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Where to travel in September

These places are at their most comfortable in September — highs of roughly 18–28°C with little rain. Grouped by flight time from Hong Kong; open any for its 14-day forecast and packing advice.

🗓️ Public holidays: 26 Sep 2026 Day following Mid-Autumn Festival, 16 Sep 2027 Day following Mid-Autumn Festival · Leave hacks

Short-haul (under 4.5h)

  • SapporoJapan14–23°C

    💧 122 mm · about 10°C colder than Hong Kong

    👕 Short sleeves with a light long-sleeve or jacket for cool mornings and evenings.

  • BaliIndonesia23–28°C

    💧 78 mm · about 3°C colder than Hong Kong

    👕 Short sleeves, plus a light layer for air-conditioned interiors; humid, so quick-dry fabrics help.

  • BeijingMainland China17–26°C

    💧 71 mm · about 7°C colder than Hong Kong

    👕 Short sleeves, plus a light layer for air-conditioned interiors; big day–night swing, so dress in layers.

  • KathmanduNepal19–24°C

    💧 169 mm · about 7°C colder than Hong Kong

    👕 Short sleeves with a light long-sleeve or jacket for cool mornings and evenings; it's wet, so pack a compact umbrella.

  • JakartaIndonesia25–30°C

    💧 66 mm · about the same as Hong Kong

    👕 T-shirts, shorts and breathable fabrics; sunscreen and water.

  • Xi'anMainland China16–27°C

    💧 125 mm · about 7°C colder than Hong Kong

    👕 Short sleeves, plus a light layer for air-conditioned interiors; big day–night swing, so dress in layers.

  • YogyakartaIndonesia22–30°C

    💧 66 mm · about 2°C colder than Hong Kong

    👕 Short sleeves, plus a light layer for air-conditioned interiors.

  • Patan (Lalitpur)Nepal18–24°C

    💧 169 mm · about 7°C colder than Hong Kong

    👕 Short sleeves with a light long-sleeve or jacket for cool mornings and evenings; it's wet, so pack a compact umbrella.

  • ChengduMainland China20–27°C

    💧 129 mm · about 5°C colder than Hong Kong

    👕 Short sleeves, plus a light layer for air-conditioned interiors.

  • GyeongjuSouth Korea19–24°C

    💧 158 mm · about 6°C colder than Hong Kong

    👕 Short sleeves with a light long-sleeve or jacket for cool mornings and evenings; it's wet, so pack a compact umbrella.

  • IncheonSouth Korea17–25°C

    💧 138 mm · about 8°C colder than Hong Kong

    👕 Short sleeves with a light long-sleeve or jacket for cool mornings and evenings.

  • Nong KhiawLaos23–31°C

    💧 105 mm · about the same as Hong Kong

    👕 T-shirts, shorts and breathable fabrics; sunscreen and water; humid, so quick-dry fabrics help.

  • HiroshimaJapan21–29°C

    💧 161 mm · about 4°C colder than Hong Kong

    👕 Short sleeves, plus a light layer for air-conditioned interiors; it's wet, so pack a compact umbrella.

  • HakodateJapan16–23°C

    💧 120 mm · about 9°C colder than Hong Kong

    👕 Short sleeves with a light long-sleeve or jacket for cool mornings and evenings.

Medium-haul (4.5–9h)

  • SamarkandUzbekistan15–30°C

    💧 2 mm · about 6°C colder than Hong Kong

    👕 Short sleeves, plus a light layer for air-conditioned interiors; big day–night swing, so dress in layers.

  • ColomboSri Lanka25–29°C

    💧 162 mm · about the same as Hong Kong

    👕 Short sleeves, plus a light layer for air-conditioned interiors; it's wet, so pack a compact umbrella; humid, so quick-dry fabrics help.

  • KandySri Lanka21–28°C

    💧 101 mm · about 4°C colder than Hong Kong

    👕 Short sleeves, plus a light layer for air-conditioned interiors; humid, so quick-dry fabrics help.

  • BukharaUzbekistan14–31°C

    💧 0 mm · about 6°C colder than Hong Kong

    👕 T-shirts, shorts and breathable fabrics; sunscreen and water; big day–night swing, so dress in layers.

