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When to go · Ko Sire

Ko Sire, month by month

Good months for Ko Sire: Jan, Feb, Nov, Dec. Months to avoid: Sep.

Month by month

  1. JanuaryGoodOutside the best window (check). Across Thailand: Cool and dry nearly everywhere: the easiest month; book islands and Chiang Mai early.32 °C (90 °F) / 23 °C (73 °F), 4 rain daysCrowds: High
  2. FebruaryGoodOutside the best window (check). Across Thailand: Dry and warming; the north starts to haze late in the month — go south.33 °C (91 °F) / 23 °C (73 °F), 3 rain daysCrowds: High
  3. MarchMixedOutside the best window (check). Across Thailand: Hot; northern burning season makes Chiang Mai air bad. Beaches both coasts are good.34 °C (93 °F) / 24 °C (75 °F), 6 rain daysCrowds: Medium
  4. AprilMixedOutside the best window (check). Across Thailand: Hottest month; Songkran (13–15 Apr) soaks everyone and fills transport — plan around it or join in.33 °C (91 °F) / 25 °C (77 °F), 11 rain daysCrowds: High · 1 festival or holiday
  5. MayMixedOutside the best window (check). Across Thailand: Heat plus first rains; Andaman seas turn rough; the Gulf islands are the pick.32 °C (90 °F) / 25 °C (77 °F), 18 rain daysCrowds: Low
  6. JuneMixedOutside the best window (check). Across Thailand: Rainy season on the Andaman side; Gulf islands and Bangkok workable with afternoon storms.32 °C (90 °F) / 25 °C (77 °F), 18 rain daysCrowds: Low
  7. JulyMixedOutside the best window (check). Across Thailand: Western summer holidays lift Gulf island prices; the west coast stays rough.31 °C (88 °F) / 25 °C (77 °F), 19 rain daysCrowds: Medium
  8. AugustMixedOutside the best window (check). Across Thailand: Same pattern as July: Samui, Phangan and Tao are the dry choice.31 °C (88 °F) / 25 °C (77 °F), 19 rain daysCrowds: Medium
  9. SeptemberAvoidOutside the best window (check). Across Thailand: Wettest month in Bangkok and on the Andaman coast; flooding in low areas. Only for low prices.31 °C (88 °F) / 24 °C (75 °F), 21 rain daysCrowds: Low
  10. OctoberMixedOutside the best window (check). Across Thailand: Rain eases in Bangkok and the north late in the month; the Gulf islands start their wet season.31 °C (88 °F) / 24 °C (75 °F), 21 rain daysCrowds: Low
  11. 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.31 °C (88 °F) / 24 °C (75 °F), 14 rain daysCrowds: Medium
  12. 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.32 °C (90 °F) / 23 °C (73 °F), 7 rain daysCrowds: High

Compare two months

Weather, crowds and prices for any two months in Ko Sire, side by side.

  • Verdict

    Jan: Good

    Feb: Good

  • Daytime high

    Jan: 32 °C (90 °F)

    Feb: 33 °C (91 °F)

  • Night low

    Jan: 23 °C (73 °F)

    Feb: 23 °C (73 °F)

  • Rain days

    Jan: 4

    Feb: 3 (better)

  • Crowds

    Jan: High

    Feb: High

  • Prices

    Jan: High

    Feb: High

  • Festivals listed

    Jan: 0

    Feb: 0

January: Outside the best window (check). Across Thailand: Cool and dry nearly everywhere: the easiest month; book islands and Chiang Mai early.

February: Outside the best window (check). Across Thailand: Dry and warming; the north starts to haze late in the month — go south.

Ko Sire: figures are long-term averages from this guide, not a forecast.