Climate averages 1991–2020
Retalhuleu weather
in July.
A hot, very wet month: the 7th warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a hot month in Retalhuleu: daytime highs average 28.9°C and nights cool to about 22.2°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 287 mm of rain on roughly 27 days, which makes July a very wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 54 min on an average July day.
The nearest other city in this atlas is Mazatenango (19 km away). In July its highs average 27.9°C, 1.0°C cooler than Retalhuleu, with 366 mm of rain.
Among the 23 cities listed in Guatemala, Retalhuleu ranks 3rd of 23 for the warmest July highs and 17th of 23 for the driest July (rainfall, lowest first). The mean July high of those 23 cities is 25.0°C; Retalhuleu is 3.8°C warmer than that mean.
From July to August, average highs fall by 0.1°C to 28.8°C, and monthly rainfall rises from 287 mm to 361 mm.
The annual picture
July 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
Retalhuleu climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 30.0°C20.3°C | 20.3°C | 18 | 4.9 | 11.411 h |
| February | 31.1°C20.7°C | 20.7°C | 15 | 3.8 | 11.712 h |
| March | 31.6°C21.6°C | 21.6°C | 36 | 8.4 | 12.012 h |
| April | 31.5°C22.4°C | 22.4°C | 93 | 14.4 | 12.512 h |
| May | 29.8°C22.5°C | 22.5°C | 351 | 27.0 | 12.813 h |
| June | 28.5°C22.2°C | 22.2°C | 374 | 28.4 | 13.013 h |
| July, selected | 28.9°C22.2°C | 22.2°C | 287 | 27.0 | 12.913 h |
| August | 28.8°C22.2°C | 22.2°C | 361 | 28.5 | 12.613 h |
| September | 28.1°C21.9°C | 21.9°C | 456 | 29.2 | 12.212 h |
| October | 27.7°C21.7°C | 21.7°C | 384 | 27.7 | 11.812 h |
| November | 28.3°C21.4°C | 21.4°C | 116 | 15.5 | 11.511 h |
| December | 29.2°C20.5°C | 20.5°C | 27 | 6.0 | 11.311 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
July in nearby cities
- Mazatenango in JulyGuatemala · 19 kmHigh 27.9°C · Low 21.0°C · 366 mm rain
- Coatepeque in JulyGuatemala · 27 kmHigh 26.8°C · Low 19.5°C · 492 mm rain
- Quetzaltenango in JulyGuatemala · 38 kmHigh 19.4°C · Low 13.7°C · 297 mm rain
- Totonicapán in JulyGuatemala · 54 kmHigh 19.2°C · Low 12.5°C · 153 mm rain
- Malacatán in JulyGuatemala · 58 kmHigh 27.3°C · Low 18.2°C · 325 mm rain
- Santa Lucía Cotzumalguapa in JulyGuatemala · 74 kmHigh 27.6°C · Low 19.6°C · 256 mm rain
- Tapachula in JulyMexico · 75 kmHigh 28.9°C · Low 20.8°C · 506 mm rain
- Chichicastenango in JulyGuatemala · 76 kmHigh 20.9°C · Low 13.7°C · 157 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 Retalhuleu) is explained once on the Retalhuleu year overview and on the Sources, method and limits page.