Surf Forecasts:
Dee Dees surf forecast from 15 Aug 2026:
- Best quality surf: Monday 17 Aug, 3AM (local time) - 10ft (3.0m), 8s period, S swell with cross-shore winds.
- Most powerful swell: Tuesday 18 Aug, 9PM (local time) - 20ft (6.0m), 12s period, SSW swell with 10,364 kJ wave energy.
- Next surfable swell (1★+): Monday 17 Aug, 3AM (local time) - 10ft (3.0m), 8s period with S 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 Monday (Aug 17) at 3AM. The primary swell is predicted to be 3.0m and 8s period with a secondary swell of 0.9m and 15s. Another secondary swell of 0.7m and 10s is also forecast. The wind is predicted to be cross-shore as the swell arrives.
The most powerful waves expected at Dee Dees in the next 16 days are 6.0m 12s and forecast to arrive on Tuesday (Aug 18) at 9PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 7s period and expected on Sunday (Aug 23) at 12AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Mon 17th Aug) | 10ft (3.0m) 8s |
| Best Surf | 3AM (Mon 17th Aug) | 10ft (3.0m) 8s |
| Most Powerful | 9PM (Tue 18th Aug) | 20ft (6.0m) 12s |
Table - best surf conditions forecast for Dee Dees over the next 16 days.
The Lowdown
Hey, Rusty here. Let’s break down what’s coming.
This Saturday afternoon we’ve got a tiny 1ft SSW groundswell with a really long 16-second period at Dee Dees. Water temp is 54°, about normal for this time of year. Combined energy is weak at 111, so it’s barely moving. Wind is glassy, and with that long period, the little waves will be clean and lined up. Just a teaser – worth a paddle if you’re bored, but don’t expect much.
Sunday turns nasty. A strong southerly kicks up a 40 km/h cross-onshore wind. Swell jumps to 15ft, but the period drops to 9 seconds and energy hits 3183 – moderate, but the conditions are a total mess. Stay on land.
Monday morning brings 8ft with an 8-second period and a moderate cross-shore breeze. Energy is moderate at 1125, but the swell is too big for the break. Not good. Monday afternoon drops to 3ft, but it’s choppy with cross-onshore wind.
Tuesday and Wednesday are rough. Strong cross-onshore winds from the SSW at 40 km/h, with swell sizes from 13ft to 16ft. The energy is strong, ranging from 2651 to 6703, but conditions are terrible – lumpy, messy, and cross-choppy.
Thursday is where it gets good. The morning is still marginal with 7ft and a light cross-onshore wind. But Thursday afternoon is the real standout. Wind goes glassy, swell drops to a clean 6ft from the S with an 11-second period, and energy is 908. It’s glassy, clean, and surfable. Best session of the whole forecast.
Friday morning is also a winner. 5ft from the SSW with a 13-second period, a light cross-offshore breeze from the north, and clean conditions. Energy is moderate at 1225. It’s excellent for experienced surfers – long period gives the waves shape and punch.
After that, it’s mostly small and inconsistent through the weekend and into the following week. Saturday the 22nd is clean but tiny at 4ft. Sunday the 23rd is blown out with strong cross-shore winds. Monday the 24th is basically flat at 1ft.
The final weekend, Saturday the 30th, shows potential with a 13ft SSW swell and glassy wind, but the energy is strong at 2119, and the swell might be too big for Dee Dees. For experts only, and it’s far out, so take it with a grain of salt.
The pick of the bunch is Thursday afternoon – glassy, clean, and waves for everyone. Friday morning is a close second for the more experienced. The rest is either blown out, too big, or flat.
Rusty, out.
