# Bay of Islands water temperature

Sea temperature at Bay of Islands is 15.7 °C (60.3 °F).

- Location: Bay of Islands, New Zealand
- Timezone: Pacific/Auckland
- Source: Open-Meteo marine forecast (snapshot)
- Generated at: 2026-09-27T01:52:43.453133+12:00
- Forecast page: https://snorkelforecast.com/new-zealand/bay-of-islands/
- HTML sea temperature: https://snorkelforecast.com/new-zealand/bay-of-islands/sea-temperature/
- Temperature is not a safety rating or snorkel score.
- Guidance: Cold water
- What to wear: Use a full 3-5 mm wetsuit and keep the session within your cold-water experience.

## Monthly baseline

- January: 20.9 °C (69.6 °F)
- February: 21.8 °C (71.2 °F)
- March: 21.2 °C (70.2 °F)
- April: 20.0 °C (68.0 °F)
- May: 18.7 °C (65.7 °F)
- June: 16.9 °C (62.4 °F)
- July: 15.8 °C (60.4 °F)
- August: 15.3 °C (59.5 °F)
- September: 15.6 °C (60.1 °F)
- October: 15.8 °C (60.4 °F)
- November: 17.7 °C (63.9 °F)
- December: 19.3 °C (66.7 °F)