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January Weather in San Diego, Honduras

Last updated: August 23, 2025

In January, the average temperature in San Diego, Honduras hovers around 21°C (71°F). Expect temperatures to range from a cool 11°C (53°F) at night to a warm 32°C (90°F) during the day. With an average humidity of 56%, you might experience a few sprinkles, as the area typically sees about 23 mm (0.9 in) of precipitation over 6 days. Enjoy the mild climate!

January Temperature in San Diego

In January in San Diego, the average temperature is 21°C (71°F). Maximums can reach 32°C (90°F) and minimums can be as low as 11°C (53°F). This mild climate makes it an ideal destination for various outdoor activities and exploring the local attractions.

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

The chart illustrates January 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, January typically has an average temperature of 21°C (71°F), with highs reaching up to 32°C (90°F) and lows dropping to around 11°C (53°F).
JanFebMarAprMayJunJulAugSepOctNovDec707273777775747575747270
Data source: Temperature data for San Diego 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.

January Precipitation in San Diego

In San Diego in January, the precipitation amount is 23 mm (0.9 in) spread over 6 days.

January Precipitation Trends in San Diego

The chart displays monthly precipitation patterns in San Diego, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In San Diego, January typically receives around 23 mm (0.9 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec23202039220180981281802479931
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in San Diego

In San Diego in January, humidity is 56%. With an average temperature of 21°C (71°F), this humidity feels like a warm embrace, making it ideal for leisurely strolls and outdoor exploration, albeit with a slight stickiness that may encourage travelers to seek shade during the midday sun.

January Average Humidity in San Diego

This chart illustrates the average monthly humidity levels in San Diego, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, 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 January generated using information from the Copernicus Climate Change Service.

January UV Index in San Diego

In San Diego in January, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in San Diego.

Maximum UV Index Levels in San Diego for January

The chart shows the monthly maximum UV Index (UVI) for San Diego in January, 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 January, the maximum UV index in San Diego typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec111315151414141413131010
Data source: San Diego January 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 January 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 January’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 January’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

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