Mannum Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Mannum.
Climate overview of Mannum
Mannum, South Australia, Australia, sees big temperature differences between seasons, with January peaking at 30°C (86°F) and July dropping to 16°C (61°F).
The city has a relatively dry climate, receiving around 352 mm (14 in) of rainfall per year. It does experience a distinct dry season from October to August. September is the wettest month and March the driest. The sunniest month is January, with 10.9 hours of sunshine per day on average.
Mannum Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Mannum — and find the best time to visit.
Monthly Temperature in Mannum
Visitors to Mannum can expect significant temperature changes throughout the year. On average, daytime temperatures range from a comfortable 30°C (86°F) in January to a moderate 16°C (61°F) in July.
Nighttime temperatures range from 14°C (57°F) in January to 6°C (43°F) in July.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Mannum
Mannum's climate is marked by below-average rainfall, accumulating 352 mm (14 in) of precipitation yearly. The seasons in Mannum bring significant changes in precipitation. The wettest month, September, receives moderate rainfall, with an average of 41 mm (1.6 in) of precipitation. This rainfall is distributed across 8 rainy days.
In contrast, the driest month, March, experiences much less rainfall, totaling 14 mm (0.6 in) over 6 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Mannum Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Mannum
In Mannum, summer days are longer and more sunny, with daily sunshine hours peaking at 10.9 hours in January. As the darker season arrives, the brightness of the sun becomes less. June sees a soft sun for only 4.7 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Mannum by Month
The relative humidity is moderate throughout the year in Mannum.
The city experiences its highest humidity in June, reaching 61%. In January, the humidity drops to its lowest level at 36%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Mannum
The weather does bring rainfall during this period, between 14 mm (0.6 in) and 41 mm (1.6 in). Looking for inspiration on where to travel this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
Frequently asked questions about the climate in Mannum
What is the best time to visit Mannum?
February, March, April, September, October, November and December typically offer the most optimal weather in Mannum. In contrast, June, July and August tend to have less optimal conditions. Mannum has a distinct dry season from October to August.
What temperatures can I expect in Mannum?
Daytime highs range from 16°C (61°F) in July to 30°C (86°F) in January. Nighttime lows range from 6°C (43°F) to 14°C (57°F). Temperatures vary considerably through the year.
How much rain does Mannum get?
Annual rainfall is around 352 mm (14 in). September is the wettest month with 41 mm (1.6 in), while March is the driest with 14 mm (0.6 in).
How sunny is Mannum?
Mannum receives around 2,768 hours of sunshine per year. January is the sunniest month with 326 hours, while June is the cloudiest with just 140 hours. Overall, Mannum enjoys abundant sunshine.
Mannum 3-Day Forecast
Mannum 3-Day Forecast
Mannum on the map
Mannum is highlighted — select any city to see its climate.
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