
Surf Forecasts:
Dee Dees surf forecast from 16 Sep 2026:
- Best quality surf: Monday 21 Sep, 6AM (local time) - 13ft (4.0m), 11s period, SSW swell with cross-onshore winds.
- Most powerful swell: Monday 21 Sep, 3AM (local time) - 15ft (4.5m), 11s period, SSW swell with 4,815 kJ wave energy.
- Next surfable swell (1★+): Friday 18 Sep, 6AM (local time) - 4ft (1.2m), 6s period with SSW swell.
Best Forecast Surf Conditions for Dee Dees this week:
The surf forecast for Dee Dees over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 18) at 6AM. The primary swell is predicted to be 1.2m and 6s period with a secondary swell of 0.3m and 16s. Another secondary swell of 0.4m and 13s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Dee Dees in the next 16 days are 4.5m 11s and forecast to arrive on Monday (Sep 21) at 3AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 6s period and expected on Sunday (Sep 20) at 12AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Fri 18th Sep) | 4ft (1.2m) 6s |
| Best Surf | 6AM (Mon 21st Sep) | 13ft (4.0m) 11s |
| Most Powerful | 3AM (Mon 21st Sep) | 15ft (4.5m) 11s |
Table - best surf conditions forecast for Dee Dees over the next 16 days.
The Lowdown
Alright, Rusty here. Let's break down what we've got on the horizon for Dee Dees. This spot is a reef break, pretty consistent, and it likes swell from the south.
Right off the bat, we're looking at a bit of a slow start. The first few days are pretty ordinary, with the 16th and 17th offering nothing but messy, cross-shore junk. The water temps are sitting at 56°, which is a touch warmer than normal for this time of year.
Thursday the 18th is a glimmer of hope. Friday morning we get a clean 3ft swell from the south with light offshore winds. It's only a 6-second period, so it'll be a bit weak and crumbly, and the combined energy is only moderate (190), but it's the first sign of life. The afternoon stays clean with a 1ft SSW groundswell, but it's tiny.
Now, Saturday the 19th of September is where it starts to get interesting. Saturday morning is a standout. We've got a clean 4ft swell from the SSW with a very long 15-second period and light offshore winds. The combined energy is strong at 792, so there's proper power behind it. That's a proper long-period groundswell, which on a reef like Dee Dees should shape up into some nice lines. It will be well overhead, but the long period means longer lulls between sets, which helps with the paddle out. The afternoon gets ruined by a cross-shore breeze, so make the most of the morning.
Sunday the 20th is a write-off. We get a massive 12ft SSW swell, but it's accompanied by a fresh, onshore wind. That's just a washing machine. The combined energy is strong (1476) but the quality is zero.
Monday the 21st is for experts only. The morning has a huge 12ft SSW swell (2667 combined energy) and the wind is light, but the forecast flat-out says it's too big for this break. The afternoon drops to a still-very-serious 7ft with clean, offshore wind, but again, it's too big for most.
Things settle down through the middle of the week, but the quality is poor with a lot of onshore wind. There's a brief window on Friday the 25th of September with a clean 4ft S swell and light offshore wind. It's a solid chest-to-head-high size, with moderate energy (359) and a short period of 9 seconds, so it'll be fun but not firing.
Then we get another promising window around Monday the 28th of September. The morning shows a clean 8ft SSW swell with a long 13-second period, light offshore wind, and a very strong combined energy of 2250. Again, for Dee Dees, 8ft is big, likely expert territory. The afternoon is slightly smaller at 8ft but shifts to a cross-shore breeze.
Finally, Tuesday the 29th of September offers a real highlight in the afternoon. We get a clean 6ft S swell with a 12-second period. The wind is light offshore, and the combined energy is strong at 850. This is a proper window for intermediate to advanced surfers. Good, powerful lines with clean conditions.
For the absolute best on offer, I'd lock in Saturday morning the 19th of September for a session of that long-period, clean SSW swell. It'll be nicely overhead and the reef should handle the direction well. The second call is Tuesday afternoon the 29th of September for a similar, slightly smaller, very clean window. If you're an expert, the Monday the 28th of September is worth looking at, but it is big.
Keep in mind, after that, we run into a gap with nothing but small, weak, or onshore junk through to the end of the outlook on October 1st. So make the most of those windows.
Rusty.
