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Surf Forecasts:
Okiwi - Whangapoua Estuary surfForecast / Great Barrier Island / New Zealand
48hr Weather and Surf, issued 6 pm Thursday 18 Dec 2025 NZDTForecast update in hr min s Forecast update imminent
Okiwi - Whangapoua Estuary surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Okiwi - Whangapoua Estuary sea temperature is
20.3° C
(Which is 1.6°C warmer than normal for this time of year)How big are the waves at Okiwi - Whangapoua Estuary today?
The current surf forecast for Okiwi - Whangapoua Estuary at 1AM is: 0.7m 8s primary swell from a East-northeast direction and 0.4m 10s secondary swell from a North-northwest direction (forecast issued at 06:00pm December 18). An open ocean swell of 0.7m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (NZDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Dec) | 1.5ft (0.4m) | 16s |
| Afternoon (19 Dec) | 1.5ft (0.5m) | 15s |
| Evening (19 Dec) | 1.5ft (0.5m) | 15s |
Table - waves today at Okiwi - Whangapoua Estuary. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | |||||||||||||||||||||
| 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 12 | 8 | 8 | 8 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 67 | 63 | 62 | 60 | 82 | 82 | 81 | 79 | 112 | 109 | 109 | 110 | 159 | 155 | 146 | 142 | 142 | 142 | 194 | 191 | 132 | 125 | 123 | 123 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | off | off | off | off | off | off | off |
High Tide / height (m) | 7:24AM 1.83 | 7:32PM 1.76 | 8:07AM 1.87 | 8:15PM 1.78 | 8:48AM 1.91 | |||||||||||||||||||
Low Tide / height (m) | 1:03AM 0.36 | 1:34PM 0.50 | 1:47AM 0.33 | 2:18PM 0.47 | 2:30AM 0.30 | |||||||||||||||||||
Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 5:56 | - | - | - | - | - | - | - | 5:56 | - | - | - | - | - | - | - | 5:56 | - | - |
| Sunset | - | 8:31 | - | - | - | - | - | - | - | 8:32 | - | - | - | - | - | - | - | 8:32 | - | - | - | - | - | - |
 | |  | |  |  |  | | | |  | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 19 | 19 | 18 | 17 | 17 | 17 | 18 | 19 | 20 | 20 | 19 | 19 | 19 | 18 | 18 | 19 | 20 | 19 | 18 | 17 | 17 | 17 | 17 | 18 |
| Feels °C (?) | 15 | 13 | 12 | 12 | 13 | 13 | 14 | 15 | 15 | 14 | 14 | 14 | 13 | 12 | 13 | 15 | 15 | 13 | 11 | 10 | 11 | 12 | 13 | 16 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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