Climate averages 1991–2020
Arauca weather
in September.
A hot, very wet month: the joint 7th warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Arauca: daytime highs average 29.9°C and nights cool to about 22.9°C. By daytime temperature it is the joint 7th warmest of the 12 months.
Expect about 244 mm of rain on roughly 26 days, which makes September a very wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 10 min on an average September day.
The nearest other city in this atlas is Socopó (128 km away). In September its highs average 28.7°C, 1.1°C cooler than Arauca, with 145 mm of rain.
Among the 46 cities listed in Colombia, Arauca ranks joint 8th of 46 for the warmest September highs and 34th of 46 for the driest September (rainfall, lowest first). The mean September high of those 46 cities is 26.4°C; Arauca is 3.4°C warmer than that mean.
From September to October, average highs rise by 0.3°C to 30.2°C, and monthly rainfall falls from 244 mm to 211 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
Arauca climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 31.9°C22.9°C | 22.9°C | 15 | 2.7 | 11.812 h |
| February | 33.1°C24.0°C | 24.0°C | 21 | 3.6 | 11.912 h |
| March | 33.3°C24.7°C | 24.7°C | 55 | 7.6 | 12.112 h |
| April | 31.0°C23.9°C | 23.9°C | 181 | 19.7 | 12.312 h |
| May | 29.2°C23.2°C | 23.2°C | 324 | 26.6 | 12.412 h |
| June | 28.3°C22.6°C | 22.6°C | 375 | 28.1 | 12.513 h |
| July | 28.4°C22.3°C | 22.3°C | 346 | 27.9 | 12.512 h |
| August | 29.2°C22.6°C | 22.6°C | 293 | 27.4 | 12.412 h |
| September, selected | 29.9°C22.9°C | 22.9°C | 244 | 26.3 | 12.212 h |
| October | 30.2°C23.2°C | 23.2°C | 211 | 26.3 | 12.012 h |
| November | 29.9°C23.1°C | 23.1°C | 145 | 20.3 | 11.812 h |
| December | 30.3°C22.7°C | 22.7°C | 51 | 9.5 | 11.712 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
- Socopó in SeptemberVenezuela · 128 kmHigh 28.7°C · Low 20.1°C · 145 mm rain
- Ejido (approximate) in SeptemberVenezuela · 171 kmHigh 25.8°C · Low 17.7°C · 143 mm rain
- Mérida, Venezuela in SeptemberVenezuela · 172 kmHigh 24.7°C · Low 16.4°C · 143 mm rain
- Táriba in SeptemberVenezuela · 181 kmHigh 28.1°C · Low 19.6°C · 46 mm rain
- Rubio in SeptemberVenezuela · 189 kmHigh 27.7°C · Low 18.8°C · 46 mm rain
- Cúcuta in SeptemberColombia · 213 kmHigh 32.4°C · Low 22.5°C · 59 mm rain
- Guanare in SeptemberVenezuela · 245 kmHigh 29.7°C · Low 22.1°C · 187 mm rain
- San Carlos del Zulia in SeptemberVenezuela · 249 kmHigh 31.0°C · Low 24.5°C · 326 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 Arauca) is explained once on the Arauca year overview and on the Sources, method and limits page.