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December Weather in Phayao, Thailand

Last updated: August 27, 2025

In December, the average temperature in Phayao, Thailand is a comfortable 22°C (72°F), with extremes ranging from a chilly 7°C (45°F) to a warm 33°C (92°F). Expect 18 mm (0.7 in) of precipitation over about 3 days, accompanied by an average humidity level of 56%.

December Temperature in Phayao

In December in Phayao, the average temperature is 22°C (72°F), with maximums reaching 33°C (92°F) and minimums dropping as low as 7°C (45°F). This diverse temperature range makes Phayao an ideal destination for travelers seeking both warmth and the chance to enjoy cooler, refreshing evenings.

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

The chart illustrates December temperature patterns in Phayao, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Phayao, December typically has an average temperature of 22°C (72°F), with highs reaching up to 33°C (92°F) and lows dropping to around 7°C (45°F).
JanFebMarAprMayJunJulAugSepOctNovDec727582838584838282807771
Data source: Temperature data for Phayao 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 Phayao

In Phayao in December, the precipitation amount is 18 mm (0.7 in) over a span of 3 days.

December Precipitation Trends in Phayao

The chart displays monthly precipitation patterns in Phayao, 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 Phayao, December typically receives around 18 mm (0.7 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec23941091241612282631771322118
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Phayao

In Phayao in December humidity is 56%. With an average temperature of 22°C (72°F), this humidity feels like a warm embrace, making it quite comfortable for traveling while also adding a touch of stickiness that encourages you to hydrate and seek out refreshing breaks in the shade.

December Average Humidity in Phayao

This chart illustrates the average monthly humidity levels in Phayao, 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 Phayao is approximately 56%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec51%46%38%36%64%81%83%91%83%67%61%56%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Phayao

In Phayao in December, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Phayao.

Maximum UV Index Levels in Phayao for December

The chart shows the monthly maximum UV Index (UVI) for Phayao 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 Phayao typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec9101213141414141413108
Data source: Phayao 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 Phayao Compares to Other Months

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

This table compares monthly weather conditions in Phayao, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather22°C (72°F)23 mm (0.9 inches)51%very high
February Weather24°C (75°F)9 mm (0.4 inches)46%very high
March Weather28°C (82°F)4 mm (0.2 inches)38%extreme
April Weather29°C (84°F)109 mm (4.3 inches)36%extreme
May Weather29°C (85°F)124 mm (4.9 inches)63%extreme
June Weather29°C (84°F)161 mm (6.3 inches)81%extreme
July Weather28°C (83°F)228 mm (9.0 inches)83%extreme
August Weather28°C (82°F)263 mm (10.4 inches)91%extreme
September Weather28°C (82°F)177 mm (7.0 inches)83%extreme
October Weather27°C (80°F)132 mm (5.2 inches)67%extreme
November Weather25°C (77°F)21 mm (0.8 inches)60%very high
December Weather22°C (72°F)18 mm (0.7 inches)56%very high

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