December Weather in Si That, Thailand

Last updated: August 27, 2025

In December, the average temperature in Si That, Thailand is a pleasant 23°C (74°F). Expect delightful warmth, with temperatures ranging from a minimum of 11°C (52°F) to a maximum of 34°C (94°F). While you'll enjoy this inviting climate, be prepared for a touch of moisture with 6 mm (0.2 in) of precipitation spread over just 1 day. Overall, the average humidity sits at a comfortable 66%, making it a perfect time to explore!

December Temperature in Si That

In December in Si That, the average temperature is 23°C (74°F), with maximums reaching up to 34°C (94°F) and minimums dropping as low as 11°C (52°F). This climate makes Si That an ideal destination for travelers seeking warm weather with pleasant evenings.

December Weather in Si That: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Si That, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Si That, December typically has an average temperature of 23°C (74°F), with highs reaching up to 34°C (94°F) and lows dropping to around 11°C (52°F).

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

December Precipitation in Si That

In Si That in December, the precipitation amount is 6 mm (0.2 in) over the course of 1 day.

December Precipitation Trends in Si That

The chart displays monthly precipitation patterns in Si That, 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 Si That, December typically receives around 6 mm (0.2 inches) of precipitation spread over approximately 1 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 Si That

In Si That in December humidity is 66%. With an average temperature of 23°C (74°F), this humidity feels like a warm embrace, making outdoor activities slightly uncomfortable but still enjoyable for travelers who are properly hydrated and prepared for the moist conditions.

December Average Humidity in Si That

This chart illustrates the average monthly humidity levels in Si That, 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 Si That is approximately 66%, 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 Si That

In Si That 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 Si That.

Maximum UV Index Levels in Si That for December

The chart shows the monthly maximum UV Index (UVI) for Si That 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 Si That typically reaches 9, which falls under the very high exposure category.

Data source: Si That 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 Si That Compares to Other Months

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

This table compares monthly weather conditions in Si That, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	24°C (75°F)	4 mm (0.2 inches)	59%	very high
February Weather	25°C (77°F)	14 mm (0.6 inches)	54%	extreme
March Weather	28°C (83°F)	36 mm (1.4 inches)	45%	extreme
April Weather	29°C (85°F)	80 mm (3.1 inches)	40%	extreme
May Weather	29°C (85°F)	167 mm (6.6 inches)	65%	extreme
June Weather	29°C (85°F)	157 mm (6.2 inches)	82%	extreme
July Weather	29°C (84°F)	266 mm (10.5 inches)	90%	extreme
August Weather	28°C (83°F)	235 mm (9.3 inches)	92%	extreme
September Weather	28°C (83°F)	223 mm (8.8 inches)	86%	extreme
October Weather	27°C (81°F)	117 mm (4.6 inches)	80%	extreme
November Weather	26°C (79°F)	17 mm (0.7 inches)	72%	very high
December Weather	23°C (74°F)	6 mm (0.2 inches)	66%	very high