Climate Overview
The climate in Diamantina is cold. The average annual temperature is -10°C and approximately 154mm of precipitation falls per year. December is the wettest month, receiving around 33mm of rainfall. Diamantina 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: April, March, January. The coldest months are July, August, September, when temperatures can drop to -26°C. Snowfall occurs from February to December, with around 133cm accumulating over the season.
Temperature
Temperatures in Diamantina vary considerably across the year, with a 30°C difference between the coldest and warmest months. April is the warmest month, though highs remain moderate at 4°C with a mean of 0°C. July brings the harshest conditions, with lows dropping to -26°C and an average temperature of -24°C. Daily temperature variation is modest, with an average difference of 6°C between highs and lows. The sharpest temperature change occurs between April and May, with a 11°C shift in average temperatures.
Precipitation
Diamantina is a quite dry location, receiving approximately 154mm of precipitation annually, which averages out to around 13mm per month. The wettest month is March, averaging 33mm of rainfall. December and November also tend to see above-average precipitation. The driest month is April, with just 0mm. That's 33mm less than March, 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. Snowfall is a regular feature from February to December, with around 133cm accumulating over the season. March typically sees the most snow at around 33cm.
Wind
Diamantina is relatively calm, with an average annual wind speed of 8km/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 14km/h, though still comfortable for most outdoor activities. The calmest conditions occur in November, with average winds dropping to 5km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 9km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans. Wind tends to pick up during the summer months. The seasonal averages are 6km/h in winter, 6km/h in spring, 10km/h in summer, 9km/h in autumn.
Seasons
16 days until Spring
It is currently winter in Diamantina, which began on June 21, 2026. Diamantina 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 April at around 4°C, while the coldest stretch bottoms out in July near -26°C. Spring is next, beginning on September 23, 2026 (16 days from now).
Spring
Temperatures range from -23 to -5°C. Rainfall is relatively light, with around 49mm over the season and a monthly average of 16mm. Winds are generally light, averaging 6km/h. Light layers work well as temperatures warm through the season. It is a great time to be outdoors.
Summer
Temperatures range from -5 to 2°C. Rainfall is relatively light, with around 61mm over the season and a monthly average of 20mm. Winds are generally light, averaging 10km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from -18 to 4°C. Precipitation is minimal, with only around 33mm for the entire season. Expect around 33cm of snow accumulation during this period. Winds are generally light, averaging 9km/h. Layered clothing works best as temperatures gradually cool. Enjoy the crisp air and changing scenery.
Winter
Temperatures range from -26 to -13°C. Precipitation is minimal, with only around 11mm for the entire season. Expect around 11cm of snow accumulation during this period. Winds are generally light, averaging 6km/h. Heavy layering and insulated outerwear are essential. Exposed skin should be minimised outdoors.
Monthly Climate Data
The table below shows monthly climate averages for Diamantina 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.