Climate averages 1991–2020
Retalhuleu weather
in April.
A hot, wet month: the 2nd warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a hot month in Retalhuleu: daytime highs average 31.5°C and nights cool to about 22.4°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 93 mm of rain on roughly 14 days, which makes April a wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 27 min on an average April day.
The nearest other city in this atlas is Mazatenango (19 km away). In April its highs average 30.5°C, 1.1°C cooler than Retalhuleu, with 133 mm of rain.
Among the 23 cities listed in Guatemala, Retalhuleu ranks joint 2nd of 23 for the warmest April highs and 18th of 23 for the driest April (rainfall, lowest first). The mean April high of those 23 cities is 27.5°C; Retalhuleu is 4.1°C warmer than that mean.
From April to May, average highs fall by 1.7°C to 29.8°C, and monthly rainfall rises from 93 mm to 351 mm.
The annual picture
April 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, selected | 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 | 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
April in nearby cities
- Mazatenango in AprilGuatemala · 19 kmHigh 30.5°C · Low 21.0°C · 133 mm rain
- Coatepeque in AprilGuatemala · 27 kmHigh 28.8°C · Low 19.5°C · 243 mm rain
- Quetzaltenango in AprilGuatemala · 38 kmHigh 20.3°C · Low 13.1°C · 247 mm rain
- Totonicapán in AprilGuatemala · 54 kmHigh 21.3°C · Low 12.1°C · 60 mm rain
- Malacatán in AprilGuatemala · 58 kmHigh 29.3°C · Low 18.6°C · 130 mm rain
- Santa Lucía Cotzumalguapa in AprilGuatemala · 74 kmHigh 30.5°C · Low 20.2°C · 58 mm rain
- Tapachula in AprilMexico · 75 kmHigh 31.3°C · Low 21.4°C · 119 mm rain
- Chichicastenango in AprilGuatemala · 76 kmHigh 23.7°C · Low 13.2°C · 49 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.