Colombia Medellín Weather in September — Climate Guide
September in Medellín is moderate
Medellín Weather in September — Quick Answer
As of 2026- Avg temp
- 28° / 17°
- Rainfall
- 165mm · 17 days
- Crowds
- Moderate
As of 2026, Medellín in September averages a high of 28°C and low of 17°C with 165mm of rain over about 17 days. Start of the second rainy season — warm around 28°C/17°C but increasingly wet, with frequent afternoon downpours. Light clothing, a rain jacket or umbrella, and water-resistant shoes. High UV (11) between showers — keep SPF on.
September is moderate for Medellín.
September marks the start of Medellín's second rainy season. The temperature stays mild (28°C/17°C), but rainfall climbs again (about 165mm) with frequent afternoon and evening downpours; mornings tend to stay clearer.
After the August festival rush, the city is quieter and better value — easier bookings and lower prices. Build days around the rain: morning Comuna 13, Metrocable, or Guatapé, with afternoons for the Museo de Antioquia, Casa de la Memoria, Parque Explora, or the café scene.
Travel score
Medellín September Weather Stats
Avg High
28°C
Avg Low
17°C
Rainy Days
17
165mm total
Sunshine
5h
Daily avg
Humidity
68%
muggy
UV Index
11
Extreme
Wind
8 km/h
Gusts 16
Crowds
Moderate
At attractions
September Sunrise & Sunset
Air Quality
PM2.5
23 μg/m³
PM10
40 μg/m³
Status
good
Feels-Like Temperature & Wind
Feels like
Daytime
29°C
Nighttime
17°C
Humidity and wind affect how the actual temperature feels.
Wind
8 km/h
Max gust 16 km/h
Activities Recommended for September
September Travel Pros & Cons
Pros
- Quieter and better value after the festival
- Lush, green landscapes
- Mild eternal-spring warmth
- Mornings usually workable for sights
Cons
- Second rainy season begins (165mm)
- Frequent afternoon/evening downpours
- Paragliding may be weather-cancelled
- Fewer clear-sky days
September Events & Festivals
- Start of the second rainy season (Sep-Nov)
- Quieter and better value after the August festival
- Mornings usually clearer than afternoons
Medellín in September — Full Picture
September marks the start of Medellín's second rainy season. The temperature stays mild (28°C/17°C), but rainfall climbs again (about 165mm) with frequent afternoon and evening downpours; mornings tend to stay clearer.
After the August festival rush, the city is quieter and better value — easier bookings and lower prices. Build days around the rain: morning Comuna 13, Metrocable, or Guatapé, with afternoons for the Museo de Antioquia, Casa de la Memoria, Parque Explora, or the café scene.
The surrounding hills are lush and green again, good for coffee-country day trips between showers.
Note: carry a rain jacket or umbrella, expect possible paragliding cancellations on wet days, and keep SPF 50+ on for the strong sun when it breaks through.
What to Wear & What to Pack
Start of the second rainy season — warm around 28°C/17°C but increasingly wet, with frequent afternoon downpours. Light clothing, a rain jacket or umbrella, and water-resistant shoes. High UV (11) between showers — keep SPF on.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
27.7°C
18°C
17/mo
Summer (Jun·Jul·Aug)
28°C
17°C
14.7/mo
Autumn (Sep·Oct·Nov)
Current27.3°C
17°C
18.3/mo
Winter (Dec·Jan·Feb)
28°C
17°C
10.7/mo
Medellín Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| January (Best) | 28° | 17° | 10d·65mm | 6.5h | 64% | 11 | Busy | Peak |
| February (Best) | 28° | 17° | 10d·70mm | 6.5h | 63% | 11 | Moderate | Shoulder |
| 28° | 18° | 14d·115mm | 5.5h | 66% | 11 | Moderate | Shoulder | |
| 27° | 18° | 18d·175mm | 4.5h | 70% | 10 | Moderate | Shoulder | |
| 28° | 18° | 19d·195mm | 4.5h | 71% | 10 | Moderate | Shoulder | |
| 28° | 17° | 15d·130mm | 5.5h | 67% | 11 | Moderate | Peak | |
| July (Best) | 28° | 17° | 14d·115mm | 6h | 65% | 11 | Busy | Peak |
| August (Best) | 28° | 17° | 15d·125mm | 6h | 66% | 11 | Very busy | Peak |
| 28° | 17° | 17d·165mm | 5h | 68% | 11 | Moderate | Shoulder | |
| 27° | 17° | 20d·200mm | 4h | 71% | 10 | Moderate | Shoulder | |
| 27° | 17° | 18d·165mm | 4.5h | 71% | 10 | Moderate | Shoulder | |
| December (Best) | 28° | 17° | 12d·85mm | 6h | 66% | 11 | Very busy | Peak |
View Other Months
Medellín September Hotel Picks
Frequently Asked Questions
Is September a good time to visit Medellín?
Medellín in September is moderate. Tourist crowds are moderate and flight/hotel prices are shoulder.
What's the average temperature in Medellín in September?
Medellín September averages a high of 28°C and a low of 17°C.
Does it rain much in Medellín in September?
Medellín September averages 165mm of rainfall over about 17 rainy days.
What should I wear in Medellín in September?
Start of the second rainy season — warm around 28°C/17°C but increasingly wet, with frequent afternoon downpours. Light clothing, a rain jacket or umbrella, and water-resistant shoes. High UV (11) between showers — keep SPF on.
What time are sunrise and sunset in Medellín in September?
Medellín September sunrise is 05:55 and sunset is 17:55, with 12h 00min of daylight.
What's the air quality like in Medellín in September?
Medellín September air quality (AQI) averages 52, rated Moderate. PM2.5 averages 23μg/m³.
What activities are recommended in Medellín in September?
In September, Medellín is great for Morning Comuna 13 tour, Indoor museums on wet afternoons, Lush coffee-hill day trip.
Is September peak season in Medellín?
Medellín September crowds are moderate and prices are shoulder. You can travel relatively comfortably without long queues.
Best Months to Visit Medellín
View Other Months
Planning a September trip to Medellín?
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Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.