Short Range ForecastModerate rain (total 13mm), heaviest on Thu night. Very mild (max 15°C on Thu morning, min 8°C on Fri night). Winds decreasing (strong winds from the NW on Wed afternoon, calm by Fri morning). | Days 5-7 Weather SummaryLight rain (total 5mm), mostly falling on Sat night. Very mild (max 14°C on Mon afternoon, min 8°C on Sun morning). Winds decreasing (fresh winds from the S on Sat night, light winds from the NW by Mon morning). | |||||||||||||||||||
Wed 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | ||||||||||||||
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 11 | NW 6 | NW 5 | SW 13 | SSW 7 | S 6 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 12 | SSW 8 | SSW 9 | SSW 11 | SSW 11 | SSW 10 | SSW 9 | SSW 8 | S 8 | S 7 |
Wave Graph | ||||||||||||||||||||
20 | 190 | 76 | 45 | 257 | 81 | 93 | 242 | 715 | 459 | 258 | 1454 | 1353 | 4757 | 2574 | 935 | 232 | 264 | 531 | 215 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | off | cross-off | cross | cross-off | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-off | cross-off | cross-on | cross | cross |
High Tide | 9:21PM1.57m | 9:41AM1.62m | 10:07PM1.55m | 10:26AM1.60m | 10:49PM1.53m | 11:10AM1.57m | 11:30PM1.49m | 11:53AM1.54m | 00:10AM1.45m | 12:35PM1.52m | 00:52AM1.42m | 1:16PM1.51m | 1:36AM1.40m | |||||||
Low Tide | 3:20PM0.46m | 3:32AM0.52m | 4:09PM0.48m | 4:18AM0.53m | 4:55PM0.49m | 5:01AM0.53m | 5:38PM0.48m | 5:41AM0.53m | 6:17PM0.47m | 6:19AM0.52m | 6:56PM0.46m | 6:56AM0.51m | 7:33PM0.47m | |||||||
— | — | 6:18 | — | — | 6:16 | — | — | 6:13 | — | — | 6:11 | — | — | 6:11 | — | — | 6:09 | — | — | |
6:08 | — | — | 6:09 | — | — | 6:10 | — | — | 6:12 | — | — | 6:13 | — | — | 6:14 | — | — | 6:15 | — | |
mm | — | — | — | 3 | 9 | — | — | 1 | — | — | 2 | 2 | — | — | — | — | — | 1 | 1 | — |
Temp °C | 14 | 13 | 15 | 15 | 9 | 12 | 11 | 10 | 13 | 13 | 13 | 9 | 10 | 9 | 13 | 14 | 12 | 9 | 9 | 7 |
Feels °C | 5 | 6 | 10 | 10 | 4 | 12 | 10 | 5 | 7 | 7 | 6 | 3 | 2 | 1 | 9 | 11 | 7 | 3 | 5 | 4 |
Swell 1 Height (m) Direction Period (s) | SSW 13 | SSW 14 | SSW 14 | SW 13 | SSW 14 | S 6 | S 6 | SSW 15 | SSW 15 | SSW 14 | SSW 12 | ESE 11 | SSW 15 | ESE 11 | SSW 11 | SSW 10 | SSW 9 | NW 4 | SSW 15 | S 7 |
17 | 18 | 41 | 45 | 41 | 81 | 25 | 242 | 715 | 459 | 258 | 12 | 42 | 23 | 2574 | 935 | 232 | 3 | 43 | 215 | |
Swell 2 Height (m) Direction Period (s) | SE 11 | S 8 | ESE 10 | ESE 10 | ESE 9 | ESE 12 | SE 12 | SE 11 | SE 12 | SE 11 | SE 12 | ESE 7 | SSW 15 | — | SSW 18 | E 15 | SE 10 | SE 13 | SSW 13 | SSW 16 |
20 | 5 | 11 | 10 | 8 | 61 | 69 | 64 | 36 | 33 | 34 | 10 | 44 | — | 66 | 4 | 4 | 7 | 16 | 95 | |
Swell 3 Height (m) Direction Period (s) | S 8 | SE 10 | S 8 | S 7 | ESE 14 | SSW 16 | SSW 15 | NE 6 | ESE 6 | ESE 6 | SW 18 | NW 7 | ENE 10 | — | SE 10 | — | SE 13 | ESE 9 | SE 12 | SSW 11 |
5 | 4 | 1 | 1 | 20 | 48 | 93 | 2 | 41 | 3 | 12 | 8 | 9 | — | 27 | — | 7 | 17 | 6 | 24 | |
Wind waves Height (m) Direction Period (s) | NW 6 | NW 6 | NW 5 | NW 5 | SSW 7 | — | SE 3 | S 4 | — | NW 5 | NW 6 | SSW 8 | SSW 9 | SSW 11 | — | NW 4 | NNW 4 | SSW 8 | S 8 | — |
400 | 190 | 76 | 31 | 257 | — | 5 | 18 | — | 60 | 275 | 1454 | 1353 | 4757 | — | 12 | 23 | 264 | 531 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 85 | 27 | 11 | 11 | 82 | 0 | 0 | 125 | 0 | 11 | 99 | 125 | 323 | 102 | 12 | 1 | 0 | 82 | 102 | 1 |
Best forecast wave conditions in The Wairarapa | ||||||||||||||||||||
Best forecast wave conditions in New Zealand | ||||||||||||||||||||
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Information about the Dee Dees Surf forecast
The above surf forecast table for Dee Dees provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Dee Dees can be found by selecting the local surf guide option on the grey menu. Our Dee Dees 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 (Dee Dees) 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 Dee Dees 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.
Dee Dees is 40 km (25 miles) from Lower Hutt. If you plan a holiday in The Wairarapa, look for hotels and other accommodation in Lower Hutt. Lower Hutt has rooms for a wide range of budgets as well as car hire and transport links.










