Libertador General Bernardo O'Higgins, Chile
Río de la Plata34.38°S, 72.01°WStation CH-LIB-PLA

Playa Principal Sea Water Temperature

A temperate beach on the Río de la Plata, warmest around February at about 15.8°C. Today's reading, 7-day forecast, and monthly averages below.

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

Playa Principal water temperature

12.6
54.7°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 Plata34.38°S, 72.01°W
Activity Index:SwimmingSnorkelingSurfingTypical conditions
Marine Atmosphere Grid Live Marine Feed
Coastal Air
14°C
57.4°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
12.6°C
54.7°F
Waves: 1m
Very Cold
ThuOct 1
12.9°C
55.2°F
Waves: 0.9m
Very Cold
FriOct 2
13°C
55.4°F
Waves: 0.7m
Very Cold
SatOct 3
12.9°C
55.2°F
Waves: 0.6m
Very Cold
SunOct 4
12.6°C
54.7°F
Waves: 0.7m
Very Cold
MonOct 5
12.3°C
54.1°F
Waves: 0.9m
Very Cold
TueOct 6
12.2°C
54°F
Waves: 1m
Very Cold
Forecast cooling trend: -0.4°C over 7 days at Playa Principal.
Confidence: High

Playa Principal Monthly Water Temperature Averages

Historical monthly climatology. The warmest water in Playa Principal occurs inJanuary, February, March, December — peaking at15.8°C (60.4°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)
16
Jan
16
Feb
16
Mar
15
Apr
14
May
13
Jun
13
Jul
12
Aug
Current
13
Sep
13
Oct
14
Nov
15
Dec
Full 12-month data table — min / avg / max & swimming comfort
MonthMin Water TempAverage Water TempMax Water TempSwimming Comfort
January13.7°C15.7°C18.3°CVery Cold (< 16°C)
February13.8°C15.8°C18°CVery Cold (< 16°C)
March13°C15.7°C18.8°CVery Cold (< 16°C)
April12°C14.5°C17.3°CVery Cold (< 16°C)
May12.5°C13.8°C15.5°CVery Cold (< 16°C)
June11.5°C13.3°C14.5°CVery Cold (< 16°C)
July11.6°C12.6°C13.6°CVery Cold (< 16°C)
August11.4°C12.4°C13.1°CVery Cold (< 16°C)
SeptemberCurrent11.6°C12.6°C13.7°CVery Cold (< 16°C)
October11.4°C12.7°C13.9°CVery Cold (< 16°C)
November11.8°C13.6°C15.2°CVery Cold (< 16°C)
December13.5°C14.8°C17.7°CVery Cold (< 16°C)

Swimming FAQs for Playa Principal

Is the sea warm enough to swim in Playa Principal today?

Typical sea surface temperature in Playa Principal this time of year is 12.6°C (54.7°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 Playa Principal?

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

What is the typical water temperature in Playa Principal in September?

Historically in September, water temperatures in Playa Principal average around12.6°C (54.7°F), fluctuating between a recorded minimum of 11.6°C and a maximum of 13.7°C.

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Playa Principal Coastal Zone Map

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