Reef
both
Level 6/10

Black Rock (Socials)

Nikao, Rarotonga, Cook Islands
🪸Sharp reef🌀Strong rips

Black Rock (locally known as Socials) is Rarotonga's most popular surf break, located in front of the Nikao Social Centre on the northwest coast. A reef break offering both lefts and rights, it catches North Pacific swells during the November-March season. More accessible than the south coast passes, it's the go-to break for the local surf community.

Black Rock (Socials) surf forecast

Model forecast for swell, wind and tide.

10-Day Forecast
Today19
49
Fair
2.0m@12s
11km/h
Sun20
32
Poor
1.1m@13s
17km/h
Mon21
46
Fair
1.6m@14s
12km/h
Tue22
36
Poor
2.6m@15s
17km/h
Wed23
30
Poor
3.1m@14s
11km/h
Thu24
48
Fair
1.8m@12s
20km/h
Fri25
49
Fair
2.2m@15s
24km/h
Sat26
30
Poor
3.2m@14s
21km/h
Sun27
21
Poor
2.7m@15s
20km/h
Mon28
39
Poor
2.1m@14s
14km/h
Groomed 5+ days out, less certain

Today's Conditions

Find Flights
Best session: AfternoonAM 13 km/h · PM 9 km/h · Tide at 2pm (0.5m)
Swell
2.0m
S(173°)
Score: 25/25
Period
12s
Medium period swell
Score: 25/25
Wind
11km/h
NE(47°)
Score: 7/25
Weather
22°C
0.0mm42%
First light 6:01amSunrise 6:31amSunset 6:34pmLast light 7:04pm
Secondary0.4mConfidence
100%

Location & Conditions

Loading map...
0°45°90°135°180°225°270°315°NESW
Swell
Wind
Showing forecast for today

Hourly Forecast, Tide & Strike Windows

Strike window: 12:23–5:23pm · through highIdeal tide: 0.4–1.5m
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
22°
22°
22°
22°
22°
23°
23°
24°
24°
24°
24°
24°
24°
24°
24°
22°
22°
22°
22°
22°
22°
22°
23°
23°
22°
22°
22°
21°
21°
21°
22°
22°
22°
21°
21°
21°
21°
21°
21°
21°
21°
21°
21°
22°
22°
22°
22°
22°
23°
23°
4m2.0
sec
12s
12s
12s
12s
12s
13s
13s
13s
13s
13s
14s
14s
14s
14s
14s
15s
15s
15s
15s
15s
14s
14s
14s
14s
14s
12s
12s
12s
12s
12s
15s
15s
15s
15s
15s
14s
14s
14s
14s
14s
15s
15s
15s
15s
15s
14s
14s
14s
14s
14s
swell
windkm/h
15g23
10g14
10g17
10g17
9g16
16g22
20g26
19g24
16g20
15g20
23g28
10g15
11g15
12g14
9g15
18g24
18g23
18g25
16g23
14g22
10g18
9g17
8g15
10g17
20g27
22g31
17g31
20g29
22g29
22g31
22g31
23g31
26g34
26g36
23g38
18g30
20g32
22g30
23g31
21g34
20g29
20g29
20g28
19g28
18g28
14g25
13g24
14g22
14g21
13g21
tidem
2:10am0.6m
8:30am0.1m
2:45pm0.5m
8:30pm0.2m
3:00am0.6m
9:30am0.2m
3:45pm0.5m
9:30pm0.3m
4:00am0.6m
10:45am0.3m
4:45pm0.5m
5:10am0.6m
11:45am0.3m
5:50pm0.5m
6:15am0.6m
12:54pm0.3m
7:00pm0.6m
1:15am0.3m
7:30am0.6m
1:54pm0.2m
7:45pm0.6m
2:06am0.2m
8:12am0.7m
2:38pm0.2m
8:38pm0.7m
2:55am0.1m
9:04am0.7m
3:10pm0.1m
9:12pm0.7m
3:30am0.1m
9:43am0.7m
3:45pm0.1m
9:50pm0.7m
4:10am0.0m
10:22am0.7m
Ideal tideStrike windowNight

Tide times today

2:10 am
High tide - 0.59m
8:30 am
Low tide - 0.14m
2:45 pm
High tide - 0.52m
8:30 pm
Low tide - 0.23m
Times shown in spot-local time.

Strike Score Breakdown

49
Fair
Components
Swell Direction0/25
Swell Size25/25
Swell Period25/25
Wind7/25
Raw Score57/100
Adjustments
Wind History-1
🌊 Tide+3
⚠️ Weak Component-10
Adjusted Score49/100
Confidence
Multiplier×1.00
Final Score49
🌊 Mostly in the tide window

Plan Your Strike

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

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Swell Requirements

Optimal direction
NNW (340°)
Direction range
310° - 50°
Size range
0.6m - 2.5m
Ideal size
1.5m - 2m
Height multiplier
0.92×
Ideal period
12s+

Wind Requirements

Optimal direction
SSW (200°)
Offshore range
160° - 240°

Tide Requirements

Optimal tide
mid
Optimal range
0.4m - 1.5m

Water temp

27°C

Wetsuit

Boardshorts / Rashguard

Difficulty

6/10

Crowd level

5/10

Access: Shore access from Nikao Social Centre. 3km from airport.

Frequently Asked Questions

What tide is best at Black Rock (Socials)?

The Black Rock (Socials) profile favors mid tide, ideally between 0.4m and 1.5m on the local tide chart. Compare this preference with the forecast tide and local conditions before choosing a session.

What wind direction is offshore at Black Rock (Socials)?

The Black Rock (Socials) profile uses wind from SSW (200°) as its preferred direction, with an offshore range of 160° to 240°. 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 Black Rock (Socials)?

The Black Rock (Socials) scoring profile favors swell from NNW (310° to 50°), a swell-height range of 0.6m to 2.5m, and a reference period of 12s. 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 Black Rock (Socials)?

The main season at Black Rock (Socials) is Nov, Dec, Jan, Feb, Mar. A secondary window runs Apr-Oct. Nov-Mar for N swells from North Pacific storms. Year-round potential.

How do I get to Black Rock (Socials)?

The spot profile lists RAR as a nearby airport. The estimated road transfer is 5 minutes. Shore access from Nikao Social Centre. 3km from airport.

What kind of wave is Black Rock (Socials)?

Black Rock (Socials) is a reef break, a peak with lefts and rights. Difficulty is rated 6/10.

Best Season

Peak: Nov, Dec, Jan, Feb, Mar

Secondary: Apr-Oct

Nov-Mar for N swells from North Pacific storms. Year-round potential.

Getting There

Airport
RAR
Drive time
5 min
Data quality
unverified

Strike Log

Community Discussion