Onemana surf break

Onemana surfForecast / Coromandel / New Zealand

information circle12 Day Weather and Surf, issued 6 am Friday 19 Dec 2025 NZDT
Forecast update in hr  min  s Forecast update imminent
Onemana surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Onemana sea temperature is
20.6° C
(Which is 2.2°C warmer than normal for this time of year)


Best Forecast Surf Conditions for Onemana this week:

The surf forecast for Onemana over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Dec 19) at 10AM. The primary swell is predicted to be 0.6m and 8s period with a secondary swell of 0.3m and 10s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Onemana in the next 12 days are 1.5m 7s and forecast to arrive on Wednesday (Dec 24) at 10PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 6s period and expected on Tuesday (Dec 23) at 7AM.

Wave TypeTime (NZDT) & Date Wave Height & Period
Next good surf (1 star+)10AM (Fri 19th Dec)2ft (0.6m) 8s
Best Surf10PM (Wed 24th Dec)5ft (1.5m) 7s
Most Powerful10PM (Wed 24th Dec)5ft (1.5m) 7s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Warm (max 22°C on Fri morning, min 13°C on Sun night). Wind will be generally light.

Days 3-6 Weather Summary Light rain (total 4mm), mostly falling on Mon afternoon. Warm (max 21°C on Mon morning, min 16°C on Wed night). Winds increasing (calm on Mon morning, fresh winds from the WNW by Tue afternoon).

Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
1
1
1
1
1
1
0
1
1
1
1
1
0
0
1
1
1
1
1
0
1
Swell
Height Map
Wave Height (m) & direction (?)
0.6
ENE
0.5
ENE
0.3
NNE
0.3
NNE
0.3
NNE
0.4
NNE
0.4
NNE
0.4
NNE
0.4
NNE
0.4
NNE
0.4
NNE
0.4
NE
1.3
NNW
1.2
NNW
0.9
NNW
0.4
NNE
1
NNW
1.1
N
0.4
NNE
0.4
NNE
0.4
NNE
Period(s) (?)88151514141313131212166781368131313
Wave
Graph
(?)Metric surfscale
Energy kJ (?)443345434067595857514964136121946985138706868
Wind
(km/h)
20
W
20
W
20
WNW
20
W
25
WSW
20
WSW
15
WSW
10
WSW
15
WSW
5
WNW
10
WSW
15
WNW
25
WNW
30
WNW
20
W
15
W
10
W
10
WNW
10
NW
20
NW
10
W
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offoffoffoffoffoffcross-
off
cross-
off
offglassoffoffcross-
off
offoffoffoffoffcross-
off
cross-
off
off
High Tide
/ height (m)
7:17PM
1.57
7:52AM
1.67
8:00PM
1.59
8:34AM
1.70
8:42PM
1.60
9:16AM
1.72
9:24PM
1.60
9:56AM
1.73
10:05PM
1.59
10:36AM
1.73
10:47PM
1.58
11:15AM
1.73
11:30PM
1.57
Low Tide
/ height (m)
1:17PM
0.47
1:32AM
0.31
2:03PM
0.44
2:16AM
0.28
2:47PM
0.41
2:58AM
0.27
3:30PM
0.39
3:40AM
0.26
4:12PM
0.38
4:21AM
0.26
4:55PM
0.36
5:01AM
0.27
5:37PM
0.35
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Sunrise5:50--5:52--5:52--5:52--5:52--5:52--5:54--
Sunset-8:34--8:35--8:35--8:36--8:36--8:37--8:37-
part cloud
cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
rain showers
light rain
part cloud
light rain
light rain
cloud
part cloud
clear
clear
clear
clear
Rain (mm)
----------11-11------
Temp. °C222218222216202215212120212120212017242518
Feels °C (?)191915181712171912212120181820202116212217
  • Map Icons:
  • Break
  • 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 Onemana Surf forecast

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

Onemana is 64 km (40 miles) from Tauranga. If you plan a holiday in The Coromandel, look for hotels and other accommodation in Tauranga. Tauranga has rooms for a wide range of budgets as well as car hire and transport links.

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