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Local rainfall

Tank sizing by region

Rainfall changes dramatically across New Zealand. Choose a region to see its monthly profile, data status and worked example.

North Island

  • Verified inputs Auckland Auckland reference 1,142.4 mm/year →
  • Verified inputs Bay of Plenty Tauranga reference 1,294.8 mm/year →
  • Verified inputs Gisborne / Tairāwhiti Gisborne reference 1,021.5 mm/year →
  • Verified inputs Hawke’s Bay Napier reference 824.3 mm/year →
  • Verified inputs Manawatū–Whanganui Palmerston North reference 977.9 mm/year →
  • Verified inputs Northland Whangārei reference 1,354.5 mm/year →
  • Verified inputs Taranaki New Plymouth reference 1,621.3 mm/year →
  • Verified inputs Waikato Hamilton reference 1,227.2 mm/year →
  • Verified inputs Wellington Wellington reference 1,225 mm/year →

South Island

  • Verified inputs Canterbury Christchurch reference 651.5 mm/year →
  • Verified inputs Marlborough Blenheim reference 652.4 mm/year →
  • Verified inputs Nelson Nelson reference 997.7 mm/year →
  • Verified inputs Otago Dunedin reference 882.9 mm/year →
  • Verified inputs Southland Invercargill reference 1,126.3 mm/year →
  • Verified inputs Tasman Richmond reference 1,063.9 mm/year →
  • Verified inputs West Coast Greymouth reference 2,554.3 mm/year →

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