Climate averages 1991–2020

Escuintla weather
in September.

A warm, very wet month: one of the coolest and the wettest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 27.5°C Daytime mean, September
Average low 19.6°C Night-time mean, September
Rainfall 421 mm 30 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Escuintla · average highYear overview

September is a warm month in Escuintla: daytime highs average 27.5°C and nights cool to about 19.6°C. By daytime temperature it is one of the coolest months of the year.

Expect about 421 mm of rain on roughly 30 days, which makes September a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 12 h 13 min on an average September day.

The nearest other city in this atlas is Santa Lucía Cotzumalguapa (26 km away). In September its highs average 26.6°C, 0.9°C cooler than Escuintla, with 374 mm of rain.

Among the 23 cities listed in Guatemala, Escuintla ranks 5th of 23 for the warmest September highs and 18th of 23 for the driest September (rainfall, lowest first). The mean September high of those 23 cities is 24.7°C; Escuintla is 2.9°C warmer than that mean.

From September to October, average highs fall by 0.1°C to 27.5°C, and monthly rainfall falls from 421 mm to 413 mm.

The annual picture

September in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. 1520253035 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 4500

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Escuintla climate table

1991–2020
Monthly climate averages for Escuintla, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 30.0°C18.5°C18.5°C9.93.111.411 h
February 31.0°C18.7°C18.7°C9.12.711.712 h
March 31.3°C19.3°C19.3°C297.712.012 h
April 30.7°C20.1°C20.1°C8617.212.412 h
May 28.9°C20.5°C20.5°C29927.812.813 h
June 28.0°C20.2°C20.2°C36028.813.013 h
July 28.7°C19.9°C19.9°C32030.212.913 h
August 28.4°C19.8°C19.8°C35830.412.613 h
September, selected 27.5°C19.6°C19.6°C42129.512.212 h
October 27.5°C19.3°C19.3°C41328.811.812 h
November 28.3°C18.9°C18.9°C14619.211.511 h
December 29.1°C18.7°C18.7°C277.311.311 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

September in nearby cities

Distance from Escuintla

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 limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Escuintla) is explained once on the Escuintla year overview and on the Sources, method and limits page.