Guide · Seasons & Locations
Kitesurfing Season in Koh Samui: Best Months & Wind Conditions
Short answer
Koh Samui has two kitesurfing seasons. The main north-east season usually runs from mid-November to March, with the best conditions from December to February at Nahai Beach in Hua Thanon. A second, more variable west and south-west season runs from about May to mid-September at Nathon. October and early November are transition months.
Two wind seasons, two coasts
The wind on Koh Samui follows the monsoons. From roughly November to March the north-east monsoon blows onto the south-east coast, and that is when we teach at Nahai Beach in Hua Thanon. In the middle of the year the wind comes from the west and south-west, and the west coast around Nathon becomes the place to ride.
This guide is based on what Mahalo Watersports has seen while teaching on the island since 2018. It describes typical conditions, not a forecast. Season dates move a little from year to year.
Month-by-month calendar
| Month | Season | Spot | What to expect |
|---|---|---|---|
| January | Peak season | Nahai Beach | Main season – usually very good. |
| February | Peak season | Nahai Beach | Main season – usually very good. |
| March | Late season | Nahai Beach | End of the main season – conditions gradually become less reliable. |
| April | Late season | Nahai Beach | Late north-east / east season. Some years still provide suitable conditions. |
| May | Transition | No main spot | Transition towards the west / south-west season. Conditions can be variable. |
| June | Western season | Nathon | West / south-west season – more variable than the main north-east season. |
| July | Western season | Nathon | West / south-west wind season. |
| August | Western season | Nathon | West / south-west wind season. |
| September | End of season | Nathon | Final part of the season – usually fading around mid-month. |
| October | Transition | No main spot | Transition month – generally not recommended for a dedicated kitesurfing trip. |
| November | Season start | Nahai Beach | The north-east season usually starts around mid-November. |
| December | Peak season | Nahai Beach | Peak season – typically one of the best months for kitesurfing on Koh Samui. |
Typical conditions from local practice. Not an official statistic and not a guarantee for any particular day.
The main season: mid-November to March
The north-east season usually starts around mid-November. In some years it begins a little earlier, in others later. From then until March we ride at Nahai Beach, where the wind usually blows onshore or side-onshore.
December to February: the peak
If you can choose any time of year, choose December, January or February. This is usually the most reliable part of the year, and December is typically one of the best months. The wind is mostly north-east early in the season and turns more easterly in February and March.
March and April: the late season
March is the end of the main season, and conditions gradually become less reliable. April is the late north-east and east season. Some years still give good riding days in April, but it is not something to count on for a short trip.
The western season: about May to mid-September
When the monsoon turns, the wind comes from the west and south-west, and we move lessons to Nathon on the west coast. May is the transition into this season. June, July and August are its main months, and the wind usually fades around mid-September.
The western season is more variable than the main one. Wind often comes with passing fronts and clouds. It can appear quickly and drop again, or stay for several days. There is no fixed best time of day. If you plan to kite in summer, flexible dates help a lot.
Transition months: May and October
May and October sit between the two seasons. In May the wind is changing towards the west and south-west, and conditions can be variable. October is generally not a month we recommend for a dedicated kitesurfing trip: it is a transition period and often rainy. Early November is still changing too, until the north-east season settles.
No wind? Try e-foiling. An e-foil runs on an electric motor and does not need wind, so it can be a good alternative on calm days. See our e-foil beginner's guide.
Planning your dates
- Want the best odds? Come between December and February.
- Coming in March or April? Riding is often still possible, but leave some spare days.
- Coming between June and mid-September? Plan for Nathon and for more variable wind.
- Coming in October? Do not plan a trip only around kitesurfing.
Whatever the month, a flexible schedule gives you the best chance of riding in good conditions. Our guide to planning a kitesurfing holiday explains how to build that flexibility into your trip, and Nahai vs Nathon compares the two spots.
FAQ
What is the best month for kitesurfing in Koh Samui?
December is typically one of the best months. December, January and February together are the peak of the main north-east season, when Mahalo rides at Nahai Beach in Hua Thanon.
Can I kitesurf in Koh Samui in April?
Sometimes. April is the late part of the north-east and east season. Some years still give suitable conditions, others less so. If April is your only option, keep your plans flexible.
Is there wind in Koh Samui in July?
July is part of the west and south-west season, when Mahalo rides at Nathon on the west coast. The wind is more variable than in the main season, so allow extra days.
Should I come to Koh Samui in October for kitesurfing?
We do not recommend planning a trip especially for kitesurfing in October. It is a transition month and often rainy.
Is wind guaranteed during the season?
No. The seasons describe typical conditions from our experience, not a guarantee. Every year is a little different, and even in the best months there are days without suitable wind.
