Surf Forecasts:
Castlepoint - The Gap surf forecast from 22 Aug 2026:
- Best quality surf: Monday 24 Aug, 12PM (local time) - 10ft (3.0m), 13s period, SSW swell with cross-offshore winds.
- Most powerful swell: Monday 24 Aug, 12PM (local time) - 10ft (3.0m), 13s period, SSW swell with 2,693 kJ wave energy.
- Next surfable swell (1★+): Monday 24 Aug, 6AM (local time) - 5.5ft (1.7m), 10s period with SSW swell.
Best Forecast Surf Conditions for Castlepoint - The Gap this week:
The surf forecast for Castlepoint - The Gap over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 24) at 6AM. The primary swell is predicted to be 1.7m and 10s period with a secondary swell of 1.1m and 10s. Another secondary swell of 0.4m and 17s is also forecast. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Castlepoint - The Gap in the next 16 days are 3.0m 13s and forecast to arrive on Monday (Aug 24) at 12PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 4s period and expected on Monday (Aug 24) at 12AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Mon 24th Aug) | 5.5ft (1.7m) 10s |
| Best Surf | 12PM (Mon 24th Aug) | 10ft (3.0m) 13s |
| Most Powerful | 12PM (Mon 24th Aug) | 10ft (3.0m) 13s |
Table - best surf conditions forecast for Castlepoint - The Gap over the next 16 days.
The Lowdown
G'day, I'm Rusty.
Alright mate, this forecast starts off a bit slow this Saturday, but the real juice is further out. We’ve got a small 4ft S swell with an 11-second period coming into Castlepoint - The Gap on Saturday morning. The wind is a clean offshore from the WNW at 15 mph, so it’s glassy, but the wave energy is low (313) and the call is for poor surf. Saturday afternoon slips to 3ft, still nothing to write home about. Sunday is a total bust with a near gale blowing at 31 mph and barely 2ft of swell. Not worth paddling out.
The big news is Monday, 24 August. Monday morning delivers a proper 8ft swell from the SSW with a long 14-second period – that’s groundswell, and the energy is massive (1995). Wind is a gentle offshore, clean as a whistle. Expect very good surf. By afternoon it gets even bigger at 8ft from the same direction, and that’s for experienced surfers only. The wind stays offshore, moderate breeze. For a sheltered spot like The Gap, this is the session to circle.
Looking into the second week, Wednesday, 2 September morning is another standout. A 5ft SSW swell with a very long 19-second period, giving you crazy power (1942) and shape. The wind is a light offshore from the WSW, making it clean and lined up. This is a classic, glassy morning for the experienced crew – that long period will hold its shape nicely at The Gap.
Water temperature is about 53°F, which is roughly 1°F cooler than average for this time of year. Not a major anomaly, just a little chilly, so a good wetsuit is your friend.
The rest of the week is hit or miss. Tuesday (25 Aug) has fresh offshore wind and 4ft swell – surfable but not great. Thursday (27 Aug) has clean 6ft S swell with a 15-second period and light wind, but it’s not the size of Monday. After that, the swell drops off and winds go cross or cross-on, leaving poor conditions through the end of the outlook.
Bottom line: Saturday and Sunday are poor. Monday, 24 August is your clear best bet – big, clean, and powerful. Wednesday, 2 September is a promising long-range option. The rest is small and unremarkable. Get on Monday.
Rusty.
