January Weather in Si Wilai, Thailand

Last updated: August 27, 2025

In January, the average temperature in Si Wilai, Thailand hovers around 23°C (73°F), making it a comfortable time to visit. Expect minimums of 9°C (48°F) and maximums reaching up to 34°C (93°F). Additionally, you might encounter some light precipitation, with an average of 7 mm (0.3 in) over just 1 day. The average humidity sits at 65%, adding a pleasant, slightly tropical touch to the air.

January Temperature in Si Wilai

In January in Si Wilai, the average temperature is 23°C (73°F), with maximums reaching up to 34°C (93°F) and minimums dropping as low as 9°C (48°F). It's a great time for travelers to enjoy pleasant weather while exploring the rich offerings of Si Wilai.

January Weather in Si Wilai: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Si Wilai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Si Wilai, January typically has an average temperature of 23°C (73°F), with highs reaching up to 34°C (93°F) and lows dropping to around 9°C (48°F).

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

January Precipitation in Si Wilai

In Si Wilai in January, the precipitation amount is 7 mm (0.3 in) over the course of 1 day.

January Precipitation Trends in Si Wilai

The chart displays monthly precipitation patterns in Si Wilai, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Si Wilai, January typically receives around 7 mm (0.3 inches) of precipitation spread over approximately 1 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Si Wilai

In Si Wilai in January, humidity is 65%. With an average temperature of 23°C (73°F), this humidity feels like a warm embrace that can make outdoor adventures a bit more strenuous, requiring frequent breaks and hydration but also creating a lush, vibrant atmosphere perfect for exploration.

January Average Humidity in Si Wilai

This chart illustrates the average monthly humidity levels in Si Wilai, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Si Wilai is approximately 65%, offering insight into how humid the weather typically is during this month.

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

January UV Index in Si Wilai

In Si Wilai in January, 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 Wilai.

Maximum UV Index Levels in Si Wilai for January

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

Data source: Si Wilai January 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 January Weather in Si Wilai Compares to Other Months

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

This table compares monthly weather conditions in Si Wilai, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	23°C (73°F)	7 mm (0.3 inches)	65%	very high
February Weather	24°C (75°F)	12 mm (0.5 inches)	63%	extreme
March Weather	27°C (81°F)	42 mm (1.7 inches)	54%	extreme
April Weather	29°C (84°F)	70 mm (2.8 inches)	47%	extreme
May Weather	29°C (84°F)	241 mm (9.5 inches)	67%	extreme
June Weather	28°C (83°F)	362 mm (14.3 inches)	81%	extreme
July Weather	28°C (82°F)	510 mm (20.1 inches)	92%	extreme
August Weather	28°C (82°F)	506 mm (19.9 inches)	93%	extreme
September Weather	28°C (83°F)	279 mm (11.0 inches)	85%	extreme
October Weather	27°C (81°F)	132 mm (5.2 inches)	78%	extreme
November Weather	25°C (78°F)	16 mm (0.6 inches)	73%	very high
December Weather	22°C (72°F)	3 mm (0.1 inches)	69%	very high