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January Weather in San Jose, Panama

Last updated: August 27, 2025

In January, the average temperature in San Jose, Panama is a pleasant 23°C (74°F), with a minimum of 18°C (64°F) and a maximum of 28°C (84°F). Expect 102 mm (4.0 in) of precipitation spread over 21 days, and a comfortable average humidity of 72%. Enjoy the mild weather while staying prepared for occasional showers!

January Temperature in San Jose

In January in San Jose, the average temperature is 23°C (74°F). The maximum can reach 28°C (84°F), while the minimum can drop to as low as 18°C (64°F). This mild and pleasant climate makes it an ideal time for travelers to explore the sights and enjoy outdoor activities.

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

The chart illustrates January temperature patterns in San Jose, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Jose, January typically has an average temperature of 23°C (74°F), with highs reaching up to 28°C (84°F) and lows dropping to around 18°C (64°F).
JanFebMarAprMayJunJulAugSepOctNovDec737374757575757575747474
Data source: Temperature data for San Jose 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 Jose

In San Jose in January, the total precipitation amount is 102 mm (4.0 in) spread over 21 days.

January Precipitation Trends in San Jose

The chart displays monthly precipitation patterns in San Jose, 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 Jose, January typically receives around 102 mm (4.0 inches) of precipitation spread over approximately 21 days.
JanFebMarAprMayJunJulAugSepOctNovDec1027981158374326326319401413344160
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in San Jose

In San Jose in January humidity is 72%. With an average temperature of 23°C (74°F), this humidity feels like a warm, enveloping blanket that clings to the skin, making outdoor activities a challenge but offering a refreshing atmosphere for leisurely strolls in the shade.

January Average Humidity in San Jose

This chart illustrates the average monthly humidity levels in San Jose, 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 Jose is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec72%71%69%70%73%90%89%87%87%86%86%79%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in San Jose

In San Jose in January, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in San Jose.

Maximum UV Index Levels in San Jose for January

The chart shows the monthly maximum UV Index (UVI) for San Jose 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 Jose typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec121314151513131314141210
Data source: San Jose 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 Jose Compares to Other Months

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

This table compares monthly weather conditions in San Jose, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather23°C (74°F)102 mm (4.0 inches)72%extreme
February Weather23°C (74°F)79 mm (3.1 inches)71%extreme
March Weather23°C (74°F)81 mm (3.2 inches)69%extreme
April Weather24°C (76°F)158 mm (6.2 inches)70%extreme
May Weather24°C (76°F)374 mm (14.7 inches)73%extreme
June Weather24°C (76°F)326 mm (12.8 inches)90%extreme
July Weather24°C (75°F)326 mm (12.8 inches)88%extreme
August Weather24°C (75°F)319 mm (12.6 inches)87%extreme
September Weather24°C (75°F)401 mm (15.8 inches)87%extreme
October Weather24°C (75°F)413 mm (16.2 inches)86%extreme
November Weather23°C (74°F)344 mm (13.5 inches)86%extreme
December Weather23°C (74°F)160 mm (6.3 inches)79%very high

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