Rio Grande do Sul, Brazil
Río de la Plata33.69°S, 53.30°WStation BR-RIO-PRA

Praia do Hermenegildo Sea Water Temperature

A mild beach on the Río de la Plata, warmest around February at about 23.8°C. Today's reading, 7-day forecast, and monthly averages below.

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

Praia do Hermenegildo water temperature

13.6
56.5°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 Plata33.69°S, 53.30°W
Activity Index:SwimmingSnorkelingSurfingTypical conditions
Marine Atmosphere Grid Live Marine Feed
Coastal Air
15°C
59.2°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
13.6°C
56.5°F
Waves: 1m
Very Cold
ThuOct 1
13.9°C
57°F
Waves: 0.9m
Very Cold
FriOct 2
14°C
57.2°F
Waves: 0.7m
Very Cold
SatOct 3
13.9°C
57°F
Waves: 0.6m
Very Cold
SunOct 4
13.6°C
56.5°F
Waves: 0.7m
Very Cold
MonOct 5
13.3°C
55.9°F
Waves: 0.9m
Very Cold
TueOct 6
13.2°C
55.8°F
Waves: 1m
Very Cold
Forecast cooling trend: -0.4°C over 7 days at Praia do Hermenegildo.
Confidence: High

Praia do Hermenegildo Monthly Water Temperature Averages

Historical monthly climatology. The warmest water in Praia do Hermenegildo occurs inJanuary, February, March — peaking at23.8°C (74.8°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)
23
Jan
24
Feb
23
Mar
21
Apr
18
May
15
Jun
13
Jul
13
Aug
Current
14
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
January20.7°C23°C26.1°CComfortable (20°C – 24°C)
February22.1°C23.8°C25.3°CComfortable (20°C – 24°C)
March20.7°C23°C26.4°CComfortable (20°C – 24°C)
April18.4°C21.2°C23.6°CComfortable (20°C – 24°C)
May16.1°C18.1°C20.4°CCool / Refreshing (16°C – 20°C)
June12.7°C15.2°C18.1°CVery Cold (< 16°C)
July8.3°C12.9°C15°CVery Cold (< 16°C)
August10.5°C12.7°C15.8°CVery Cold (< 16°C)
SeptemberCurrent11.6°C13.6°C16.4°CVery Cold (< 16°C)
October13.8°C16.1°C18.9°CCool / Refreshing (16°C – 20°C)
November14.8°C18.7°C21.6°CCool / Refreshing (16°C – 20°C)
December18.5°C20.9°C23.1°CComfortable (20°C – 24°C)

Swimming FAQs for Praia do Hermenegildo

Is the sea warm enough to swim in Praia do Hermenegildo today?

Typical sea surface temperature in Praia do Hermenegildo this time of year is 13.6°C (56.5°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 Praia do Hermenegildo?

The highest water temperatures in Praia do Hermenegildo typically occur duringJanuary, February, March, when monthly averages reach peak seasonal levels.

What is the typical water temperature in Praia do Hermenegildo in September?

Historically in September, water temperatures in Praia do Hermenegildo average around13.6°C (56.5°F), fluctuating between a recorded minimum of 11.6°C and a maximum of 16.4°C.

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