Surf Forecasts:
Castlepoint - The Gap surf forecast from 19 Sep 2026:
- Best quality surf: Sunday 20 Sep, 9PM (local time) - 18ft (5.5m), 12s period, SSW swell with cross-offshore winds.
- Most powerful swell: Sunday 20 Sep, 9PM (local time) - 18ft (5.5m), 12s period, SSW swell with 8,475 kJ wave energy.
- Next surfable swell (1★+): Sunday 20 Sep, 9PM (local time) - 18ft (5.5m), 12s 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 Sunday (Sep 20) at 9PM. The primary swell is predicted to be 5.5m and 12s period with a secondary swell of 4.0m and 12s. Another secondary swell of 0.2m and 10s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Castlepoint - The Gap in the next 16 days are 5.5m 12s and forecast to arrive on Sunday (Sep 20) at 9PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 12s period and expected on Sunday (Sep 20) at 6AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Sun 20th Sep) | 18ft (5.5m) 12s |
| Best Surf | 9PM (Sun 20th Sep) | 18ft (5.5m) 12s |
| Most Powerful | 9PM (Sun 20th Sep) | 18ft (5.5m) 12s |
Table - best surf conditions forecast for Castlepoint - The Gap over the next 16 days.
Short Range ForecastLight rain (total 6mm), mostly falling on Sat night. Very mild (max 17°C on Sat afternoon, min 5°C on Sun night). Winds decreasing (strong winds from the SSW on Sat night, light winds from the WNW by Sun night). | Days 4-6 Weather SummaryModerate rain (total 10mm), heaviest on Tue morning. Very mild (max 13°C on Tue morning, min 5°C on Tue night). Winds decreasing (fresh winds from the SSW on Tue morning, light winds from the WSW by Tue night). | ||||||||||||||||||||
Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Friday 25 | |||||||||||||||
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) | SSW 16 | SSW 15 | SSW 13 | SSW 8 | SSW 10 | S 14 | S 11 | S 10 | S 13 | S 11 | S 7 | S 8 | S 7 | SSW 15 | SSW 9 | SSW 10 | S 10 | S 9 | SSW 8 | S 8 | S 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 893 | 543 | 246 | 630 | 2020 | 5607 | 1371 | 696 | 633 | 257 | 328 | 289 | 345 | 348 | 828 | 1495 | 715 | 440 | 432 | 172 | 714 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | off | cross-off | cross-off | cross-off | off | off | off | cross-off | cross | off | cross | cross | cross-off | cross-off | cross | off | cross-off | cross-on | off |
High Tide | 11:15AM1.27m | 11:35PM1.19m | 11:58AM1.24m | 00:15AM1.15m | 12:40PM1.22m | 00:57AM1.12m | 1:21PM1.21m | 1:41AM1.10m | 2:02PM1.20m | 2:27AM1.09m | 2:47PM1.19m | 3:14AM1.10m | 3:34PM1.20m | ||||||||
Low Tide | 5:43PM0.18m | 5:46AM0.23m | 6:22PM0.17m | 6:24AM0.22m | 7:01PM0.16m | 7:01AM0.21m | 7:38PM0.17m | 7:41AM0.20m | 8:17PM0.18m | 8:24AM0.20m | 9:00PM0.20m | 9:13AM0.20m | 9:51PM0.23m | ||||||||
 | |  |  |  |  | | | |  | | | | | | | | | | |  | |
 | 6:09 | — | — | 6:07 | — | — | 6:07 | — | — | 6:05 | — | — | 6:03 | — | — | 6:01 | — | — | 6:00 | — | — |
 | — | 6:07 | — | — | 6:08 | — | — | 6:09 | — | — | 6:10 | — | — | 6:12 | — | — | 6:13 | — | — | 6:14 | — |
mm | — | — | 3 | 3 | — | — | — | — | — | 3 | 4 | — | 2 | 1 | — | — | — | — | — | — | — |
Temp °C | 16 | 17 | 14 | 11 | 11 | 9 | 14 | 15 | 13 | 13 | 8 | 6 | 9 | 9 | 8 | 11 | 11 | 9 | 13 | 13 | 11 |
Feels °C | 11 | 12 | 4 | 3 | 1 | 3 | 8 | 9 | 5 | 8 | 2 | 3 | 2 | 1 | 3 | 5 | 5 | 5 | 9 | 9 | 7 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 15 | SSW 13 | ESE 11 | SE 11 | S 14 | S 11 | S 10 | S 13 | S 11 | SSW 17 | S 8 | SSW 16 | SSW 15 | S 9 | S 10 | ESE 10 | S 9 | S 8 | S 8 | S 16 |
| kJ | 893 | 543 | 246 | 47 | 30 | 5607 | 1371 | 696 | 633 | 257 | 57 | 289 | 140 | 326 | 487 | 1024 | 10 | 440 | 223 | 172 | 714 |
Swell 2 Height (m) Direction Period (s) | SE 12 | SE 11 | ESE 11 | SW 12 | SSW 16 | ENE 10 | ENE 10 | ESE 10 | SE 13 | SE 13 | SE 12 | SSW 17 | SE 10 | SE 8 | ESE 11 | ESE 11 | E 16 | ESE 10 | ESE 13 | ESE 12 | ESE 13 |
| kJ | 195 | 126 | 82 | 38 | 53 | 10 | 9 | 10 | 27 | 26 | 23 | 92 | 28 | 18 | 11 | 11 | 5 | 22 | 98 | 117 | 201 |
Swell 3 Height (m) Direction Period (s) | NE 6 | NE 7 | NE 8 | NE 8 | ENE 8 | SE 10 | SE 10 | ENE 10 | ENE 10 | E 10 | E 10 | SE 12 | — | ESE 11 | — | SE 10 | E 16 | ESE 14 | SSW 15 | SSW 14 | SE 11 |
| kJ | 13 | 8 | 9 | 9 | 7 | 17 | 16 | 9 | 10 | 7 | 7 | 36 | — | 12 | — | 4 | 5 | 20 | 43 | 69 | 20 |
Wind waves Height (m) Direction Period (s) | NNE 6 | WNW 2 | WNW 4 | SSW 8 | SSW 10 | — | — | NW 3 | NW 3 | WNW 4 | S 7 | — | S 7 | S 7 | SSW 9 | SSW 10 | S 10 | — | SSW 8 | — | — |
| kJ | 49 | 1 | 13 | 630 | 2020 | — | — | 2 | 3 | 10 | 328 | — | 345 | 348 | 828 | 1495 | 715 | — | 432 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 25 | 16 | 160 | 190 | 335 | 0 | 0 | 16 | 16 | 1 | 200 | 0 | 102 | 102 | 0 | 1 | 122 | 0 | 0 | 37 | 0 |
Best forecast wave conditions in The Wairarapa | |||||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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.
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