  • SalalahOman25–30°C

    💧 94 mm · about the same as Hong Kong

    👕 T-shirts, shorts and breathable fabrics; sunscreen and water; humid, so quick-dry fabrics help.

  • KarachiPakistan25–32°C

    💧 21 mm · about the same as Hong Kong

    👕 T-shirts, shorts and breathable fabrics; sunscreen and water.

  • Hunza Valley (Karimabad)Pakistan11–21°C

    💧 11 mm · about 12°C colder than Hong Kong

    👕 Short sleeves with a light long-sleeve or jacket for cool mornings and evenings; big day–night swing, so dress in layers.

  • Addu CityMaldives27–28°C

    💧 159 mm · about the same as Hong Kong

    👕 Short sleeves, plus a light layer for air-conditioned interiors; it's wet, so pack a compact umbrella; humid, so quick-dry fabrics help.

  • Fulhadhoo & Baa AtollMaldives27–28°C

    💧 165 mm · about the same as Hong Kong

    👕 Short sleeves, plus a light layer for air-conditioned interiors; it's wet, so pack a compact umbrella; humid, so quick-dry fabrics help.

  • Jebel AkhdarOman14–29°C

    💧 7 mm · about 7°C colder than Hong Kong

    👕 Short sleeves, plus a light layer for air-conditioned interiors; big day–night swing, so dress in layers.

  • UdaipurIndia21–30°C

    💧 100 mm · about 3°C colder than Hong Kong

    👕 T-shirts, shorts and breathable fabrics; sunscreen and water; big day–night swing, so dress in layers.

  • BengaluruIndia18–27°C

    💧 152 mm · about 6°C colder than Hong Kong

    👕 Short sleeves, plus a light layer for air-conditioned interiors; it's wet, so pack a compact umbrella; humid, so quick-dry fabrics help.

Long-haul (9h+)

  • LondonUnited Kingdom12–21°C

    💧 70 mm · about 12°C colder than Hong Kong

    👕 Short sleeves with a light long-sleeve or jacket for cool mornings and evenings.

  • ParisFrance13–22°C

    💧 72 mm · about 11°C colder than Hong Kong

    👕 Short sleeves with a light long-sleeve or jacket for cool mornings and evenings; big day–night swing, so dress in layers.

  • Buenos AiresARG12–17°C

    💧 83 mm · about 14°C colder than Hong Kong

    👕 Long sleeves with a light jacket or sweater.

  • SydneyAustralia13–19°C

    💧 43 mm · about 12°C colder than Hong Kong

    👕 Long sleeves with a light jacket or sweater.

  • Rio de JaneiroBrazil19–26°C

    💧 69 mm · about 6°C colder than Hong Kong

    👕 Short sleeves, plus a light layer for air-conditioned interiors.

  • TorontoCanada15–21°C

    💧 66 mm · about 10°C colder than Hong Kong

    👕 Short sleeves with a light long-sleeve or jacket for cool mornings and evenings.

  • SantiagoChile9–23°C

    💧 15 mm · about 12°C colder than Hong Kong

    👕 Short sleeves with a light long-sleeve or jacket for cool mornings and evenings; big day–night swing, so dress in layers.

  • BerlinGermany10–21°C

    💧 49 mm · about 13°C colder than Hong Kong

    👕 Short sleeves with a light long-sleeve or jacket for cool mornings and evenings; big day–night swing, so dress in layers.

  • QuitoEcuador5–18°C

    💧 38 mm · about 17°C colder than Hong Kong

    👕 Long sleeves with a light jacket or sweater; big day–night swing, so dress in layers.

  • BarcelonaSpain18–27°C

    💧 59 mm · about 6°C colder than Hong Kong

    👕 Short sleeves, plus a light layer for air-conditioned interiors; big day–night swing, so dress in layers.

  • RomeItaly17–28°C

    💧 70 mm · about 6°C colder than Hong Kong

    👕 Short sleeves, plus a light layer for air-conditioned interiors; big day–night swing, so dress in layers.

  • Port LouisMauritius22–24°C

    💧 24 mm · about 5°C colder than Hong Kong

    👕 Short sleeves with a light long-sleeve or jacket for cool mornings and evenings.

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