Maldonado, Uruguay
Río de la Plata34.86°S, 55.29°WStation UR-MAL-PIR

Piriápolis Sea Water Temperature

A mild beach on the Río de la Plata, warmest around February at about 22.9°C. Today's reading, 7-day forecast, and monthly averages below.

Live readings · auto-updating
Water Temperature NowBuoy & Sentinel-3 SST

Piriápolis water temperature

13.3
55.9°FVery Cold (< 16°C)

Wetsuit strongly recommended. Sudden entry may cause cold shock. Suitable only for brief, brisk plunges.

+0°vs Sep avgRío de la Plata34.86°S, 55.29°W
Activity Index:SwimmingSnorkelingSurfingTypical conditions
Marine Atmosphere Grid Live Marine Feed
Coastal Air
15°C
58.6°F onshore
Wind Speed
12 km/h
Surface wind
Wave Height
0.8 m
Slight shore chop
Swell
0.6 m
Deep water swell
Wave Period
6 s
Peak interval
UV Index
—
Daily maximum
Sunrise
—
First morning light
Sunset
—
Golden hour close

7-Day Water Temperature Forecast

Open-Meteo ocean model
Today
WedSep 30
13.3°C
55.9°F
Waves: 1m
Very Cold
ThuOct 1
13.6°C
56.5°F
Waves: 0.9m
Very Cold
FriOct 2
13.7°C
56.7°F
Waves: 0.7m
Very Cold
SatOct 3
13.6°C
56.5°F
Waves: 0.6m
Very Cold
SunOct 4
13.3°C
55.9°F
Waves: 0.7m
Very Cold
MonOct 5
13°C
55.4°F
Waves: 0.9m
Very Cold
TueOct 6
12.9°C
55.2°F
Waves: 1m
Very Cold
Forecast cooling trend: -0.4°C over 7 days at Piriápolis.
Confidence: High

Piriápolis Monthly Water Temperature Averages

Historical monthly climatology. The warmest water in Piriápolis occurs inJanuary, February, March, December — peaking at22.9°C (73.2°F) in February.

Year-Round Water Temperature Curve (°C / °F)

Hover a bar for details
Current month Comfortable (20–24°C) Warm (24°C+) Cool (<20°C)
22
Jan
23
Feb
22
Mar
20
Apr
17
May
14
Jun
12
Jul
12
Aug
Current
13
Sep
16
Oct
19
Nov
21
Dec
Full 12-month data table — min / avg / max & swimming comfort
MonthMin Water TempAverage Water TempMax Water TempSwimming Comfort
January17.7°C22.2°C24.9°CComfortable (20°C – 24°C)
February21.1°C22.9°C25.4°CComfortable (20°C – 24°C)
March18.8°C21.9°C26.4°CComfortable (20°C – 24°C)
April16.5°C19.7°C21.6°CCool / Refreshing (16°C – 20°C)
May14.1°C16.6°C18.5°CCool / Refreshing (16°C – 20°C)
June11°C13.5°C16.2°CVery Cold (< 16°C)
July6.6°C11.5°C14.7°CVery Cold (< 16°C)
August9.7°C12°C15.7°CVery Cold (< 16°C)
SeptemberCurrent11.2°C13.3°C16.2°CVery Cold (< 16°C)
October13.3°C15.9°C18.6°CVery Cold (< 16°C)
November14.6°C18.7°C21.8°CCool / Refreshing (16°C – 20°C)
December17.8°C20.9°C24.1°CComfortable (20°C – 24°C)

Swimming FAQs for Piriápolis

Is the sea warm enough to swim in Piriápolis today?

Typical sea surface temperature in Piriápolis this time of year is 13.3°C (55.9°F) — classified as Very Cold (< 16°C). Wetsuit strongly recommended. Sudden entry may cause cold shock. Suitable only for brief, brisk plunges. Live readings load automatically.

What are the warmest months for swimming in Piriápolis?

The highest water temperatures in Piriápolis typically occur duringJanuary, February, March, December, when monthly averages reach peak seasonal levels.

What is the typical water temperature in Piriápolis in September?

Historically in September, water temperatures in Piriápolis average around13.3°C (55.9°F), fluctuating between a recorded minimum of 11.2°C and a maximum of 16.2°C.

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