Weather in Medellin in September 2025
Average weather
Average temperature in Medellin in September
The expected average maximum temperature in September is +29°C with a maximum of +31°C and a minimum of +13°C.
The average maximum temperature goes up 6% by the end of the month, compared with the beginning of the month, from +29°C to +30°C.
Is Medellin warm or cold in September?
Medellin is typically warm in September.
Maximum temperatures go down compared to the previous month from +27°C to +26°C. The minimum temperature also goes up from +15°C to +16°C.
It’s generally warm, but pack a long-sleeve shirt for evenings.
September is one of the warmest months in Medellin, here is the comparison with other months:
Climate in Medellin in September
| August | September | October | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +27°C | +26°C | +25°C | ||||
| Min. temperature | ||||||
| +12°C | +11°C | +13°C | ||||
| Max. temperature | ||||||
| +32°C | +34°C | +31°C | ||||
| Rainfall | ||||||
| 182 mm | 217 mm | 273 mm | ||||
| Wind | ||||||
| 1 m/s | 1 m/s | 0 m/s | ||||
| Humidity | ||||||
| 77% | 79% | 83% | ||||
| Air pressure | ||||||
| 1019 HPa | 1019 HPa | 1019 HPa | ||||
| Sunny days | ||||||
| 0 | 0 | 0 | ||||
| Cloudy days | ||||||
| 3 | 1 | 0 | ||||
| Rainy days | ||||||
| 17 | 13 | 15 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
September weather is still as ok as in August. It’s getting colder in September. From +27°C in the day, the average maximum temperature lowers to +26°C. Prepare for more rain. Average rainfall goes from 182 mm to 217 mm. Humidity rises from 77% to 79%. The average wind speed doesn’t change much during September, staying around 1 m/s. The amount of sunny days stay about the same, averaging 0 sunny days during the month.
October brings much the same weather, it remains ok.
Wind
The average wind speed is 3 m/s getting up to 7 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Medellin is gradually decreasing during September, going from 5 m/s to 3 m/s over the course of the month.
Rain
How was the weather last September in Medellin?
Climate Change over Years
The climate in Medellin in September has not changed much over the last 43 years.
The average temperature was the lowest in 1984 (+24°C) and the highest in 2019 (+28°C). The driest year was 2002 with only 1628 mm of rainfall, and the wettest year was 2008 with 3155 mm.
FAQ
Is September a good time to visit Medellin?
Can you sunbathe in Medellin in September?
Is Medellin rainy in September?
Is it sunny in Medellin in September?
Other cities in Colombia
Monthly weather in Medellin
Source of the data
For this page, we’ve looked at the typical weather in Medellin, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.