Average Humidity for September in New Zealand

September averages for the relative humidity at cities, towns and islands throughout New Zealand are listed below.

The numbers are long-term averages based on weather data collected from 1991 to 2020.

Relative humidity measures the actual amount of moisture in the air as a percentage of the maximum amount of moisture the air can hold. These humidity readings are for 9:00 am local time.

North Island

Average humidity in September
Place %
Auckland 81
Cape Reinga 83
Gisborne 72
Great Barrier Island 80
Hamilton 84
Kaikohe 85
Kaitaia 86
Kerikeri 85
Masterton 80
Napier 70
New Plymouth 83
Palmerston North 80
Rotorua 83
Taupo 81
Tauranga 76
Thames 82
Waiheke Island 85
Wellington 80
Whakapapa Village, Tongariro 84
Whanganui 78
Whangaparaoa 82
Whangarei 81
Whitianga 78

South Island

September relative humidity averages
Place %
Akaroa 74
Arthur's Pass 86
Blenheim 74
Christchurch 79
Dunedin 70
Farewell Spit 79
Franz Josef 87
Greymouth 83
Invercargill 81
Kaikoura  70
Lake Rotoiti 81
Lake Tekapo 71
Manapouri 86
Milford Sound 93
Mt Cook 70
Nelson 79
Queenstown 72
Secretary Island 84
Timaru 78
Westport 83

Other Islands

Humidity averages for September
Place %
Auckland Islands 84
Campbell Island 83
Chatham Island 82
Raoul Island 72
Stewart Island, Oban 86
Reference

NIWA (New Zealand National Institute of Water and Atmospheric Research). The National Climate Database.

New Zealand Humidity
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