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January Weather in San Martin, Mexico

Last updated: August 27, 2025

In January, the average temperature in San Martin, Mexico hovers around 19°C (66°F), making it a pleasant time to visit. Expect a comfortable range, with minimums dipping to 9°C (48°F) and maximums soaring up to 29°C (85°F). While you're out exploring, be prepared for a little moisture, as 11 mm (0.4 in) of precipitation can occur over 1 day. On top of that, you’ll experience an average humidity of 65%, perfect for enjoying the stunning landscapes.

January Temperature in San Martin

In January in San Martin, the average temperature is 19°C (66°F). Maximum can reach 29°C (85°F) and minimum can be as low as 9°C (48°F). This makes it an ideal time for traveling, offering pleasant weather for outdoor activities and sightseeing.

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

The chart illustrates January temperature patterns in San Martin, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Martin, January typically has an average temperature of 19°C (66°F), with highs reaching up to 29°C (85°F) and lows dropping to around 9°C (48°F).
JanFebMarAprMayJunJulAugSepOctNovDec656770717269696968696765
Data source: Temperature data for San Martin 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 Martin

In San Martin in January, the precipitation amount is 11 mm (0.4 in) over the course of one day.

January Precipitation Trends in San Martin

The chart displays monthly precipitation patterns in San Martin, 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 Martin, January typically receives around 11 mm (0.4 inches) of precipitation spread over approximately 1 days.
JanFebMarAprMayJunJulAugSepOctNovDec1147231163543394694182325415
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in San Martin

In San Martin in January humidity is 65%. With an average temperature of 19°C (66°F), this humidity feels like a warm embrace, making outdoor activities refreshing but slightly sticky, so it's advisable to stay hydrated and take breaks in shaded areas while exploring.

January Average Humidity in San Martin

This chart illustrates the average monthly humidity levels in San Martin, 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 Martin is approximately 65%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec65%61%59%62%73%78%79%82%82%79%72%70%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in San Martin

In San Martin in January, 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 Martin.

Maximum UV Index Levels in San Martin for January

The chart shows the monthly maximum UV Index (UVI) for San Martin 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 Martin typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec10121414141414141412109
Data source: San Martin 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 Martin Compares to Other Months

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

This table compares monthly weather conditions in San Martin, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather19°C (66°F)11 mm (0.4 inches)65%very high
February Weather20°C (67°F)4 mm (0.1 inches)61%extreme
March Weather21°C (70°F)7 mm (0.3 inches)59%extreme
April Weather22°C (71°F)23 mm (0.9 inches)62%extreme
May Weather22°C (72°F)116 mm (4.6 inches)73%extreme
June Weather21°C (69°F)354 mm (13.9 inches)78%extreme
July Weather21°C (69°F)339 mm (13.3 inches)79%extreme
August Weather20°C (69°F)469 mm (18.5 inches)82%extreme
September Weather20°C (69°F)418 mm (16.5 inches)82%extreme
October Weather20°C (69°F)232 mm (9.1 inches)79%extreme
November Weather20°C (68°F)54 mm (2.1 inches)72%very high
December Weather19°C (66°F)15 mm (0.6 inches)70%very high

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