Warm
Average highs sit around 29°C, giving warm days by monthly-average standards.
September verdict
Guatemala in September
Weather score44Mixed
Mixed for holiday weather
Average highs sit around 29°C, giving warm days by monthly-average standards. Sunshine averages 5.8h per day, enough for a balanced month. Rainfall averages 303mm, so showers are a real planning factor.
September weather
Monthly averages
Temp
29°C
Rain
303mm
Sun
5.8h
Sea
7°C
Weather score
44
Mixed
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 303mm, so showers are a real planning factor.
Some sun
Sunshine averages 5.8h per day, enough for a balanced month.
Cool sea
Sea temperatures average 7°C, so the water can feel cool.
Map
Weather map
Compare Guatemala with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September29°C average high
September is close to Guatemala's yearly temperature average, giving a typical read on daytime heat.
Warmest monthsMarch to June and August
This stretch sets the upper range for average daytime heat.
Rain
September303mm average rain
September is one of Guatemala'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
September5.8 hours average sun
September is one of Guatemala's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsFebruary to May
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
September7°C average sea
September is close to Guatemala's usual sea temperature, with limited seasonal change in the water.
Warmest seaAll year
Sea temperatures stay warm enough for easy swimming through the year.
Weather score
September44 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 April
These months have the strongest weather score in the monthly averages.
