Climate averages 1991–2020
Medellín weather
in September.
A warm, very wet month: the joint 3rd warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Medellín: daytime highs average 24.8°C and nights cool to about 14.8°C. By daytime temperature it is the joint 3rd warmest of the 12 months.
Expect about 247 mm of rain on roughly 27 days, which makes September a very wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 09 min on an average September day.
The nearest other city in this atlas is Bello (10 km away). In September its highs average 25.3°C, about as warm as Medellín, with 247 mm of rain.
Among the 46 cities listed in Colombia, Medellín ranks joint 31st of 46 for the warmest September highs and joint 35th of 46 for the driest September (rainfall, lowest first). The mean September high of those 46 cities is 26.4°C; Medellín is 1.6°C cooler than that mean.
From September to October, average highs fall by 1.3°C to 23.6°C, and monthly rainfall rises from 247 mm to 307 mm.
The annual picture
September in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Medellín climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 24.2°C14.7°C | 14.7°C | 134 | 21.3 | 11.812 h |
| February | 24.8°C14.9°C | 14.9°C | 169 | 22.9 | 11.912 h |
| March | 24.8°C15.2°C | 15.2°C | 268 | 28.1 | 12.112 h |
| April | 24.2°C15.6°C | 15.6°C | 335 | 28.6 | 12.312 h |
| May | 24.0°C15.6°C | 15.6°C | 337 | 29.5 | 12.412 h |
| June | 24.5°C14.8°C | 14.8°C | 208 | 26.7 | 12.512 h |
| July | 25.0°C14.2°C | 14.2°C | 172 | 25.6 | 12.412 h |
| August | 25.5°C14.4°C | 14.4°C | 180 | 25.0 | 12.312 h |
| September, selected | 24.8°C14.8°C | 14.8°C | 247 | 27.2 | 12.212 h |
| October | 23.6°C15.2°C | 15.2°C | 307 | 29.2 | 12.012 h |
| November | 22.9°C15.4°C | 15.4°C | 294 | 28.6 | 11.812 h |
| December | 23.6°C15.1°C | 15.1°C | 193 | 23.9 | 11.812 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
September in nearby cities
- Bello in SeptemberColombia · 10 kmHigh 25.3°C · Low 15.2°C · 247 mm rain
- Caldas in SeptemberColombia · 19 kmHigh 23.2°C · Low 13.0°C · 253 mm rain
- Rionegro in SeptemberColombia · 24 kmHigh 22.3°C · Low 13.0°C · 176 mm rain
- La Dorada in SeptemberColombia · 134 kmHigh 33.2°C · Low 22.9°C · 110 mm rain
- Quibdó in SeptemberColombia · 135 kmHigh 27.8°C · Low 22.6°C · 754 mm rain
- Montelíbano in SeptemberColombia · 194 kmHigh 29.8°C · Low 23.4°C · 182 mm rain
- Chigorodó in SeptemberColombia · 200 kmHigh 29.1°C · Low 22.6°C · 395 mm rain
- Ibagué in SeptemberColombia · 205 kmHigh 26.9°C · Low 19.2°C · 217 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Medellín) is explained once on the Medellín year overview and on the Sources, method and limits page.
Bello lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.