Seasonal ranking
Warmest sea temperature in New Zealand in September
Where the sea is warmest across New Zealand during September, ranked by long-term monthly average water temperature. Mission Bay (North Island, New Zealand) tops the list at around 14°C. Open any spot for today's live water temperature and a 7-day swim forecast.
- 1Mission BayNorth Island · New Zealand · Tasman SeaCold — wetsuit strongly recommended14°CSeptember average
- 2Orewa BeachNorth Island · New Zealand · Tasman SeaCold — wetsuit strongly recommended14°CSeptember average
- 3Omaha BeachNorth Island · New Zealand · Tasman SeaCold — wetsuit strongly recommended14°CSeptember average
- 4Pakiri BeachNorth Island · New Zealand · Tasman SeaCold — wetsuit strongly recommended14°CSeptember average
- 5Goat Island BeachNorth Island · New Zealand · Tasman SeaCold — wetsuit strongly recommended14°CSeptember average
- 6Hahei BeachNorth Island · New Zealand · Tasman SeaCold — wetsuit strongly recommended14°CSeptember average
- 7Hot Water BeachNorth Island · New Zealand · Tasman SeaCold — wetsuit strongly recommended14°CSeptember average
- 8New Chums BeachNorth Island · New Zealand · Tasman SeaCold — wetsuit strongly recommended14°CSeptember average
- 9Whangamata BeachNorth Island · New Zealand · Tasman SeaCold — wetsuit strongly recommended14°CSeptember average
- 10Waihi BeachNorth Island · New Zealand · Tasman SeaCold — wetsuit strongly recommended14°CSeptember average
- 11Mount MaunganuiNorth Island · New Zealand · Tasman SeaCold — wetsuit strongly recommended14°CSeptember average
- 12Papamoa BeachNorth Island · New Zealand · Tasman SeaCold — wetsuit strongly recommended14°CSeptember average
- 13Ohope BeachNorth Island · New Zealand · Tasman SeaCold — wetsuit strongly recommended14°CSeptember average
- 14Gisborne WaikanaeNorth Island · New Zealand · Tasman SeaCold — wetsuit strongly recommended14°CSeptember average
- 15Napier Marine ParadeNorth Island · New Zealand · Tasman SeaCold — wetsuit strongly recommended14°CSeptember average
- 16Castlepoint BeachNorth Island · New Zealand · Tasman SeaCold — wetsuit strongly recommended14°CSeptember average
- 17Riversdale BeachNorth Island · New Zealand · Tasman SeaCold — wetsuit strongly recommended14°CSeptember average
- 18Lyall BayNorth Island · New Zealand · Tasman SeaCold — wetsuit strongly recommended14°CSeptember average
- 19Days BayNorth Island · New Zealand · Tasman SeaCold — wetsuit strongly recommended14°CSeptember average
- 20Paraparaumu BeachNorth Island · New Zealand · Tasman SeaCold — wetsuit strongly recommended14°CSeptember average
- 21Waikanae BeachNorth Island · New Zealand · Tasman SeaCold — wetsuit strongly recommended14°CSeptember average
- 22Foxton BeachNorth Island · New Zealand · Tasman SeaCold — wetsuit strongly recommended14°CSeptember average
- 23Himatangi BeachNorth Island · New Zealand · Tasman SeaCold — wetsuit strongly recommended14°CSeptember average
- 24Mount Beach TaranakiNorth Island · New Zealand · Tasman SeaCold — wetsuit strongly recommended14°CSeptember average
- 25Ninety Mile BeachNorth Island · New Zealand · Tasman SeaCold — wetsuit strongly recommended14°CSeptember average
Warmest sea in September elsewhere
New Zealand in September — frequently asked questions
- Where is the sea warmest in New Zealand in September?
- Mission Bay in New Zealand has the warmest sea in New Zealand in September, averaging about 14.0 °C. Orewa Beach (14.0 °C) and Omaha Beach follow close behind.
- How many beaches in New Zealand are warm enough to swim in September?
- None of the top 25 ranked beaches in New Zealand reach 22 °C in September, so a wetsuit is recommended for anything longer than a quick dip.
- How are these September sea temperatures calculated?
- Each figure is a long-term monthly average sea surface temperature for that location, so it reflects a typical September rather than today's reading. Open a beach page for the live water temperature and 7-day forecast.
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