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Water temperature in Hanoi in August

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Is it warm enough to swim in Hanoi in August? Average water temperature in Hanoi in August is 28.9°C and therefore suitable for comfortable swimming. The warmest water in Hanoi in August is 32°C, and the coldest is 26°C. Average high air temperature in Hanoi in August is 32°C, and average low temperature is 26°C. To find out the water temperature today and in the coming days, go to Current water temperature in Hanoi

Changes water temperature in Hanoi in August 2025, 2024

To get an accurate forecast for the water temperature in Hanoi 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 August31°C 
2 August31°C28°C
3 August31°C28°C
4 August31°C 
5 August31°C 
6 August31°C30°C
7 August31°C31°C
8 August31°C31°C
9 August31°C32°C
10 August30°C 
11 August31°C31°C
12 August31°C 
13 August30°C 
14 August29°C30°C
15 August29°C29°C
Day 2025 2024
16 August29°C30°C
17 August28°C30°C
18 August27°C30°C
19 August27°C30°C
20 August28°C30°C
21 August28°C29°C
22 August28°C29°C
23 August28°C29°C
24 August28°C29°C
25 August27°C29°C
26 August27°C29°C
27 August27°C30°C
28 August27°C30°C
29 August27°C30°C
30 August27°C30°C
31 August27°C30°C

Average water temperature in Hanoi in August over a decade

20162017201820192020
29.3°C29.2°C28.6°C28.4°C28.3°C
20212022202320242025
29.6°C27.7°C28.9°C29.8°C

Weather and climate in Hanoi in August

This data display average monthly climate indicators in Hanoi in August based on our historical weather readings over a period of ten years. In addition to temperature, we include data on the number of rainy and sunny days so you can have all the information about your destination before your trip

  • Average HIGH temperature32°C
  • Average LOW temperature26°C
  • Average humidity
    82
  • Average rainfall days17 days
  • Average rainfall12.5''/318mm
  • Average daylight13h
  • Average sunshine5.3h
  • Average UV index12

Hanoi 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 August?

Want to know where the water temperature in August 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 Hanoi 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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