Cathedral Cove sea temperature today: 15°C – beach water temperature, Cathedral Cove, New Zealand
New Zealand · Coromandel
Cathedral Cove
Sea
15.1°C59.2°F
Air
UV
Get a wetsuit
⁦13–18°C⁩

Last updated ·

Today, September 13, the sea temperature at Cathedral Cove is 15.1 °C (59 °F). That is 0.5 °C warmer than the usual 14.6 °C in September. Comfortable for swimming from January to December.

Climate · monthly averages

Sea temperature by month

5-year averages (2021–2025). Min/Max are typical daily lows and highs, not record extremes.

Warmest in February (21.0°C). Coldest in August (14.3°C). Comfortable for swimming from January to December.

5-year averages (2021–2025). Min/Max are typical daily lows and highs, not record extremes.
MonthSea · MinSea · AvgSea · MaxAir · MinAir · AvgAir · Max
January19.9°C20.4°C21.1°C18.8°C19.5°C20.3°C
February20.5°C21.0°C21.5°C19.2°C19.8°C20.5°C
March19.7°C20.5°C21.2°C18.0°C18.7°C19.6°C
April18.7°C19.4°C20.1°C17.4°C17.8°C18.4°C
May17.3°C17.9°C18.4°C15.4°C15.8°C16.3°C
June15.9°C16.2°C16.5°C14.1°C14.4°C14.9°C
July14.8°C15.0°C15.3°C13.0°C13.3°C13.9°C
August13.9°C14.3°C14.7°C12.2°C12.6°C13.2°C
September14.4°C14.6°C14.9°C13.1°C13.6°C14.3°C
October15.2°C15.3°C15.5°C14.1°C14.6°C15.3°C
November16.6°C17.1°C17.6°C15.9°C16.6°C17.4°C
December18.4°C18.9°C19.4°C17.8°C18.5°C19.4°C

About Cathedral Cove

On the Coromandel Peninsula's eastern flank, Cathedral Cove anchors the 840-hectare Te Whanganui-A-Hei Marine Reserve, declared in 1992 around a white-limestone arch linking two small sandy bays – the same backdrop that opens The Chronicles of Narnia: Prince Caspian (2008). A 1.5 km clifftop walk from Hahei Beach reaches the arch; 10 km south, Hot Water Beach lets visitors dig their own thermal pool in the sand at low tide. Sea temperatures hold 21–23 °C70–73 °F from January through March, the austral-summer peak.

Frequently asked questions

Today, September 13, the sea at Cathedral Cove is 15.1 °C (59 °F)59 °F (15.1 °C) – cold, most people reach for a wetsuit. The usual September average is 14.6 °C58 °F.

No single number works for everyone, so the scale on this page is only a guide to how the water feels: below 13 °C55 °F icy, 13–18 °C55–64 °F cold, 18–23 °C64–73 °F refreshing, 23–28 °C73–82 °F pleasantly warm and above 28 °C82 °F like a bath. Right now the sea at Cathedral Cove is 15.1 °C59 °F.

In November the sea at Cathedral Cove (Coromandel, New Zealand) averages 17.1 °C63 °F – cold, most people reach for a wetsuit. It keeps warming until February, when it peaks at 21 °C70 °F.

In April the sea at Cathedral Cove (Coromandel, New Zealand) still averages 19.4 °C67 °F – refreshing, good for a short swim. It peaks in February at 21 °C70 °F and cools slowly from there.