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
- 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 days90 °F (32 °C) / 73 °F (23 °C), 4 rain daysCrowds: High
- 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 days91 °F (33 °C) / 73 °F (23 °C), 3 rain daysCrowds: High
- 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 days93 °F (34 °C) / 75 °F (24 °C), 6 rain daysCrowds: Medium
- 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 days91 °F (33 °C) / 77 °F (25 °C), 11 rain daysCrowds: High · 1 festival or holiday
- 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 days90 °F (32 °C) / 77 °F (25 °C), 18 rain daysCrowds: Low
- 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 days90 °F (32 °C) / 77 °F (25 °C), 18 rain daysCrowds: Low
- 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 days88 °F (31 °C) / 77 °F (25 °C), 19 rain daysCrowds: Medium
- 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 days88 °F (31 °C) / 77 °F (25 °C), 19 rain daysCrowds: Medium
- 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 days88 °F (31 °C) / 75 °F (24 °C), 21 rain daysCrowds: Low
- 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 days88 °F (31 °C) / 75 °F (24 °C), 21 rain daysCrowds: Low
- 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 days88 °F (31 °C) / 75 °F (24 °C), 14 rain daysCrowds: Medium
- 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 days90 °F (32 °C) / 73 °F (23 °C), 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)90 °F (32 °C)
Feb: 33 °C (91 °F)91 °F (33 °C)
Night low
Jan: 23 °C (73 °F)73 °F (23 °C)
Feb: 23 °C (73 °F)73 °F (23 °C)
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.