nomadseason

December Weather in San Diego, Honduras

Last updated: August 23, 2025

In San Diego, Honduras, the average temperature in December hovers around 21°C (70°F), providing a comfortable climate for outdoor activities. Temperatures can range from a low of 13°C (55°F) to a high of 30°C (87°F), ensuring a pleasant variability. However, be prepared for some precipitation, with 31 mm (1.2 in) expected over 9 days of the month. With an average humidity of 56%, you can enjoy a fresh and invigorating atmosphere.

December Temperature in San Diego

In December in San Diego, the average temperature is 21°C (70°F). Maximums can reach 30°C (87°F), while minimums can drop as low as 13°C (55°F). This moderate climate makes San Diego an ideal destination for travelers seeking pleasant weather.

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

The chart illustrates December temperature patterns in San Diego, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Diego, December typically has an average temperature of 21°C (70°F), with highs reaching up to 30°C (87°F) and lows dropping to around 13°C (55°F).
JanFebMarAprMayJunJulAugSepOctNovDec707273777775747575747270
Data source: Temperature data for San Diego generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in San Diego

In San Diego in December, the precipitation amount is 31 mm (1.2 in) over the course of 9 days.

December Precipitation Trends in San Diego

The chart displays monthly precipitation patterns in San Diego, 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 Diego, December typically receives around 31 mm (1.2 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec23202039220180981281802479931
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in San Diego

In San Diego in December, humidity is 56%. With an average temperature of 21°C (70°F), this humidity feels like a warm embrace, making outdoor explorations enjoyable yet slightly sweaty, so it's best to stay hydrated and take breaks in the shade while traveling.

December Average Humidity in San Diego

This chart illustrates the average monthly humidity levels in San Diego, 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 Diego 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 Diego

In San Diego 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 Diego.

Maximum UV Index Levels in San Diego for December

The chart shows the monthly maximum UV Index (UVI) for San Diego 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 Diego typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec111315151414141413131010
Data source: San Diego 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 Diego Compares to Other Months

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

This table compares monthly weather conditions in San Diego, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather21°C (71°F)23 mm (0.9 inches)56%extreme
February Weather22°C (72°F)20 mm (0.8 inches)54%extreme
March Weather23°C (74°F)20 mm (0.8 inches)51%extreme
April Weather25°C (77°F)39 mm (1.5 inches)50%extreme
May Weather25°C (77°F)220 mm (8.7 inches)50%extreme
June Weather24°C (75°F)180 mm (7.1 inches)55%extreme
July Weather23°C (74°F)98 mm (3.9 inches)65%extreme
August Weather24°C (75°F)128 mm (5.0 inches)64%extreme
September Weather24°C (75°F)180 mm (7.1 inches)69%extreme
October Weather23°C (74°F)247 mm (9.7 inches)68%extreme
November Weather22°C (72°F)99 mm (3.9 inches)61%very high
December Weather21°C (70°F)31 mm (1.2 inches)56%very high

Compare San Diego's Climate with Cities Worldwide