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April Weather in Si Wilai, Thailand

Last updated: August 27, 2025

The average temperature in Si Wilai, Thailand during April is 29°C (84°F), with fluctuations ranging from a minimum of 16°C (61°F) to a scorching maximum of 41°C (105°F). Expect about 70 mm (2.8 in) of precipitation spread over 12 days, while the average humidity sits comfortably at 47%.

April Temperature in Si Wilai

In April in Si Wilai, the average temperature is 29°C (84°F). Maximum temperatures can reach 41°C (105°F), while minimums can dip as low as 16°C (61°F). Be prepared for warm weather, and ensure you have both light clothing for the heat and layers for the cooler evenings.

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

The chart illustrates April 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, April typically has an average temperature of 29°C (84°F), with highs reaching up to 41°C (105°F) and lows dropping to around 16°C (61°F).
JanFebMarAprMayJunJulAugSepOctNovDec737581848483828282817872
Data source: Temperature data for Si Wilai 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.

April Precipitation in Si Wilai

In Si Wilai in April, the precipitation amount is 70 mm (2.8 in) over the course of 12 days.

April Precipitation Trends in Si Wilai

The chart displays monthly precipitation patterns in Si Wilai, 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 Wilai, April typically receives around 70 mm (2.8 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec7124271241362510506279132163
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Si Wilai

In Si Wilai in April, humidity is 47%. With an average temperature of 29°C (84°F), this humidity feels like a warm, pleasant embrace, making it ideal for leisurely explorations or exploring the local sights while providing a comfortable backdrop for outdoor activities.

April Average Humidity in Si Wilai

This chart illustrates the average monthly humidity levels in Si Wilai, 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 Wilai is approximately 47%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec65%63%54%47%67%81%92%93%85%78%73%69%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Si Wilai

In Si Wilai 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 Wilai, you can check here.

Maximum UV Index Levels in Si Wilai for April

The chart shows the monthly maximum UV Index (UVI) for Si Wilai 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 Wilai typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec9111314141314141412108
Data source: Si Wilai 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 Wilai Compares to Other Months

Weather in Si Wilai varies notably across the year, with each month offering distinct climate conditions. This page compares April’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 April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather23°C (73°F)7 mm (0.3 inches)65%very high
February Weather24°C (75°F)12 mm (0.5 inches)63%extreme
March Weather27°C (81°F)42 mm (1.7 inches)54%extreme
April Weather29°C (84°F)70 mm (2.8 inches)47%extreme
May Weather29°C (84°F)241 mm (9.5 inches)67%extreme
June Weather28°C (83°F)362 mm (14.3 inches)81%extreme
July Weather28°C (82°F)510 mm (20.1 inches)92%extreme
August Weather28°C (82°F)506 mm (19.9 inches)93%extreme
September Weather28°C (83°F)279 mm (11.0 inches)85%extreme
October Weather27°C (81°F)132 mm (5.2 inches)78%extreme
November Weather25°C (78°F)16 mm (0.6 inches)73%very high
December Weather22°C (72°F)3 mm (0.1 inches)69%very high

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