Semau Island surf

Semau Island

Intermediate
Reef break · Moderate · Best: May–October · All tides
Working best in Timor now Savu Island Reefs Epic · 1.6m @ 13s View →
Conditions right now
Poor–Fair
Wave
0.8m
Swell
0.6m
5s · SE
Period
5s
Wind
18 km/h
E · gust 29
Onshore
Water
28°C
Air
27°C

Surf report

Tide falling · Low 1:00 AM 0.1m
Time Surf Swell Wind Tide
6 AM 0.7 m
0.5m 9s SE
16 km/h on
1.4m
9 AM 0.7 m
0.5m 9s SE
18 km/h on
1.1m
12 PM 0.8 m
0.5m 10s SSE
12 km/h off
-0.0m
3 PM 0.8 m
0.4m 12s SW
13 km/h off
-0.3m
6 PM 0.9 m
0.5m 10s SSW
5 km/h cross
0.5m
Best session today
3 PM–5 PM
Offshore 0.4m swell @ 12s

Next 24 hours

Wave Swell
0.0 0.8 1.5 12 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM

Wind

Speed Gusts (km/h)
0 30 60 12 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM

Tide

Low 1:00 AM · 0.1m High 7:00 AM · 1.5m Low 2:00 PM · -0.5m High 8:00 PM · 1.0m
L 1 AM H 7 AM L 2 PM H 8 PM L 2 AM H 8 AM L 3 PM H 9 PM 12 AM6 AM12 PM6 PM12 AM6 AM12 PM6 PM

7-day outlook

Best days
Fri, Jun 12 Best
0.7–0.9m
Sat, Jun 13
0.7–0.8m
Sun, Jun 14
0.6–0.8m
Mon, Jun 15
0.6–0.7m
Tue, Jun 16
0.5–0.5m
Wed, Jun 17
0.4–0.6m
Thu, Jun 18
0.4–0.6m

Hourly detail

Show next 24h
Time Wave Swell Period Wind Tide
12 AM 0.8m 0.6m SE 5s 18 E on 0.1m
1 AM 0.8m 0.6m SE 5s 19 E on 0.1m
2 AM 0.8m 0.6m SE 6s 17 E on 0.2m
3 AM 0.8m 0.6m SE 7s 16 E on 0.5m
4 AM 0.7m 0.6m SE 8s 15 E on 0.8m
5 AM 0.7m 0.6m SE 9s 17 ESE on 1.1m
6 AM 0.7m 0.5m SE 9s 16 ESE on 1.4m
7 AM 0.7m 0.5m SE 9s 16 ESE on 1.5m
8 AM 0.7m 0.5m SE 9s 17 E on 1.4m
9 AM 0.7m 0.5m SE 9s 18 E on 1.1m
10 AM 0.8m 0.5m SE 9s 16 E on 0.8m
11 AM 0.8m 0.5m ESE 9s 14 ENE on 0.4m
12 PM 0.8m 0.5m SSE 10s 12 N off -0.0m
1 PM 0.8m 0.4m SSW 11s 15 NNW off -0.3m
2 PM 0.8m 0.4m SW 12s 10 NNW cross -0.5m
3 PM 0.8m 0.4m SW 12s 13 NNW cross -0.3m
4 PM 0.9m 0.4m SW 12s 10 NNW cross -0.1m
5 PM 0.9m 0.4m SW 11s 8 N cross 0.2m
6 PM 0.9m 0.5m SSW 10s 5 NE off 0.5m
7 PM 0.9m 0.5m SSE 7s 11 E cross 0.8m
8 PM 0.8m 0.5m SE 6s 15 E on 1.0m
9 PM 0.8m 0.5m SE 5s 16 E on 0.9m
10 PM 0.8m 0.5m SE 5s 16 E on 0.8m
11 PM 0.8m 0.6m SE 5s 16 ESE on 0.6m

About Semau Island

Semau Island, a short crossing from Kupang, offers approachable reef breaks that are a step up from the beach without being overly intimidating. The waves tend to be moderately sized and relatively predictable, giving intermediate surfers room to develop their reef skills and tube-reading in a relaxed setting. The island has a laid-back pace and the water is warm and clear year-round. It's a solid option for surfers ready to graduate from sand-bottom waves and explore Timor's quieter coastline.

Local knowledge

Hazards

The reef is shallow at low tide with sharp coral and scattered sea urchins — reef booties are strongly recommended and wipeouts should be treated with respect. A moderate channel current can push you down the reef on bigger swells, so pick a clear exit point before paddling out. Boat traffic from the Kupang crossing lane is a background hazard; stay aware when paddling out wide.

Getting there

Take a short boat charter or local ferry from Tenau Harbour or the Kupang waterfront across the Semau Strait (roughly 20–30 minutes). Land at the village on the north side of the island and ask locals to point you toward the reef — there's no formal surf infrastructure, so a local guide or knowledgeable boat captain is a real asset for finding the best entry channel. Enter and exit via the deeper water channel to the side of the breaking wave; avoid scrambling directly over dry reef.

Board

A versatile shortboard or a mid-length funboard (7'0"–7'6") covers most conditions here — the waves are moderate and forgiving enough for progression without demanding a specialist shape. On smaller, mushier days a fish or hybrid will help generate speed; if a larger south swell pushes through, step up to a slightly fuller shortboard with extra volume for confidence on the reef.

Localism

mellow — relaxed vibe.

Where to go now

Semau Island vs. nearby, live
Spot Surf Swell Wind Now
Semau Island
this spot
0.8m
0.6m 5s
18 on
Poor–Fair
10 km away
1.0m
0.7m 4s
19 on
Fair
11 km away
1.0m
0.6m 4s
22 on
Poor–Fair
14 km away
0.9m
0.7m 10s
22 off
Fair

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Surfing in Timor

Full Timor surf guide →

Timor sits at the far southeastern end of the Indonesian archipelago, in the province of Nusa Tenggara Timur (NTT), sharing the island with the independent nation of Timor-Leste. For surfers, it's the gritty, frontier alternative to Bali's polish — a place where you trade comfort and crowds for empty line-ups, raw landscapes and genuine exploration.

✈️Getting there

The gateway is Kupang's El Tari Airport (KOE), with regular domestic flights from Bali (Denpasar) — around 1.5 hours — and connections via Jakarta, Surabaya and Labuan Bajo. Some smaller carriers link Kupang to the outer islands.

🛵Getting around

On Timor itself, scooter and motorbike rental is the most flexible way to reach spots like Tablolong, Oetune and Kolbano — though Kolbano is a serious drive (several hours east of Kupang). Cars with a driver are widely available in Kupang and worth it for longer hauls or if you're hauling boards and gear.

🌤️Climate & season

Timor has one of the most pronounced dry seasons in Indonesia, sitting in a rain-shadowed, savanna-like corner of NTT. The dry season runs roughly May to October — and this is also prime surf time, when consistent southeast trade winds groom the swells and rainfall is minimal.