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December Weather in Juntas, Costa Rica

Last updated: August 23, 2025

In December, the average temperature in Juntas, Costa Rica is a pleasant 25°C (77°F). Expect minimums of 20°C (67°F) and highs reaching 32°C (90°F). With an average humidity of 70%, you'll want to stay hydrated. Precipitation is typically light, with an average of 27 mm (1.1 in) over just 2 days. Enjoy the warm weather!

December Temperature in Juntas

In December in Juntas, the average temperature is 25°C (77°F). The maximum can reach 32°C (90°F), and the minimum can be as low as 20°C (67°F). This pleasant climate makes Juntas an ideal destination for travelers seeking enjoyable weather.

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

The chart illustrates December temperature patterns in Juntas, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Juntas, December typically has an average temperature of 25°C (77°F), with highs reaching up to 32°C (90°F) and lows dropping to around 20°C (67°F).
JanFebMarAprMayJunJulAugSepOctNovDec777979817978787777767777
Data source: Temperature data for Juntas 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 Juntas

In Juntas in December, the precipitation amount is 27 mm (1.1 in) over the course of 2 days.

December Precipitation Trends in Juntas

The chart displays monthly precipitation patterns in Juntas, 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 Juntas, December typically receives around 27 mm (1.1 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec9216029831417027834049514327
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Juntas

In Juntas in December, humidity is 70%. With an average temperature of 25°C (77°F), this humidity feels like walking through a warm, moist blanket that clings to your skin, making every step feel heavier as you explore the sights and sounds of your destination.

December Average Humidity in Juntas

This chart illustrates the average monthly humidity levels in Juntas, 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 Juntas is approximately 70%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec66%64%63%63%63%74%85%82%80%79%79%70%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Juntas

In Juntas in December, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Juntas.

Maximum UV Index Levels in Juntas for December

The chart shows the monthly maximum UV Index (UVI) for Juntas 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 Juntas typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec111314141414141313131110
Data source: Juntas 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 Juntas Compares to Other Months

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

This table compares monthly weather conditions in Juntas, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather25°C (78°F)9 mm (0.4 inches)66%extreme
February Weather26°C (79°F)2 mm (0.1 inches)64%extreme
March Weather26°C (80°F)1 mm (0.0 inches)63%extreme
April Weather27°C (81°F)60 mm (2.4 inches)63%extreme
May Weather26°C (79°F)298 mm (11.7 inches)63%extreme
June Weather25°C (78°F)314 mm (12.4 inches)74%extreme
July Weather25°C (78°F)170 mm (6.7 inches)85%extreme
August Weather25°C (78°F)278 mm (11.0 inches)82%extreme
September Weather25°C (77°F)340 mm (13.4 inches)80%extreme
October Weather25°C (76°F)495 mm (19.5 inches)79%extreme
November Weather25°C (77°F)143 mm (5.6 inches)79%extreme
December Weather25°C (77°F)27 mm (1.1 inches)70%very high

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