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May Weather in San Jose, Panama

Last updated: August 27, 2025

In May, the average temperature in San Jose, Panama hovers around 27°C (80°F). Expect a comfortable range where the minimum temperature dips to 23°C (73°F) and the maximum can soar to 33°C (92°F). However, be prepared for some rain; the region receives an average precipitation of 262 mm (10.3 in) spread over 29 days, contributing to an average humidity of 73%.

May Temperature in San Jose

In May in San Jose, the average temperature is 27°C (80°F). Maximums can reach 33°C (92°F), while minimums can be as low as 23°C (73°F). It's an ideal time for travelers seeking warm weather and plenty of sunshine.

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

The chart illustrates May 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, May typically has an average temperature of 27°C (80°F), with highs reaching up to 33°C (92°F) and lows dropping to around 23°C (73°F).
JanFebMarAprMayJunJulAugSepOctNovDec797980818079797979797879
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.

May Precipitation in San Jose

In San Jose in May, the total precipitation amount is 262 mm (10.3 in), occurring over a span of 29 days.

May Precipitation Trends in San Jose

The chart displays monthly precipitation patterns in San Jose, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In San Jose, May typically receives around 262 mm (10.3 inches) of precipitation spread over approximately 29 days.
JanFebMarAprMayJunJulAugSepOctNovDec2914207126226827025125327026290
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in San Jose

In San Jose in May humidity is 73%. With an average temperature of 27°C (80°F), this humidity feels like a warm, enveloping blanket that can make traveling feel sticky and slightly uncomfortable, prompting frequent breaks in the shade and plenty of hydration.

May Average Humidity in San Jose

This chart illustrates the average monthly humidity levels in San Jose, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in San Jose is approximately 73%, 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 May generated using information from the Copernicus Climate Change Service.

May UV Index in San Jose

In San Jose in May, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in San Jose.

Maximum UV Index Levels in San Jose for May

The chart shows the monthly maximum UV Index (UVI) for San Jose in May, 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 May, the maximum UV index in San Jose typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec121314151513131313131210
Data source: San Jose May 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 May 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 May’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 May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (79°F)29 mm (1.2 inches)72%extreme
February Weather26°C (80°F)14 mm (0.5 inches)71%extreme
March Weather27°C (80°F)20 mm (0.8 inches)69%extreme
April Weather27°C (81°F)71 mm (2.8 inches)70%extreme
May Weather27°C (80°F)262 mm (10.3 inches)73%extreme
June Weather26°C (80°F)268 mm (10.5 inches)90%extreme
July Weather26°C (80°F)270 mm (10.6 inches)88%extreme
August Weather26°C (80°F)251 mm (9.9 inches)87%extreme
September Weather26°C (79°F)253 mm (10.0 inches)87%extreme
October Weather26°C (79°F)270 mm (10.6 inches)86%extreme
November Weather26°C (79°F)262 mm (10.3 inches)86%extreme
December Weather26°C (79°F)90 mm (3.6 inches)79%very high

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