December Weather in Siuna, Nicaragua

Last updated: August 31, 2025

In Siuna, Nicaragua, the average temperature in December is a pleasant 24°C (75°F), with a minimum of 17°C (64°F) and a maximum reaching 30°C (86°F). Expect 67 mm (2.7 in) of precipitation spread over 22 days, contributing to an average humidity of 69%. Whether you're planning outdoor activities or cozy indoor moments, this month offers a delightful climate to enjoy!

December Temperature in Siuna

In December in Siuna, the average temperature is 24°C (75°F). Maximums can reach 30°C (86°F), while minimums can drop to as low as 17°C (64°F). This pleasant climate makes Siuna an ideal destination for travelers looking to enjoy mild and comfortable weather.

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

The chart illustrates December temperature patterns in Siuna, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Siuna, December typically has an average temperature of 24°C (75°F), with highs reaching up to 30°C (86°F) and lows dropping to around 17°C (64°F).

Data source: Temperature data for Siuna generated using information from the Copernicus Climate Change Service.

December Precipitation in Siuna

In Siuna in December, the precipitation amount is 67 mm (2.7 in) over the course of 22 days.

December Precipitation Trends in Siuna

The chart displays monthly precipitation patterns in Siuna, 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 Siuna, December typically receives around 67 mm (2.7 inches) of precipitation spread over approximately 22 days.

Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

December Humidity in Siuna

In Siuna in December, humidity is 69%. With an average temperature of 24°C (75°F), this humidity feels like a warm embrace, making it both refreshing and somewhat muggy for traveling.

December Average Humidity in Siuna

This chart illustrates the average monthly humidity levels in Siuna, 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 Siuna is approximately 69%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Siuna

In Siuna in December, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Siuna.

Maximum UV Index Levels in Siuna for December

The chart shows the monthly maximum UV Index (UVI) for Siuna 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 Siuna typically reaches 9, which falls under the very high exposure category.

Data source: Siuna 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 Siuna Compares to Other Months

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

This table compares monthly weather conditions in Siuna, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	24°C (75°F)	49 mm (1.9 inches)	68%	very high
February Weather	24°C (76°F)	50 mm (2.0 inches)	68%	extreme
March Weather	25°C (77°F)	61 mm (2.4 inches)	67%	extreme
April Weather	26°C (80°F)	57 mm (2.2 inches)	67%	extreme
May Weather	26°C (80°F)	259 mm (10.2 inches)	68%	extreme
June Weather	26°C (79°F)	240 mm (9.4 inches)	73%	extreme
July Weather	26°C (78°F)	189 mm (7.4 inches)	76%	extreme
August Weather	25°C (78°F)	187 mm (7.3 inches)	73%	extreme
September Weather	26°C (79°F)	183 mm (7.2 inches)	72%	extreme
October Weather	25°C (78°F)	244 mm (9.6 inches)	71%	extreme
November Weather	25°C (77°F)	177 mm (7.0 inches)	71%	very high
December Weather	24°C (75°F)	67 mm (2.7 inches)	69%	very high