Koh Samui in June
Calm off-season
By Daan · Last reviewed October 2026
The short answer
June is a good time to visit Koh Samui.
June is calmer, while the west coast of Thailand gets the monsoon.
June in detail
What June actually feels like
- Weather
- 25–33°C
- Hot, around 33°C, with short showers.
- Crowds
- Moderate
- Quieter.
- Prices
- $$$
- Lower rates.
+Quiet beaches.
–Humid, with showers.
My tip for June
Samui is drier than Phuket in June.
- Beaches
- Spas
How June compares
Against the other eleven months
4th of 12 overall in Koh Samui, 5th for weather, 5th for space, 5th for value. The emptiest month is November; the best value is November.
See all twelve months for Koh SamuiNot set on June?
Even stronger months in Koh Samui
Weather
Weather in Koh Samui in June
In June Koh Samui averages a high of 33°C (91°F) and a low of 25°C (77°F), with about 134 mm of rain or snow over 10 wet days. The warmest month is May (around 33°C) and the coolest is January (around 29°C); the wettest month is November.
- Average high
- 33°C
- 91°F
- Average low
- 25°C
- 77°F
- Precipitation
- 134 mm
- Wet days
- 10
Climate data: World Meteorological Organization (Ko Samui, 1991–2020). Temperatures are averages of daily highs and lows.
Quick answers
Koh Samui in June: the questions people ask
- Is June a good time to visit Koh Samui?
- June is a good time to visit Koh Samui. It ranks 4 of 12 months in Koh Samui overall (5 for weather, 5 for space, 5 for value). The main upside: Quiet beaches. The main downside: Humid, with showers.
- What is the weather like in Koh Samui in June?
- Average highs are around 33°C and lows around 25°C. Expect about 134 mm of rain or snow over roughly 10 wet days. Hot, around 33°C, with short showers. For comparison, the warmest month is May (around 33°C) and the coolest is January (around 29°C).
- Is Koh Samui crowded in June?
- Crowds are moderate. Quieter. The quietest month is November.
- How expensive is Koh Samui in June?
- Prices are at level 3 of 5 ($$$). Lower rates. The best-value month is November.
- When is the best time to visit Koh Samui?
- In the CrowdFreeViews month scores, February is the best month overall (June ranks 4 of 12). The quietest month is November and the best value is November.