January Weather in San Antonio, Belize

Last updated: August 22, 2025

In January, the average temperature in San Antonio, Belize is a pleasant 23°C (73°F), with a minimum of 14°C (58°F) and a maximum reaching up to 32°C (90°F). Expect approximately 68 mm (2.7 in) of precipitation spread over 14 days, accompanied by a high average humidity of 85%. Stay prepared for a mix of warm and wet conditions!

January Temperature in San Antonio

In January in San Antonio, the average temperature is 23°C (73°F). Maximums can reach 32°C (90°F) and minimums can be as low as 14°C (58°F). It's an ideal time for traveling, as you can enjoy pleasant weather while exploring the area's attractions.

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

The chart illustrates January temperature patterns in San Antonio, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Antonio, January typically has an average temperature of 23°C (73°F), with highs reaching up to 32°C (90°F) and lows dropping to around 14°C (58°F).
JanFebMarAprMayJunJulAugSepOctNovDec737577808281818181797674
Data source: Temperature data for San Antonio 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 Antonio

In San Antonio in January, the precipitation amount is 68 mm (2.7 in) distributed over a period of 14 days.

January Precipitation Trends in San Antonio

The chart displays monthly precipitation patterns in San Antonio, 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 Antonio, January typically receives around 68 mm (2.7 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec6850655710617212213013921913965
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in San Antonio

In San Antonio in January, humidity is 85%. With an average temperature of 23°C (73°F), this humidity feels like a warm, enveloping blanket, making outdoor activities a bit strenuous and prompting frequent breaks for hydration.

January Average Humidity in San Antonio

This chart illustrates the average monthly humidity levels in San Antonio, 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 Antonio is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%78%67%62%62%63%66%73%82%86%87%88%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in San Antonio

In San Antonio 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 Antonio.

Maximum UV Index Levels in San Antonio for January

The chart shows the monthly maximum UV Index (UVI) for San Antonio 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 Antonio typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec10121414141313141312109
Data source: San Antonio 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 Antonio Compares to Other Months

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

This table compares monthly weather conditions in San Antonio, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather23°C (73°F)68 mm (2.7 inches)85%very high
February Weather24°C (76°F)50 mm (2.0 inches)78%extreme
March Weather25°C (77°F)65 mm (2.5 inches)67%extreme
April Weather27°C (81°F)57 mm (2.3 inches)62%extreme
May Weather28°C (82°F)106 mm (4.2 inches)62%extreme
June Weather27°C (81°F)172 mm (6.8 inches)63%extreme
July Weather27°C (81°F)122 mm (4.8 inches)66%extreme
August Weather27°C (81°F)130 mm (5.1 inches)73%extreme
September Weather27°C (81°F)139 mm (5.5 inches)82%extreme
October Weather26°C (79°F)219 mm (8.6 inches)86%extreme
November Weather24°C (76°F)138 mm (5.5 inches)87%very high
December Weather23°C (74°F)65 mm (2.6 inches)87%very high

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