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Water temperature in Siem Reap in December

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Is it warm enough to swim in Siem Reap in December? Average water temperature in Siem Reap in December is 25.5°C and therefore suitable for comfortable swimming. The warmest water in Siem Reap in December is 29°C, and the coldest is 23°C. To find out the water temperature today and in the coming days, go to Current water temperature in Siem Reap

Changes water temperature in Siem Reap in December 2025, 2024

To get an accurate forecast for the water temperature in Siem Reap for any chosen month, compare two years within a 10 year range using the chart below.

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024
1 December 27°C
2 December 27°C
3 December 28°C
4 December 28°C
5 December 29°C
6 December27°C29°C
7 December27°C29°C
8 December26°C28°C
9 December26°C28°C
10 December26°C28°C
11 December26°C28°C
12 December26°C27°C
13 December27°C27°C
14 December27°C26°C
15 December27°C26°C
Day 2025 2024
16 December27°C26°C
17 December27°C26°C
18 December27°C25°C
19 December27°C25°C
20 December26°C25°C
21 December27°C25°C
22 December27°C24°C
23 December27°C24°C
24 December27°C24°C
25 December27°C25°C
26 December27°C25°C
27 December27°C26°C
28 December26°C26°C
29 December26°C26°C
30 December25°C26°C
31 December26°C26°C

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Siem Reap water temperature during other months:

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

Where is the warm sea water in December?

Want to know where the water temperature in December is good for swimming? Select the continent of interest, the day of the month and the required water temperature

Region
Date (day and month)
Water temperature: min 16°C
 Average temperature  Maximum temperature

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[1] - The "Blue Flag" is awarded to beaches which fulfill a number of criteria, including: the quality of the bathing water, which must be in accordance with the relevant European Union Directive environmental education and information and beach area management and safety.

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Our report for Siem Reap 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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