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December Weather in Hoai An, Vietnam

Last updated: August 28, 2025

In December, the average temperature in Hoai An, Vietnam is a pleasant 23°C (75°F). With minimums dipping to 18°C (65°F) and maximums reaching 29°C (84°F), it's a comfortable time of year. However, be prepared for 239 mm (9.4 in) of precipitation over 21 days, reflecting the region's high humidity levels, which average a balmy 89%. Perfect weather for cozy indoor activities or vibrant outdoor adventures!

December Temperature in Hoai An

In December in Hoai An, the average temperature is 23°C (75°F), with maximums reaching 29°C (84°F) and minimums dropping to as low as 18°C (65°F). This pleasant weather makes it an ideal time for traveling and exploring all that Hoai An has to offer.

December Weather in Hoai An: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Hoai An, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hoai An, December typically has an average temperature of 23°C (75°F), with highs reaching up to 29°C (84°F) and lows dropping to around 18°C (65°F).
JanFebMarAprMayJunJulAugSepOctNovDec737478818486858583807774
Data source: Temperature data for Hoai An generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Hoai An

In Hoai An in December, the precipitation amount is 239 mm (9.4 in) over a period of 21 days.

December Precipitation Trends in Hoai An

The chart displays monthly precipitation patterns in Hoai An, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Hoai An, December typically receives around 239 mm (9.4 inches) of precipitation spread over approximately 21 days.
JanFebMarAprMayJunJulAugSepOctNovDec8044396413284107128215349442239
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Hoai An

In Hoai An in December, humidity is 89%. With an average temperature of 23°C (75°F), this humidity feels like stepping into a warm, damp blanket, making travel feel heavy and sticky, and leaving visitors in search of cool, shaded spaces to find relief.

December Average Humidity in Hoai An

This chart illustrates the average monthly humidity levels in Hoai An, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Hoai An is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%83%78%75%80%85%85%87%88%90%91%89%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Hoai An

In Hoai An in December, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Hoai An.

Maximum UV Index Levels in Hoai An for December

The chart shows the monthly maximum UV Index (UVI) for Hoai An in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Hoai An typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec11131515151315151413119
Data source: Hoai An December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How December Weather in Hoai An Compares to Other Months

Weather in Hoai An varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Hoai An, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Hoai An, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather23°C (74°F)80 mm (3.1 inches)86%extreme
February Weather23°C (74°F)44 mm (1.7 inches)83%extreme
March Weather26°C (78°F)39 mm (1.5 inches)78%extreme
April Weather27°C (81°F)64 mm (2.5 inches)75%extreme
May Weather29°C (84°F)132 mm (5.2 inches)80%extreme
June Weather30°C (86°F)84 mm (3.3 inches)85%extreme
July Weather30°C (85°F)107 mm (4.2 inches)85%extreme
August Weather30°C (85°F)127 mm (5.0 inches)87%extreme
September Weather28°C (83°F)214 mm (8.4 inches)88%extreme
October Weather27°C (80°F)349 mm (13.8 inches)90%extreme
November Weather25°C (78°F)442 mm (17.4 inches)91%extreme
December Weather23°C (75°F)239 mm (9.4 inches)89%very high

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