Hot
Average highs reach 32°C, so days can feel very hot.
September verdict
Mixed for holiday weather
Average highs reach 32°C, so days can feel very hot. Sunshine averages 5.8h per day, enough for a balanced month. Rainfall averages 375mm, so showers are a real planning factor.
Monthly averages
Temp
32°C
Rain
375mm
Sun
5.8h
Sea
30°C
Weather score
48
Mixed
Hot
Average highs reach 32°C, so days can feel very hot.
Wet
Rainfall averages 375mm, so showers are a real planning factor.
Some sun
Sunshine averages 5.8h per day, enough for a balanced month.
Warm sea
Sea temperatures average 30°C, so swimming is usually comfortable by monthly-average standards.
Map
Compare Rio Dulce, Guatemala with nearby places by weather score, rain, sun, temperature, and swim conditions.
September32°C average high
September sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsApril to June and August to September
This stretch sets the upper range for average daytime heat.
September375mm average rain
September is wetter than Rio Dulce's yearly average, so flexible plans matter more.
Driest monthsJanuary to May and December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
September5.8 hours average sun
September is below Rio Dulce's yearly sunshine average, so bright-day planning is less reliable than in peak months.
Brightest monthsMarch to May and August
This stretch has the strongest sunshine in the monthly averages.
September30°C average sea
September is one of Rio Dulce's warmest sea months, when swimming comfort is usually strongest.
Warmest seaMay to October
Sea temperatures are usually near 29°C in this stretch, so swimming comfort is at its strongest.
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 April
These months have the strongest weather score in the monthly averages.