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The Island (Island Bay) surfForecast / Wellington / New Zealand
12 Day Weather and Surf, issued 6 pm Thursday 18 Dec 2025 NZDTForecast update in hr min s Forecast update imminent
The Island (Island Bay) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's The Island (Island Bay) sea temperature is
16.1° C
(Which is slightly warmer than usual)Best Forecast Surf Conditions for The Island (Island Bay) this week:
The surf forecast for The Island (Island Bay) over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Dec 19) at 10AM. The primary swell is predicted to be 0.6m and 7s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at The Island (Island Bay) in the next 12 days are 2.2m 8s and forecast to arrive on Saturday (Dec 20) at 7AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 7s period and expected on Thursday (Dec 25) at 7PM.
| Wave Type | Time (NZDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Fri 19th Dec) | 2ft (0.6m) 7s |
| Best Surf | 4PM (Sat 20th Dec) | 5ft (1.5m) 8s |
| Most Powerful | 7AM (Sat 20th Dec) | 7ft (2.2m) 8s |
Table - best surf conditions forecast for The Island (Island Bay) over the next 12 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Light rain (total 4mm), mostly falling on Fri night. Very mild (max 17°C on Fri morning, min 11°C on Fri night). Winds decreasing (strong winds from the NW on Fri afternoon, calm by Sat night). | Days 3-6 Weather Summary Light rain (total 6mm), mostly falling on Mon night. Very mild (max 19°C on Tue morning, min 13°C on Sun night). Winds increasing (calm on Sun afternoon, strong winds from the NNW by Wed morning). | ||||||||||||||||||||||
Thu 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | |||||||||||||||||
| PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |||
Rating (10 max) | |||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||||
| Period(s) (?) | 8 | 7 | 7 | 10 | 6 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 9 | 11 | 11 | 11 | 10 | 9 | 9 | 9 | 8 | ||
Wave (?)Graph  | |||||||||||||||||||||||
 kJ (?) | 253 | 68 | 33 | 16 | 192 | 560 | 309 | 253 | 196 | 205 | 154 | 87 | 177 | 510 | 459 | 382 | 325 | 198 | 130 | 55 | 35 | ||
Wind (km/h) | |||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | off | off | cross- on | cross- on | glass | on | cross- off | cross | cross- off | off | cross- off | off | off | off | cross- off | cross- off | off | off | off | ||
High Tide / height (m) | 4:44PM 1.51 | 5:02AM 1.60 | 5:30PM 1.49 | 5:45AM 1.59 | 6:15PM 1.47 | 6:28AM 1.58 | 7:02PM 1.46 | 7:12AM 1.56 | 7:48PM 1.45 | 7:57AM 1.55 | 8:34PM 1.45 | 8:44AM 1.54 | 9:19PM 1.46 | 9:32AM 1.54 | |||||||||
Low Tide / height (m) | 10:47PM 0.84 | 11:31AM 0.83 | 11:34PM 0.84 | 12:19PM 0.82 | 12:19AM 0.82 | 1:08PM 0.80 | 1:03AM 0.79 | 1:56PM 0.76 | 1:46AM 0.76 | 2:42PM 0.72 | 2:30AM 0.72 | 3:26PM 0.68 | 3:15AM 0.69 | ||||||||||
Thu 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | |||||||||||||||||
| Sunrise | - | - | 5:41 | - | - | 5:43 | - | - | 5:43 | - | - | 5:43 | - | - | 5:43 | - | - | 5:43 | - | - | 5:45 | ||
| Sunset | 8:51 | - | - | 8:52 | - | - | 8:52 | - | - | 8:52 | - | - | 8:53 | - | - | 8:53 | - | - | 8:54 | - | - | ||
 |  | |  |  |  |  |  | | | | |  | | | | | | |  | | |||
Rain (mm) | - | - | - | - | 3 | - | 1 | - | - | - | - | - | 1 | 5 | - | - | - | - | - | - | - | ||
| Temp. °C | 16 | 16 | 17 | 17 | 16 | 13 | 13 | 11 | 14 | 14 | 14 | 16 | 16 | 18 | 19 | 19 | 17 | 18 | 18 | 17 | 18 | ||
| Feels °C (?) | 11 | 11 | 14 | 10 | 12 | 11 | 11 | 7 | 12 | 12 | 12 | 10 | 9 | 12 | 13 | 15 | 14 | 10 | 10 | 9 | 10 | ||
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Information about the The Island (Island Bay) Surf forecast
The above surf forecast table for The Island (Island Bay) provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at The Island (Island Bay) can be found by selecting the local surf guide option on the grey menu. Our The Island (Island Bay) surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (The Island (Island Bay)) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for The Island (Island Bay) may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
The Island (Island Bay) is 8 km (5 miles) from the city of Wellington. If you plan a holiday in Wellington, look for hotels and other accommodation in Wellington. Wellington has rooms for a wide range of budgets as well as car hire and transport links.
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