September · Colombia
Best time to visit Cartagena in September Weather, crowds & prices
Weather in Cartagena in September
Average temperature 28°C, 151 mm of rain, about 27 days with 6+ hours of sunshine and 85% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
7.6/10
Ranked #8 of 12 months
- Avg temp
- 28°C
- Rainfall
- 151 mm
- Humidity
- 85%
- Days with 6h+ sun
- 27
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
September in Cartagena scores 7.6/10 for beach and coastal travel - ranked #8 of 12. Expect around 28°C, 151 mm of rain, and roughly 27 days with 6+ hours of sunshine this month.
Cartagena de Indias is a walled Caribbean city in Colombia, with colonial squares, fortresses and island beaches.
September holds up well in Cartagena — 8th best month
September averages 28°C (82°F) and humidity near 85%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Monthly rainfall reaches 151 mm — wet for this destination — but about 27 days with 6+ hours of sunshine still break through, so keep one indoor fallback in the plan.
It scores 7.6/10 here, 8th of 12 months, against 9.8/10 in the destination's best month.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
Figure on low-season pricing, with crowds are light for this destination.
Flexible dates? January scores 2.2 points higher here — enough to change the trip.
Frequently asked
- What is the weather like in Cartagena in September?
- In September, Cartagena averages 28°C, 151 mm of rain, and about 27 days with 6+ hours of sunshine. Its climate-comfort score is 7.6/10.
- Is September a good time to visit Cartagena?
- September earns a 7.6/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Cartagena in September?
- Expect about 151 mm of rain in September. Average humidity is 85% and there are about 27 days with 6+ hours of sunshine.
Curated in Cartagena
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