Coolcation

    Where it's cool in September

    Salar de Uyuni, Bolivia 18°C · Lake Titicaca, Peru 18°C · Colca Canyon, Peru 16°C. Typical daytime highs in September, using the 2016 to 2025 record.

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    Curated by Hugo · Updated 23 September 2026

    Top 10 destinations in September

    1. 1.Salar de Uyuni, Bolivia

      18°5° daily spread0 rain dayshiking
      Why Salar de Uyuni, Bolivia?

      The historical record averages 18° in September, with a 5° daily-high spread and 0 average rain days.

    2. 2.Lake Titicaca, Peru

      18°5° daily spread6 rain daysculture
      Why Lake Titicaca, Peru?

      The historical record averages 18° in September, with a 5° daily-high spread and 6 average rain days.

    3. 3.Colca Canyon, Peru

      16°5° daily spread8 rain dayshiking
      Why Colca Canyon, Peru?

      The historical record averages 16° in September, with a 5° daily-high spread and 8 average rain days.

    4. 4.Jökulsárlón Glacier Lagoon, Iceland

      11°5° daily spread16 rain dayshiking
      Why Jökulsárlón Glacier Lagoon, Iceland?

      The historical record averages 11° in September, with a 5° daily-high spread and 16 average rain days.

    5. 5.La Paz, Bolivia

      16°7 rain daysculture
      Why La Paz, Bolivia?

      The historical record averages 16° in September, with a 6° daily-high spread and 5 average rain days.

    6. 6.Dublin, Ireland

      17°10 rain daysculture
      Why Dublin, Ireland?

      The historical record averages 17° in September, with a 6° daily-high spread and 10 average rain days.

    7. 7.Margaret River, Australia

      17°11 rain dayscouples
      Why Margaret River, Australia?

      The historical record averages 17° in September, with a 6° daily-high spread and 11 average rain days.

    8. 8.Puerto Varas, Chile

      13°13 rain dayshiking
      Why Puerto Varas, Chile?

      The historical record averages 13° in September, with a 6° daily-high spread and 13 average rain days.

    9. 9.Ketchikan, United States

      15°17 rain dayshiking
      Why Ketchikan, United States?

      The historical record averages 15° in September, with a 6° daily-high spread and 17 average rain days.

    10. 10.Anchorage, United States

      14°13 rain dayshiking
      Why Anchorage, United States?

      The historical record averages 14° in September, with a 7° daily-high spread and 13 average rain days.

    More about September

    A coolcation, on this site, is anywhere with a mean daily high at or below 18°C. September gives you 48 of the 295 curated destinations with a ten-year record this month (of 497 curated in total). The ranking below is by low day-to-day swing, not by which is coldest.

    September opens a wider cool-weather range: Andean altitude, North Atlantic coasts and southern spring. Compare daytime highs with daily-high spread and average rain days. A low temperature does not automatically mean a dry trip.

    September cool with a small daily-high spread: Margaret River, averaging 17° with a p10 to p90 width of 6 degrees.
    Mirror reflections on the Salar de Uyuni salt flats
    Salar de Uyuni, Bolivia
    Karla Robinson / Unsplash License
    Icebergs drifting through Jokulsarlon glacier lagoon
    Jokulsarlon, Iceland
    rolf gelpke / Unsplash License
    The Ha'penny Bridge over the River Liffey in Dublin
    Ha'penny Bridge, Dublin
    Gregory DALLEAU / Unsplash License
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    Displaying historical averages for the month of September.

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    Average temperatures by destination

    Showing 51 of 80 destinations

    DestinationCountryAvg highSwingsRain days
    SvalbardSvalbard and Jan Mayen2°12° width14
    IlulissatGreenland4°9° width9
    LongyearbyenNorway5°9° width14
    IqaluitCanada6°8° width8
    NuukGreenland7°8° width12
    UshuaiaArgentina9°6° width11
    QaqortoqGreenland9°8° width10
    Abisko National ParkSweden10°11° width12
    High TatrasSlovakia11°14° width13
    Jökulsárlón Glacier LagoonIceland11°5° width16
    San Carlos de BarilocheArgentina11°10° width6
    Kanas LakeChina10°14° width12
    TromsøNorway12°10° width14
    Bran CastleRomania13°13° width10
    ChurchillCanada13°15° width8
    FairbanksUnited States13°12° width7
    Puerto VarasChile13°6° width13
    QueenstownNew Zealand12°10° width12
    AnchorageUnited States14°7° width13
    Valley of Geysers, KamchatkaRussia14°--
    HobartAustralia15°8° width7
    KetchikanUnited States15°6° width17
    Kizhi IslandRussia15°12° width11
    Lake BaikalRussia15°8° width9
    Twelve ApostlesAustralia15°7° width14
    BergenNorway16°8° width18
    Colca CanyonPeru16°5° width8
    La PazBolivia16°6° width7
    Lake DistrictUnited Kingdom16°7° width16
    Mount Everest North Base CampChina16°13° width17
    TadoussacCanada16°9° width6
    DublinIreland17°6° width10
    KazanRussia17°14° width3
    Margaret RiverAustralia17°6° width11
    MelbourneAustralia17°9° width9
    MoscowRussia17°15° width9
    Punta del EsteUruguay17°9° width7
    Salar de UyuniBolivia18°5° width0
    StockholmSweden17°9° width7
    Yellowstone National ParkUnited States17°15° width6
    AalborgDenmark18°8° width11
    AstanaKazakhstan18°17° width5
    BamiyanAfghanistan18°9° width1
    Buenos AiresArgentina18°8° width5
    JasperCanada18°16° width7
    Jiuzhaigou ValleyChina18°9° width21
    Lake TiticacaPeru18°5° width6
    Mount PaektuNorth Korea18°9° width9
    Neuschwanstein CastleGermany18°13° width13
    VilniusLithuania18°12° width6
    Lake Issyk-KulKyrgyzstan18°5° width20

    Readings summarise observed daily weather from 2016 to 2025. They are a historical reference, not a forecast. Data: Visual Crossing global historical archive. How we compute this

    Frequently asked

    Where is reliably cool in September?
    The driest 12-18°C cool-comfort picks in September, all with a wider day-to-day spread, are: Salar de Uyuni (17°C, about 0 rain days, a 5° spread); Bamiyan (18°C, about 1 rain day, a 9° spread); Kazan (17°C, about 3 rain days, a 14° spread); Buenos Aires (18°C, about 5 rain days, an 8° spread).
    What counts as a coolcation in September?
    On this site, a coolcation is anywhere with a mean daily high at or below 18°C. In September that filters 48 of 295 curated destinations with a ten-year record. The warmest in-band pick is Buenos Aires at 18°; the steadiest day-to-day is Salar de Uyuni with a 5° spread.
    Is September the right month for a coolcation?
    It depends on where you go. In September the ten-year record puts 48 curated destinations at or below 18°C mean daily high. If that count is small, the northern hemisphere is warming and southern-hemisphere hill stations or high-latitude coasts do most of the work. If it is large, the reverse.

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