October weather forecast
Cusco, Peru

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An early morning panorama of the Plaza de Armas in Cusco, Peru
An early morning panorama of the Plaza de Armas in Cusco, Peru

Weather in October

October welcomes the initial phase of the wet season with a considerable increase in rainfall. Precipitation doubles to 39mm (1.54") from the previous month, spreading over 8 days. Despite the rise in humidity and rainfall, the weather in Cusco, Peru still caters to outdoor activities and exploration. Hikers and adventure seekers can still enjoy the trails but must be ready for changes in weather. Local cultural festivities continue to enliven the city, ensuring no dampening of spirits despite the increased precipitation.

Temperature

Cusco's temperature records reveal October as the warmest month, marked by average highs of 20.9°C (69.6°F) and lows of 5.5°C (41.9°F).

Humidity

The average relative humidity in October in Cusco, Peru, is 51%.

Rainfall

In October, the rain falls for 8 days. Throughout October, 39mm (1.54") of precipitation is accumulated. In Cusco, during the entire year, the rain falls for 102 days and collects up to 708mm (27.87") of precipitation.

Daylight

In October, the average length of the day is 12h and 25min.
On the first day of October, sunrise is at 05:30 and sunset at 17:44. On the last day of the month, sunrise is at 05:13 and sunset at 17:49 -05.

Sunshine

The average sunshine in October is 6.4h.

UV index

The months with the highest UV index in Cusco are January through April, August through December, with an average maximum UV index of 12. A UV Index reading of 11, and higher, represents an extreme threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum UV index, 12 during October, leads to the following recommendations:
Carry out all important precautions, unprotected skin could get burns in no time. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
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Frequently asked questions

What part of the year is the hottest in Cusco?

In Cusco, the peak temperatures are generally noted in October, averaging a high of 20.9°C (69.6°F) and a low of 5.5°C (41.9°F).

What is the average October temperature in Cusco?

The average high-temperature, in October, in Cusco, is 20.9°C (69.6°F), while the average low-temperature is 5.5°C (41.9°F).

What is the average humidity in October in Cusco?

The average relative humidity in October in Cusco is 51%.

How many days does it rain in October in Cusco?

In Cusco, during October, the rain falls for 8 days and regularly aggregates up to 39mm (1.54") of precipitation.

How many hours of daylight does Cusco have in October?

In October, the average day length in Cusco, Peru, is 12h and 25min.

When is the sunrise / sunset in October in Cusco?

In October, on the first day of the month, sunrise is at 05:30 and sunset at 17:44. On the last day of the month, in Cusco, Peru, sunrise is at 05:13 and sunset at 17:49 -05.

How long on average sun shines in October in Cusco?

The average sunshine duration in October in Cusco is 6.4h.

When is the highest UV index in Cusco?

January through April, August through December, with an average maximum UV index of 12, are months with the highest UV index.

What is the UV index intensity in October in Cusco?

The average daily maximum UV index in October in Cusco is 12. A UV Index of 11, and more, symbolizes an extreme health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in October
Cusco, Peru

Average temperature in October - Cusco, Peru
  • Average high temperature in October: 20.9°C

The warmest month (with the highest average high temperature) is October (20.9°C).
The months with the lowest average high temperature are January and February (18.8°C).

  • Average low temperature in October: 5.5°C

The months with the highest average low temperature are January and February (6.6°C).
The coldest month (with the lowest average low temperature) is July (0.2°C).

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Average humidity in October
Cusco, Peru

Average humidity in October - Cusco, Peru
  • Average humidity in October: 51%

The month with the highest relative humidity is February (66%).
The month with the lowest relative humidity is August (46%).

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Average rainfall in October
Cusco, Peru

Average rainfall in October - Cusco, Peru
  • Average rainfall in October: 39.4mm

The wettest month (with the highest rainfall) is January (145.3mm).
The driest month (with the least rainfall) is June (1.5mm).

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Average rainfall days in October
Cusco, Peru

Average rainfall days in October - Cusco, Peru
  • Average rainfall days in October: 8 days

The month with the highest number of rainy days is January (18 days).
The months with the least rainy days are June, July and August (2 days).

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Average daylight in October /
Average sunshine in October
Cusco, Peru

Average daylight in October / Average sunshine in October - Cusco, Peru
  • Average daylight in October: 12h and 2min

The month with the longest days is December (Average daylight: 12h and 54min).
The month with the shortest days is June (Average daylight: 11h and 18min).

  • Average sunshine in October: 6h and 2min

The month with the most sunshine is July (Average sunshine: 8h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).

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Average UV index in October
Cusco, Peru

Average UV index in October - Cusco, Peru
  • Average UV index in October: 12

The months with the highest UV index are January, February, March, April, August, September, October, November and December (UV index 12).
The months with the lowest UV index are June and July (UV index 10).

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Cusco, Peru

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