Climate averages 1991–2020
Cobán weather
in September.
A warm, very wet month: the 5th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Cobán: daytime highs average 23.7°C and nights cool to about 17.0°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 417 mm of rain on roughly 29 days, which makes September a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 14 min on an average September day.
The nearest other city in this atlas is Panzos (79 km away). In September its highs average 29.9°C, 6.2°C warmer than Cobán, with 277 mm of rain.
Among the 23 cities listed in Guatemala, Cobán ranks 15th of 23 for the warmest September highs and 17th of 23 for the driest September (rainfall, lowest first). The mean September high of those 23 cities is 24.7°C; Cobán is 1.0°C cooler than that mean.
From September to October, average highs fall by 1.4°C to 22.3°C, and monthly rainfall falls from 417 mm to 370 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
Cobán climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 20.0°C13.6°C | 13.6°C | 168 | 17.5 | 11.311 h |
| February | 21.5°C14.0°C | 14.0°C | 95 | 12.9 | 11.612 h |
| March | 23.2°C14.5°C | 14.5°C | 118 | 12.7 | 12.012 h |
| April | 25.0°C16.0°C | 16.0°C | 138 | 15.3 | 12.512 h |
| May | 24.9°C17.0°C | 17.0°C | 253 | 23.9 | 12.813 h |
| June | 24.1°C17.4°C | 17.4°C | 420 | 28.7 | 13.013 h |
| July | 23.4°C16.8°C | 16.8°C | 284 | 28.5 | 12.913 h |
| August | 23.8°C16.9°C | 16.9°C | 303 | 28.3 | 12.613 h |
| September, selected | 23.7°C17.0°C | 17.0°C | 417 | 29.3 | 12.212 h |
| October | 22.3°C16.4°C | 16.4°C | 370 | 27.0 | 11.812 h |
| November | 20.6°C15.0°C | 15.0°C | 262 | 21.0 | 11.411 h |
| December | 20.2°C14.2°C | 14.2°C | 167 | 18.1 | 11.211 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
- Panzos in SeptemberGuatemala · 79 kmHigh 29.9°C · Low 22.9°C · 277 mm rain
- San Juan Sacatepéquez in SeptemberGuatemala · 88 kmHigh 22.6°C · Low 13.8°C · 204 mm rain
- Santa Cruz del Quiché in SeptemberGuatemala · 96 kmHigh 21.2°C · Low 13.6°C · 264 mm rain
- Chichicastenango in SeptemberGuatemala · 98 kmHigh 20.8°C · Low 14.0°C · 265 mm rain
- Santa Catarina Pinula in SeptemberGuatemala · 101 kmHigh 23.9°C · Low 15.5°C · 322 mm rain
- Jalapa in SeptemberGuatemala · 102 kmHigh 24.5°C · Low 16.8°C · 216 mm rain
- Chimaltenango in SeptemberGuatemala · 102 kmHigh 22.4°C · Low 15.0°C · 204 mm rain
- San José Pinula in SeptemberGuatemala · 103 kmHigh 21.7°C · Low 13.6°C · 322 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 Cobán) is explained once on the Cobán year overview and on the Sources, method and limits page.