Periscopes
Periscopes is a long, rippable right reef break in East Sumbawa that produces tight barrels over a safe reef platform. The wave works best at high tide and provides a quality alternative to Lakey Peak, offering longer rides with good barrel and turn sections. Its exposure to dry season SE trade winds can cause afternoon blow-out, making morning sessions essential for clean conditions.
Periscopes surf forecast
Model forecast for swell, wind and tide.
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Spot Details
CustomizeCustomize this spotSwell Requirements
- Optimal direction
- SSW (205°)
- Direction range
- 190° - 220°
- Size range
- 0.9m - 2.4m
- Ideal size
- 1.6m - 2m
- Height multiplier
- 0.97×
- Ideal period
- 14s+
Wind Requirements
- Optimal direction
- N (0°)
- Offshore range
- 330° - 30°
Tide Requirements
- Optimal tide
- high
- Optimal range
- 1m - 2m
Water temp
28°C
Wetsuit
Boardshorts / Rashguard
Difficulty
6/10
Crowd level
4/10
Frequently Asked Questions
What tide is best at Periscopes?
The Periscopes profile favors high tide, ideally between 1m and 2m 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 Periscopes?
The Periscopes profile uses wind from N (0°) as its preferred direction, with an offshore range of 330° to 30°. 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 Periscopes?
The Periscopes scoring profile favors swell from SSW (190° to 220°), a swell-height range of 0.9m 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 Periscopes?
The main season at Periscopes 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 Periscopes?
The spot profile lists BMU as a nearby airport. The estimated road transfer is 30 minutes.
What kind of wave is Periscopes?
Periscopes is a reef break, a right-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
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