Arequipa weather in September
Temperature, rain and sunshine in September: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in September
Excellent
Best time to visit: April – December
What is the weather like in Arequipa in September?
In September, Arequipa is warm: daytime highs average 21 °C, and nights cool down to about 10 °C. The sun shines for around 9 hours a day. It hardly ever rains. All in all, September is an excellent month for a holiday in Arequipa.
September compared
How the weather changes from August to October. Tap a month to open it.
| AugustAug | SeptemberSep | OctoberOct | |
|---|---|---|---|
| Score | 98 | 99 | 100 |
| Day | 21° | 21° | 22° |
| Night | 9° | 10° | 11° |
| Sun | 8 h | 9 h | 9 h |
| Rain days | 1 | 1 | 1 |
More details for September
- Daylight
- 11 h 59 min05:42 – 17:41
- UV index
- 13 · extremeclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 12 km/haverage daily peakAll months
- Cloud cover
- 25 %on averageAll months
- Hot days
- 0 days30 °C or more
- Time zone
- UTC−5America/Lima
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %95 %
- Few rainy daysweight 30 %100 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in September
- Sunscreen
- Sunglasses & sun hat
- A jumper for the evenings
Arequipa in September: quick answers
Is Arequipa hot in September?
Warm rather than hot: in September, daytime highs in Arequipa average 21 °C and nights cool to about 10 °C.
Does it rain much in Arequipa in September?
It hardly ever rains.
Arequipa month by month
The whole year in ArequipaAll destinations: PeruWhere to go in September
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences