Water temperature in Surat Thani in August

Is it warm enough to swim in Surat Thani in August? Average water temperature in Surat Thani in August is 29.3°C and therefore suitable for comfortable swimming. The warmest sea in Surat Thani in August is 30.5°C, and the coldest is 28°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Surat Thani

Changes water temperature in Surat Thani in August 2025, 2024

To get an accurate forecast for the water temperature in Surat Thani for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Surat Thani, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of August.

Sea temperature

Tides

Weather forecast

You can choose any other years:

Day	2025	2024	Min	Max
1 August	30.1°C	29.2°C	28.3°C	30.1°C
2 August	29.9°C	29.2°C	28.3°C	29.9°C
3 August	30.4°C	29.2°C	28.3°C	30.4°C
4 August	30.4°C	29.2°C	28.7°C	30.4°C
5 August	30.3°C	29.2°C	28.6°C	30.3°C
6 August	30.2°C	29.4°C	28.3°C	30.2°C
7 August	30.1°C	29.4°C	28.4°C	30.1°C
8 August	30.1°C	29.5°C	28.5°C	30.1°C
9 August	30.2°C	30°C	28.7°C	30.2°C
10 August	30.1°C	30.4°C	28.7°C	30.4°C
11 August	30.1°C	30.2°C	29°C	30.2°C
12 August	30°C	30.2°C	28.8°C	30.2°C
13 August	29.9°C	30.3°C	28.8°C	30.3°C
14 August	29.9°C	30.5°C	28.8°C	30.5°C
15 August	29.8°C	30.5°C	28.9°C	30.5°C

Day	2025	2024	Min	Max
16 August	29.8°C	30.5°C	29°C	30.5°C
17 August	29.6°C	30.2°C	29°C	30.3°C
18 August	29.5°C	30.5°C	29°C	30.5°C
19 August	29.4°C	30.4°C	28.8°C	30.4°C
20 August	29.3°C	30.2°C	28.8°C	30.3°C
21 August	29.2°C	30.1°C	28.4°C	30.5°C
22 August	29.1°C	29.8°C	28.3°C	30.3°C
23 August	29°C	29.7°C	28.2°C	30.2°C
24 August	29.1°C	29.7°C	28.3°C	29.8°C
25 August	29.1°C	29.7°C	28.5°C	30.4°C
26 August	29.1°C	29.6°C	28.4°C	30.2°C
27 August	29.1°C	29.5°C	28.4°C	30°C
28 August	29°C	29.4°C	28.5°C	29.9°C
29 August	29°C	29.4°C	28°C	29.6°C
30 August	29.1°C	29.5°C	28.7°C	29.7°C
31 August	29.1°C	29.6°C	28.8°C	30.1°C

Average water temperature in Surat Thani in August over a decade

2016	2017	2018	2019	2020
29.3°C	29.6°C	28.9°C	29.4°C	29.4°C

2021	2022	2023	2024	2025
29.2°C	29.5°C	29.4°C	29.8°C	30.2°C

Surat Thani sea state in August

Chart comparing the height of waves in Surat Thani in August over the past years. The red line indicates the height of the waves when swimming in the sea is prohibited. To view the current sea conditions, click on the graph.

Surat Thani water temperature during other months:

You can also view information about water temperature for other months by clicking on the month button below

Temperature in neighboring cities

The nearest locations with the average water temperature in August. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

	Avr	Min	Max
Koh Samui	29.7°C	28.4°C	31.2°C
Haad Rin	29.6°C	28.2°C	31°C
Koh Phangan	29.6°C	28.3°C	31°C
Ko Tao	29.4°C	27.8°C	30.7°C
Ko Phayam	28.8°C	27.4°C	30.8°C
Khao Lak	29°C	27.7°C	30.7°C
Ban Ao Nang	29.5°C	28.1°C	31.2°C
Krabi	29.5°C	28.1°C	31.3°C
Railay Beach	29.5°C	28.1°C	31.3°C
Ko Yao	29.4°C	28°C	31.5°C

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Our report for Surat Thani is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.

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Date (day and month)

Water temperature: min 16°C

Average temperature Maximum temperature