Climate, temperatures and weather in Ko Samui
The best time to go to Ko Samui
The weather is warm all year round. Average temperatures go from 29 ° (january) to 33 ° (may). Sea temperature is Pleasant all year round! It ranges from 26° to 28°. The rainiest months are: december, october and november. We recommende the month of january, february, december, to visit Ko Samui.
| Jan | Feb | March | April | May | June | Jul | August | Sept | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Beach and Sun |  | | | |||||||||
| Diving | | | | |
Temperatures Ko Samui
| Jan | Feb | March | April | May | June | Jul | August | Sept | Oct | nov. | dec. | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min temperature | 24° | 25° | 25° | 26° | 26° | 25° | 25° | 25° | 25° | 24° | 24° | 24° |
| Max temperature | 29° | 29° | 31° | 32° | 33° | 32° | 32° | 32° | 32° | 30° | 30° | 29° |
| Sea temperature | 26° | 27° | 27° | 28° | 28° | 28° | 28° | 28° | 28° | 27° | 27° | 27° |
Sunshine
Rainfall
Wind
The weather month by month in Ko Samui
Weather Ko Samui in January
Sea: 26 °
| 11 d/month | 9 d/month | 6 d/month | 5 d/month |
In January, in Ko Samui, Minimum temperatures vary between 24 in the morning and 29 in the afternoon. Temperatures are hot. The average rainfall is around 71 inches, for 17 days without rain.
Check the weather over the last 5 years for the dates of your stay
Weather history day by day
Weather Ko Samui in February
Sea: 27 °
| 11 d/month | 8 d/month | 7 d/month | 1 day | 1 day |
In February, in Ko Samui, Minimum temperatures vary between 25 in the morning and 29 in the afternoon. Temperatures are hot. The average rainfall is around 50 inches, for 23 days without rain.
Check the weather over the last 5 years for the dates of your stay
Weather history day by day
Weather Ko Samui in March
Sea: 27 °
| 16 d/month | 6 d/month | 6 d/month | 2 d/month | 1 day |
In March, in Ko Samui, Minimum temperatures vary between 25 in the morning and 31 in the afternoon. Températures are really hot. The average rainfall is around 68 inches, for 23 days without rain.
Check the weather over the last 5 years for the dates of your stay
Weather history day by day
Weather Ko Samui in April
Sea: 28 °
| 18 d/month | 5 d/month | 4 d/month | 3 d/month |
In April, in Ko Samui, Minimum temperatures vary between 26 in the morning and 32 in the afternoon. Températures are really hot. The average rainfall is around 72 inches, for 24 days without rain.
Check the weather over the last 5 years for the dates of your stay
Weather history day by day
Weather Ko Samui in May
Sea: 28 °
| 19 d/month | 4 d/month | 4 d/month | 3 d/month | 1 day |
In May, in Ko Samui, Minimum temperatures vary between 26 in the morning and 33 in the afternoon. Températures are really hot. The average rainfall is around 127 inches, for 24 days without rain.
Check the weather over the last 5 years for the dates of your stay
Weather history day by day
Weather Ko Samui in June
Sea: 28 °
| 12 d/month | 9 d/month | 6 d/month | 2 d/month | 1 day |
In June, in Ko Samui, Minimum temperatures vary between 25 in the morning and 32 in the afternoon. Températures are really hot. The average rainfall is around 135 inches, for 23 days without rain.
Check the weather over the last 5 years for the dates of your stay
Weather history day by day
Weather Ko Samui in July
Sea: 28 °
| 11 d/month | 11 d/month | 5 d/month | 3 d/month | 1 day |
In July, in Ko Samui, Minimum temperatures vary between 25 in the morning and 32 in the afternoon. Températures are really hot. The average rainfall is around 92 inches, for 23 days without rain.
Check the weather over the last 5 years for the dates of your stay
Weather history day by day
Weather Ko Samui in August
Sea: 28 °
| 13 d/month | 8 d/month | 6 d/month | 3 d/month | 1 day |
In August, in Ko Samui, Minimum temperatures vary between 25 in the morning and 32 in the afternoon. Températures are really hot. The average rainfall is around 110 inches, for 22 days without rain.
Check the weather over the last 5 years for the dates of your stay
Weather history day by day
Weather Ko Samui in September
Sea: 28 °
| 10 d/month | 8 d/month | 7 d/month | 4 d/month | 1 day |
In September, in Ko Samui, Minimum temperatures vary between 25 in the morning and 32 in the afternoon. Températures are really hot. The average rainfall is around 123 inches, for 20 days without rain.
Check the weather over the last 5 years for the dates of your stay
Weather history day by day
Weather Ko Samui in October
Sea: 27 °
| 11 d/month | 7 d/month | 7 d/month | 5 d/month | 1 day |
In October, in Ko Samui, Minimum temperatures vary between 24 in the morning and 30 in the afternoon. The average rainfall is around 305 inches, for 17 days without rain.
Check the weather over the last 5 years for the dates of your stay
Weather history day by day
Weather Ko Samui in November
Sea: 27 °
| 11 d/month | 9 d/month | 7 d/month | 3 d/month |
In November, in Ko Samui, Minimum temperatures vary between 24 in the morning and 30 in the afternoon. The average rainfall is around 423 inches, for 11 days without rain.
Check the weather over the last 5 years for the dates of your stay
Weather history day by day
Weather Ko Samui in December
Sea: 27 °
| 10 d/month | 8 d/month | 6 d/month | 6 d/month | 1 day |
In December, in Ko Samui, Minimum temperatures vary between 24 in the morning and 29 in the afternoon. Temperatures are hot. The average rainfall is around 166 inches, for 15 days without rain.
Check the weather over the last 5 years for the dates of your stay
Weather history day by day
Influx of tourists
Temperature and climate in:
Ayutthaya | Ban Bang Bao | Bangkok | Chiang Mai | Chiang Rai | Chiang Saen | Chon Buri | Chumphon | Hua Hin | Kamphaeng Phet | Kanchanaburi | Ko Pha-ngan | Ko Phi | Ko Samui | Ko Similan | Krabi | Lamduan | Mae Chan | Pattani | Pattaya | Phetchaburi | Phi Phi Islands | Phuket | Si Satchanalai | Sukhothai Thani | Surat Thani | Surin | That Phanom | Trang |