Where it's cool in September

Top 10 destinations in September

1. 1.Salar de Uyuni, Bolivia

   17°hiking

   Averages 17° in September with swings barely 2° either side of 17° and 0 rain days on the ten-year record. Cool without being wintry. Layers, not a coat.

2. 2.Lake Titicaca, Peru

   18°culture

   Averages 18° in September with swings barely 2° either side of 18° and 6 rain days on the ten-year record. Cool without being wintry. Layers, not a coat.

3. 3.Colca Canyon, Peru

   16°hiking

   Averages 16° in September with swings barely 2° either side of 16° and 8 rain days on the ten-year record. Cool without being wintry. Layers, not a coat.

4. 4.Jökulsárlón Glacier Lagoon, Iceland

   11°hiking

   Averages 11° in September with swings barely 2° either side of 11° and 16 rain days on the ten-year record. Cool without being wintry. Layers, not a coat.

5. 5.La Paz, Bolivia

   16°culture

   Averages 16° in September with a 6° day-to-day spread around 16° and 7 rain days on the ten-year record. Cool without being wintry. Layers, not a coat.

6. 6.Dublin, Ireland

   17°culture

   Averages 17° in September with a 6° day-to-day spread around 17° and 10 rain days on the ten-year record. Cool without being wintry. Layers, not a coat.

7. 7.Margaret River, Australia

   17°couples

   Averages 17° in September with a 6° day-to-day spread around 17° and 11 rain days on the ten-year record. Cool without being wintry. Layers, not a coat.

8. 8.Puerto Varas, Chile

   13°hiking

   Averages 13° in September with a 6° day-to-day spread around 13° and 13 rain days on the ten-year record. Cool without being wintry. Layers, not a coat.

9. 9.Ketchikan, United States

   15°hiking

   Averages 15° in September with a 6° day-to-day spread around 15° and 17 rain days on the ten-year record. Cool without being wintry. Layers, not a coat.

10. 10.Anchorage, United States

    14°hiking

    Averages 14° in September with a 7° day-to-day spread around 14° and 13 rain days on the ten-year record. Cool without being wintry. Layers, not a coat.

Average temperatures by destination

Readings come from the last ten years of daily weather data, so they reflect the climate as it is now, not as it was decades ago. 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.