When to go · Ko Sire
Ko Sire in September
Avoid month. Outside the best window (check). Across Thailand: Wettest month in Bangkok and on the Andaman coast; flooding in low areas. Only for low prices.
Key facts
- Verdict
- Avoid
- Temperature
- 31°C (88°F)88°F (31°C) / 24°C (75°F)75°F (24°C)
- average high / low
- Rain days
- 21
- Crowds
- Low
- Thailand overall
- Prices
- Low
- Thailand overall
Verdict
Outside the best window (check). Across Thailand: Wettest month in Bangkok and on the Andaman coast; flooding in low areas. Only for low prices.
Is another month better than September?
September is rated avoid. These months rate higher:
- NovemberGoodOutside the best window (check). Across Thailand: Cool season begins; Loy Krathong and Yi Peng fill Chiang Mai; the Gulf is wet, the Andaman dries out.
- DecemberGoodOutside the best window (check). Across Thailand: Peak season: dry except the Gulf in early December; 20 Dec – 5 Jan prices are the year's highest.
- JanuaryGoodOutside the best window (check). Across Thailand: Cool and dry nearly everywhere: the easiest month; book islands and Chiang Mai early.
- FebruaryGoodOutside the best window (check). Across Thailand: Dry and warming; the north starts to haze late in the month — go south.
Weather in September
- Ko SireHighs around 31 °C (88 °F), lows around 24 °C (75 °F), rain on about 21 daysHighs around 88 °F (31 °C), lows around 75 °F (24 °C), rain on about 21 days
Crowds and prices
- Crowds · Thailand overall
- Low
- Prices · Thailand overall
- Low
Thailand overall: Wettest month in Bangkok and on the Andaman coast; flooding in low areas. Only for low prices.
Compare two months
Weather, crowds and prices for any two months in Ko Sire, side by side.
Verdict
Sep: Avoid
Jan: Good (better)
Daytime high
Sep: 31 °C (88 °F)88 °F (31 °C)
Jan: 32 °C (90 °F)90 °F (32 °C)
Night low
Sep: 24 °C (75 °F)75 °F (24 °C)
Jan: 23 °C (73 °F)73 °F (23 °C)
Rain days
Sep: 21
Jan: 4 (better)
Crowds
Sep: Low
Jan: High
Prices
Sep: Low
Jan: High
Festivals listed
Sep: 0
Jan: 0
September: Outside the best window (check). Across Thailand: Wettest month in Bangkok and on the Andaman coast; flooding in low areas. Only for low prices.
January: Outside the best window (check). Across Thailand: Cool and dry nearly everywhere: the easiest month; book islands and Chiang Mai early.
Ko Sire: figures are long-term averages from this guide, not a forecast.
What to pack
- Light, breathable clothes, a sun hat and sunscreen
- A rain jacket or umbrella and shoes that dry fast