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December Weather in Goleta, United States

Last updated: June 24, 2025

In December, the average temperature in Goleta, United States is a comfortable 12°C (54°F). Expect a minimum chill of 3°C (38°F) on cooler days, while basking in a maximum warmth of 24°C (75°F) during peak times. Be prepared for some showers, as 62 mm (2.5 in) of precipitation may fall over 6 days. With an average humidity of 76%, the atmosphere will feel pleasantly refreshing.

December Temperature in Goleta

In December in Goleta, the average temperature is 12°C (54°F). The maximum can reach 24°C (75°F), while the minimum can drop to as low as 3°C (38°F). This makes Goleta a pleasant destination for travelers seeking mild weather during this time of year.

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

The chart illustrates December temperature patterns in Goleta, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Goleta, December typically has an average temperature of 12°C (54°F), with highs reaching up to 24°C (75°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec545354596267717269655954
Data source: Temperature data for Goleta 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 Goleta

In Goleta in December, the precipitation amount is 62 mm (2.5 in) over the course of 6 days.

December Precipitation Trends in Goleta

The chart displays monthly precipitation patterns in Goleta, 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 Goleta, December typically receives around 62 mm (2.5 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec93818821124222102362
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Goleta

In Goleta 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 Goleta

This chart illustrates the average monthly humidity levels in Goleta, 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 Goleta is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%82%76%68%58%52%46%39%48%59%72%76%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Goleta

In Goleta in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Goleta for better planning.

Maximum UV Index Levels in Goleta for December

The chart shows the monthly maximum UV Index (UVI) for Goleta 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 Goleta typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101111121110754
Data source: Goleta 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 Goleta Compares to Other Months

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

This table compares monthly weather conditions in Goleta, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather12°C (54°F)93 mm (3.7 inches)78%moderate
February Weather12°C (53°F)81 mm (3.2 inches)82%high
March Weather12°C (55°F)88 mm (3.5 inches)75%very high
April Weather15°C (60°F)21 mm (0.8 inches)68%very high
May Weather16°C (62°F)12 mm (0.5 inches)57%extreme
June Weather19°C (67°F)4 mm (0.1 inches)52%extreme
July Weather22°C (72°F)2 mm (0.1 inches)46%extreme
August Weather22°C (72°F)2 mm (0.1 inches)39%extreme
September Weather21°C (70°F)2 mm (0.1 inches)48%very high
October Weather18°C (65°F)10 mm (0.4 inches)59%high
November Weather15°C (60°F)23 mm (0.9 inches)72%moderate
December Weather12°C (54°F)62 mm (2.5 inches)76%moderate

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