Poptún, Guatemala Climate
The warmest month is April, with an average high of 33°C; the coldest is January, with an average low of 18°C. A normal year brings 1702 mm of precipitation.
Temperature through the year
The normal daily high and low. The line marks today.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
Normals for Sep 24
- Normal high
- 28°C
- Normal low
- 22°C
- Reanalysis high
- 32°Cin 2019
- Reanalysis low
- 21°Cin 1996
- Chance of a wet day
- 85%
- Daylight
- 12 h 05 min
Month by month
Averages for 1991-2020. Wet days have at least 1 mm of precipitation in the reanalysis. Each month links to its own page.
| Month | Avg high | Avg low | Warmest | Coldest | Precipitation | Wet days |
|---|---|---|---|---|---|---|
| January | 26°C | 18°C | 34°C (1998) | 10°C (2010) | 121 mm | 15.5 |
| February | 28°C | 18°C | 39°C (1998) | 10°C (2006) | 73 mm | 11.3 |
| March | 31°C | 19°C | 40°C (1994) | 11°C (2009) | 62 mm | 9.3 |
| April | 33°C | 21°C | 41°C (2003) | 14°C (2003) | 42 mm | 9.0 |
| May | 33°C | 22°C | 41°C (1998) | 17°C (1998) | 105 mm | 12.4 |
| June | 29°C | 23°C | 38°C (2005) | 20°C (1993) | 192 mm | 24.0 |
| July | 28°C | 22°C | 36°C (1994) | 19°C (2000) | 177 mm | 24.8 |
| August | 28°C | 22°C | 35°C (2004) | 20°C (1993) | 180 mm | 24.8 |
| September | 28°C | 22°C | 35°C (2004) | 20°C (2009) | 204 mm | 24.0 |
| October | 27°C | 21°C | 34°C (1994) | 15°C (2011) | 226 mm | 21.7 |
| November | 26°C | 19°C | 35°C (1997) | 11°C (1991) | 177 mm | 18.0 |
| December | 25°C | 18°C | 32°C (2009) | 10°C (2010) | 143 mm | 18.6 |
| Year | 29°C | 20°C | 1702 mm | 213 |
Precipitation
Rain and melted snow together. The chance of a wet day is the share of days with at least 1 mm of precipitation in the reanalysis.
1702 mm in a normal year, most in October.
Chance of a wet day
- Chance of a wet day
Humidity and comfort
NASA POWER reanalysis, 1991-2020, for the grid cell around Poptún.
The muggiest month is June, when 100 percent of days are muggy or worse, with a mean dew point of 18°C or more.
| Month | Dew point | Humidity | Dry | Comfortable | Humid | Muggy | Oppressive | Miserable |
|---|---|---|---|---|---|---|---|---|
| January | 18°C | 86% | 2% | 9% | 30% | 57% | 2% | 0% |
| February | 18°C | 79% | 2% | 7% | 38% | 52% | 1% | 0% |
| March | 18°C | 71% | 3% | 11% | 43% | 42% | 1% | 0% |
| April | 19°C | 66% | 0% | 4% | 34% | 57% | 4% | 0% |
| May | 20°C | 71% | 0% | 1% | 10% | 61% | 27% | 0% |
| June | 22°C | 83% | 0% | 0% | 1% | 23% | 75% | 2% |
| July | 22°C | 85% | 0% | 0% | 1% | 22% | 77% | 0% |
| August | 22°C | 86% | 0% | 0% | 0% | 17% | 82% | 0% |
| September | 23°C | 89% | 0% | 0% | 0% | 7% | 92% | 1% |
| October | 22°C | 90% | 0% | 0% | 3% | 22% | 74% | 1% |
| November | 20°C | 90% | 0% | 3% | 13% | 47% | 37% | 0% |
| December | 19°C | 89% | 1% | 5% | 19% | 64% | 12% | 0% |
Comfort is judged by the day's mean dew point: dry below 13°C, comfortable to 16°C, humid to 18°C, muggy to 21°C, oppressive to 24°C, miserable above.
Clouds
Average share of the sky covered, from satellite (CERES and GEWEX SRB) by way of NASA POWER, 1991-2020.
The clearest month is March, with the sky 47 percent covered on average; the cloudiest is June, at 75 percent.
Wind
The mean wind speed over the whole day, from the MERRA-2 reanalysis by way of NASA POWER. Gusts run well above it.
The windiest month is March, averaging 4.3 km/h at 10 meters (33 feet) above the ground.
Daylight and sunshine
The longest day is Jun 20, with 13 h 07 min of daylight; the shortest is Dec 16, with 11 h 09 min.
- Day length
Solar energy
Average daily sunshine reaching the ground on a flat surface, in kilowatt-hours per square meter, clouds included.
Month pages
The weather in Poptún in each month, day by day.
What this means
A normal is the average of the thirty years 1991 to 2020, the period the World Meteorological Organization and NOAA use for comparison. It is an average, not a forecast: most days depart from it, and some by a long way.
Where no station record is within reach, the extremes shown are the highest and lowest the reanalysis produced for the date in 1991-2020, not measured records.
Cloud, humidity, wind and sunshine come from a reanalysis: a weather model run over the past with every observation fed in, averaged over a grid cell about 50 km across. It is consistent everywhere on Earth; it smooths local detail such as a lake shore or a valley.
More for this place
Sources
Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.