September · Chile
Best time to visit Puerto Williams in September Weather, crowds & prices
Weather in Puerto Williams in September
Average temperature 2°C, 32 mm of rain, about 4 days with 6+ hours of sunshine and 84% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
5.3/10
Ranked #7 of 12 months
- Avg temp
- 2°C
- Rainfall
- 32 mm
- Humidity
- 84%
- Days with 6h+ sun
- 4
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
September in Puerto Williams scores 5.3/10 for nature and wildlife travel - ranked #7 of 12. Expect around 2°C, 32 mm of rain, and roughly 4 days with 6+ hours of sunshine this month.
Puerto Williams is the world’s southernmost city claim-Beagle Channel light, Navarino trails, and Cape Horn approaches. Best window: November through March in the Southern Hemisphere.
September in Puerto Williams — workable with trade-offs
September averages 2°C (35°F), cold enough that sightseeing works in bursts rather than in one long day on foot.
Expect 32 mm of rain — occasional showers rather than washed-out days — alongside about 4 days with 6+ hours of sunshine and 11.6 daylight hours.
It scores 5.3/10 here, 7th of 12 months, against 8.5/10 in the destination's best month.
Pack insulated layers, a windproof shell, gloves and boots with grip, footwear you can get muddy.
Plan for low-season pricing, with crowds are light for this destination.
Flexible dates? January scores 3.2 points higher here — enough to change the trip.
Frequently asked
- What is the weather like in Puerto Williams in September?
- In September, Puerto Williams averages 2°C, 32 mm of rain, and about 4 days with 6+ hours of sunshine. Its climate-comfort score is 5.3/10.
- Is September a good time to visit Puerto Williams?
- September earns a 5.3/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Puerto Williams in September?
- Expect about 32 mm of rain in September. Average humidity is 84% and there are about 4 days with 6+ hours of sunshine.
Curated in Puerto Williams
Tickets & experiences
Things to do in Puerto Williams
Puerto Williams, Chile. Live activities and tours from GetYourGuide, matched to this destination.