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May Weather in Muara Siau, Indonesia

Last updated: August 23, 2025

In May, the average temperature in Muara Siau, Indonesia hovers around 25°C (77°F), with minimums dipping to 20°C (68°F) and maximums soaring to 31°C (89°F). Expect a bit of a wet spell, as precipitation averages 245 mm (9.6 in) over 27 days. Coupled with an average humidity of 78%, be prepared for a warm and somewhat humid experience!

May Temperature in Muara Siau

In May in Muara Siau, the average temperature is 25°C (77°F). The maximum can reach 31°C (89°F) and the minimum can be as low as 20°C (68°F). This pleasant climate makes Muara Siau an ideal destination for travelers seeking a comfortable outdoor experience.

May Weather in Muara Siau: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Muara Siau, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Muara Siau, May typically has an average temperature of 25°C (77°F), with highs reaching up to 31°C (89°F) and lows dropping to around 20°C (68°F).
JanFebMarAprMayJunJulAugSepOctNovDec757576767676757575767675
Data source: Temperature data for Muara Siau 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 Muara Siau

In Muara Siau in May, the precipitation amount is 245 mm (9.6 in) over the course of 27 days.

May Precipitation Trends in Muara Siau

The chart displays monthly precipitation patterns in Muara Siau, 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 Muara Siau, May typically receives around 245 mm (9.6 inches) of precipitation spread over approximately 27 days.
JanFebMarAprMayJunJulAugSepOctNovDec280337471399245189120137175298359355
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Muara Siau

In Muara Siau in May, humidity is 78%. With an average temperature of 25°C (77°F), this humidity feels like walking through a warm, damp blanket, making travel feel a bit more exhausting and sticky as you navigate the sights.

May Average Humidity in Muara Siau

This chart illustrates the average monthly humidity levels in Muara Siau, 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 Muara Siau is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%81%79%80%78%78%79%82%84%85%84%83%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Muara Siau

In Muara Siau in May, 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 Muara Siau, you can check here.

Maximum UV Index Levels in Muara Siau for May

The chart shows the monthly maximum UV Index (UVI) for Muara Siau 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 Muara Siau typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151617161412131515151515
Data source: Muara Siau 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 Muara Siau Compares to Other Months

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

This table compares monthly weather conditions in Muara Siau, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (75°F)280 mm (11.0 inches)83%extreme
February Weather24°C (75°F)337 mm (13.3 inches)80%extreme
March Weather24°C (76°F)471 mm (18.5 inches)79%extreme
April Weather24°C (76°F)399 mm (15.7 inches)80%extreme
May Weather25°C (77°F)245 mm (9.6 inches)78%extreme
June Weather24°C (76°F)189 mm (7.4 inches)78%extreme
July Weather24°C (75°F)120 mm (4.7 inches)79%extreme
August Weather24°C (75°F)137 mm (5.4 inches)82%extreme
September Weather24°C (76°F)175 mm (6.9 inches)84%extreme
October Weather24°C (76°F)298 mm (11.7 inches)85%extreme
November Weather24°C (76°F)358 mm (14.1 inches)84%extreme
December Weather24°C (76°F)355 mm (14.0 inches)83%extreme

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