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.

10-Day Forecast
Today5
32
Poor
2.5m@13s
26km/h
Thu6
23
Poor
3.5m@14s
31km/h
Fri7
11
Poor
3.8m@15s
25km/h
Sat8
1
Poor
3.8m@16s
29km/h
Sun9
0
Poor
3.9m@16s
39km/h
Mon10
0
Poor
2.8m@14s
44km/h
Tue11
10
Poor
2.1m@14s
42km/h
Wed12
1
Poor
1.6m@14s
38km/h
Thu13
4
Poor
1.7m@15s
40km/h
Fri14
9
Poor
1.6m@13s
25km/h
Choppy 5+ days out, less certain

Today's Conditions

Find Flights
Best session: AfternoonAM 22 km/h · PM 31 km/h · Tide at 1pm (0.7m)
Swell
2.5m
SSW(206°)
Score: 17/25
Period
13s
Medium period swell
Score: 25/25
Wind
26km/h
WSW(238°)
Score: 4/25
Weather
22°C
0.0mm36%
First light 6:38amSunrise 7:08amSunset 6:22pmLast light 6:52pm
Windswell0.6m@3sSecondary0.8mConfidence
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: 11:00am–4:47pm · 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°
21°
21°
21°
20°
20°
20°
20°
20°
20°
20°
19°
19°
20°
20°
20°
20°
21°
21°
21°
21°
21°
21°
21°
21°
21°
22°
22°
22°
22°
22°
22°
22°
22°
22°
22°
22°
22°
22°
22°
22°
23°
22°
23°
23°
23°
23°
23°
5m2.5
sec
13s
13s
13s
13s
13s
14s
14s
14s
14s
14s
15s
15s
15s
15s
15s
16s
16s
16s
16s
16s
16s
16s
16s
16s
16s
14s
14s
14s
14s
14s
14s
14s
14s
14s
14s
14s
14s
14s
14s
14s
15s
15s
15s
15s
15s
13s
13s
13s
13s
13s
swell
windkm/h
20g27
25g33
23g30
30g39
32g45
28g37
30g40
31g41
30g40
33g43
26g37
25g35
21g31
25g35
28g37
28g37
28g39
28g37
29g38
32g42
37g48
38g50
38g50
40g53
42g56
43g57
44g58
45g59
45g60
45g59
39g54
40g54
42g55
45g57
47g59
37g52
38g48
38g50
39g53
41g54
39g52
40g50
40g50
41g52
42g53
28g45
26g39
26g36
24g34
22g33
tidem
1:21am0.7m
7:45am0.1m
1:52pm0.7m
7:52pm0.1m
2:04am0.7m
8:30am0.1m
2:38pm0.6m
8:38pm0.1m
2:55am0.7m
9:22am0.0m
3:30pm0.6m
9:20pm0.1m
3:55am0.7m
10:30am0.0m
4:38pm0.5m
10:21pm0.1m
5:00am0.6m
11:40am0.1m
5:42pm0.5m
6:12am0.6m
12:55pm0.0m
7:06pm0.5m
1:06am0.1m
7:21am0.6m
2:04pm0.0m
8:20pm0.6m
2:20am0.1m
8:38am0.7m
3:03pm0.0m
9:20pm0.6m
3:21am0.1m
9:36am0.7m
3:52pm0.0m
10:03pm0.7m
4:12am0.0m
10:30am0.8m
Ideal tideStrike windowNight

Tide times today

1:21 am
High tide - 0.74m
7:45 am
Low tide - 0.08m
1:52 pm
High tide - 0.67m
7:52 pm
Low tide - 0.11m
Times shown in spot-local time.

Strike Score Breakdown

32
Poor
Components
Swell Direction0/25
Swell Size17/25
Swell Period25/25
Wind4/25
Raw Score46/100
Adjustments
🤢 Wind History-7
🌊 Tide+3
⚠️ Weak Component-10
Adjusted Score32/100
Confidence
Multiplier×1.00
Final Score32
🤢 Morning Sickness🌊 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
1.9m
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)?

Black Rock (Socials) works best on a mid tide, ideally between 0.4m and 1.5m on the local tide chart. The tide chart above shows today’s strike window.

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

Offshore wind at Black Rock (Socials) blows from the SSW (200°). Anything in the 160° to 240° range grooms the faces; outside it, expect chop or bumpy conditions.

What swell size and direction work best at Black Rock (Socials)?

Black Rock (Socials) wants NNW swell (310° to 50°) between 0.6m and 2.5m, with a period of 12s or more for quality waves.

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)?

Fly into RAR, then allow about 5 minutes by road. 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