April Weather in Sleman, Indonesia

Last updated: August 23, 2025

In April, the average temperature in Sleman, Indonesia reaches a warm 26°C (80°F), with minimums dipping to 21°C (70°F) and maximums soaring to 33°C (91°F). Expect a significant amount of precipitation, totaling 263 mm (10.4 in) over 27 days, contributing to an average humidity of 80%. Stay prepared for a humid and rainy month!

April Temperature in Sleman

In April in Sleman, the average temperature is 26°C (80°F). The maximum can reach 33°C (91°F) and the minimum can be as low as 21°C (70°F). This pleasant climate makes Sleman an ideal destination for travelers seeking warm weather and outdoor activities.

April Weather in Sleman: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Sleman, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sleman, April typically has an average temperature of 26°C (80°F), with highs reaching up to 33°C (91°F) and lows dropping to around 21°C (70°F).

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

April Precipitation in Sleman

In Sleman in April, the precipitation amount is 263 mm (10.4 in) during 27 days of rainfall.

April Precipitation Trends in Sleman

The chart displays monthly precipitation patterns in Sleman, 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 Sleman, April typically receives around 263 mm (10.4 inches) of precipitation spread over approximately 27 days.

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

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Millimeters (mm) Inches (in)

April Humidity in Sleman

In Sleman in April humidity is 80%. With an average temperature of 26°C (80°F), this humidity feels like a warm, enveloping blanket, making it quite uncomfortable for traveling. The thick, heavy air can leave you feeling sticky and fatigued, making outdoor activities more challenging and necessitating frequent breaks for hydration and cooling down.

April Average Humidity in Sleman

This chart illustrates the average monthly humidity levels in Sleman, 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 Sleman is approximately 80%, 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 Sleman

In Sleman 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 Sleman, you can check here.

Maximum UV Index Levels in Sleman for April

The chart shows the monthly maximum UV Index (UVI) for Sleman 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 Sleman typically reaches 14, which falls under the extreme exposure category.

Data source: Sleman 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 Sleman Compares to Other Months

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

This table compares monthly weather conditions in Sleman, 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 (79°F)	320 mm (12.6 inches)	82%	extreme
February Weather	26°C (79°F)	358 mm (14.1 inches)	86%	extreme
March Weather	26°C (79°F)	330 mm (13.0 inches)	84%	extreme
April Weather	26°C (80°F)	263 mm (10.4 inches)	80%	extreme
May Weather	26°C (80°F)	112 mm (4.4 inches)	81%	extreme
June Weather	25°C (78°F)	99 mm (3.9 inches)	81%	very high
July Weather	24°C (76°F)	25 mm (1.0 inches)	78%	extreme
August Weather	24°C (75°F)	25 mm (1.0 inches)	74%	extreme
September Weather	25°C (76°F)	84 mm (3.3 inches)	70%	extreme
October Weather	25°C (78°F)	162 mm (6.4 inches)	72%	extreme
November Weather	26°C (79°F)	382 mm (15.1 inches)	73%	extreme
December Weather	26°C (79°F)	364 mm (14.3 inches)	75%	extreme