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December Weather in San Bartolome, Spain

Last updated: August 27, 2025

In December, the average temperature in San Bartolome, Spain is a pleasant 19°C (66°F). Expect a minimum of 16°C (62°F) and a maximum of 22°C (71°F), making it a comfortable time to explore. You'll experience 10 mm (0.4 in) of precipitation over just 2 days, and a relative humidity of 70% adds a touch of warmth to the air.

December Temperature in San Bartolome

In December in San Bartolome, the average temperature is 19°C (66°F), with maximums reaching up to 22°C (71°F) and minimums dropping as low as 16°C (62°F). This pleasant climate makes it an ideal time for travel and outdoor exploration.

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

The chart illustrates December temperature patterns in San Bartolome, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Bartolome, 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 (62°F).
JanFebMarAprMayJunJulAugSepOctNovDec636363646668697172716865
Data source: Temperature data for San Bartolome 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 Bartolome

In San Bartolome in December, the precipitation amount is 10 mm (0.4 in) over a period of 2 days.

December Precipitation Trends in San Bartolome

The chart displays monthly precipitation patterns in San Bartolome, 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 Bartolome, December typically receives around 10 mm (0.4 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec8178643322101410
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in San Bartolome

In San Bartolome in December humidity is 70%. With an average temperature of 19°C (66°F), this humidity feels like a warm blanket enveloping you, making travel a bit sticky and prompting frequent breaks for water as you explore the sights.

December Average Humidity in San Bartolome

This chart illustrates the average monthly humidity levels in San Bartolome, 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 Bartolome is approximately 70%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec70%74%79%81%80%84%87%89%86%82%75%70%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in San Bartolome

In San Bartolome in December, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in San Bartolome.

Maximum UV Index Levels in San Bartolome for December

The chart shows the monthly maximum UV Index (UVI) for San Bartolome 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 Bartolome typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec569101212111110865
Data source: San Bartolome 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 Bartolome Compares to Other Months

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

This table compares monthly weather conditions in San Bartolome, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather17°C (63°F)8 mm (0.3 inches)70%moderate
February Weather17°C (63°F)17 mm (0.7 inches)74%high
March Weather17°C (63°F)8 mm (0.3 inches)79%very high
April Weather18°C (64°F)6 mm (0.2 inches)81%very high
May Weather19°C (66°F)4 mm (0.1 inches)80%extreme
June Weather20°C (68°F)3 mm (0.1 inches)84%extreme
July Weather21°C (69°F)3 mm (0.1 inches)87%extreme
August Weather22°C (71°F)2 mm (0.1 inches)89%extreme
September Weather22°C (72°F)2 mm (0.1 inches)86%very high
October Weather22°C (71°F)10 mm (0.4 inches)81%very high
November Weather20°C (68°F)14 mm (0.6 inches)75%high
December Weather19°C (66°F)10 mm (0.4 inches)70%moderate

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