Mild
Average highs are around 20°C, so days are mild rather than hot.
April verdict
Mixed for holiday weather
Average highs are around 20°C, so days are mild rather than hot. Sunshine averages 6.3h per day, enough for a balanced month. Rainfall averages 68mm, which is relatively low for holiday planning.

Monthly averages
Temp
20°C
Rain
68mm
Sun
6.3h
Sea
18°C
Weather score
45
Mixed
Mild
Average highs are around 20°C, so days are mild rather than hot.
Drier
Rainfall averages 68mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 6.3h per day, enough for a balanced month.
Cool sea
Sea temperatures average 18°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.
April20°C average high
April is close to Mar del Plata's yearly temperature average, giving a typical read on daytime heat.
Warmest monthsJanuary to March and December
This stretch sets the upper range for average daytime heat.
April68mm average rain
April 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.
April6.3 hours average sun
April sits close to Mar del Plata's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsJanuary to February and November to December
This stretch has the strongest sunshine in the monthly averages.
April18°C average sea
April sits in the warmer sea-temperature season, usually making swimming easier to enjoy.
Warmest seaJanuary to March
Sea temperatures are usually near 20°C in this stretch, so swimming comfort is at its strongest.
April45 weather score
April sits close to Mar del Plata's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJanuary to February
These months have the strongest weather score in the monthly averages.