Surat Thani, Thailand
Gulf of Thailand9.43°N, 100.02°EStation TH-SUR-BEA

หาดนาเทียน Sea Water Temperature

A tropical beach on the Gulf of Thailand, warmest around May at about 30.6°C. Today's reading, 7-day forecast, and monthly averages below.

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Water Temperature NowBuoy & Sentinel-3 SST

หาดนาเทียน water temperature

29.5
85.1°FTropical Warm (> 28°C)

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

+0°vs Sep avgGulf of Thailand9.43°N, 100.02°E
Activity Index:SwimmingSnorkelingSurfingTypical conditions
Marine Atmosphere Grid Live Marine Feed
Coastal Air
31°C
87.8°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
29.5°C
85.1°F
Waves: 1m
Tropical
ThuOct 1
29.8°C
85.6°F
Waves: 0.9m
Tropical
FriOct 2
29.9°C
85.8°F
Waves: 0.7m
Tropical
SatOct 3
29.8°C
85.6°F
Waves: 0.6m
Tropical
SunOct 4
29.5°C
85.1°F
Waves: 0.7m
Tropical
MonOct 5
29.2°C
84.6°F
Waves: 0.9m
Tropical
TueOct 6
29.1°C
84.4°F
Waves: 1m
Tropical
Forecast cooling trend: -0.4°C over 7 days at หาดนาเทียน.
Confidence: High

หาดนาเทียน Monthly Water Temperature Averages

Historical monthly climatology. The warmest water in หาดนาเทียน occurs inJanuary, February, March, April, May, June, July, August, September, October, November, December — peaking at30.6°C (87.1°F) in May.

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
30
Apr
31
May
30
Jun
30
Jul
29
Aug
Current
30
Sep
29
Oct
29
Nov
28
Dec
Full 12-month data table — min / avg / max & swimming comfort
MonthMin Water TempAverage Water TempMax Water TempSwimming Comfort
January25.9°C27.8°C29°CWarm & Ideal (24°C – 28°C)
February26.8°C28.2°C29.1°CTropical Warm (> 28°C)
March27.6°C29°C30.3°CTropical Warm (> 28°C)
April28.6°C30.2°C31.2°CTropical Warm (> 28°C)
May29.2°C30.6°C32.1°CTropical Warm (> 28°C)
June29°C30.2°C31.5°CTropical Warm (> 28°C)
July28.9°C29.8°C30.7°CTropical Warm (> 28°C)
August28°C29.4°C30.5°CTropical Warm (> 28°C)
SeptemberCurrent28.5°C29.5°C30.6°CTropical Warm (> 28°C)
October27.9°C29.1°C30.2°CTropical Warm (> 28°C)
November27.4°C28.7°C30.4°CTropical Warm (> 28°C)
December26.6°C28°C29.4°CTropical Warm (> 28°C)

Swimming FAQs for หาดนาเทียน

Is the sea warm enough to swim in หาดนาเทียน today?

Typical sea surface temperature in หาดนาเทียน this time of year is 29.5°C (85.1°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 หาดนาเทียน?

The highest water temperatures in หาดนาเทียน 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 หาดนาเทียน in September?

Historically in September, water temperatures in หาดนาเทียน average around29.5°C (85.1°F), fluctuating between a recorded minimum of 28.5°C and a maximum of 30.6°C.

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หาดนาเทียน Coastal Zone Map

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