On paper, Kempsey shouldn’t have a water problem. The Bureau of Meteorology puts its mean annual rainfall at 1,215.7mm, comfortably above the NSW average. Yet in October 2023, Kempsey Shire Council introduced Level 1 water restrictions across the area. The reason had nothing to do with how much rain fell locally that year, and everything to do with where the town’s water actually comes from.
Kempsey’s mains supply relies on flow in the Macleay River, which is fed by rainfall in catchments well upstream – around Armidale, Walcha and Bellbrook. When that upstream rain dries up for an extended stretch, river levels drop regardless of what’s happening in Kempsey itself, and restrictions follow. For anyone weighing up a tank against relying on mains water alone, that’s the detail worth understanding before you decide.
Kempsey’s Rainfall Pattern
| Month | Mean rainfall |
|---|---|
| January | 133.1mm |
| February | 158.1mm |
| March | 151.4mm |
| April | 115.3mm |
| August | 62.6mm |
| September | 55.4mm |
| December | 110.0mm |
| Annual mean | 1,215.7mm |
February and March bring the heaviest rain; August and September run driest. It’s no coincidence that upstream catchment levels also tend to dip in that same window, which is part of why the 2023 restrictions landed when they did. A tank sized to cover both the seasonal dry stretch and a possible restriction period is the more resilient approach here.
Sizing a Tank for Kempsey Conditions
How much tank makes sense depends heavily on the property:
- Garden watering only. 4,000–5,000 litres gets most Kempsey blocks through the typical August–September dip.
- Garden with toilet and laundry connected. Most households find 7,500–10,000 litres strikes the right balance – enough for everyday use, with a real buffer if restrictions are announced again.
- Rural properties around Frederickton, Gladstone and Bellbrook. These typically call for 10,000 litres or more, especially where the household isn’t leaning on mains pressure for daily supply anyway.
Anyone who lived through the 2023 restrictions already knows the value of a tank that isn’t just there for the garden – it’s what keeps a household’s routine largely unaffected the next time Council has to act.
Suburbs We Deliver To Across the Region
Delivery covers Kempsey and South West Rocks, extending out to Crescent Head, Frederickton and Gladstone, and further into the Macleay Valley as far as Bellbrook. Can’t see your suburb here? Get in touch with your postcode and our team will confirm.
Which Tank Suits a Kempsey Block?
- Frederickton, Gladstone and Bellbrook properties tend to have the space for a round tank, which remains the most cost-effective option per litre wherever room isn’t the constraint.
- Closer into town, around Kempsey itself and South West Rocks, blocks are tighter and side passages are often the only realistic spot. A slimline tankfits that gap without eating into the yard.
- Given the river-dependency issue behind the 2023 restrictions, there’s also a case for simply going bigger where the block allows it. A 10,000-litre-plus tankdoes more than cover the garden – it meaningfully reduces how exposed a household is the next time upstream conditions force Council’s hand.
Frequently Asked Questions: Water Tanks Kempsey
Why did Kempsey have water restrictions despite getting good rainfall?
Because the town’s mains supply depends on Macleay River flow, and that river is fed by rainfall well upstream around Armidale, Walcha and Bellbrook – not by Kempsey’s own local rainfall. An extended dry spell in that upstream catchment is what triggered Council’s Level 1 restrictions in October 2023.
What size water tank do I need in Kempsey?
4,000–5,000 litres is a reasonable start for garden use only. Once toilets and laundry are connected, most households move up to 7,500–10,000 litres, which also builds in a buffer for any future restriction period.
How much rain does Kempsey get on average?
Around 1,215.7mm a year, above the NSW state average, with February and March the wettest months and August and September the driest.
Do you deliver to Macleay Valley towns like Frederickton and Bellbrook?
Yes. Our delivery area runs from Kempsey and South West Rocks out through the Macleay Valley, including Frederickton, Gladstone and Bellbrook.
Does having a bigger tank actually help during a Council restriction?
It does. Stored rainwater isn’t subject to the same restriction rules as mains water, so a tank sized well beyond garden-only needs – particularly one plumbed into toilets and laundry – meaningfully cuts a household’s reliance on mains supply when restrictions are in place.
Buying a water tank in Kempsey? Browse the full tank range or call 1300 826 532 to confirm sizing and delivery for your suburb.