South Australia Rainfall Calculator
Click a region on the map or select a location to estimate your rainwater tank size
Interactive Map — click a region or town marker
Rainfall:
Low
High
| mm/year
Location & Rainfall
Click the map or choose below
Auto-fills when you select a location. You can edit manually.
Roof & Household
Roof Catchment Area
—
m²
Annual Water Collection
—
litres/year
Household Annual Usage
—
litres/year
Recommended Tank Size
1,000L
5,000L
10,000L
15,000L
25,000L
Recommended Minimum
—
Runoff Coefficient
0.85
Daily Usage Per Person
200 L
Self-Sufficiency
—