September · Chile
Best time to visit Castro in September Weather, crowds & prices
Weather in Castro in September
Average temperature 7°C, 88 mm of rain, about 7 days with 6+ hours of sunshine and 87% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
5.4/10
Ranked #8 of 12 months
- Avg temp
- 7°C
- Rainfall
- 88 mm
- Humidity
- 87%
- Days with 6h+ sun
- 7
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
September in Castro scores 5.4/10 for sightseeing and cultural travel - ranked #8 of 12. Expect around 7°C, 88 mm of rain, and roughly 7 days with 6+ hours of sunshine this month.
Castro anchors Chiloé with colorful palafito stilt houses, wooden churches, and misty island ferry days. Best window: November through March in the Southern Hemisphere.
September in Castro — middling scores, decent value
September averages 7°C (45°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
Rainfall runs 88 mm, so plan one flexible day in three; you still get about 7 days with 6+ hours of sunshine and 11.7 hours of daylight.
It scores 5.4/10 here, 8th of 12 months, against 9.4/10 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 Castro in September?
- In September, Castro averages 7°C, 88 mm of rain, and about 7 days with 6+ hours of sunshine. Its climate-comfort score is 5.4/10.
- Is September a good time to visit Castro?
- September earns a 5.4/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Castro in September?
- Expect about 88 mm of rain in September. Average humidity is 87% and there are about 7 days with 6+ hours of sunshine.
Curated in Castro
Tickets & experiences
Things to do in Castro
Castro, Chile. Live activities and tours from GetYourGuide, matched to this destination.