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Warmest sea in New Zealand in April

245 coastal locations in New Zealand ranked by their typical April sea temperature. Region-wide average in April: 17.8°C. The top of the list is where to find the warmest swimming this month.

Warmest in April

Fishing Rock

23.1°C April mean in New Zealand

Regional April average

17.8°C

across all 245 coastal locations in New Zealand

Vs annual mean

+1.5°C

above the year-round regional average

What the New Zealand sea feels like in April

At this temperature, water will feel cold compared to a swimming pool, but with a bit of experience and practice most people will find the water relatively comfortable to swim in.

New Zealand monthly average 13.6°C to 19.3°C
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  • 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 April fits in the year

April 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 April mean, useful for trip planning weeks or months ahead.

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 warmest New Zealand locations in April

Sorted by the typical April mean built from a decade of daily readings at each location. Click any place for its 30-day chart, monthly profile, and full 10-year history.

# Location April mean
1 Fishing Rock Sugar Loaf Islands 23.1°C
2 Coopers Beach 20.6°C
3 Bay of Islands 20.6°C
4 Kerikeri 20.5°C
5 Matapouri 20.4°C
6 Ngunguru 20.4°C
7 Tutukaka 20.4°C
8 Whangamumu Harbour Northland 20.4°C
9 Paihia 20.4°C
10 Russell 20.4°C
11 Waitangi (Northland) 20.4°C
12 Waitangi 20.4°C
13 Waiiti Bay Northland 20.4°C
14 Doubtless Bay 20.4°C
15 Karikari Peninsula 20.4°C
16 Mangonui 20.4°C
17 Taipa 20.4°C
18 Bay of Plenty 20.3°C
19 Doves Bay Northland 20.3°C
20 Opua Northland 20.3°C
21 Whangarei 20.3°C
22 Whangaroa Northland 20.3°C
23 Burgess Island (Pokohinu) Auckland 20.2°C
24 Kaitaia 20.2°C
25 North Cape (Otou) Northland 20.2°C
Show 25 more ▸
26 Korotiti Bay Auckland 20.2°C
27 Nagle Cove Auckland 20.2°C
28 Goat Island 20.2°C
29 Ruakaka 20.1°C
30 Cathedral Cove 20.1°C
31 Hahei 20.1°C
32 Hot Water Beach 20.1°C
33 Pauanui 20.1°C
34 Tairua 20.1°C
35 Whangamata 20.1°C
36 Marsden Point Northland 20.1°C
37 Portland Wharf Northland 20.1°C
38 Auckland 20.1°C
39 Manukau City 20.1°C
40 Mission Bay 20.1°C
41 Murrays Bay 20.1°C
42 North Shore 20.1°C
43 Orewa 20.1°C
44 Pakuranga 20.1°C
45 Port Jackson Waikato 20.1°C
46 Takapuna 20.1°C
47 Tamaki 20.1°C
48 Tryphena Auckland 20.1°C
49 Bon Accord Harbour - Mansion House Bay Auckland 20.1°C
50 Kotiatia Point Northland 20.1°C

Coldest 10 in New Zealand in April

Same data the other way. Helpful if you want to know which New Zealand coasts to avoid for swimming in April.

# Location April mean
1 Campbell Island/Motu Ihupuku - Perseverance Harbour New Zealand Outlying Islands 9.1°C
2 Auckland Island - Carnley Harbour Auckland 10.5°C
3 Kaka Point 13.1°C
4 Dunedin 13.2°C
5 Portobello 13.2°C
6 Snares Islands/Tini Heke - North East Island New Zealand Outlying Islands 13.4°C
7 Stewart Island 13.6°C
8 Green Island Otago 13.6°C
9 Port Chalmers Otago 13.7°C
10 Spit Wharf Otago 13.7°C

More on this region