September · Chile
Best time to visit Arica in September Weather, crowds & prices
Weather in Arica in September
Average temperature 17°C, 336 mm of rain, about 19 days with 6+ hours of sunshine and 87% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
3.7/10
Ranked #12 of 12 months
- Avg temp
- 17°C
- Rainfall
- 336 mm
- Humidity
- 87%
- Days with 6h+ sun
- 19
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
September in Arica scores 3.7/10 for beach and coastal travel - ranked #12 of 12. Expect around 17°C, 336 mm of rain, and roughly 19 days with 6+ hours of sunshine this month.
Arica is Chile’s northern tip city-year-round mild beach weather, Morro headland, and routes toward Peru and Putre. Best window: cooler months from late autumn through early spring.
September in Arica — off-season conditions
September averages 17°C (63°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
336 mm of rain puts this in monsoon territory — about 19 days with 6+ hours of sunshine across the whole month, and multi-day washouts are normal.
It scores 3.7/10 here, 12th of 12 months, against 9.7/10 in the destination's best month.
Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella.
Plan for low-season pricing, with crowds are light for this destination.
Flexible dates? February scores 6 points higher here — enough to change the trip.
Frequently asked
- What is the weather like in Arica in September?
- In September, Arica averages 17°C, 336 mm of rain, and about 19 days with 6+ hours of sunshine. Its climate-comfort score is 3.7/10.
- Is September a good time to visit Arica?
- September earns a 3.7/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Arica in September?
- Expect about 336 mm of rain in September. Average humidity is 87% and there are about 19 days with 6+ hours of sunshine.
Curated in Arica
Tickets & experiences
Things to do in Arica
Arica, Chile. Live activities and tours from GetYourGuide, matched to this destination.