September · Bolivia
Best time to visit Tarija in September Weather, crowds & prices
Weather in Tarija in September
Average temperature 13°C, 4 mm of rain, about 24 days with 6+ hours of sunshine and 48% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
9.4/10
Ranked #1 of 12 months
- Avg temp
- 13°C
- Rainfall
- 4 mm
- Humidity
- 48%
- Days with 6h+ sun
- 24
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$$ · Peak Season Rates ($$$)
September in Tarija scores 9.4/10 for sightseeing and cultural travel - the single best month of the year. Expect around 13°C, 4 mm of rain, and roughly 24 days with 6+ hours of sunshine this month.
Tarija is Bolivia’s wine valley capital-Andean foothill vineyards, mild climate, and a plaza-centred old town. Best window: late spring through early autumn.
September in Tarija — the year's strongest window
Temperatures hover around 13°C (55°F) — the kind of month where neither heat nor cold forces the schedule.
At just 4 mm for the month, rain will not shape your plans; you get about 24 days with 6+ hours of sunshine and 11.9 hours of daylight.
On our climate-comfort scale this is the top-ranked month of the year for Tarija at 9.4/10 — the reference point every other month on this page is measured against.
Pack layers you can shed by midday plus one warm layer for the evening.
Expect peak pricing, and crowds are moderate. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Frequently asked
- What is the weather like in Tarija in September?
- In September, Tarija averages 13°C, 4 mm of rain, and about 24 days with 6+ hours of sunshine. Its climate-comfort score is 9.4/10.
- Is September a good time to visit Tarija?
- September earns a 9.4/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Tarija in September?
- Expect about 4 mm of rain in September. Average humidity is 48% and there are about 24 days with 6+ hours of sunshine.
Curated in Tarija
Tickets & experiences
Things to do in Tarija
Tarija, Bolivia. Live activities and tours from GetYourGuide, matched to this destination.