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Castlepoint - Slippery surfForecast / Wairarapa / New Zealand
12 Day Weather and Surf, issued 5 pm Thursday 21 Aug 2025 NZST
Best Forecast Surf Conditions for Castlepoint - Slippery this week:
The surf forecast for Castlepoint - Slippery over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 22) at 6AM. The primary swell is predicted to be 2.4m and 14s period with a secondary swell of 1.9m and 14s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Castlepoint - Slippery in the next 12 days are 2.5m 14s and forecast to arrive on Friday (Aug 22) at 3AM. Winds are predicted to be cross-offshore at the time the swell arrives.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Fri 22nd Aug) | 8ft (2.4m) 14s |
| Best Surf | 6AM (Fri 22nd Aug) | 8ft (2.4m) 14s |
| Most Powerful | 3AM (Fri 22nd Aug) | 8ft (2.5m) 14s |
Table - best surf conditions forecast for Castlepoint - Slippery over the next 12 days.
Short Range Forecast Some drizzle, heaviest during Fri night. Very mild (max 11°C on Sun morning, min 8°C on Thu night). Wind will be generally light. | Days 3-6 Weather Summary Mostly dry. Very mild (max 15°C on Wed morning, min 9°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||
Thu 21 | Friday 22 | Saturday 23 | Sunday 24 | Monday 25 | Tuesday 26 | Wednesday 27 | |||||||||||||||||
| 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) (?) | 16 | 14 | 14 | 12 | 16 | 14 | 10 | 9 | 11 | 11 | 10 | 9 | 8 | 15 | 6 | 6 | 6 | 6 | 11 | 7 | 8 | ||
Wave (?)Graph  | |||||||||||||||||||||||
| Energy (?) | 1347 | 1649 | 3250 | 837 | 602 | 747 | 441 | 183 | 165 | 177 | 145 | 85 | 70 | 55 | 58 | 28 | 46 | 65 | 59 | 450 | 657 | ||
Wind (km/h) | |||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross | cross | glass | cross- off | cross- on | cross- off | cross- off | cross | cross- off | cross- off | cross- on | cross- off | glass | cross- on | cross- off | cross- off | cross | cross- off | cross- off | ||
High Tide / height (m) | 3:11PM 1.43 | 3:47AM 1.23 | 4:05PM 1.39 | 4:40AM 1.20 | 4:59PM 1.33 | 5:33AM 1.18 | 5:52PM 1.28 | 6:26AM 1.18 | 6:45PM 1.24 | 7:17AM 1.19 | 7:37PM 1.21 | 8:06AM 1.20 | 8:27PM 1.19 | 8:52AM 1.22 | |||||||||
Low Tide / height (m) | 9:29PM 0.05 | 9:50AM 0.01 | 10:25PM 0.09 | 10:46AM 0.03 | 11:23PM 0.12 | 11:40AM 0.05 | 12:19AM 0.15 | 12:33PM 0.08 | 1:10AM 0.18 | 1:26PM 0.13 | 1:59AM 0.20 | 2:18PM 0.17 | 2:45AM 0.22 | ||||||||||
Thu 21 | Friday 22 | Saturday 23 | Sunday 24 | Monday 25 | Tuesday 26 | Wednesday 27 | |||||||||||||||||
| Sunrise | - | - | 6:54 | - | - | 6:54 | - | - | 6:52 | - | - | 6:50 | - | - | 6:48 | - | - | 6:48 | - | - | 6:46 | ||
| Sunset | 5:39 | - | - | 5:40 | - | - | 5:42 | - | - | 5:43 | - | - | 5:43 | - | - | 5:44 | - | - | 5:45 | - | - | ||
 |  | |  |  |  | |  | | | | | | | | | | | |  | | |||
Rain (mm) | - | - | - | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | ||
| Temp. °C | 9 | 9 | 10 | 10 | 9 | 10 | 10 | 9 | 11 | 12 | 11 | 13 | 13 | 11 | 13 | 13 | 10 | 15 | 14 | 11 | 14 | ||
| Feels °C (?) | 2 | 4 | 5 | 5 | 6 | 6 | 5 | 6 | 6 | 8 | 8 | 9 | 8 | 8 | 10 | 9 | 7 | 10 | 7 | 8 | 9 | ||
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Recent Eyeball Surf Reports for Wairarapa
The wind is still cross-off at Castlepoint - Slippery (moderate winds from the SW at CastlepointAws 4 km from Castlepoint - Slippery). 2.6m 8s swell from the S with a 1.2m 15s groundswell from the SSW. 2 swells combining so expect closeout sets.
1 h 23 min ago
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Castlepoint - Slippery surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Castlepoint - Slippery Surf forecast
The above surf forecast table for Castlepoint - Slippery provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Castlepoint - Slippery can be found by selecting the local surf guide option on the grey menu. Our Castlepoint - Slippery 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 (Castlepoint - Slippery) 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 Castlepoint - Slippery 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.
Are you planning a holiday in The Wairarapa? If you are looking for accommodation near Castlepoint - Slippery, camping, hotels and holiday cottages in The Wairarapa, consider staying in Masterton which is 49 km (30 miles) away. Other places in and around The Wairarapa where you can find information about places to rent, and car hire include Palmerston North which is 78 km (48 miles) away and Levin, 85 km (53 miles) away.
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