Sacred Valley Weather in September
Sacred Valley in September averages 14°C (57°F) during the day and 3°C (37°F) at night. Keep in mind that quite a bit of rainfall is expected this month.
Rainfall in Sacred Valley in September
Historically, approximately 9 days this month are expected to have rain, averaging 79 mm (3.1 in). The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.
Temperature in Sacred Valley in September
In September, Sacred Valley gets moderate temperatures, with highs of 14°C (57°F). Nights cool to around 3°C (37°F). Conditions are often most pleasant around the middle of the day. Nights fall to 3°C (37°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.
Sunshine in Sacred Valley in September
There are approximately 195 hours of sunshine this month, resulting in mostly clear days. Despite the cool temperatures, the sunshine makes it an enjoyable time to be outside.Should you favor a climate that's both dry and comfortably warm, June typically offers the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Peru, check out our Sacred Valley's climate page.
Sacred Valley Temperature in September
Min Temperature
3°C (37°F)
Max Temperature
14°C (57°F)
Chance of Rain
29%
Precipitation
79 mm (3.1 in)
Rainy days
9 days
Humidity
56% *
Sunshine
195 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Sacred Valley typically stay consistent throughout September, with daily highs averaging around 14°C (57°F). Nights are cold, with lows typically ranging from 4°C (39°F) to 6°C (43°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Sacred Valley in September
Browse day-by-day weather records for Sacred Valley spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Sacred Valley historical weather extremes in September
Based on weather observations in Sacred Valley between 1991 and 2025, these are the recorded extremes during September.
- The warmest day in September was on September 22, 1994, with a maximum of 26°C (79°F).
- The coldest September day was on September 27, 1996, with a maximum of 11°C (52°F).
- Sacred Valley registered its coldest September night on September 1, 2012, with temperatures dropping to -1°C (30°F).
Best Places in Peru in September
Find out more about the weather in Peru and which places have the best travel conditions in this month. See all of Peru in September →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Sacred Valley in September
The weather can be unpredictable in September, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. Rain is likely on several days, so bring a good rain jacket. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Sacred Valley in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Peru, check out our Sacred Valley's climate page.
Temperature Rainfall Sunshine Humidity
See the full Sacred Valley climate overview or explore weather in Peru.
