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Where to go in September

Well-known places at their most comfortable in the month you choose: mild days and little rain, from twenty years of weather averages. Typical weather, not a forecast, and never a place under a travel advisory.

6 of 7 well-known places suit September. 1 more would suit it but is left out because of a Level 3 or 4 travel advisory.

Places for September

  1. Number 1

    Quito

    Ecuador

    Comfort 99 out of 100

    Pleasant

    Typical high / low
    24° / 12°
    Rain in the month
    38 mm
    Open brief for Quito

  2. Number 2

    Rio de Janeiro

    Brazil

    Comfort 95 out of 100

    Warm

    Typical high / low
    28° / 15°
    Rain in the month
    61 mm
    Open brief for Rio de Janeiro

  3. Number 3

    Santiago

    Chile

    Comfort 93 out of 100

    Pleasant

    Typical high / low
    18° / 4°
    Rain in the month
    13 mm
    Open brief for Santiago

  4. Number 4

    Lima

    Peru

    Comfort 92 out of 100

    Pleasant

    Typical high / low
    17° / 16°
    Rain in the month
    1 mm
    Open brief for Lima

  5. Number 5

    Cusco

    Peru

    Comfort 84 out of 100

    Cool

    Typical high / low
    15° / 3°
    Rain in the month
    18 mm
    Open brief for Cusco

  6. Number 6

    Buenos Aires

    Argentina

    Comfort 83 out of 100

    Pleasant

    Typical high / low
    17° / 12°
    Rain in the month
    83 mm
    Open brief for Buenos Aires

Places are ranked by the same comfort rule as the Best time of year card: the typical daytime high (most comfortable at 20 to 28°C) and the typical rainfall (most comfortable under 1 mm a day), averaged over 2001–2020. A place is listed only when its month is comfortable (a comfort of 70 or more, about a mild day with little rain). It is a short list of well-known places, not every place; crowds, prices, humidity and festivals are not included, and a mountain or coast can differ from its half-degree grid cell. Not a forecast. A place under a Level 3 or 4 travel advisory is never listed.

NASA POWER climatology (public domain), 2001–2020. Read on 2026-10-08. Search for any other place above its brief to see its own best time of year.