Warm
Average highs sit around 30°C, giving warm days by monthly-average standards.
May verdict
Good for holiday weather
Average highs sit around 30°C, giving warm days by monthly-average standards. Sunshine averages 5.2h per day, enough for a balanced month. Rainfall averages 77mm, which is relatively low for holiday planning.

Monthly averages
Temp
30°C
Rain
77mm
Sun
5.2h
Weather score
66
Good
Warm
Average highs sit around 30°C, giving warm days by monthly-average standards.
Drier
Rainfall averages 77mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 5.2h per day, enough for a balanced month.
Map
Compare Oaxaca, Oaxaca, Mexico with nearby places by weather score, rain, sun, temperature, and swim conditions.
May30°C average high
May sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsMarch to May
This stretch sets the upper range for average daytime heat.
May77mm average rain
May sits near Oaxaca's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to April and October to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
May5.2 hours average sun
May sits close to Oaxaca's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsFebruary to March
This stretch has the strongest sunshine in the monthly averages.
May66 weather score
May scores above Oaxaca's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsFebruary to April
These months have the strongest weather score in the monthly averages.