Monthly climate guide
Ayacucho weather in September
With highs near 17°C (62°F) and lows around 5°C (40°F), September feels mild in Ayacucho. Rainfall averages about 24 mm (fairly dry) and the sky is a mix of sun and cloud. Daytime highs are about the same as August and about the same as October.
What stands out in September
- Ayacucho is usually about 8°C cooler than Ica, 190 km away, in September.
- September is Ayacucho's third warmest month.
- It's one of the drier months, with about 53% less rain than Ayacucho's average.
- September sits in Ayacucho's drier season — usually a comfortable time to visit.
Avg high
17°C
62°F
Avg low
5°C
40°F
Rainfall
24 mm
fairly dry
Humidity
73%
relative
Sky
42%
cloud · a mix of sun and cloud
Ayacucho weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 15°C / 60°F | 5°C / 42°F | 93 mm | 80% | 75% |
| February | 15°C / 59°F | 5°C / 41°F | 126 mm | 84% | 80% |
| March | 15°C / 59°F | 5°C / 42°F | 95 mm | 85% | 74% |
| April | 15°C / 59°F | 5°C / 41°F | 29 mm | 83% | 56% |
| May | 15°C / 60°F | 4°C / 40°F | 17 mm | 79% | 37% |
| June | 15°C / 59°F | 3°C / 38°F | 6 mm | 78% | 28% |
| July | 15°C / 59°F | 3°C / 37°F | 13 mm | 75% | 26% |
| August | 16°C / 61°F | 3°C / 38°F | 11 mm | 73% | 30% |
| September | 17°C / 62°F | 5°C / 40°F | 24 mm | 73% | 42% |
| October | 17°C / 62°F | 5°C / 41°F | 32 mm | 73% | 56% |
| November | 17°C / 63°F | 6°C / 42°F | 58 mm | 73% | 56% |
| December | 16°C / 60°F | 5°C / 42°F | 106 mm | 78% | 73% |
What to pack for September
- A warm sweater or fleece for layering
- A mid-weight jacket
- An extra layer — evenings are noticeably cooler than afternoons
Is September a good time to visit Ayacucho?
Compare the months in the chart above to find your ideal window.
Best time to visit Ayacucho →Other Peru cities in September
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Ayacucho weather in September. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/peru/ayacucho/september
<a href="https://weathercompare.eu/weather/peru/ayacucho/september">Ayacucho weather in September</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/peru/ayacucho" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Ayacucho weather in September"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/peru/ayacucho/september">Ayacucho weather in September</a> – WeatherCompare</p>
Ayacucho in September: quick answers
Is September a good time to visit Ayacucho?
Yes. September is one of the best months for Ayacucho, with highs around 17°C and about 24 mm of rain.
How warm is Ayacucho in September?
Average highs are about 17°C (62°F) and average lows about 5°C (40°F), based on 10 years of daily data.
Does it rain a lot in Ayacucho in September?
Ayacucho typically gets around 24 mm of rain in September — fairly dry.
Figures are long-term averages for the area around Ayacucho (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.