Climate Overview
The climate in Trompsburg is temperate. The average annual temperature is 17°C and approximately 469mm of precipitation falls per year. Januar is the wettest month, receiving around 78mm of rainfall. Trompsburg 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: Januar, Dezember, Februar. The coldest months are Juli, Juni, August, when temperatures can drop to 1°C.
Temperature
Temperatures in Trompsburg vary considerably across the year, with a 30°C difference between the coldest and warmest months. The warmest month is Januar, when average highs reach 31°C and the mean temperature sits around 23°C. Juli is the coolest month, with minimum temperatures around 1°C and an average of 9°C. On average, daily temperatures fluctuate by about 15°C between overnight lows and afternoon highs. The sharpest temperature change occurs between August and September, with a 4°C shift in average temperatures.
Precipitation
Trompsburg is a relatively dry area, receiving approximately 469mm of precipitation annually, which averages out to around 39mm per month. The wettest month is January, averaging 78mm of rainfall. February and April also tend to see above-average precipitation. The driest month is August, with just 8mm. That's 70mm less than January, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.
Wind
Trompsburg is moderately windy, with an average annual wind speed of 22km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 25km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in May, with average winds dropping to 18km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 7km/h between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 20km/h in winter, 24km/h in spring, 23km/h in summer, 19km/h in autumn.
Seasons
2 days until Autumn
It is currently winter in Trompsburg, which began on June 21, 2026. Trompsburg is in the Southern Hemisphere, where the seasons are reversed — spring starts in September, summer in December, autumn in March, and winter in June. The warmest period peaks in Januar at around 31°C, while the coldest stretch bottoms out in Juli near 1°C. Autumn is next, beginning on March 20, 2026 — 2 days from now.
Spring
Temperatures range from 7 to 29°C. Rainfall is relatively light, with around 85mm over the season and a monthly average of 28mm. Winds are moderate at around 24km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.
Summer
Temperatures range from 15 to 31°C. Precipitation is moderate at around 206mm for the season, averaging 69mm per month. Winds are moderate at around 23km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 6 to 28°C. Rainfall is relatively light, with around 146mm over the season and a monthly average of 49mm. Winds are moderate at around 19km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.
Winter
Temperatures range from 1 to 20°C. Precipitation is minimal, with only around 32mm for the entire season. Winds are moderate at around 20km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Best Time to Visit
The best time to visit Trompsburg is during Januar, Februar, März, April, September, Oktober, November and Dezember, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 52mm per month. By contrast, Juli can be quite cold with temperatures dropping to 1°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.
Monthly Climate Data
The table below shows monthly climate averages for Trompsburg 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.