Surf forecastStatisticsHistorical report

Turtles seasonal overview

Best Surf Season (May - September)

The heart of the dry season brings the Indian Ocean to life with a powerful pulse of long-period groundswell. During these months, the trade winds lock in from the east-northeast quadrant, blowing strong and consistently offshore – grooming the waves into pristine, hollow walls. Average swell heights climb to 2.0-2.2m with periods of 14s, originating mostly from the S-SSW direction. While the ideal swell angle for Turtles is SW-W, the sheer size and energy of these southerly pulses, combined with glassy conditions, deliver some of the most surfable and exciting waves of the year. Consistent offshore winds dominate 56 to 82 percent of the time, making this the prime window for dedicated surf trips.

Fair Surf Season (March, April, October, November)

These transition months straddle the shift between monsoon regimes and offer a mixed bag of conditions. March and December see the tail end of the wet season, with onshore westerly winds still frequent, but the swell direction often swings into the optimal SW-W band, giving high-quality, if less frequent, clean waves. April, October, and November are characterized by a strengthening or fading easterly flow, creating many days of offshore wind – especially in November – but the swell direction tends to favor S-SSW, which is less direct. Wave heights average 1.6-1.9m with long periods, so when the swell angle lines up with a clear wind window, the surf can be world-class.

Low Surf Season (December - February)

The northwest monsoon season sets up a challenging environment for Turtles. Persistent onshore winds from the NW-WNW dominate the wind rose, blowing over 60% of the time, which chops up the wave faces. Swell is still present – mostly from the SSW-SW range with average heights of 1.6-1.7m and periods of 12s – but the wind-ruined conditions severely limit quality. Ideal offshore days account for only 17-19% of the time. This is the quietest period for surf, best suited for those chasing the rare clean window or happy with marginal, windy waves.

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Conditions at Turtles in May

May: Peak Dry Season Surge

May is a standout month with 82% ideal wind – the highest of the year. The trade winds blow strongly from ESE (38.8%) and SE (25.7%), providing near-daily offshore conditions that turn the ocean into a surfer’s playground. Swell height jumps to 1.9m with a powerful 13.9s period. The swell is predominantly from S (43.7%) and SSW (36.0%), with a notable increase in the 1.5-2.5m range – over 60% of waves fall in these pumping categories. Although the angle is more southerly than optimal, the sheer consistency and power, paired with glassy offshore winds, create world-class waves that barrel over the reef. This is the beginning of the prime season.

Average Spot conditions at Turtles in May

Swell history for May

0 - 0.5
0.5 - 1
1 - 1.5
1.5 - 2.0
2.0 - 2.5
> 2.5 m

Wind history for May

0 - 10
10 - 20
20 - 30
30 - 40
40 - 50
> 50 km/h

Swell quality

Analyze the groundswell consistency at Turtles during May. Based on historical data, there is a % probability of groundswell occurring this month. The chart below provides a detailed breakdown of the average wave height distribution, offering deep insights into the swell quality and surf potential you can expect at Turtles for your next trip in May.

Ground swell

Ground swell by size

Wind conditions

Evaluate the wind and swell alignment at Turtles for May. Our analysis shows that favorable offshore or side-shore winds coincide with surfable swell approximately % of the time. The accompanying graph illustrates the average size distribution of waves during these optimal wind windows at Turtles.

Swell with good wind

Swell with good wind by size