Climate averages 1991–2020
Retalhuleu weather
in March.
A hot, fairly dry month: the warmest and the 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
March is a hot month in Retalhuleu: daytime highs average 31.6°C and nights cool to about 21.6°C. By daytime temperature it is the warmest month of the year.
Expect about 36 mm of rain on roughly 8 days, which makes March a fairly dry month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 03 min on an average March day.
The nearest other city in this atlas is Mazatenango (19 km away). In March its highs average 30.8°C, 0.8°C cooler than Retalhuleu, with 53 mm of rain.
Among the 23 cities listed in Guatemala, Retalhuleu ranks 1st of 23 for the warmest March highs and 16th of 23 for the driest March (rainfall, lowest first). The mean March high of those 23 cities is 27.0°C; Retalhuleu is 4.6°C warmer than that mean.
From March to April, average highs stay level at 31.5°C, and monthly rainfall rises from 36 mm to 93 mm.
The annual picture
March 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, selected | 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 | 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
March in nearby cities
- Mazatenango in MarchGuatemala · 19 kmHigh 30.8°C · Low 20.2°C · 53 mm rain
- Coatepeque in MarchGuatemala · 27 kmHigh 29.0°C · Low 18.7°C · 110 mm rain
- Quetzaltenango in MarchGuatemala · 38 kmHigh 20.4°C · Low 12.5°C · 109 mm rain
- Totonicapán in MarchGuatemala · 54 kmHigh 21.1°C · Low 11.2°C · 23 mm rain
- Malacatán in MarchGuatemala · 58 kmHigh 29.5°C · Low 17.8°C · 66 mm rain
- Santa Lucía Cotzumalguapa in MarchGuatemala · 74 kmHigh 30.9°C · Low 19.3°C · 18 mm rain
- Tapachula in MarchMexico · 75 kmHigh 31.1°C · Low 20.4°C · 42 mm rain
- Chichicastenango in MarchGuatemala · 76 kmHigh 23.2°C · Low 12.1°C · 15 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.