April Weather in Si Thep, Thailand

Last updated: August 27, 2025

In April, the average temperature in Si Thep, Thailand is a warm 30°C (87°F), with a range that can dip to a refreshing 20°C (68°F) and peak at a sizzling 41°C (106°F). Expect 83 mm (3.3 in) of precipitation spread over about 12 days, and experience a comfortable average humidity of 51%. Enjoy the vibrant climate while you explore!

April Temperature in Si Thep

In April in Si Thep, the average temperature is 30°C (87°F). Maximums can reach 41°C (106°F), while minimums can drop to as low as 20°C (68°F). Travelers should be prepared for hot days and mild nights while enjoying the vibrant atmosphere of Si Thep.

April Weather in Si Thep: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Si Thep, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Si Thep, April typically has an average temperature of 30°C (87°F), with highs reaching up to 41°C (106°F) and lows dropping to around 20°C (68°F).

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

April Precipitation in Si Thep

In Si Thep in April, the precipitation amount is 83 mm (3.3 in) distributed over the course of 12 days.

April Precipitation Trends in Si Thep

The chart displays monthly precipitation patterns in Si Thep, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Si Thep, April typically receives around 83 mm (3.3 inches) of precipitation spread over approximately 12 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

April Humidity in Si Thep

In Si Thep in April, humidity is 51%. With an average temperature of 30°C (87°F), this humidity feels like you are wrapped in a warm blanket; while exploring, you might find yourself needing to take more breaks and stay hydrated, as the pleasant warmth is accompanied by a slight stickiness that can make outdoor adventures a bit more challenging yet enjoyable.

April Average Humidity in Si Thep

This chart illustrates the average monthly humidity levels in Si Thep, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Si Thep is approximately 51%, offering insight into how humid the weather typically is during this month.

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

April UV Index in Si Thep

In Si Thep in April, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Si Thep, you can check here.

Maximum UV Index Levels in Si Thep for April

The chart shows the monthly maximum UV Index (UVI) for Si Thep in April, 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 April, the maximum UV index in Si Thep typically reaches 14, which falls under the extreme exposure category.

Data source: Si Thep April 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 April Weather in Si Thep Compares to Other Months

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

This table compares monthly weather conditions in Si Thep, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	26°C (80°F)	7 mm (0.3 inches)	50%	very high
February Weather	27°C (82°F)	18 mm (0.7 inches)	47%	extreme
March Weather	30°C (86°F)	30 mm (1.2 inches)	41%	extreme
April Weather	30°C (87°F)	83 mm (3.3 inches)	51%	extreme
May Weather	30°C (86°F)	130 mm (5.1 inches)	76%	extreme
June Weather	30°C (86°F)	159 mm (6.3 inches)	83%	extreme
July Weather	29°C (84°F)	245 mm (9.6 inches)	80%	extreme
August Weather	28°C (83°F)	266 mm (10.5 inches)	85%	extreme
September Weather	28°C (83°F)	251 mm (9.9 inches)	88%	extreme
October Weather	28°C (83°F)	177 mm (7.0 inches)	79%	extreme
November Weather	27°C (82°F)	15 mm (0.6 inches)	68%	very high
December Weather	26°C (79°F)	7 mm (0.3 inches)	59%	very high