September · Chile
Best time to visit Viña del Mar in September Weather, crowds & prices
Weather in Viña del Mar in September
Average temperature 12°C, 11 mm of rain, about 17 days with 6+ hours of sunshine and 63% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
5.7/10
Ranked #8 of 12 months
- Avg temp
- 12°C
- Rainfall
- 11 mm
- Humidity
- 63%
- Days with 6h+ sun
- 17
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
September in Viña del Mar scores 5.7/10 for beach and coastal travel - ranked #8 of 12. Expect around 12°C, 11 mm of rain, and roughly 17 days with 6+ hours of sunshine this month.
Viña del Mar is Chile’s garden seaside resort-flower clock, casino strip, and easy hops to Valparaíso hills. Best window: October-April in the Southern Hemisphere.
September in Viña del Mar — middling scores, decent value
Temperatures hover around 12°C (54°F) — the kind of month where neither heat nor cold forces the schedule.
At just 11 mm for the month, rain will not shape your plans; you get about 17 days with 6+ hours of sunshine and 11.8 hours of daylight.
That is 5.7/10 on the same scale — 8th of 12 months, versus 9/10 for the best month here.
Pack layers you can shed by midday plus one warm layer for the evening.
Budget for low-season pricing, and crowds are light for this destination.
If your dates are flexible, February is materially better in Viña del Mar — 3.3 points higher on the same scale.
Frequently asked
- What is the weather like in Viña del Mar in September?
- In September, Viña del Mar averages 12°C, 11 mm of rain, and about 17 days with 6+ hours of sunshine. Its climate-comfort score is 5.7/10.
- Is September a good time to visit Viña del Mar?
- September earns a 5.7/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Viña del Mar in September?
- Expect about 11 mm of rain in September. Average humidity is 63% and there are about 17 days with 6+ hours of sunshine.
Curated in Viña del Mar
Tickets & experiences
Things to do in Viña del Mar
Viña del Mar, Chile. Live activities and tours from GetYourGuide, matched to this destination.