Hot
Average highs reach 34°C, so days can feel very hot.
September verdict
El Castaño, Mexico in September
Weather score48Mixed
Mixed for holiday weather
Average highs reach 34°C, so days can feel very hot. Sunshine averages 4.5h per day, so this is not one of the brighter months. Rainfall averages 449mm, so showers are a real planning factor.
September weather
Monthly averages
Temp
34°C
Rain
449mm
Sun
4.5h
Sea
30°C
Weather score
48
Mixed
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 449mm, so showers are a real planning factor.
Limited sun
Sunshine averages 4.5h per day, so this is not one of the brighter months.
Warm sea
Sea temperatures average 30°C, so swimming is usually comfortable by monthly-average standards.
Map
Weather map
Compare El Castaño, Mexico with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September34°C average high
September is cooler than the yearly average, which can make sightseeing feel gentler than in hotter months.
Warmest monthsFebruary to May
This stretch sets the upper range for average daytime heat.
Rain
September449mm average rain
September is one of El Castaño's wettest months, so rain is likely to be a major planning factor.
Driest monthsJanuary to April and November to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September4.5 hours average sun
September is one of El Castaño's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsJanuary to March and November
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
September30°C average sea
September sits in the warmer sea-temperature season, usually making swimming easier to enjoy.
Warmest seaApril to November
Sea temperatures are usually near 30°C in this stretch, so swimming comfort is at its strongest.
Weather score
September48 weather score
September is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.
Best weather monthsJanuary to March and November to December
These months have the strongest weather score in the monthly averages.
Hotels near El Castaño, Mexico
Marriott
City Express by Marriott TapachulaTapachula, Chiapas, Mexico
City Express by Marriott ComitanComitan de Dominguez, Chiapas, Mexico
City Express Junior by Marriott Tuxtla Gutiérrez PoliforumTuxtla Gutierrez, Chiapas, Mexico
City Express by Marriott Tuxtla GutierrezTuxtla Gutierrez, Chiapas, Mexico
Marriott Tuxtla Gutierrez HotelTuxtla Gutierrez, Chiapas, Mexico