Best Time to Ride · Lake Wānaka – Roys Bay vs Christchurch – Sumner
Lake Wānaka – Roys Bay vs Christchurch – Sumner: which is better for SUP?
Lake Wānaka – Roys Bay or Christchurch – Sumner? Month by month: windy days, waves and water temperature side by side, from years of weather data.
Find the best time to goTap a spot to see when to go: wind, waves, water temperature, sun and rain in every month, from years of weather statistics.
Updated October 2026 · weather data 2022–2026
In short
- Best months at Lake Wānaka – Roys Bay: January–March, December.
- Best months at Christchurch – Sumner: March, June–July.
- 316 km apart.
Lake Wānaka – Roys BayOtago, New ZealandWave height per month (m, average daily max)
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Water temperature per month (°C)
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Best time to go →
Christchurch – SumnerCanterbury (Christchurch), New ZealandWave height per month (m, average daily max)
JFMAMJJASOND1.31.31.51.41.41.61.61.41.31.41.31.3
Water temperature per month (°C)
JFMAMJJASOND19191816131110911131618
Best time to go →Wave height: average daily maximum. Water: average sea surface temperature.