Skip to content
seatemperatures.net

Coldest sea in New Zealand in July

245 coastal locations in New Zealand ranked by typical July sea temperature, coldest first. Region-wide average in July: 14.1°C.

Coldest in July

Campbell Island/Motu Ihupuku - Perseverance Harbour

7.7°C July mean in New Zealand

Regional July average

14.1°C

across all 245 coastal locations in New Zealand

Vs annual mean

-2.2°C

below the year-round regional average

What the New Zealand sea feels like in July

Water at this temperature is cold and will feel very cold initially, but the body will get used to it and longer swims are possible. Experienced swimmers can manage several hours of swimming, however hypothermia is still a real risk.

New Zealand monthly average 13.6°C to 19.3°C
J
F
M
A
M
J
J
A
S
O
N
D
  • Warmest month February 19.3°C
  • Coldest month August 13.6°C
  • Annual mean 16.3°C
  • Months above 20°C 0 of 12

Where July fits in the year

July sits inside the regional pattern shown on the left. Pick a different month to see how the ranking shifts.

All twelve New Zealand month rankings:

New Zealand sea temperature map (live)

The map shows today's latest reading at every New Zealand location. The list below is based on the typical July mean.

Zoom in to see individual locations. Click a pin for water temperatures. View list →
°C -2 0 1 3 5 7 9 11 13 15 17 19 21 24 27 30 35

Top 50 coldest New Zealand locations in July

Sorted by typical July mean from a decade of daily readings, coldest first. Click any place for the full location page.

# Location July mean
1 Campbell Island/Motu Ihupuku - Perseverance Harbour New Zealand Outlying Islands 7.7°C
2 Auckland Island - Carnley Harbour Auckland 9.0°C
3 Timaru 10.0°C
4 Sumner 10.1°C
5 Akaroa 10.3°C
6 Christchurch 10.3°C
7 Lyttelton 10.3°C
8 Dunedin 10.4°C
9 Portobello 10.4°C
10 Kaka Point 10.5°C
11 French Bay Canterbury 10.5°C
12 Tikao Bay Canterbury 10.5°C
13 Oamaru Otago 10.7°C
14 Green Island Otago 10.7°C
15 Port Chalmers Otago 10.8°C
16 Spit Wharf Otago 10.8°C
17 Riverton/Aparima Southland 10.9°C
18 Nugget Point Otago 10.9°C
19 Invercargill 10.9°C
20 Bluff Southland 11.0°C
21 Dog Island Southland 11.0°C
22 Waipapa Point Southland 11.0°C
23 Riverton 11.0°C
24 New River Entrance Southland 11.1°C
25 Waikawa Harbour Southland 11.1°C
Show 25 more ▸
26 Kawakaputa Bay Southland 11.2°C
27 Ruapuke Island Southland 11.2°C
28 Kaikoura 11.2°C
29 Oban Southland 11.3°C
30 Pahia 11.3°C
31 Yankee River Southland 11.3°C
32 Stewart Island 11.5°C
33 Port Adventure Southland 11.5°C
34 Snares Islands/Tini Heke - North East Island New Zealand Outlying Islands 11.6°C
35 Port Craig Southland 12.1°C
36 Ernest Islands Southland 12.1°C
37 Easy Harbour Southland 12.1°C
38 Small Craft Retreat Southland 12.1°C
39 Cape Campbell Marlborough 12.4°C
40 Kaingaroa Chatham Islands Territory 12.4°C
41 Owenga Chatham Islands Territory 12.4°C
42 Waitangi Chatham Islands Territory 12.4°C
43 Port Underwood Marlborough 12.4°C
44 Solander Island (Hautere) Southland 12.4°C
45 Picton 12.6°C
46 Mapua 12.6°C
47 Nelson 12.6°C
48 Chalky Island - Sealers Bay Southland 12.7°C
49 Coal Island - Fishing Bay Southland 12.7°C
50 Jane Coves Southland 12.7°C

Warmest 10 in New Zealand in July

Same data the other way. The warmest spots for the same month.

# Location July mean
1 Fishing Rock Sugar Loaf Islands 19.5°C
2 Coopers Beach 16.9°C
3 Bay of Islands 16.8°C
4 Kerikeri 16.7°C
5 Waiiti Bay Northland 16.6°C
6 North Cape (Otou) Northland 16.6°C
7 Matapouri 16.6°C
8 Ngunguru 16.6°C
9 Tutukaka 16.6°C
10 Whangamumu Harbour Northland 16.6°C

More on this region