December Weather in Phanom, Thailand

Last updated: August 27, 2025

In December, the average temperature in Phanom, Thailand is a pleasant 25°C (78°F), with minimums dipping to 19°C (67°F) and maximums reaching as high as 33°C (92°F). Travelers should prepare for 130 mm (5.1 in) of precipitation spread over 16 days, contributing to an average humidity of 83%.

December Temperature in Phanom

In December in Phanom, the average temperature is 25°C (78°F), with maximums reaching 33°C (92°F) and minimums dropping to as low as 19°C (67°F). This pleasant weather makes Phanom an ideal destination for travelers looking to enjoy comfortable temperatures and outdoor activities.

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

The chart illustrates December temperature patterns in Phanom, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Phanom, December typically has an average temperature of 25°C (78°F), with highs reaching up to 33°C (92°F) and lows dropping to around 19°C (67°F).

Data source: Temperature data for Phanom generated using information from the Copernicus Climate Change Service.

December Precipitation in Phanom

In Phanom in December, the precipitation amount is 130 mm (5.1 in) spread over 16 days.

December Precipitation Trends in Phanom

The chart displays monthly precipitation patterns in Phanom, 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 Phanom, December typically receives around 130 mm (5.1 inches) of precipitation spread over approximately 16 days.

Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

December Humidity in Phanom

In Phanom in December, humidity is 83%. With an average temperature of 25°C (78°F), this humidity feels like stepping into a warm, damp embrace, making travel sticky and exhausting, as each movement can leave you drenched in sweat.

December Average Humidity in Phanom

This chart illustrates the average monthly humidity levels in Phanom, 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 Phanom is approximately 83%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Phanom

In Phanom in December, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Phanom.

Maximum UV Index Levels in Phanom for December

The chart shows the monthly maximum UV Index (UVI) for Phanom 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 Phanom typically reaches 11, which falls under the extreme exposure category.

Data source: Phanom 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 Phanom Compares to Other Months

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

This table compares monthly weather conditions in Phanom, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	26°C (79°F)	97 mm (3.8 inches)	72%	extreme
February Weather	27°C (80°F)	25 mm (1.0 inches)	68%	extreme
March Weather	28°C (83°F)	62 mm (2.5 inches)	68%	extreme
April Weather	28°C (82°F)	214 mm (8.4 inches)	69%	extreme
May Weather	27°C (81°F)	254 mm (10.0 inches)	77%	extreme
June Weather	27°C (80°F)	227 mm (8.9 inches)	86%	extreme
July Weather	27°C (80°F)	203 mm (8.0 inches)	86%	extreme
August Weather	26°C (80°F)	199 mm (7.8 inches)	88%	extreme
September Weather	26°C (79°F)	260 mm (10.2 inches)	87%	extreme
October Weather	26°C (79°F)	316 mm (12.4 inches)	86%	extreme
November Weather	26°C (79°F)	238 mm (9.4 inches)	87%	extreme
December Weather	25°C (78°F)	130 mm (5.1 inches)	83%	extreme