Thailand Weather in October: Climate, Travel Tips & Best Destinations
October marks the gradual end of Thailand’s rainy season. The weather remains humid, but sunshine returns more often and temperatures stay pleasantly warm.
General Climate in October
In October, the southwest monsoon slowly fades. Rainfall decreases across most of the country, especially in the North and Central Plains, while the Andaman coast still experiences occasional downpours.
It’s a month of transition: lush landscapes, warm air (26–32°C), and less frequent thunderstorms make for increasingly clear days.
In the South, the pattern reverses — the Gulf of Thailand becomes wetter as the dry season begins to settle on the western coast.
Note – Early cool spells in October: In some years, fresh northern winds mark the early start of the “cool season.” The Thai Meteorological Department may announce unusually early or late cool periods with noticeable drops in nighttime temperatures.
Temperatures, Rainfall & Humidity by Region
Bangkok & Central Thailand
- Temperatures: 25–33°C
- Monthly rainfall: 180–220 mm, mainly early in the month
- Typical day: high ~32°C, low ~25°C, humidity ~75%
- Sunshine becomes more frequent toward the end of October
Northern Thailand (Chiang Mai, Chiang Rai…)
- Temperatures: 22–32°C
- Rainfall: 100–150 mm, mostly during the first half of the month
- Late October brings clearer skies and cooler nights (~20°C)
- Great time for trekking and cultural visits
Andaman Coast (Phuket, Krabi…)
- Temperatures: 24–31°C, rainfall still high at 250–300 mm
- Example: Phuket sees around 21 rainy days, with improving weather after mid-month
- The sea can be rough; swimming is not always recommended
Gulf Islands (Koh Samui, Koh Phangan…)
- Beginning of the wet season: 200–250 mm of rain
- Temperatures around 30–31°C, sea ~29°C
- Thunderstorms become more frequent but usually brief
- Weather conditions gradually worsen until November
Why Visit Thailand in October? Pros & Cons
Highlights
- End of the rainy season: vibrant green landscapes and cleaner air
- Fewer tourists before the high season (November–March)
- Excellent photography conditions — bright skies, green rice fields
- Attractive hotel prices, especially before mid-October
Things to Keep in Mind
- Residual monsoon on the Andaman coast (rough seas possible)
- Occasional showers around the Gulf of Thailand
- Ferry crossings may still face disruptions
Practical Travel Tips for October
- Favor the North (Chiang Mai, Chiang Rai) or Central Thailand (Ayutthaya, Sukhothai) for drier weather
- Avoid long boat transfers on the Andaman coast before mid-October
- Bring a light jacket for cooler evenings in the North
- Pack breathable clothing and a compact umbrella or poncho
- Check local weather forecasts before sea excursions
- Take advantage of low-season deals before prices rise in November
Historical Weather Data (Phuket 2009–2022)
| Year | Avg Temp | Rain (mm) | Rainy Days |
|---|---|---|---|
| 2009–2022 average | ~28°C | ~250–300 mm | 18–22 days |
In Phuket, October averages 28°C, about 280 mm of rain, and nearly 20 rainy days per month.
FAQ – Thailand Weather in October
Is October a good time to visit Thailand?
Yes. October marks the end of the rainy season. Northern and central regions are already drier, while the South remains variable. It’s a good month to visit before peak season begins.
Where to go in Thailand in October?
Head to the North (Chiang Mai, Chiang Rai) and Central Thailand (Bangkok, Ayutthaya, Sukhothai). Gulf islands such as Koh Samui or Koh Phangan are still enjoyable despite a few showers. The Andaman coast (Phuket, Krabi) sees better weather by late October.
Is it hot in October?
Yes, temperatures range from 25–33°C depending on the region. The air remains humid but becomes more comfortable than in mid-summer.
Does it still rain a lot?
Rain decreases, but short showers are still common early in the month, especially in the South. They often fall in the late afternoon and rarely last long.
Can you swim in October?
Yes, but be cautious. The Andaman Sea can be rough, while the Gulf of Thailand offers safer swimming conditions despite more frequent rain.
Where is the sunniest weather?
Northern and Central Thailand enjoy the most sunshine. For beach weather, late October offers improved conditions along the Andaman coast.
What to pack for an October trip?
Bring a light raincoat, breathable clothes, and comfortable shoes. Plan outdoor activities in the morning and stay flexible with the weather.
Are prices lower in October?
Yes. October is still low season, with great discounts on hotels and flights. Prices rise gradually as November approaches.
What festivals take place in October?
Depending on the year, you may experience local festivals, end-of-rainy-season celebrations, or early cool-season events — especially in Northern Thailand.
