The month in detail
What to expect in September
Spring marks the start of the good season in Valparaíso. Temperatures rise (59°F) and tourists have not yet arrived en masse. Rain is virtually absent (7% of days) — ideal for planning without a backup. Not the best window, but acceptable if dates are constrained. January (8.4/10) is significantly better if possible.
September ranks 8 out of 12 months in Valparaíso. Compared to August: +2°F daytime, 5 pts fewer rainy days, +1.1h of sun per day.
This month's conditions
What it's like in September
UV index
6 · high
sunscreen and hat advised
Feels like
dry air
7°
Sea
12°C
cold, for the brave
Daylight
11.8h of daylight
Air quality
good
AQI 24
Compare
Is September the right month?
The best month in Valparaíso is January (8.4/10), 1.2 pt higher than September.
Book
Plan your trip
Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.
Stay
Hotels & rentals · Valparaíso
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Activities
Tours, tickets, experiences
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Flights
Multi-airline comparator
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🎟️ Activities & tours · Valparaíso
GetYourGuide selection · free cancellation
Practical info
What you need to know before you go
Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a beach trip.
Country · Chile
🗣️LanguageSpanish
💶CurrencyChilean Peso ($)
🚗DrivingRight-hand
🛡️Safety ⓘVery safe · 1/5
💰Cost of living ⓘCheap · 2/5
🌡️ Climate
🌍Climate typeTemperate oceanic
📈Climate trend ⓘStable
🔥Hottest monthJanuary · 68°F
❄️Coolest monthJune · 57°F
🌧️Rainiest month ⓘJune · 19%
🏖️ Beach trip
📅Peak seasonJuin → Sept
🏖️Swell (Sept–Mar) ⓘModérée
Explore
Other destinations in September
If September doesn't convince you for this destination, compare with others.
Location
Where is Valparaíso ?
Global position + regional geographic context.
🌍 World
🔍 Geographic context
ChileTemperate oceanic climate with a 8.4 → 4.3 gap between best and worst month. 10 years of ERA5 data to choose by project.
33.05°S · 71.62°W
Questions
Frequently asked questions
What is the best time to visit Valparaíso?
January is the best month with 68°F highs, 57°F lows, 9.0h of sunshine and 0.0% rainy days. The months of January & February offer comparable conditions.
How many hours of sunshine does Valparaíso get in January?
Valparaíso averages 9.0 sunshine hours per day in January. It is the sunniest month with a climate score of 7.9/10.
What is the rainiest month in Valparaíso?
June is the most unfavourable month with June has the lowest climate score of the year and the lowest climate score of the year.
What are the temperatures at night in Valparaíso in January?
In January, overnight lows reach 57°F, while afternoon highs average 68°F.
Is Valparaíso good in winter?
In winter (December-February), Valparaíso scores 7.8/10 on average — Acceptable conditions for cultural visits.. The best month overall remains January with a score of 7.9/10.
When should you avoid Valparaíso?
June is the most difficult month to visit Valparaíso, with June has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.
Can you swim in Valparaíso in September?
In September, the sea averages 53°F in Valparaíso: cold, for the brave. Best left to hardened swimmers or those with a wetsuit.
Do you need sun protection in Valparaíso in September?
The average UV index reaches 6 in September in Valparaíso (high), with about 11.8h of daylight. Sunscreen and hat advised.