Short Range ForecastSome drizzle, heaviest during Sun morning. Very mild (max 15°C on Sat afternoon, min 9°C on Sun night). Winds decreasing (strong winds from the NW on Sun morning, light winds from the NW by Mon morning). | Days 4-6 Weather SummaryMostly dry. Very mild (max 17°C on Wed afternoon, min 12°C on Tue night). Winds decreasing (strong winds from the WNW on Tue afternoon, calm by Wed afternoon). | ||||||||||||||||||||
Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | S 11 | S 11 | S 11 | S 10 | ESE 13 | SSW 9 | SSW 14 | SSW 14 | SSW 13 | SSW 12 | S 11 | SSW 15 | SSW 16 | SSW 16 | SSW 16 | S 15 | S 14 | S 16 | S 12 | S 12 | S 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 300 | 233 | 141 | 50 | 34 | 52 | 1956 | 2688 | 995 | 478 | 291 | 225 | 348 | 348 | 1081 | 1489 | 1145 | 728 | 692 | 584 | 393 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | off | off | off | off | off | off | off | cross-off | cross-off | off | off | cross-off | cross-off | cross-off | cross-off |
High Tide | 12:37PM1.28m | 00:54AM1.18m | 1:20PM1.26m | 1:39AM1.14m | 2:01PM1.24m | 2:24AM1.10m | 2:42PM1.22m | 3:09AM1.08m | 3:24PM1.20m | 3:54AM1.07m | 4:09PM1.18m | 4:41AM1.07m | 4:57PM1.18m | ||||||||
Low Tide | 6:59PM0.20m | 7:03AM0.24m | 7:40PM0.21m | 7:42AM0.24m | 8:20PM0.21m | 8:22AM0.24m | 9:01PM0.22m | 9:06AM0.23m | 9:45PM0.23m | 9:53AM0.22m | 10:35PM0.24m | 10:43AM0.21m | 11:30PM0.24m | ||||||||
 | |  |  | |  | | | | |  | | | |  |  | | | | | | |
 | 6:54 | — | — | 6:54 | — | — | 6:52 | — | — | 6:50 | — | — | 6:48 | — | — | 6:48 | — | — | 6:46 | — | — |
 | — | 5:40 | — | — | 5:42 | — | — | 5:42 | — | — | 5:43 | — | — | 5:44 | — | — | 5:45 | — | — | 5:45 | — |
mm | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 15 | 14 | 15 | 13 | 11 | 14 | 14 | 13 | 15 | 15 | 13 | 16 | 17 | 14 | 16 | 17 | 14 | 16 | 17 | 15 |
Feels °C | 8 | 10 | 7 | 5 | 3 | 2 | 11 | 8 | 6 | 8 | 8 | 8 | 13 | 15 | 13 | 14 | 15 | 10 | 12 | 14 | 9 |
Swell 1 Height (m) Direction Period (s) | S 11 | S 11 | S 11 | S 10 | NE 6 | SSW 9 | SSW 14 | SSW 14 | SSW 13 | SSW 12 | S 11 | S 10 | SSW 16 | SSW 16 | SSW 16 | S 15 | S 14 | S 16 | S 12 | S 12 | S 12 |
| kJ | 300 | 233 | 141 | 50 | 15 | 52 | 1956 | 2688 | 995 | 478 | 291 | 122 | 348 | 348 | 1081 | 1489 | 1145 | 728 | 692 | 584 | 393 |
Swell 2 Height (m) Direction Period (s) | ESE 9 | E 14 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | ESE 14 | ESE 13 | SSW 16 | SSW 15 | S 9 | S 9 | SE 4 | ESE 12 | ESE 11 | S 11 | SE 15 | SE 15 | ESE 14 |
| kJ | 8 | 16 | 34 | 33 | 34 | 32 | 32 | 34 | 36 | 17 | 142 | 225 | 37 | 24 | 14 | 26 | 12 | 300 | 9 | 9 | 18 |
Swell 3 Height (m) Direction Period (s) | SE 11 | SE 12 | — | NE 5 | SSE 9 | NE 7 | NNE 8 | — | — | NE 5 | ESE 13 | ESE 12 | ESE 13 | ESE 13 | ESE 12 | SE 13 | — | E 16 | W 8 | NE 10 | NE 9 |
| kJ | 5 | 5 | — | 1 | 9 | 7 | 7 | — | — | 1 | 17 | 15 | 17 | 17 | 14 | 7 | — | 5 | 1 | 4 | 3 |
Wind waves Height (m) Direction Period (s) | NW 3 | WNW 3 | NW 3 | NW 3 | W 4 | W 4 | — | — | NNW 4 | WNW 3 | W 3 | WNW 3 | W 3 | SE 3 | ENE 4 | — | NW 3 | WNW 3 | NW 3 | NW 3 | NNW 3 |
| kJ | 2 | 3 | 3 | 6 | 27 | 45 | — | — | 31 | 3 | 8 | 8 | 1 | 2 | 8 | — | 5 | 3 | 2 | 2 | 3 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 16 | 0 | 55 | 192 | 143 | 192 | 0 | 0 | 1 | 135 | 135 | 88 | 0 | 0 | 0 | 0 | 0 | 28 | 28 | 25 | 28 |
Best forecast wave conditions in The Wairarapa | |||||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Castlepoint - The Gap 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 - The Gap Surf forecast
The above surf forecast table for Castlepoint - The Gap provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Castlepoint - The Gap can be found by selecting the local surf guide option on the grey menu. Our Castlepoint - The Gap 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 - The Gap) 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 - The Gap 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 - The Gap, camping, hotels and holiday cottages in The Wairarapa, consider staying in Masterton which is 48 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 80 km (50 miles) away and Levin, 86 km (53 miles) away.
Nearest