December Weather in Oceano, United States

Last updated: June 24, 2025

In December, the average temperature in Oceano, United States hovers around 12°C (54°F). Expect a minimum of 5°C (41°F) and delightful highs of up to 23°C (74°F). This month sees about 72 mm (2.8 in) of precipitation over 6 days, with an average humidity level of 76%.

December Temperature in Oceano

In December in Oceano, the average temperature is 12°C (54°F). The maximum can reach 23°C (74°F) and the minimum can be as low as 5°C (41°F). It's a great time to visit for those who enjoy mild weather and outdoor activities.

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

The chart illustrates December temperature patterns in Oceano, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Oceano, December typically has an average temperature of 12°C (54°F), with highs reaching up to 23°C (74°F) and lows dropping to around 5°C (41°F).

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

December Precipitation in Oceano

In Oceano in December, the total precipitation amount is 72 mm (2.8 in) over the course of 6 days.

December Precipitation Trends in Oceano

The chart displays monthly precipitation patterns in Oceano, 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 Oceano, December typically receives around 72 mm (2.8 inches) of precipitation spread over approximately 6 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 Oceano

In Oceano in December, humidity is 76%. With an average temperature of 12°C (54°F), this humidity feels like a heavy blanket enveloping you, making outdoor activities a bit uncomfortable and requiring frequent hydration while exploring.

December Average Humidity in Oceano

This chart illustrates the average monthly humidity levels in Oceano, 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 Oceano is approximately 76%, 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 Oceano

In Oceano in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Oceano, you can check the information here.

Maximum UV Index Levels in Oceano for December

The chart shows the monthly maximum UV Index (UVI) for Oceano 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 Oceano typically reaches 3, which falls under the moderate exposure category.

Data source: Oceano 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 Oceano Compares to Other Months

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

This table compares monthly weather conditions in Oceano, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	12°C (54°F)	100 mm (3.9 inches)	80%	moderate
February Weather	12°C (53°F)	81 mm (3.2 inches)	83%	high
March Weather	12°C (54°F)	88 mm (3.5 inches)	80%	very high
April Weather	13°C (57°F)	24 mm (1.0 inches)	76%	very high
May Weather	14°C (58°F)	12 mm (0.5 inches)	75%	extreme
June Weather	16°C (61°F)	2 mm (0.1 inches)	74%	extreme
July Weather	18°C (64°F)	1 mm (0.0 inches)	75%	extreme
August Weather	18°C (65°F)	1 mm (0.0 inches)	72%	extreme
September Weather	18°C (64°F)	1 mm (0.1 inches)	70%	very high
October Weather	17°C (63°F)	10 mm (0.4 inches)	70%	high
November Weather	14°C (58°F)	33 mm (1.3 inches)	74%	moderate
December Weather	12°C (54°F)	72 mm (2.8 inches)	76%	moderate