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May Weather in Pematangsiantar, Indonesia

Last updated: August 23, 2025

In May, the average temperature in Pematangsiantar, Indonesia is a pleasant 25°C (78°F). Expect daily fluctuations with a minimum of 21°C (69°F) and a peak at 32°C (89°F). However, be prepared for the 344 mm (13.6 in) of precipitation that can fall during this month, leading to an average humidity of 82%. Perfect weather for those who enjoy a tropical vibe!

May Temperature in Pematangsiantar

In May in Pematangsiantar, the average temperature is 25°C (78°F). Maximums can reach 32°C (89°F), while minimums can be as low as 21°C (69°F). This pleasant climate makes Pematangsiantar an ideal destination for travelers seeking warm and enjoyable weather.

May Weather in Pematangsiantar: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Pematangsiantar, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Pematangsiantar, May typically has an average temperature of 25°C (78°F), with highs reaching up to 32°C (89°F) and lows dropping to around 21°C (69°F).
JanFebMarAprMayJunJulAugSepOctNovDec757676777777777676767675
Data source: Temperature data for Pematangsiantar 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.

May Precipitation in Pematangsiantar

In Pematangsiantar in May, the total precipitation amount is 344 mm (13.6 in) over the course of 30 days.

May Precipitation Trends in Pematangsiantar

The chart displays monthly precipitation patterns in Pematangsiantar, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Pematangsiantar, May typically receives around 344 mm (13.6 inches) of precipitation spread over approximately 30 days.
JanFebMarAprMayJunJulAugSepOctNovDec210176185230344281224251379339407322
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Pematangsiantar

In Pematangsiantar in May, humidity is 82%. With an average temperature of 25°C (78°F), this humidity feels like a warm, heavy blanket wrapping around you, making outdoor activities a bit more challenging and encouraging you to seek shade or a cool spot during your travels.

May Average Humidity in Pematangsiantar

This chart illustrates the average monthly humidity levels in Pematangsiantar, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Pematangsiantar is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%74%74%77%83%85%84%87%89%89%88%88%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Pematangsiantar

In Pematangsiantar in May, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in Pematangsiantar.

Maximum UV Index Levels in Pematangsiantar for May

The chart shows the monthly maximum UV Index (UVI) for Pematangsiantar in May, 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 May, the maximum UV index in Pematangsiantar typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec131516151512131415151412
Data source: Pematangsiantar May 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 May Weather in Pematangsiantar Compares to Other Months

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

This table compares monthly weather conditions in Pematangsiantar, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (76°F)210 mm (8.3 inches)83%extreme
February Weather24°C (76°F)176 mm (6.9 inches)74%extreme
March Weather25°C (77°F)185 mm (7.3 inches)74%extreme
April Weather25°C (77°F)230 mm (9.0 inches)77%extreme
May Weather25°C (78°F)344 mm (13.6 inches)82%extreme
June Weather25°C (77°F)281 mm (11.1 inches)85%extreme
July Weather25°C (77°F)224 mm (8.8 inches)84%extreme
August Weather25°C (77°F)251 mm (9.9 inches)87%extreme
September Weather24°C (76°F)379 mm (14.9 inches)89%extreme
October Weather24°C (76°F)339 mm (13.3 inches)89%extreme
November Weather24°C (76°F)407 mm (16.0 inches)88%extreme
December Weather24°C (76°F)322 mm (12.7 inches)88%extreme

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