September · Chile
Best time to visit Osorno in September Weather, crowds & prices
Weather in Osorno in September
Average temperature 7°C, 66 mm of rain, about 10 days with 6+ hours of sunshine and 88% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
6.0/10
Ranked #8 of 12 months
- Avg temp
- 7°C
- Rainfall
- 66 mm
- Humidity
- 88%
- Days with 6h+ sun
- 10
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
September in Osorno scores 6.0/10 for sightseeing and cultural travel - ranked #8 of 12. Expect around 7°C, 66 mm of rain, and roughly 10 days with 6+ hours of sunshine this month.
Osorno sits in dairy country below its namesake volcano-gateway toward Puerto Octay and Llanquihue lake towns. Best window: November through March in the Southern Hemisphere.
September in Osorno — workable with trade-offs
September averages 7°C (45°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
Rainfall runs 66 mm, so plan one flexible day in three; you still get about 10 days with 6+ hours of sunshine and 11.7 hours of daylight.
It scores 6/10 here, 8th of 12 months, against 10/10 in the destination's best month.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a packable rain layer.
Plan for low-season pricing, with crowds are light for this destination.
Flexible dates? January scores 4 points higher here — enough to change the trip.
Frequently asked
- What is the weather like in Osorno in September?
- In September, Osorno averages 7°C, 66 mm of rain, and about 10 days with 6+ hours of sunshine. Its climate-comfort score is 6.0/10.
- Is September a good time to visit Osorno?
- September earns a 6.0/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Osorno in September?
- Expect about 66 mm of rain in September. Average humidity is 88% and there are about 10 days with 6+ hours of sunshine.
Curated in Osorno
Tickets & experiences
Things to do in Osorno
Osorno, Chile. Live activities and tours from GetYourGuide, matched to this destination.