F and an average of 52°F. On average, daily temperatures fluctuate by about 23°F between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, with a 5°F shift in average temperatures.

Swellendam is a quite dry location, receiving approximately 366 mm of precipitation annually, which averages out to around 30 mm per month. The wettest month is March, averaging 40 mm of rainfall. June and July also tend to see above-average precipitation. The driest month is February, with just 19 mm. That's 21 mm less than March, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around.Swellendam is a quite dry location, receiving approximately 14.4 in of precipitation annually, which averages out to around 1.2 in per month. The wettest month is March, averaging 1.6 in of rainfall. June and July also tend to see above-average precipitation. The driest month is February, with just 0.7 in. That's 0.8 in less than March, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around.

Swellendam is relatively calm, with an average annual wind speed of 10km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is January, averaging 11km/h, though still comfortable for most outdoor activities. The calmest conditions occur in May, with average winds dropping to 8km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 3km/h gap between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 9km/h in winter, 10km/h in spring, 11km/h in summer, 9km/h in autumn.Swellendam is mildly breezy, with an average annual wind speed of 6mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is January, averaging 7mph, though still comfortable for most outdoor activities. The calmest conditions occur in May, with average winds dropping to 5mph, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 2mph gap between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 5mph in winter, 6mph in spring, 7mph in summer, 5mph in autumn.

The best time to visit Swellendam is during January, February, March, April, October, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 29 mm per month. By contrast, July can be quite cold with temperatures dropping to 5°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.The best time to visit Swellendam is during January, February, March, April, October, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 67°F with modest rainfall averaging 1.1 in per month. By contrast, July can be quite cold with temperatures dropping to 42°F. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Swellendam based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.The table below shows monthly climate averages for Swellendam based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Fahrenheit (°F). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in miles per hour (mph). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.