Surf Forecasts:
Castlepoint - The Gap surf forecast from 16 Sep 2026:
- Best quality surf: Monday 21 Sep, 12AM (local time) - 15ft (4.5m), 12s period, S swell with cross-offshore winds.
- Most powerful swell: Monday 21 Sep, 6AM (local time) - 16ft (5.0m), 13s period, SSW swell with 7,487 kJ wave energy.
- Next surfable swell (1★+): Thursday 17 Sep, 12PM (local time) - 2ft (0.6m), 10s period with SE 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 Thursday (Sep 17) at 12PM. The primary swell is predicted to be 0.6m and 10s period with a secondary swell of 0.3m and 14s. 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 5.0m 13s and forecast to arrive on Monday (Sep 21) at 6AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Tuesday (Sep 22) at 9AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Thu 17th Sep) | 2ft (0.6m) 10s |
| Best Surf | 12AM (Mon 21st Sep) | 15ft (4.5m) 12s |
| Most Powerful | 6AM (Mon 21st Sep) | 16ft (5.0m) 13s |
Table - best surf conditions forecast for Castlepoint - The Gap over the next 16 days.
Short Range ForecastLight rain (total 6mm), mostly falling on Fri night. Very mild (max 16°C on Thu afternoon, min 10°C on Thu night). Winds increasing (calm on Sat morning, strong winds from the WNW by Sat night). | Days 4-6 Weather SummaryModerate rain (total 11mm), heaviest on Tue morning. Very mild (max 14°C on Mon afternoon, min 6°C on Tue night). Winds decreasing (fresh winds from the SW on Sun afternoon, calm by Mon morning). | ||||||||||||||||||||
Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | |||||||||||||||
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) | SE 10 | ESE 10 | ESE 14 | ESE 12 | SE 12 | SE 12 | SSW 16 | SSW 14 | SSW 13 | SSW 6 | SSW 9 | S 12 | SSW 12 | S 11 | S 9 | S 12 | S 7 | S 8 | S 7 | SSW 18 | SSW 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 82 | 63 | 76 | 255 | 259 | 195 | 513 | 449 | 242 | 247 | 1323 | 6203 | 5523 | 1174 | 416 | 304 | 466 | 386 | 247 | 454 | 882 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross | cross | cross-on | cross-on | glassy | off | off | cross-off | cross | cross-off | off | off | off | off | cross | off | cross | cross | cross-off |
High Tide | 9:46AM1.32m | 10:12PM1.25m | 10:31AM1.30m | 10:54PM1.23m | 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 | |||||||
Low Tide | 4:14PM0.18m | 4:23AM0.23m | 5:00PM0.19m | 5:06AM0.23m | 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 | ||||||||
 |  |  |  |  |  | | | |  | |  | | | | | | | | | | |
 | 6:13 | — | — | 6:11 | — | — | 6:09 | — | — | 6:07 | — | — | 6:07 | — | — | 6:05 | — | — | 6:03 | — | — |
 | — | 6:06 | — | — | 6:07 | — | — | 6:07 | — | — | 6:08 | — | — | 6:09 | — | — | 6:10 | — | — | 6:12 | — |
mm | — | — | — | — | 1 | 5 | — | — | — | 2 | — | — | — | — | — | 5 | 3 | 1 | 2 | — | — |
Temp °C | 15 | 16 | 12 | 14 | 15 | 12 | 14 | 16 | 14 | 12 | 13 | 9 | 13 | 14 | 14 | 14 | 9 | 7 | 9 | 9 | 8 |
Feels °C | 12 | 14 | 9 | 10 | 12 | 8 | 11 | 11 | 6 | 4 | 6 | 0 | 11 | 11 | 8 | 10 | 3 | 4 | -1 | -1 | 1 |
Swell 1 Height (m) Direction Period (s) | SE 10 | ESE 10 | SE 9 | ESE 12 | SE 12 | SE 12 | SSW 16 | SSW 14 | SSW 13 | SE 11 | ESE 11 | E 11 | S 12 | S 11 | S 9 | S 12 | SE 12 | S 8 | SSW 16 | SSW 18 | S 9 |
| kJ | 82 | 63 | 40 | 255 | 259 | 195 | 513 | 449 | 242 | 58 | 45 | 36 | 2738 | 1174 | 416 | 304 | 23 | 386 | 147 | 454 | 486 |
Swell 2 Height (m) Direction Period (s) | SSW 15 | SSW 14 | ESE 14 | SSW 6 | S 6 | SSW 15 | SE 6 | ESE 7 | ESE 11 | ENE 9 | ENE 8 | — | NE 10 | SE 15 | SE 10 | SE 8 | NE 10 | SSW 17 | SE 11 | SE 11 | SSW 16 |
| kJ | 44 | 37 | 76 | 30 | 17 | 176 | 75 | 105 | 82 | 30 | 14 | — | 4 | 8 | 27 | 77 | 4 | 95 | 31 | 20 | 266 |
Swell 3 Height (m) Direction Period (s) | S 8 | NE 12 | SSW 14 | SSW 16 | NE 6 | ENE 7 | SE 12 | SE 11 | ESE 6 | SSW 16 | — | — | — | — | SE 14 | SE 13 | — | SE 12 | E 12 | ESE 10 | ESE 10 |
| kJ | 1 | 5 | 41 | 53 | 10 | 35 | 161 | 126 | 22 | 51 | — | — | — | — | 7 | 7 | — | 23 | 3 | 10 | 20 |
Wind waves Height (m) Direction Period (s) | NW 2 | NE 3 | — | — | — | SSE 5 | — | NE 8 | WNW 3 | SSW 6 | SSW 9 | S 12 | SSW 12 | — | NW 2 | NW 4 | S 7 | — | S 7 | S 7 | SSW 9 |
| kJ | 2 | 2 | — | — | — | 53 | — | 80 | 9 | 247 | 1323 | 6203 | 5523 | — | 2 | 16 | 466 | — | 247 | 217 | 882 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 25 | 4 | 0 | 1 | 0 | 37 | 99 | 0 | 0 | 135 | 190 | 119 | 102 | 0 | 0 | 16 | 88 | 1 | 0 | 156 | 273 |
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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