Reef
both
Level 6/10

Blacks Reef

Opoutama, New Zealand
🪸Sharp reef👥Crowded

Excellent reef peak at Blacks, on the right as you drive toward Mahia township: the rights run hollower and longer, the lefts turn up in more SE-E swell, and there is a fun barrel section. Super consistent and sheltered from the wind, so it is busy. It works best on a S swell with N winds around high tide. Watch for: reef; crowds.

Blacks Reef surf forecast

Model forecast for swell, wind and tide.

10-Day Forecast
Today20
55
Fair
2.0m@15s
14km/h
Wed21
73
Good
1.8m@14s
9km/h
Thu22
78
Good
1.4m@14s
8km/h
Fri23
43
Poor
1.1m@10s
11km/h
Sat24
66
Good
1.4m@13s
10km/h
Sun25
66
Good
1.2m@13s
8km/h
Mon26
25
Poor
1.1m@11s
20km/h
Tue27
7
Poor
0.4m@11s
22km/h
Wed28
26
Poor
0.8m@9s
7km/h
Thu29
21
Poor
0.6m@10s
13km/h
Choppy 5+ days out, less certain

Today's Conditions

Find Flights
Best session: AfternoonAM 15 km/h · PM 10 km/h · High tide at 1pm (1.1m)
Swell
2.0m
S(188°)
Score: 20/25
Period
15s
Groundswell
Score: 25/25
Wind
14km/h
WSW(249°)
Score: 3/25
Weather
13°C
0.0mm48%
First light 5:45amSunrise 6:15amSunset 7:32pmLast light 8:02pm
Windswell
—
Secondary
0.1m
Confidence
100%

Location & Conditions

Loading map...
Swell2.0m @15s S in window
Wind14 km/h WSW onshore
SwellWind: Offshore Cross OnshoreShaded = inside ideal window
Showing forecast for today · all day

Hourly Forecast, Tide & Strike Windows

Strike window: 12:31–1:40pm · through highIdeal tide: high
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
°C
10°
12°
14°
15°
15°
10°
15°
17°
19°
17°
11°
16°
21°
22°
20°
12°
17°
19°
19°
18°
12°
19°
23°
24°
22°
12°
16°
20°
21°
18°
10°
14°
20°
21°
19°
16°
17°
20°
19°
15°
13°
15°
19°
20°
19°
16°
19°
23°
23°
19°
3m1.5
sec
15s
15s
15s
15s
15s
14s
14s
14s
14s
14s
14s
14s
14s
14s
14s
10s
10s
10s
10s
10s
13s
13s
13s
13s
13s
13s
13s
13s
13s
13s
11s
11s
11s
11s
11s
11s
11s
11s
11s
11s
9s
9s
9s
9s
9s
10s
10s
10s
10s
10s
swell
windkm/h
15g25
15g30
15g30
14g30
7g21
4g7
6g16
8g21
12g26
12g25
1g1
4g13
9g21
14g28
10g26
4g9
7g17
7g21
15g33
17g37
2g6
2g9
10g22
21g38
13g40
6g13
2g13
5g16
12g26
15g31
18g31
19g35
19g38
21g42
23g45
17g34
23g40
33g54
22g60
8g59
11g19
10g24
4g31
5g29
3g23
4g11
7g18
18g35
19g40
15g38
tidem
12:46am1.1m
6:57am0.1m
1:05pm1.1m
7:34pm0.1m
1:35am1.0m
7:47am0.1m
1:57pm1.2m
8:24pm0.1m
2:25am1.1m
8:30am0.1m
2:45pm1.2m
9:10pm0.1m
3:10am1.1m
9:20am0.1m
3:30pm1.2m
9:54pm0.0m
4:00am1.1m
10:07am0.1m
4:18pm1.3m
4:48am1.2m
10:58am0.1m
5:10pm1.3m
5:37am1.4m
11:50am0.0m
6:02pm1.4m
6:26am1.5m
12:43pm0.0m
6:53pm1.5m
1:03am0.0m
7:17am1.6m
1:36pm0.0m
7:45pm1.5m
1:54am0.0m
8:10am1.7m
Ideal tide (from tide preference)Strike windowNight

Tide times today

12:46 am
High · 1.07m
6:57 am
Low · 0.14m
1:05 pm
High · 1.14m
7:34 pm
Low · 0.07m
Times shown in spot-local time.

Strike Score Breakdown

55
Fair
Components
Swell Direction23/25
Swell Size20/25
Swell Period25/25
Wind3/25
Raw Score71/100
Adjustments
🤢 Wind History-7
💨 Gusty Wind-4
⚠️ Weak Component-5
Adjusted Score55/100
Confidence
Multiplier×1.00
Final Score55
🤢 Morning Sickness

Plan Your Strike

Return flights to GIS, departing today with a 5-day trip window.

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Swell Requirements

Optimal direction
S (185°)
Direction range
145° - 230°
Size range
1m - 4.1m
Ideal size
2.4m - 3.3m
Height multiplier
0.90×
Ideal period
14s+

Wind Requirements

Optimal direction
N (0°)
Offshore range
310° - 50°

Tide Requirements

Optimal tide
high

Water temp

17°C

Wetsuit

3/2mm fullsuit

Difficulty

6/10

Crowd level

8/10

Frequently Asked Questions

What tide is best at Blacks Reef?

The Blacks Reef profile favors high tide. Compare this preference with the forecast tide and local conditions before choosing a session.

What wind direction is offshore at Blacks Reef?

The Blacks Reef profile uses wind from N (0°) as its preferred direction, with an offshore range of 310° to 50°. Wind speed matters too: light winds outside that range can still produce surfable conditions, while strong offshore winds can make takeoffs difficult.

What swell size and direction work best at Blacks Reef?

The Blacks Reef scoring profile favors swell from S (145° to 230°), a swell-height range of 1m to 4.1m, and a reference period of 14s. These are model inputs, not guaranteed breaking-wave heights or a promise that the surf will suit every ability.

When is the best time of year to surf Blacks Reef?

The main season at Blacks Reef is Mar-Oct.

How do I get to Blacks Reef?

The spot profile lists GIS as a nearby airport. The estimated road transfer is 110 minutes.

What kind of wave is Blacks Reef?

Blacks Reef is a reef break, a peak with lefts and rights. Difficulty is rated 6/10.

Best Season

Peak: Mar-Oct

Getting There

Airport
GIS
Drive time
110 min
Data quality
verified

Strike Log

Community Discussion