Best weather in September
The 15 countries whose September comes closest to comfortable travel weather, scored from ten years of ERA5 data. Open any of them for the month in detail — regional breakdown, the rest of the year, and current travel-advisory levels.
Scored against the default profile: days 22–30 °C, nights 12–22 °C, no more than light rain, at least 6 hours of sun. Set your own on the map — averages, not a forecast.
- Greece in SeptemberEurope26°C54 mm7.6 h sunAll year
- Portugal in SeptemberEurope26°C42 mm8.1 h sunAll year
- New Caledonia in SeptemberOceania25°C47 mm7.0 h sunAll year
- Bolivia in SeptemberSouth America29°C46 mm8.2 h sunAll year
- Turkey in SeptemberAsia26°C27 mm8.5 h sunAll year
- Madagascar in SeptemberAfrica28°C21 mm8.4 h sunAll year
- Spain in SeptemberEurope25°C53 mm7.6 h sunAll year
- Eswatini in SeptemberAfrica26°C40 mm6.1 h sunAll year
- Malawi in SeptemberAfrica28°C5 mm9.3 h sunAll year
- Comoros in SeptemberAfrica26°C27 mm8.4 h sunAll year
- Lebanon in SeptemberAsia28°C6 mm8.8 h sunAll year
- Tanzania in SeptemberAfrica29°C19 mm8.1 h sunAll year
- East Timor in SeptemberAsia29°C33 mm8.7 h sunAll year
- Azerbaijan in SeptemberAsia25°C51 mm6.2 h sunAll year
- Mauritius in SeptemberAfrica24°C29 mm7.8 h sunAll year
How this ranking works
Every country’s September is scored on three things: mean temperature, rainfall per day and sunshine hours, each averaged over ten years of ERA5 reanalysis. The score is the same one the map paints and the country pages print — a country cannot look better here than it does on its own page.
Countries that score identically are ordered by how far inside the comfortable range they sit, so a country in the middle of the band comes before one at its edge. Averages describe a typical September; they are not a forecast for the week you travel, and a national figure hides a lot in a large country — open a country to see its regions.