Thunders Waves
A consistent hollow left and a great option when everywhere else is small.
Thunders in Sumatra (Mentawi Islands) is an exposed reef break that usually has waves. May-Oct (Dry Season) is the best time of year for waves. Offshore winds are from the north. Most of the surf here comes from groundswells and the best swell direction is from the southwest. A reef breaks left. The waves are rarely busy here and please keep the rocks lined up.

The best time of year for surfing Thunders with consistent clean waves (rideable swell with light / offshore winds) is during Summer and most often the month of December. Clean surfable waves found in 74% of the time in December, while 26% were likely to be blown by the wind. For the remaining 0% of the time it is considered too small by most surfers but may still be OK for beginners and groms at times.
Interactive Thunders surf break location map. View information about nearby surf breaks, their wave consistency and rating compared to other spots in the region. Current swell conditions from local buoys are shown along with live wind speed and direction from nearby weather stations. Click icons on the map for more detail.
The nearest passenger airport to Thunders is Tabing (Padang) Airport (PDG) in Indonesia, which is 246 km (153 miles) away (directly). The second closest airport to Thunders is Padang Kemiling (Bengkulu) Airport (BKS), also in Indonesia, 254 km (158 miles) away.
Source: www.surf-forecast.com