Motiti Island - Ernies surfForecast / Bay of Plenty / New Zealand

information circle12 Day Weather and Surf, issued 12 pm Tuesday 16 Dec 2025 NZDT
Forecast update in hr  min  s Forecast update imminent
Motiti Island - Ernies surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Motiti Island - Ernies sea temperature is
20.8° C
(Which is 2.6°C warmer than normal for this time of year)


Best Forecast Surf Conditions for Motiti Island - Ernies this week:

The surf forecast for Motiti Island - Ernies over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Dec 18) at 1PM. The primary swell is predicted to be 0.7m and 8s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Motiti Island - Ernies in the next 12 days are 1.9m 6s and forecast to arrive on Tuesday (Dec 16) at 4PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.1m 6s period and expected on Tuesday (Dec 16) at 7PM.

Wave TypeTime (NZDT) & Date Wave Height & Period
Next good surf (1 star+) 1PM (Thu 18th Dec)2.5ft (0.7m) 8s
Best Surf 1PM (Thu 18th Dec)2.5ft (0.7m) 8s
Most Powerful 4PM (Tue 16th Dec)6ft (1.9m) 6s

Table - best surf conditions forecast for Motiti Island - Ernies over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Moderate rain (total 12mm), heaviest on Tue night. Warm (max 20°C on Tue afternoon, min 13°C on Wed night). Winds decreasing (strong winds from the NNW on Tue night, light winds from the SSW by Thu morning).

Days 3-6 Weather Summary Light rain (total 2mm), mostly falling on Sat morning. Warm (max 22°C on Fri night, min 14°C on Sun morning). Winds decreasing (fresh winds from the W on Sat night, light winds from the WNW by Sun night).

Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
1
0
1
1
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.1
N
1.9
N
0.4
ENE
0.4
ENE
0.6
ENE
0.5
NE
0.6
ENE
0.7
ENE
0.7
ENE
0.7
ENE
0.7
ENE
0.6
ENE
0.5
ENE
0.4
ENE
0.4
ENE
0.4
NE
0.4
NE
0.4
NE
0.4
NE
0.3
NNE
0.4
NNE
Period(s) (?)56777788888888888991616
Wave
Graph
(?)Metric surfscale
Energy kJ (?)5523117183425435251515649352627181831205185
Wind
(km/h)
20
NNW
25
NNW
40
NNW
30
WSW
25
W
30
WSW
10
SSW
10
W
25
W
15
W
25
W
25
W
30
WNW
30
WSW
35
W
20
WSW
15
W
20
WNW
15
WNW
25
WNW
35
NNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
cross-
off
offoffoffcross-
off
offoffoffoffoffcross-
off
offoffcross-
off
offcross-
off
offcross-
off
cross-
off
High Tide
/ height (m)
4:57PM
1.53
5:37AM
1.54
5:44PM
1.53
6:23AM
1.58
6:30PM
1.54
7:07AM
1.62
7:15PM
1.56
7:50AM
1.65
7:58PM
1.58
8:32AM
1.68
8:40PM
1.59
9:13AM
1.70
9:22PM
1.59
Low Tide
/ height (m)
10:49AM
0.50
11:14PM
0.36
11:40AM
0.50
12:00AM
0.35
12:28PM
0.48
12:46AM
0.33
1:15PM
0.46
1:30AM
0.30
2:01PM
0.43
2:14AM
0.28
2:45PM
0.40
2:56AM
0.26
3:28PM
0.39
3:38AM
0.25
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Sunrise5:47--5:47--5:47--5:48--5:48--5:48--5:48--
Sunset-8:31--8:31--8:32--8:32--8:34--8:35--8:35-
part cloud
part cloud
rain showers
clear
part cloud
clear
part cloud
clear
clear
part cloud
part cloud
part cloud
rain showers
clear
clear
clear
part cloud
rain showers
cloud
cloud
rain showers
Rain (mm)
--12---------1----1--1
Temp. °C192020151818131920162122182021152020192322
Feels °C (?)171514101110111515141718131315111615172016
  • 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 Motiti Island - Ernies Surf forecast

The above surf forecast table for Motiti Island - Ernies provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Motiti Island - Ernies can be found by selecting the local surf guide option on the grey menu. Our Motiti Island - Ernies 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 (Motiti Island - Ernies) 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 Motiti Island - Ernies 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 Bay of Plenty? If you are looking for accommodation near Motiti Island - Ernies, camping, hotels and holiday cottages in Bay of Plenty, consider staying in Tauranga which is 22 km (14 miles) away. Other places in and around Bay of Plenty where you can find information about places to rent, and car hire include Rotorua which is 57 km (35 miles) away, Whakatane, Cambridge and Hamilton.

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