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December Weather in San Isidro, Nicaragua

Last updated: August 31, 2025

In December, the average temperature in San Isidro, Nicaragua is a pleasant 22°C (73°F), making it an ideal time to explore. Expect the minimum temperatures to dip to 15°C (58°F), with daytime highs reaching up to 29°C (85°F). During this period, precipitation is minimal, averaging only 13 mm (0.5 in) over 3 days, while the average humidity hovers around 56%. Perfect weather for outdoor adventures!

December Temperature in San Isidro

In December in San Isidro, the average temperature is 22°C (73°F). The maximum can reach 29°C (85°F), while the minimum can drop to as low as 15°C (58°F). This mild climate makes it an ideal time for travelers to explore and enjoy outdoor activities.

December Weather in San Isidro: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in San Isidro, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Isidro, December typically has an average temperature of 22°C (73°F), with highs reaching up to 29°C (85°F) and lows dropping to around 15°C (58°F).
JanFebMarAprMayJunJulAugSepOctNovDec727475787775757575747372
Data source: Temperature data for San Isidro 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 San Isidro

In San Isidro in December, the precipitation amount is 13 mm (0.5 in) over a span of 3 days.

December Precipitation Trends in San Isidro

The chart displays monthly precipitation patterns in San Isidro, 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 San Isidro, December typically receives around 13 mm (0.5 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec758362971826814120830510013
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in San Isidro

In San Isidro in December humidity is 56%. With an average temperature of 22°C (73°F), this humidity feels like a warm embrace, making traveling quite enjoyable but requiring occasional breaks to stay refreshed and hydrated.

December Average Humidity in San Isidro

This chart illustrates the average monthly humidity levels in San Isidro, 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 San Isidro is approximately 56%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec56%54%51%50%50%55%65%64%69%68%61%56%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in San Isidro

In San Isidro 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 San Isidro.

Maximum UV Index Levels in San Isidro for December

The chart shows the monthly maximum UV Index (UVI) for San Isidro 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 San Isidro typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec111315151414141413141110
Data source: San Isidro 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 San Isidro Compares to Other Months

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

This table compares monthly weather conditions in San Isidro, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather22°C (73°F)7 mm (0.3 inches)56%extreme
February Weather23°C (74°F)5 mm (0.2 inches)54%extreme
March Weather24°C (75°F)8 mm (0.3 inches)51%extreme
April Weather26°C (78°F)36 mm (1.4 inches)50%extreme
May Weather25°C (77°F)297 mm (11.7 inches)50%extreme
June Weather24°C (76°F)182 mm (7.2 inches)55%extreme
July Weather24°C (76°F)68 mm (2.7 inches)65%extreme
August Weather24°C (76°F)141 mm (5.6 inches)64%extreme
September Weather24°C (75°F)208 mm (8.2 inches)69%extreme
October Weather23°C (74°F)305 mm (12.0 inches)68%extreme
November Weather23°C (74°F)100 mm (3.9 inches)61%extreme
December Weather22°C (73°F)13 mm (0.5 inches)56%very high

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