The Best time to visit Koh Phangan, Thailand

Heading to Koh Phangan? We share the best time to visit Koh Phangan by month, including the weather in Koh Phangan & the high and low seasons.

Koh Phangan is a beautiful destination in Thailand, but deciding when to visit Koh Phangan can be a challenge. We share the best times to visit the tropical island and talk through the pros and cons of each month. 

Best time to visit Koh Phangan by month

January – This is high season in Koh Phangan, so you can expect many visitors during this time but not as many as in December and August. Hotels prices are at their highest during this month too. 

February – This is high season in Koh Phangan but hotel prices begin to drop in price slightly. This is also the driest month, with only 85mm of rainfall, making it the best month to visit if you are looking for great weather. 

March – This is the low season in Koh Phangan, with fewer tourists than average but prices are still fairly high. Rain begins to increase slightly during this month, with around 195mm rain fall occurring this month. 

April – This is also low season in Koh Phangan but be aware of the Songkran Holidays when many locals will travel around the country. This increases the prices of domestic flights as well as hotel rates. Temperatures begin to hit 30°C and rainfall increases to 196mm. 

May – This is a very low season in Koh Phangan with much fewer tourists than other times of the year. As such, hotel prices are lower and luxury hotels have great offers. Although this is a quieter month, it is also a wet and humid month; temperatures hit 31°C and you can expect around 200mm of rainfall. 

June  – This is also a very low season in Koh Phangan with cheaper hotel rates available. Rainfall increases to around 260mm.

July – This is the high season in Koh Phangan, with hotel prices rising with the demand. Rainfall is slightly less than in June, falling to around 230mm. 

August – Along with December, this is peak season in Koh Phangan, with many visitors coming to the island during the school holidays. Prices rise accordingly. Rainfall sits around 210mm. 

September – Crowds drop considerably in September, making this a great month to visit. Prices of hotels also come down and hotels tend to offer great deals at this time too. 

October – This is a very low season in Koh Phangan, with very few tourists around but hotel prices only drop slightly from September. This is one of the wettest months in Koh Phangan, with around 270mm of rainfall. 

November – This is also a very low season and hotel prices continue to drop, making November a fantastic time to visit Koh Phangan if you are traveling on a budget. However, this is the wettest month of the year, seeing up to 552mm of rain. 

December – This is peak season in Koh Phangan, welcoming the most tourists during this month. On average, prices are more expensive during this month compared to other months. The rain begins to stop in December, with an average of 337mm a month. 

Quick notes on when to visit Koh Phangan

• The weather is hot all year round in Koh Phangan
• The rainiest months are September to November. 
• The sea is warm enough to swim in all year round. 
• April and May are the hottest months but changes in temperatures are small. 
• If you aren’t interested in partying, avoid visiting Koh Phangan during the full moon or half-moon parties, as the island can get crowded and expensive during this time. 

Weather on Koh Phangan

Koh Phangan enjoys a tropical climate, meaning it’s warm and humid all year round, with temperatures typically ranging between 25°C and 32°C. While you can visit at any time of year, the island’s weather is shaped by two main seasons: dry and wet.

The best time to visit is generally from December to March, when you’ll find plenty of sunshine, lower humidity, and calmer seas—perfect for beach days and boat trips. April to June can be extremely hot, with temperatures rising and little rainfall, making it ideal for sun lovers but sometimes uncomfortable for sightseeing.

Unlike many other Thai islands, Koh Phangan’s rainy season peaks later, usually between October and December. During this time, heavy tropical showers and occasional storms are common, and ferry schedules can sometimes be affected. However, rain often comes in short bursts rather than lasting all day, and the island is much quieter with lush green scenery.

If you’re planning your trip around the famous Full Moon Party, it’s worth checking both the party dates and the weather forecast, as conditions can vary throughout the year.

Overall, Koh Phangan is a year-round destination—just be prepared for heat, occasional rain, and plenty of sunshine no matter when you visit.

What is the best time to visit Koh Phangan? 

n our opinion, the best time to visit Koh Phangan is between December to March. The rainy season has finished and the April heat hasn’t arrived. December and January are the busiest months and many young travelers head here for the parties but visiting in February or March can offer a quieter scene and cheaper hotel prices.

Best time to visit Koh Phangan by month Summary

Month	Weather	Crowds	Prices	Overall Verdict
January	Sunny & dry	High	High	⭐ Best time to visit
February	Sunny & dry	High	High	⭐ Best time to visit
March	Mostly sunny	Medium	Medium–High	⭐ Great time to visit
April	Very hot & dry	Medium	Medium	👍 Good (very hot)
May	Hot, some rain	Low–Medium	Medium	👍 Good value
June	Warm, occasional rain	Low–Medium	Medium	👍 Good value
July	Warm, some showers	Medium	Medium	👍 Decent time
August	Warm, some showers	Medium	Medium	👍 Decent time
September	Increasing rain	Low	Low	⚠️ Mixed weather
October	Rainy	Low	Low	❌ Not ideal
November	Wettest month	Low	Low	❌ Avoid if possible
December	Improving weather	High (holidays)	High	👍 Good, especially late December

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