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December Weather in Phonthong, Laos

Last updated: August 23, 2025

In December, the average temperature in Phonthong, Laos is a mild 25°C (77°F), making it a pleasant time to visit. Expect temperatures to range from a cool 13°C (55°F) to a warm 35°C (96°F), providing a diverse experience. With a modest precipitation amount of 7 mm (0.3 in) over just 2 days, you can anticipate mostly dry conditions. However, the humidity is notably high at 82%, so be prepared for some stickiness in the air!

December Temperature in Phonthong

In December in Phonthong, the average temperature is 25°C (77°F). Maximums can reach 35°C (96°F) and minimums can be as low as 13°C (55°F). This pleasant climate makes Phonthong an ideal destination for travelers seeking both warmth and comfortable temperatures.

December Weather in Phonthong: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Phonthong, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Phonthong, December typically has an average temperature of 25°C (77°F), with highs reaching up to 35°C (96°F) and lows dropping to around 13°C (55°F).
JanFebMarAprMayJunJulAugSepOctNovDec787983848482818181807977
Data source: Temperature data for Phonthong 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 Phonthong

In Phonthong in December, the precipitation amount is 7 mm (0.3 in) over a period of 2 days.

December Precipitation Trends in Phonthong

The chart displays monthly precipitation patterns in Phonthong, 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 Phonthong, December typically receives around 7 mm (0.3 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec232150131282467427347208377
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Phonthong

In Phonthong in December, humidity is 82%. With an average temperature of 25°C (77°F), this humidity feels like a warm, oppressive blanket enveloping you as you explore, making every step feel more laborious and prompting the need for frequent hydration breaks.

December Average Humidity in Phonthong

This chart illustrates the average monthly humidity levels in Phonthong, 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 Phonthong is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec74%65%53%49%73%86%91%93%91%88%85%82%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Phonthong

In Phonthong 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 Phonthong.

Maximum UV Index Levels in Phonthong for December

The chart shows the monthly maximum UV Index (UVI) for Phonthong 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 Phonthong typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec10131415141315141412109
Data source: Phonthong 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 Phonthong Compares to Other Months

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

This table compares monthly weather conditions in Phonthong, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather25°C (78°F)2 mm (0.1 inches)74%very high
February Weather26°C (79°F)3 mm (0.1 inches)65%extreme
March Weather29°C (84°F)21 mm (0.8 inches)53%extreme
April Weather29°C (85°F)50 mm (2.0 inches)49%extreme
May Weather29°C (84°F)131 mm (5.2 inches)72%extreme
June Weather28°C (82°F)282 mm (11.1 inches)86%extreme
July Weather27°C (81°F)467 mm (18.4 inches)91%extreme
August Weather27°C (81°F)427 mm (16.8 inches)93%extreme
September Weather27°C (81°F)347 mm (13.7 inches)91%extreme
October Weather27°C (80°F)208 mm (8.2 inches)88%extreme
November Weather26°C (79°F)37 mm (1.5 inches)85%very high
December Weather25°C (77°F)7 mm (0.3 inches)82%very high

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