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Story: Weather forecasting

Wind roses

41.29°S Dunedin Christchurch Nelson Wellington Gisborne New Plymouth Auckland
  • Dunedin 102 calm days per year Frequency (days per year) 50 25 0 Wind speed (knots) Over 21 17–21 11–16 1–10 Close  
  • Christchurch 62 calm days per year Frequency (days per year) 50 25 0 Wind speed (knots) Over 21 17–21 11–16 1–10 Close  
  • Nelson 98.5 calm days per year Frequency (days per year) 50 25 0 Wind speed (knots) Over 21 17–21 11–16 1–10 Close  
  • Wellington 25 calm days per year Frequency (days per year) Wind speed (knots) Over 21 17–21 11–16 1–10 50 25 0 Close  
  • Gisborne 33 calm days per year Frequency (days per year) Wind speed (knots) Over 21 17–21 11–16 1–10 50 25 0 Close  
  • New Plymouth 25.5 calm days per year Frequency (days per year) Wind speed (knots) Over 21 17–21 11–16 1–10 50 25 0 Close  
  • Auckland 47.5 calm days per year Wind speed (knots) Over 21 17–21 11–16 1–10 Frequency (days per year) 50 25 0 Close  

Click on placenames to view wind rose

A wind rose is a graphic representation of a locality’s wind climate. These wind roses show the very different weather in different areas of New Zealand, including wind direction, frequency of high winds and average number of calm days each year. Although Nelson and Wellington are on the same latitude, their climates are very different.

Source: E. Brenstrum, The New Zealand weather book. Nelson: Craig Potton, 1998, p. 98.

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How to cite this page

Erick Brenstrum, Weather forecasting – Using climate data, Te Ara – the Encyclopedia of New Zealand, https://teara.govt.nz/en/interactive/47384/wind-roses (accessed 8 June 2026).

Story by Erick Brenstrum, published 17 December 2020, updated 1 June 2016.