Riversdale surf break

Riversdale surfForecast / Wairarapa / New Zealand

information circle12 Day Weather and Surf, issued 6 am Saturday 13 Dec 2025 NZDT
Forecast update in hr  min  s Forecast update imminent
Riversdale surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Riversdale sea temperature is
17.3° C
(Which is 1.7°C warmer than normal for this time of year)


Best Forecast Surf Conditions for Riversdale this week:

The surf forecast for Riversdale over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Dec 14) at 4AM. The primary swell is predicted to be 0.7m and 7s period with a secondary swell of 0.5m and 6s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Riversdale in the next 12 days are 2.5m 10s and forecast to arrive on Friday (Dec 19) at 4PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Wednesday (Dec 17) at 10AM.

Wave TypeTime (NZDT) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Sun 14th Dec)2.5ft (0.7m) 7s
Best Surf 7AM (Fri 19th Dec)6ft (1.9m) 9s
Most Powerful 4PM (Fri 19th Dec)8ft (2.5m) 10s

Table - best surf conditions forecast for Riversdale over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Warm (max 23°C on Mon morning, min 11°C on Sat night). Wind will be generally light.

Days 3-6 Weather Summary Light rain (total 8mm), mostly falling on Thu night. Warm (max 23°C on Tue morning, min 12°C on Wed night). Winds increasing (light winds from the NNW on Tue night, fresh winds from the SW by Wed night).

Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
2
1
0
0
0
0
1
0
0
1
0
0
2
3
2
3
Swell
Height Map
Wave Height (m) & direction (?)
1.1
SSW
1.1
S
0.8
SSW
0.5
S
1.2
ENE
1.5
NE
1.2
NE
1.6
NE
1.1
ENE
0.9
ENE
0.9
ENE
1.3
ENE
1
ENE
1.1
ENE
1.1
ENE
1.5
ENE
1.5
ENE
1.9
ENE
1.8
ENE
2.5
ENE
2
ENE
Period(s) (?)77874666787888899991010
Wave
Graph
(?)Metric surfscale
Energy kJ (?)12811681274914611316111788811971361571463293155675631191741
Wind
(km/h)
15
S
15
SSE
10
NNE
20
NE
30
NE
15
N
10
N
20
NNE
15
NNW
20
N
20
NNE
20
NNW
20
SW
30
SW
20
WSW
30
SW
25
SSW
15
SW
5
W
10
S
10
NNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
on
crosscrosscross-
on
cross-
off
cross-
off
crosscross-
off
cross-
off
crosscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
crosscross-
off
cross-
off
cross-
on
cross-
off
High Tide
/ height (m)
1:00PM
1.40
1:30AM
1.32
1:50PM
1.34
2:20AM
1.31
2:38PM
1.29
3:07AM
1.31
3:26PM
1.27
3:53AM
1.33
4:12PM
1.26
4:37AM
1.35
4:58PM
1.26
5:22AM
1.37
5:43PM
1.26
Low Tide
/ height (m)
7:20PM
0.18
7:40AM
0.25
8:07PM
0.22
8:30AM
0.28
8:52PM
0.25
9:20AM
0.30
9:36PM
0.28
10:08AM
0.31
10:20PM
0.29
10:55AM
0.31
11:04PM
0.30
11:41AM
0.30
11:49PM
0.29
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Sunrise5:35--5:37--5:37--5:37--5:37--5:37--5:37--
Sunset-8:42--8:42--8:43--8:44--8:45--8:45--8:45-
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
light rain
light rain
light rain
light rain
cloud
part cloud
light rain
part cloud
part cloud
part cloud
Rain (mm)
-----------3111--2---
Temp. °C161612181716232318232317151413141513181714
Feels °C (?)131311131213202016202014129691010171513
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Riversdale Surf forecast

The above surf forecast table for Riversdale provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Riversdale can be found by selecting the local surf guide option on the grey menu. Our Riversdale 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 (Riversdale) 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 Riversdale 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.

Riversdale is 38 km (24 miles) from Masterton. If you plan a holiday in The Wairarapa, look for hotels and other accommodation in Masterton. Masterton has rooms for a wide range of budgets as well as car hire and transport links.

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