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Climate · Cusco

Cusco in September

Mild and wet, as the days lengthen.

Typical weather, averaged over 30 years

September in Cusco is mild: highs near 65°F, lows near 41°F. Rain falls on about four days a week, more often as the month goes on, and the days lengthen by 16 minutes from the first week to the last.September in Cusco is mild: highs near 18°C, lows near 5°C. Rain falls on about four days a week, more often as the month goes on, and the days lengthen by 16 minutes from the first week to the last.

High
65°F18°Caverage
Low
41°F5°Caverage
Wet days
4a week · 51% of days
Daylight
12h 03mon average

Is September a good time to visit Cusco?

Yes. September is one of Cusco's best months (June to September).

How we judge it: every month is scored on how close its typical high comes to the range from 70°F to 80°F, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.How we judge it: every month is scored on how close its typical high comes to the range from 21°C to 27°C, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.

How September sits in the year

week by week

Temperature

Highs near 65°F in September, against 62°F to 65°F through the year.Highs near 18°C in September, against 17°C to 18°C through the year.

Chance of a wet day

51% of days in September, against 16% to 98% through the year.

Cloud cover

66% cover in September, against 53% to 87% through the year.

Daylight

12h 03m in September, against 11h 20m to 12h 55m through the year.

Week by week, lightly smoothed, with September shaded. The olive line marks the best months. Hover or tap a week for its figures.

Either side

  1. August64°18°low 39°low 4°2 wet days a weekRain on about two days a week.
  2. September65°18°low 41°low 5°4 wet days a weekRain on about four days a week.
  3. October65°18°low 43°low 6°5 wet days a weekRain on about five days a week.

Where Cusco sits, in September

America/Lima
this place
typical high in September 40°F4°C95°F35°C
Sunrise, mid-September
5:43 AMsets 5:43 PM
Above the sea
3,400 mhigh country
Latitude
13.5°Ssouthern hemisphere
Nearest of ours
Sacred Valley (Urubamba)35 km north-west

The land around Cusco, shaded by its typical high in September, the planning map's own layer. Hover the map for the figure at that spot; tap it on a phone. Clock times are local, for the 15th.

Elsewhere in Peru in September

high · low · wet days
See September on the planning mapThe whole year in Cusco

Typical weather, averaged over 30 years (1995–2024), from the 11 km grid square nearest Cusco. Temperatures are adjusted against 66 weather stations: daytime highs read about 3.1°F cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (3,400 m) against the climate model's (3,794 m).Temperatures are adjusted against 66 weather stations: daytime highs read about 1.7°C cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (3,400 m) against the climate model's (3,794 m). Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not. Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.

Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not.

Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.