1. Ohope Beach (Whakatane)
11km of white sand. Swimmable along the whole stretch. Patrolled in summer.
2. Mount Maunganui (Tauranga)
The main beach. Sheltered, warm, patrolled. The best summer swimming beach in the North Island.
3. Kaiteriteri (Nelson Tasman)
Golden sand, sheltered bay. Warm water by NZ standards. The Abel Tasman gateway beach.
4. Oriental Bay (Wellington)
The city beach. The artificial lagoon makes it swimmable even when the harbour's rough. Patrolled.
5. New Chums Beach (Coromandel)
White sand, clear water, no road access. The 30-minute walk from Whangapoua keeps the crowds down.
6. Marahau (Nelson Tasman)
The Abel Tasman start point. Sheltered, warm, shallow. Good for families.
7. Takapuna Beach (Auckland)
Sheltered by Rangitoto. The best city swimming beach in Auckland.
8. Caroline Bay (Timaru)
The surprise of the South Island east coast. Sheltered, warm, and genuinely swimmable.
9. Cable Bay (Nelson)
Sheltered, warm, and the view across Tasman Bay. The cafe at the end does good coffee.
10. Matai Bay (Northland)
Shell-shaped bay, white sand, clear water. One of the best swimming beaches in the North.
FAQ
Which of these beaches has lifeguard patrols and which doesn't?
Ohope, Mount Maunganui, Oriental Bay and Takapuna all get Surf Life Saving patrols through the summer season, roughly Labour Weekend in late October to Easter. New Chums Beach has no road access and no patrol at all, so treat it as a swim-at-your-own-risk spot regardless of how calm it looks on the day.
Is New Chums Beach a good pick with young kids?
Only if they can manage a 30-minute walk in from Whangapoua with no shade and no facilities at the other end, and even then there's no lifeguard if something goes wrong. Marahau or Kaiteriteri are the better bet for families who want warm, shallow water within a short walk of the car.
Is Caroline Bay in Timaru genuinely as warm as the North Island beaches on this list?
No, and treating it as a like-for-like swap for Ohope or Mount Maunganui oversells it. It's sheltered enough to be genuinely swimmable, which is a real surprise for the South Island's east coast, but the water stays noticeably cooler than the Bay of Plenty beaches on this list, so it's a strong regional pick rather than one worth crossing the country for.
What's the best pick if Wellington harbour is too rough to swim in?
Oriental Bay is built for exactly that: the artificial lagoon stays swimmable even when the open harbour is chopped up by a southerly, and it's patrolled in summer. It's a city beach though, not a wilderness one, so don't expect the seclusion of somewhere like New Chums.