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December Weather in Phon Sai, Thailand

Last updated: August 27, 2025

In December, the average temperature in Phon Sai, Thailand reaches a pleasant 24°C (76°F). However, temperatures can vary from a cool 13°C (55°F) at night to a warm 35°C (95°F) during the day. Expect a modest precipitation amount of 8 mm (0.3 in) over 1 day, accompanied by an average humidity level of 68%.

December Temperature in Phon Sai

In December in Phon Sai, the average temperature is 24°C (76°F). Maximums can reach 35°C (95°F) and minimums can be as low as 13°C (55°F). It's an ideal time for travelers seeking pleasant weather and a variety of outdoor activities.

December Weather in Phon Sai: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Phon Sai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Phon Sai, December typically has an average temperature of 24°C (76°F), with highs reaching up to 35°C (95°F) and lows dropping to around 13°C (55°F).
JanFebMarAprMayJunJulAugSepOctNovDec767884858585848382817976
Data source: Temperature data for Phon Sai 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 Phon Sai

In Phon Sai in December, the precipitation amount is 8 mm (0.3 in) over the course of 1 day.

December Precipitation Trends in Phon Sai

The chart displays monthly precipitation patterns in Phon Sai, 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 Phon Sai, December typically receives around 8 mm (0.3 inches) of precipitation spread over approximately 1 days.
JanFebMarAprMayJunJulAugSepOctNovDec5103365159139256253303171338
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Phon Sai

In Phon Sai in December humidity is 68%. With an average temperature of 24°C (76°F), this humidity feels like a warm, steamy embrace that makes traveling both invigorating and slightly exhausting, as the air clings to your skin and encourages leisurely breaks in the shade.

December Average Humidity in Phon Sai

This chart illustrates the average monthly humidity levels in Phon Sai, 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 Phon Sai is approximately 68%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec56%50%41%44%71%84%87%90%89%83%74%68%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Phon Sai

In Phon Sai 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 Phon Sai.

Maximum UV Index Levels in Phon Sai for December

The chart shows the monthly maximum UV Index (UVI) for Phon Sai 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 Phon Sai typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec10131415151314141312109
Data source: Phon Sai 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 Phon Sai Compares to Other Months

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

This table compares monthly weather conditions in Phon Sai, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather25°C (77°F)5 mm (0.2 inches)56%very high
February Weather26°C (78°F)10 mm (0.4 inches)50%extreme
March Weather29°C (84°F)33 mm (1.3 inches)41%extreme
April Weather29°C (85°F)65 mm (2.6 inches)44%extreme
May Weather30°C (85°F)159 mm (6.3 inches)71%extreme
June Weather29°C (85°F)139 mm (5.5 inches)83%extreme
July Weather29°C (84°F)256 mm (10.1 inches)87%extreme
August Weather28°C (83°F)253 mm (10.0 inches)90%extreme
September Weather28°C (83°F)303 mm (11.9 inches)89%extreme
October Weather27°C (81°F)171 mm (6.7 inches)83%extreme
November Weather26°C (80°F)32 mm (1.3 inches)74%very high
December Weather24°C (76°F)8 mm (0.3 inches)68%very high

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