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May Weather in Puerto Williams, Chile

Last updated: August 22, 2025

In May, the average temperature in Puerto Williams, Chile hovers around 4°C (39°F). Expect chilly nights with temperatures dipping to a minimum of -9°C (17°F), while daytime highs can reach up to 14°C (57°F). Be prepared for some wet weather, as precipitation averages 65 mm (2.5 in) over 16 days, with an average humidity of 86%.

May Temperature in Puerto Williams

In May in Puerto Williams, the average temperature is 4°C (39°F). Maximums can reach 14°C (57°F), while minimums can drop as low as -9°C (17°F). Pack warm clothing and be prepared for chilly conditions if you're planning to travel during this time.

May Weather in Puerto Williams: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Puerto Williams, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Puerto Williams, May typically has an average temperature of 4°C (39°F), with highs reaching up to 14°C (57°F) and lows dropping to around -9°C (17°F).
JanFebMarAprMayJunJulAugSepOctNovDec484946423833333537414548
Data source: Temperature data for Puerto Williams 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 Puerto Williams

In Puerto Williams in May, the total precipitation amount reaches 65 mm (2.5 inches) over a span of 16 days.

May Precipitation Trends in Puerto Williams

The chart displays monthly precipitation patterns in Puerto Williams, 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 Puerto Williams, May typically receives around 65 mm (2.5 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec120106977065483865627293103
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Puerto Williams

In Puerto Williams in May humidity is 86%. With an average temperature of 4°C (39°F), this humidity feels like a chilly mist enveloping you, making it essential to bundle up while exploring, as each breath comes with a damp chill that can be quite refreshing yet starkly invigorating for travelers.

May Average Humidity in Puerto Williams

This chart illustrates the average monthly humidity levels in Puerto Williams, 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 Puerto Williams is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%85%85%86%86%86%85%85%84%83%84%82%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Puerto Williams

In Puerto Williams in May, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Puerto Williams, you can visit Hourly UV Index in Puerto Williams.

Maximum UV Index Levels in Puerto Williams for May

The chart shows the monthly maximum UV Index (UVI) for Puerto Williams 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 Puerto Williams typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec98632113591211
Data source: Puerto Williams 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 Puerto Williams Compares to Other Months

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

This table compares monthly weather conditions in Puerto Williams, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (48°F)120 mm (4.7 inches)83%very high
February Weather9°C (49°F)106 mm (4.2 inches)85%very high
March Weather8°C (46°F)97 mm (3.8 inches)85%high
April Weather6°C (42°F)70 mm (2.8 inches)86%moderate
May Weather4°C (39°F)65 mm (2.5 inches)86%low
June Weather1°C (33°F)48 mm (1.9 inches)86%low
July Weather1°C (33°F)38 mm (1.5 inches)85%low
August Weather2°C (35°F)65 mm (2.6 inches)85%moderate
September Weather3°C (38°F)62 mm (2.4 inches)84%moderate
October Weather5°C (41°F)72 mm (2.8 inches)83%very high
November Weather7°C (46°F)93 mm (3.7 inches)84%extreme
December Weather9°C (48°F)103 mm (4.0 inches)82%extreme

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