Cool
Average highs are around 16°C, so pack for cooler days.
May verdict
Poor for holiday weather
Average highs are around 16°C, so pack for cooler days. Sunshine averages 5.2h per day, enough for a balanced month. Rainfall averages 72mm, which is relatively low for holiday planning.

Monthly averages
Temp
16°C
Rain
72mm
Sun
5.2h
Sea
16°C
Weather score
30
Poor
Cool
Average highs are around 16°C, so pack for cooler days.
Drier
Rainfall averages 72mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 5.2h per day, enough for a balanced month.
Cool sea
Sea temperatures average 16°C, so the water can feel cool.
Map
Compare Mar del Plata, Argentina with nearby places by weather score, rain, sun, temperature, and swim conditions.
May16°C average high
May is on the cooler side of Mar del Plata's year, useful if you prefer less intense daytime heat.
Warmest monthsJanuary to March and December
This stretch sets the upper range for average daytime heat.
May72mm average rain
May sits near Mar del Plata's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to February and April to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
May5.2 hours average sun
May is below Mar del Plata's yearly sunshine average, so bright-day planning is less reliable than in peak months.
Brightest monthsJanuary to February and November to December
This stretch has the strongest sunshine in the monthly averages.
May16°C average sea
May is close to Mar del Plata's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaJanuary to March
Sea temperatures are usually near 20°C in this stretch, so swimming comfort is at its strongest.
May30 weather score
May 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 February
These months have the strongest weather score in the monthly averages.