Short Range ForecastHeavy rain (total 24mm), heaviest during Sat night. Very mild (max 12°C on Sat afternoon, min 6°C on Mon night). Mainly strong winds. | Days 5-7 Weather SummaryModerate rain (total 10mm), heaviest on Tue afternoon. Very mild (max 12°C on Fri morning, min 7°C on Thu night). Winds decreasing (strong winds from the SSW on Tue afternoon, calm by Thu afternoon). | |||||||||||||||||||
Sat 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | ||||||||||||||
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 7 | S 9 | S 9 | S 9 | S 8 | SSW 14 | SSW 13 | SSW 9 | SSW 10 | SSW 12 | SSW 12 | SSW 15 | S 13 | S 12 | S 11 | S 11 | SSW 13 | SSW 15 | SSW 13 |
Wave Graph  | ||||||||||||||||||||
 kJ | 97 | 938 | 3106 | 2744 | 1755 | 786 | 293 | 699 | 2452 | 5159 | 9810 | 5037 | 6696 | 3059 | 1066 | 894 | 652 | 874 | 1576 | 750 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | cross-on | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | cross-off | cross-off | cross-on | cross-off |
High Tide | 7:08PM1.69m | 7:40AM1.62m | 8:05PM1.65m | 8:33AM1.64m | 8:59PM1.63m | 9:24AM1.65m | 9:50PM1.61m | 10:12AM1.64m | 10:38PM1.59m | 11:00AM1.63m | 11:23PM1.56m | 11:47AM1.61m | 00:06AM1.52m | |||||||
Low Tide | 1:34AM0.34m | 1:52PM0.28m | 2:27AM0.36m | 2:50PM0.33m | 3:18AM0.40m | 3:45PM0.38m | 4:07AM0.43m | 4:37PM0.43m | 4:54AM0.47m | 5:26PM0.46m | 5:38AM0.50m | 6:12PM0.48m | ||||||||
 |  | |  |  |  |  |  | | | | | |  | | | | |  | | |
 | — | — | 7:09 | — | — | 7:07 | — | — | 7:05 | — | — | 7:05 | — | — | 7:03 | — | — | 7:01 | — | — |
 | 5:37 | — | — | 5:37 | — | — | 5:38 | — | — | 5:39 | — | — | 5:40 | — | — | 5:42 | — | — | 5:43 | — |
mm | 5 | 11 | 2 | — | — | 1 | — | 1 | 4 | 4 | 4 | 2 | — | — | — | — | — | — | — | — |
Temp °C | 12 | 10 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 9 | 9 | 10 | 9 | 11 | 10 | 9 | 12 | 12 | 8 |
Feels °C | 11 | 4 | -1 | -2 | -2 | 2 | 3 | 2 | -1 | -1 | 1 | 2 | 4 | 4 | 8 | 8 | 6 | 9 | 9 | 5 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | E 8 | E 9 | SSW 20 | SSW 16 | SSW 15 | SE 9 | SE 8 | SE 9 | — | SE 15 | SE 14 | SE 13 | S 13 | S 12 | S 11 | S 11 | SSW 13 | SSW 15 | SSW 13 |
| kJ | 97 | 1 | 63 | 38 | 273 | 305 | 172 | 69 | 83 | — | 9 | 8 | 7 | 2293 | 1066 | 894 | 652 | 874 | 1576 | 750 |
Swell 2 Height (m) Direction Period (s) | ESE 7 | SE 13 | ESE 8 | SSW 19 | E 9 | SE 16 | SSW 14 | ESE 14 | E 10 | — | — | — | — | SE 12 | SE 11 | SE 13 | S 16 | S 16 | SE 12 | SE 12 |
| kJ | 5 | 7 | 14 | 73 | 80 | 10 | 293 | 21 | 98 | — | — | — | — | 6 | 32 | 7 | 188 | 339 | 6 | 6 |
Swell 3 Height (m) Direction Period (s) | SE 13 | ESE 13 | — | — | SE 16 | ESE 16 | S 20 | ESE 14 | ESE 14 | — | — | — | — | — | — | SE 14 | SE 12 | SE 12 | — | E 10 |
| kJ | 7 | 17 | — | — | 10 | 24 | 7 | 20 | 18 | — | — | — | — | — | — | 7 | 6 | 6 | — | 2 |
Wind waves Height (m) Direction Period (s) | SSW 3 | SSW 7 | S 9 | S 9 | S 9 | S 8 | SSW 8 | SSW 13 | SSW 9 | SSW 10 | SSW 12 | SSW 12 | SSW 15 | S 13 | — | — | NW 4 | NNW 4 | NW 3 | NNW 4 |
| kJ | 2 | 938 | 3106 | 2744 | 1755 | 786 | 266 | 699 | 2452 | 5159 | 9810 | 5037 | 6696 | 3059 | — | — | 7 | 6 | 3 | 11 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 244 | 248 | 248 | 130 | 125 | 125 | 92 | 99 | 298 | 248 | 237 | 177 | 99 | 64 | 0 | 0 | 0 | 11 | 0 |
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.
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