Reef
left
Level 6/10

Kolbano

West Timor, Indonesia
🪸Sharp reef

Kolbano is a left reef break on the south-facing coast of West Timor, intercepting Indian Ocean groundswell that wraps around the southern Indonesian archipelago. The wave should be offshore in the NE trade winds during the dry season, providing clean conditions on S-SW swell. As one of the least-surfed quality breaks in Indonesia, it offers genuine discovery potential for adventurous surfers willing to explore beyond the beaten track.

Kolbano surf forecast

Model forecast for swell, wind and tide.

10-Day Forecast
Sun20
11
Poor
1.1m@15s
18km/h
Mon21
36
Poor
1.0m@15s
16km/h
Tue22
30
Poor
0.8m@14s
15km/h
Wed23
30
Poor
0.7m@13s
17km/h
Thu24
30
Poor
0.7m@15s
17km/h
Fri25
30
Poor
0.6m@14s
17km/h
Sat26
3
Poor
0.6m@13s
16km/h
Sun27
36
Poor
0.9m@15s
17km/h
Mon28
31
Poor
1.0m@16s
18km/h
Tue29
30
Poor
0.7m@15s
15km/h
5+ days out, less certain

Today's Conditions

Find Flights
Best session: MorningAM 13 km/h · PM 18 km/h · Tide at 11am (1.1m)
Swell
1.1m
E(91°)
Score: 5/25
Period
15s
Long period groundswell
Score: 25/25
Wind
18km/h
ENE(74°)
Score: 1/25
Weather
27°C
0.0mm13%
First light 5:03amSunrise 5:33amSunset 5:38pmLast light 6:08pm
Windswell0.5m@3sSecondary0.4mConfidence
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: 7:24am–6:08pm · through lowIdeal tide: 0.5–1.5m
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
23°
28°
29°
28°
25°
23°
29°
29°
28°
25°
22°
30°
29°
28°
25°
23°
29°
29°
28°
26°
24°
30°
29°
28°
25°
24°
30°
29°
28°
26°
27°
29°
29°
28°
26°
27°
29°
30°
29°
26°
27°
29°
29°
29°
26°
27°
29°
29°
29°
26°
2m1.0
sec
15s
15s
15s
15s
15s
15s
15s
15s
15s
15s
14s
14s
14s
14s
14s
13s
13s
13s
13s
13s
15s
15s
15s
15s
15s
14s
14s
14s
14s
14s
13s
13s
13s
13s
13s
15s
15s
15s
15s
15s
16s
16s
16s
16s
16s
15s
15s
15s
15s
15s
swell
windkm/h
10g25
16g41
23g56
20g52
16g43
9g22
17g43
20g50
18g49
13g36
9g20
15g38
21g53
18g46
13g38
10g25
15g40
22g55
18g52
14g46
9g26
15g40
24g57
20g56
15g50
9g26
16g40
22g55
20g57
14g56
8g25
11g31
19g46
21g55
16g55
13g35
16g40
20g49
20g54
16g54
13g34
16g40
21g50
22g56
16g57
11g30
13g35
18g48
19g55
14g53
tidem
2:56am2.2m
11:04am1.1m
6:30pm1.5m
4:10am2.0m
1:20pm1.1m
10:00pm1.8m
7:12am2.0m
2:43pm0.9m
9:51pm2.0m
2:55am1.5m
8:40am2.2m
3:22pm0.8m
10:04pm2.2m
3:34am1.2m
9:26am2.4m
3:52pm0.6m
10:18pm2.4m
4:06am0.9m
10:07am2.5m
4:19pm0.5m
4:36am0.6m
10:43am2.7m
4:46pm0.5m
5:07am0.3m
11:18am2.7m
5:12pm0.4m
5:38am0.1m
11:52am2.8m
5:40pm0.5m
6:11am0.0m
Ideal tideStrike windowNight

Tide times today

2:56 am
High tide - 2.20m
11:04 am
Low tide - 1.06m
6:30 pm
High tide - 1.49m
Times shown in spot-local time.

Strike Score Breakdown

11
Poor
Components
Swell Direction0/25
Swell Size5/25
Swell Period25/25
Wind1/25
Raw Score31/100
Adjustments
🌊💨 Windswell-3
🌊 Tide+3
💨 Gusty Wind-5
⚠️ Weak Component-15
🚫 Undersized Capmax 64
Adjusted Score11/100
Confidence
Multiplier×1.00
Final Score11
🌊 Mostly in the tide window

Plan Your Strike

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

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Swell Requirements

Optimal direction
SSW (212°)
Direction range
195° - 230°
Size range
1.2m - 2.4m
Ideal size
1.7m - 2.1m
Height multiplier
0.92×
Ideal period
14s+

Wind Requirements

Optimal direction
NNE (22°)
Offshore range
352° - 52°

Tide Requirements

Optimal tide
mid
Optimal range
0.5m - 1.5m

Water temp

28°C

Wetsuit

Boardshorts / Rashguard

Difficulty

6/10

Crowd level

4/10

Frequently Asked Questions

What tide is best at Kolbano?

The Kolbano profile favors mid tide, ideally between 0.5m 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 Kolbano?

The Kolbano profile uses wind from NNE (22°) as its preferred direction, with an offshore range of 352° to 52°. 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 Kolbano?

The Kolbano scoring profile favors swell from SSW (195° to 230°), a swell-height range of 1.2m to 2.4m, 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 Kolbano?

The main season at Kolbano is Apr-Oct. A secondary window runs Nov, Dec, Jan, Feb, Mar. Best Apr-Oct (dry season, SE trades offshore). Swells year-round but wet season brings onshore winds.

How do I get to Kolbano?

The spot profile lists KOE as a nearby airport. The estimated road transfer is 120 minutes.

What kind of wave is Kolbano?

Kolbano is a reef break, a left-hander. Difficulty is rated 6/10.

Best Season

Peak: Apr-Oct

Secondary: Nov, Dec, Jan, Feb, Mar

Best Apr-Oct (dry season, SE trades offshore). Swells year-round but wet season brings onshore winds.

Getting There

Airport
KOE
Drive time
120 min
Data quality
community

Strike Log

Community Discussion