South America
Colombia
Warmer than averageSeasonal outlook
September to November 2026
Likely warmer than usual
The European seasonal forecast model expects Colombia to average about 1.8°C warmer than usual for this time of year.
Cooler 21%About usual 21%Warmer 58%
Estimated chance of each outcome. With no forecast signal, each would be about 1 in 3.
High confidence
A strong signal. Outcomes usually follow it, but not always.
Source
European seasonal forecast (ECMWF), via Copernicus
Technical details
- Model: ECMWF SEAS5 (system 51) ensemble mean, from the Copernicus Climate Data Store.
- 2 m air temperature anomaly: +1.78°C, averaged over September to November 2026, relative to the model's 1993 to 2016 average.
- Taken at the model grid point nearest 4.60, -74.30, so it represents that area rather than the whole country.
- Chances (cooler / about usual / warmer): 21% / 21% / 58%. Estimated by Nino Tracker from the size of the anomaly, because the ensemble mean product does not include the model's own odds.
- Confidence is set by the anomaly's size: under 0.5°C low, 0.5 to 1°C moderate, 1°C or more high.
El Niño right now
Strong El Niño
El Niño is a natural warming of the central and eastern tropical Pacific Ocean that shifts weather patterns around the world. Over June to August 2026, sea temperatures there averaged about 1.8°C above normal, which counts as a strong event.
Technical details
- Oceanic Niño Index (ONI): +1.80 for JJA 2026. It is the 3-month average sea surface temperature anomaly in the Niño 3.4 region (5°N to 5°S, 120°W to 170°W), from NOAA.
- El Niño conditions are +0.5°C or more, La Niña −0.5°C or less, sustained for five overlapping 3-month seasons. Strength: weak 0.5 to 0.9, moderate 1.0 to 1.4, strong 1.5 to 1.9, very strong 2.0 or more.
- NOAA now uses a relative version of this index (RONI) for official monitoring. The ONI is still published each month.
- Last updated Sep 23, 2026, 6:56 PM UTC.
Upcoming 7 Days
Bogotá
11–26°
Drizzle
16.2° avg
Last year
13.8° avg
2.4° coolerMedellín
16–29°
Drizzle
20.1° avg
Last year
20.9° avg
0.8° warmerCali
20–28°
Showers
22.3° avg
Last year
22.7° avg
About the sameBarranquilla
23–34°
Thunderstorms
27.1° avg
Last year
27.9° avg
0.8° warmerLast year this week · Sep 23 to 29, 2025
Across these 4 cities, it averaged 21.3°, about the same as this week's forecast of 21.4°.
Updated Sep 23, 2026, 6:56 PM UTC
Nino Tracker updates weather data two times a day.
