September · Chile
Best time to visit Valparaiso in September Weather, crowds & prices
Weather in Valparaiso in September
Average temperature 12°C, 10 mm of rain, about 17 days with 6+ hours of sunshine and 84% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
8.3/10
Ranked #8 of 12 months
- Avg temp
- 12°C
- Rainfall
- 10 mm
- Humidity
- 84%
- Days with 6h+ sun
- 17
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
September in Valparaiso scores 8.3/10 for sightseeing and cultural travel - ranked #8 of 12. Expect around 12°C, 10 mm of rain, and roughly 17 days with 6+ hours of sunshine this month.
Valparaíso climbs its hills in a tangle of funiculars, murals and colourful tin houses above the Pacific.
September in Valparaiso: strong conditions, 8th of 12
September averages 12°C (54°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Rain is a non-issue at 10 mm for the month, with about 17 days with 6+ hours of sunshine and 11.8 hours of daylight to work with.
It scores 8.3/10 here, 8th of 12 months, against 9.4/10 in the destination's best month.
Pack layers you can shed by midday plus one warm layer for the evening.
Figure on mid-season pricing, with crowds are moderate.
Frequently asked
- What is the weather like in Valparaiso in September?
- In September, Valparaiso averages 12°C, 10 mm of rain, and about 17 days with 6+ hours of sunshine. Its climate-comfort score is 8.3/10.
- Is September a good time to visit Valparaiso?
- September earns a 8.3/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Valparaiso in September?
- Expect about 10 mm of rain in September. Average humidity is 84% and there are about 17 days with 6+ hours of sunshine.
Curated in Valparaiso
Tickets & experiences
Things to do in Valparaiso
Valparaiso, Chile. Live activities and tours from GetYourGuide, matched to this destination.