Ko Sire in April

Outside the best window (check). Across Thailand: Hottest month; Songkran (13–15 Apr) soaks everyone and fills transport — plan around it or join in.

April is rated mixed. 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.

• Ko SireHighs around 33 °C (91 °F), lows around 25 °C (77 °F), rain on about 11 daysHighs around 91 °F (33 °C), lows around 77 °F (25 °C), rain on about 11 days

Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.

• Songkran (Thai New Year) big impact

  13–15 Apr · Thailand

  Nationwide water fights; transport out of Bangkok sells out; many shops close; phones and passports need waterproof bags.

Crowds · Thailand overall

High

Prices · Thailand overall

High

Thailand overall: Hottest month; Songkran (13–15 Apr) soaks everyone and fills transport — plan around it or join in.

High-price month: see what to book ahead.

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

• Light, breathable clothes, a sun hat and sunscreen
• A rain jacket or umbrella and shoes that dry fast

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