La Paz, El Salvador
Gulf of Mexico13.35°N, 89.03°WStation EL-LAP-PLA

Playa San Marcelino Sea Water Temperature

A tropical beach on the Gulf of Mexico, warmest around August at about 30.3°C. Today's reading, 7-day forecast, and monthly averages below.

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

Playa San Marcelino water temperature

29.8
85.6°FTropical Warm (> 28°C)

Very warm bath-like water. Zero chill, exceptional for relaxation and snorkeling.

+0°vs Sep avgGulf of Mexico13.35°N, 89.03°W
Activity Index:SwimmingSnorkelingSurfingTypical conditions
Marine Atmosphere Grid Live Marine Feed
Coastal Air
31°C
88.3°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
29.8°C
85.6°F
Waves: 1m
Tropical
ThuOct 1
30.1°C
86.2°F
Waves: 0.9m
Tropical
FriOct 2
30.2°C
86.4°F
Waves: 0.7m
Tropical
SatOct 3
30.1°C
86.2°F
Waves: 0.6m
Tropical
SunOct 4
29.8°C
85.6°F
Waves: 0.7m
Tropical
MonOct 5
29.5°C
85.1°F
Waves: 0.9m
Tropical
TueOct 6
29.4°C
84.9°F
Waves: 1m
Tropical
Forecast cooling trend: -0.4°C over 7 days at Playa San Marcelino.
Confidence: High

Playa San Marcelino Monthly Water Temperature Averages

Historical monthly climatology. The warmest water in Playa San Marcelino occurs inJanuary, February, March, April, May, June, July, August, September, October, November, December — peaking at30.3°C (86.5°F) in August.

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

Hover a bar for details
Current month Comfortable (20–24°C) Warm (24°C+) Cool (<20°C)
28
Jan
28
Feb
29
Mar
29
Apr
30
May
30
Jun
30
Jul
30
Aug
Current
30
Sep
29
Oct
29
Nov
29
Dec
Full 12-month data table — min / avg / max & swimming comfort
MonthMin Water TempAverage Water TempMax Water TempSwimming Comfort
January26.5°C28.1°C29.2°CTropical Warm (> 28°C)
February26.4°C28.2°C28.9°CTropical Warm (> 28°C)
March27.3°C28.7°C29.6°CTropical Warm (> 28°C)
April28.2°C29.4°C30.2°CTropical Warm (> 28°C)
May28.2°C29.8°C30.6°CTropical Warm (> 28°C)
June28.8°C29.9°C31°CTropical Warm (> 28°C)
July29.1°C30.1°C31.4°CTropical Warm (> 28°C)
August28.9°C30.3°C31.9°CTropical Warm (> 28°C)
SeptemberCurrent27.8°C29.8°C31.1°CTropical Warm (> 28°C)
October26.8°C29.3°C31.1°CTropical Warm (> 28°C)
November28.3°C29.3°C30.6°CTropical Warm (> 28°C)
December27.1°C28.7°C29.6°CTropical Warm (> 28°C)

Swimming FAQs for Playa San Marcelino

Is the sea warm enough to swim in Playa San Marcelino today?

Typical sea surface temperature in Playa San Marcelino this time of year is 29.8°C (85.6°F) — classified as Tropical Warm (> 28°C). Very warm bath-like water. Zero chill, exceptional for relaxation and snorkeling. Live readings load automatically.

What are the warmest months for swimming in Playa San Marcelino?

The highest water temperatures in Playa San Marcelino typically occur duringJanuary, February, March, April, May, June, July, August, September, October, November, December, when monthly averages reach peak seasonal levels.

What is the typical water temperature in Playa San Marcelino in September?

Historically in September, water temperatures in Playa San Marcelino average around29.8°C (85.6°F), fluctuating between a recorded minimum of 27.8°C and a maximum of 31.1°C.

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Playa San Marcelino Coastal Zone Map

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