May Weather in Isak, Indonesia

Last updated: August 23, 2025

In Isak, Indonesia, the average temperature in May hovers around 21°C (69°F), with minimums dipping to 15°C (59°F) and maximums soaring to 29°C (85°F). Expect 294 mm (11.6 in) of precipitation spread over 28 days, contributing to an average humidity level of 75%. Perfect for a cozy indoor retreat or an adventurous exploration of the lush scenery!

May Temperature in Isak

In May in Isak, the average temperature is 21°C (69°F), with maximums reaching 29°C (85°F) and minimums dropping to as low as 15°C (59°F). This mild climate makes Isak an ideal destination for travelers seeking comfortable weather and outdoor activities.

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

The chart illustrates May temperature patterns in Isak, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Isak, May typically has an average temperature of 21°C (69°F), with highs reaching up to 29°C (85°F) and lows dropping to around 15°C (59°F).
JanFebMarAprMayJunJulAugSepOctNovDec686868686969686868686767
Data source: Temperature data for Isak 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 Isak

In Isak in May, the total precipitation amount is 294 mm (11.6 in) over a duration of 28 days.

May Precipitation Trends in Isak

The chart displays monthly precipitation patterns in Isak, 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 Isak, May typically receives around 294 mm (11.6 inches) of precipitation spread over approximately 28 days.
JanFebMarAprMayJunJulAugSepOctNovDec163106157221294127158171224275362349
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Isak

In Isak in May, humidity is 75%. With an average temperature of 21°C (69°F), this humidity feels like a warm, sticky embrace that can make even a short walk feel exhausting for travelers, often leading to a longing for refreshing breezes or air-conditioned retreats.

May Average Humidity in Isak

This chart illustrates the average monthly humidity levels in Isak, 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 Isak is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%73%74%70%75%81%79%84%87%86%86%86%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Isak

In Isak in May, the maximum UV index is 16, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, making it crucial to take protective measures. For detailed information, you can refer to the Hourly UV Index in Isak.

Maximum UV Index Levels in Isak for May

The chart shows the monthly maximum UV Index (UVI) for Isak 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 Isak typically reaches 16, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151617171614131515151413
Data source: Isak 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 Isak Compares to Other Months

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

This table compares monthly weather conditions in Isak, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather20°C (68°F)163 mm (6.4 inches)80%extreme
February Weather20°C (68°F)106 mm (4.2 inches)73%extreme
March Weather20°C (69°F)157 mm (6.2 inches)74%extreme
April Weather20°C (69°F)220 mm (8.7 inches)69%extreme
May Weather21°C (69°F)294 mm (11.6 inches)75%extreme
June Weather20°C (69°F)127 mm (5.0 inches)81%extreme
July Weather20°C (69°F)158 mm (6.2 inches)79%extreme
August Weather20°C (68°F)171 mm (6.7 inches)84%extreme
September Weather20°C (68°F)224 mm (8.8 inches)86%extreme
October Weather20°C (68°F)275 mm (10.8 inches)86%extreme
November Weather20°C (67°F)362 mm (14.3 inches)86%extreme
December Weather20°C (68°F)348 mm (13.7 inches)86%extreme

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