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January Weather in San Marcos, Honduras

Last updated: August 23, 2025

In January, the average temperature in San Marcos, Honduras is a pleasant 18°C (65°F), with lows dipping to a comfortable 9°C (49°F) and highs reaching a warm 29°C (84°F). Expect a total precipitation of about 20 mm (0.8 in) over approximately 7 days, accompanied by an average humidity level of 80%.

January Temperature in San Marcos

In January in San Marcos, the average temperature is 18°C (65°F), with maximums reaching 29°C (84°F) and minimums dropping as low as 9°C (49°F). This pleasant weather makes San Marcos an ideal destination for both outdoor activities and sightseeing.

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

The chart illustrates January temperature patterns in San Marcos, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Marcos, January typically has an average temperature of 18°C (65°F), with highs reaching up to 29°C (84°F) and lows dropping to around 9°C (49°F).
JanFebMarAprMayJunJulAugSepOctNovDec646768717170707070696665
Data source: Temperature data for San Marcos 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 Marcos

In San Marcos in January, the precipitation amount is 20 mm (0.8 in) spread over a duration of 7 days.

January Precipitation Trends in San Marcos

The chart displays monthly precipitation patterns in San Marcos, 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 Marcos, January typically receives around 20 mm (0.8 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec201823862953761972853372629725
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in San Marcos

In San Marcos in January, humidity is 80%. With an average temperature of 18°C (65°F), this humidity feels like wandering through a warm, damp blanket, making every step slightly heavy and resulting in a constant sheen of sweat, which can be both refreshing and exhausting for travelers.

January Average Humidity in San Marcos

This chart illustrates the average monthly humidity levels in San Marcos, 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 Marcos is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%72%61%53%51%52%58%63%71%79%79%74%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in San Marcos

In San Marcos 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 Marcos.

Maximum UV Index Levels in San Marcos for January

The chart shows the monthly maximum UV Index (UVI) for San Marcos 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 Marcos typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec11131515141414141313109
Data source: San Marcos 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 Marcos Compares to Other Months

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

This table compares monthly weather conditions in San Marcos, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather18°C (65°F)20 mm (0.8 inches)80%extreme
February Weather19°C (67°F)18 mm (0.7 inches)72%extreme
March Weather20°C (69°F)22 mm (0.9 inches)61%extreme
April Weather22°C (72°F)86 mm (3.4 inches)53%extreme
May Weather22°C (71°F)295 mm (11.6 inches)51%extreme
June Weather21°C (71°F)376 mm (14.8 inches)52%extreme
July Weather21°C (70°F)197 mm (7.8 inches)58%extreme
August Weather21°C (70°F)285 mm (11.2 inches)63%extreme
September Weather21°C (70°F)337 mm (13.3 inches)71%extreme
October Weather21°C (69°F)262 mm (10.3 inches)79%extreme
November Weather19°C (66°F)97 mm (3.8 inches)79%very high
December Weather18°C (65°F)25 mm (1.0 inches)74%very high

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