Hot
Average highs reach 32°C, so days can feel very hot.
September verdict
Good for holiday weather
Average highs reach 32°C, so days can feel very hot. Sunshine averages 6h per day, enough for a balanced month. Rainfall averages 226mm, so showers are a real planning factor.

Monthly averages
Temp
32°C
Rain
226mm
Sun
6h
Sea
30°C
Weather score
57
Good
Hot
Average highs reach 32°C, so days can feel very hot.
Wet
Rainfall averages 226mm, so showers are a real planning factor.
Some sun
Sunshine averages 6h 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 Tulum, Quintana Roo, Mexico 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 September
This stretch sets the upper range for average daytime heat.
September226mm average rain
September is one of Tulum'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.
September6 hours average sun
September is one of Tulum's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsMarch to May
This stretch has the strongest sunshine in the monthly averages.
September30°C average sea
September is one of Tulum's warmest sea months, when swimming comfort is usually strongest.
Warmest seaJune to October
Sea temperatures are usually near 29°C in this stretch, so swimming comfort is at its strongest.
September57 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 and November to December
These months have the strongest weather score in the monthly averages.