Climate Insights for Malmesbury

The climate in Malmesbury is temperate. The average annual temperature is 13°C and approximately 174mm of precipitation falls per year. October is the wettest month, receiving around 33mm of rainfall. Malmesbury 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: July, March, June. The coldest months are November, December, October, when temperatures can drop to 4°C. Light snow can occur between August and October.

Malmesbury sees moderate temperature variation throughout the year, ranging from 4°C to 24°C. July is the warmest month, though highs remain moderate at 24°C with a mean of 18°C. November is the coolest month, with minimum temperatures around 4°C and an average of 9°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, with a 7°C shift in average temperatures.

Malmesbury is a quite dry location, receiving approximately 174mm of precipitation annually, which averages out to around 14mm per month. The wettest month is January, averaging 33mm of rainfall. September and October also tend to see above-average precipitation. The driest month is April, with just 0mm. That's 33mm 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. Light snowfall can occur between August and October, totalling around 11cm annually. October is the snowiest month with approximately 9cm.

Malmesbury is relatively calm, with an average annual wind speed of 4km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, averaging 7km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 5km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans.

It is currently winter in Malmesbury, which began on June 21, 2026. Malmesbury 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 July at around 24°C, while the coldest stretch bottoms out in November near 4°C. Spring is next, beginning on September 23, 2026 — 16 days from now.

The best time to visit Malmesbury is during March, July and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 16°C with modest rainfall averaging 12mm per month. By contrast, November can be quite cold with temperatures dropping to 4°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Malmesbury 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. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. 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.