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December Weather in Ilo, Peru

Last updated: August 27, 2025

In Ilo, Peru during December, the average temperature is a pleasant 19°C (66°F). You can expect a minimum of 16°C (61°F) and a comfortable maximum of 22°C (71°F). With an average precipitation amount of only 6 mm (0.2 in) spread over 0 days, the weather is quite dry, complemented by an average humidity level of 84%. Enjoy the mild climate!

December Temperature in Ilo

In December in Ilo, the average temperature is 19°C (66°F), with maximums reaching 22°C (71°F) and minimums dropping to as low as 16°C (61°F). This mild climate makes Ilo an attractive destination for travelers seeking comfortable weather.

December Weather in Ilo: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Ilo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ilo, December typically has an average temperature of 19°C (66°F), with highs reaching up to 22°C (71°F) and lows dropping to around 16°C (61°F).
JanFebMarAprMayJunJulAugSepOctNovDec697068656361595959606366
Data source: Temperature data for Ilo 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.

December Precipitation in Ilo

In Ilo in December, the total precipitation amount is 6 mm (0.2 in), spread over a duration of 0 days.

December Precipitation Trends in Ilo

The chart displays monthly precipitation patterns in Ilo, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Ilo, December typically receives around 6 mm (0.2 inches) of precipitation spread over approximately 0 days.
JanFebMarAprMayJunJulAugSepOctNovDec1084235877546
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Ilo

In Ilo in December, humidity is 84%. With an average temperature of 19°C (66°F), this humidity feels like a warm, sticky embrace that can make traveling uncomfortable and exhausting, as the air clings to your skin, and every step taken feels heavier in the sultry atmosphere.

December Average Humidity in Ilo

This chart illustrates the average monthly humidity levels in Ilo, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Ilo is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%90%90%91%88%76%61%57%59%75%84%84%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Ilo

In Ilo in December, 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 Ilo.

Maximum UV Index Levels in Ilo for December

The chart shows the monthly maximum UV Index (UVI) for Ilo in December, 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 December, the maximum UV index in Ilo typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1515141310891113151515
Data source: Ilo December 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 December Weather in Ilo Compares to Other Months

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

This table compares monthly weather conditions in Ilo, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather20°C (69°F)10 mm (0.4 inches)89%extreme
February Weather21°C (70°F)8 mm (0.3 inches)90%extreme
March Weather20°C (69°F)4 mm (0.1 inches)90%extreme
April Weather18°C (66°F)2 mm (0.1 inches)91%extreme
May Weather17°C (63°F)3 mm (0.1 inches)88%very high
June Weather16°C (61°F)5 mm (0.2 inches)76%very high
July Weather15°C (59°F)8 mm (0.3 inches)61%very high
August Weather15°C (59°F)7 mm (0.3 inches)57%extreme
September Weather15°C (59°F)7 mm (0.3 inches)58%extreme
October Weather16°C (61°F)5 mm (0.2 inches)75%extreme
November Weather17°C (63°F)4 mm (0.2 inches)83%extreme
December Weather19°C (66°F)6 mm (0.2 inches)84%extreme

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