Weather in Cusco in September
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Book now, pay at pickup — compare Hertz, Avis, Budget, Sixt and 800+ rental companies for September in Cusco.
Compare car hire prices → Affiliate link — we earn a commission at no extra cost to youCusco in September is pleasantly mild — daytime temperatures average 18.7°C, dropping to 6.4°C at night. The month is mostly dry with only occasional showers, with roughly 10.8 hours of sunshine a day. Weather-wise, this is one of the most reliable months to travel. For the complete picture, see the best time to visit Cusco — every month compared. Once you know when to go, find your Cusco packing list at 247PackingList.
Get ready for Cusco in September
Search flights to Cusco
Compare 100+ airlines for September — one search, best price.
Search Flights →Thermal travel layers
Pack proper layers — winters are genuinely cold and evenings drop fast year-round.
Check Price →What to pack for Cusco in September
- Warm layers
- Light jacket or fleece
- Comfortable walking shoes
Compare all months in Cusco
| Month | High | Rain | Rating |
|---|---|---|---|
| January | 16.4°C | 230.8mm | 8/10 |
| February | 16.3°C | 174.2mm | 9/10 |
| March | 16.1°C | 164.8mm | 9/10 |
| April | 16.6°C | 73.4mm | 10/10 |
| May | 16.7°C | 39.9mm | 10/10 |
| June | 17.3°C | 4.1mm | 10/10 |
| July | 18.5°C | 7.4mm | 10/10 |
| August | 18.8°C | 18.2mm | 10/10 |
| September | 18.7°C | 36.8mm | 10/10 |
| October | 19.0°C | 73.2mm | 10/10 |
| November | 18.7°C | 128.0mm | 9/10 |
| December | 17.4°C | 192.4mm | 9/10 |
Full month-by-month guide: best time to visit Cusco →
For facts about Peru — currency, language and dialling code — see our Peru country guide at 247CountryInfo. Travellers also find it useful to keep a Cusco travel guide to hand. Check clothing sizes in Peru before you shop.
Frequently Asked Questions
Is September a good time to visit Cusco?
September rates 10/10 for visiting Cusco — excellent time to visit. Expect average highs of 18.7°C, 36.8mm of rain across the month and about 10.8 hours of daily sunshine.
What is the temperature in Cusco in September?
In September, Cusco has average highs of 18.7°C (65.7°F) and average lows of 6.4°C (43.5°F).
Does it rain in Cusco in September?
Not much. September averages just 36.8mm of rain in Cusco — the odd shower is possible but most days stay dry.
What should I wear in Cusco in September?
For Cusco in September (18.7°C highs / 6.4°C lows), pack warm layers plus light jacket or fleece, comfortable walking shoes.
More essentials for Cusco in September
Packing cubes
Keep the bag organised whatever the weather — compression cubes for every size.
Check Price →Travel first aid kit
Compact TSA-friendly kit for peace of mind wherever you travel.
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Climate data sourced from Open-Meteo (open source, open data licence). Monthly averages calculated from 2020–2023 historical data. Weather can be unpredictable — always check a live forecast before travelling.