Cool
Average highs are around 16°C, so pack for cooler days.
Weather Guide
Cabo Polonio, Uruguay Average Monthly Weather
Weather score47Mixed annual avg
Best months: January, February, December
Across the year, average daytime temperatures are around 21°C, sunshine averages 6.4h per day, and rainfall totals about 1102mm. Sea temperatures average 18°C across the year.
Annual weather
Annual averages
Temp
21°C
Rain
1102mm
Annual total
Sun
6.4h
Sea
18°C
Weather score
47
Mixed avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 106mm, so some wet days are possible.
Limited sun
Sunshine averages 4.3h per day, so this is not one of the brighter months.
Cool sea
Sea temperatures average 12°C, so the water can feel cool.
Map
Weather map
Compare Cabo Polonio, Uruguay with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
July16°C average high
July has some of the coolest average daytime highs of the year, so pack for fresher conditions.
Warmest monthsJanuary to March and December
This stretch sets the upper range for average daytime heat.
Rain
July106mm average rain
July is one of Cabo Polonio's wettest months, so rain is likely to be a major planning factor.
Driest monthsMarch to May and November to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
July4.3 hours average sun
July is one of Cabo Polonio's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsJanuary and November to December
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
July12°C average sea
July is one of the coolest sea months, so the water may feel fresher than in peak months.
Warmest seaJanuary to April and December
Sea temperatures are usually near 23°C in this stretch, so swimming comfort is at its strongest.
Weather score
July25 weather score
July 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 March and December
These months have the strongest weather score in the monthly averages.
