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February Weather in San Juan, United States

Last updated: June 24, 2025

In San Juan, United States, the average temperature in February hovers around 0°C (33°F), with a minimum that can plummet to -25°C (-12°F) and a maximum reaching up to 19°C (66°F). During this month, expect 24 mm (0.9 in) of precipitation spread over 5 days, contributing to an average humidity of 79%. Stay prepared for the chilly weather and occasional rain!

February Temperature in San Juan

In February in San Juan, the average temperature is 0°C (33°F). Maximum can reach 19°C (66°F) and minimum can be as low as -25°C (-12°F). Be prepared for a wide range of temperatures if you plan on traveling during this time.

February Weather in San Juan: Daily Temperature Highs, Lows, and Averages

The chart illustrates February temperature patterns in San Juan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Juan, February typically has an average temperature of 0°C (33°F), with highs reaching up to 19°C (66°F) and lows dropping to around -25°C (-12°F).
JanFebMarAprMayJunJulAugSepOctNovDec293242516070727165524132
Data source: Temperature data for San Juan 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.

February Precipitation in San Juan

In San Juan in February, the precipitation amount is 24 mm (0.9 in) over the course of 5 days.

February Precipitation Trends in San Juan

The chart displays monthly precipitation patterns in San Juan, with values for each month alongside February’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how February’s conditions compare to those of other months. In San Juan, February typically receives around 24 mm (0.9 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec242424231815342427272319
Data source: Precipitation data for February generated using information from the Copernicus Climate Change Service.
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February Humidity in San Juan

In San Juan in February humidity is 79%. With an average temperature of 0°C (33°F), this humidity feels like a biting chill that cuts through your clothes, making traveling quite uncomfortable as the dampness clings to your skin and saps your energy.

February Average Humidity in San Juan

This chart illustrates the average monthly humidity levels in San Juan, with February’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In February, average humidity in San Juan is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%79%66%60%57%55%57%65%72%78%81%79%
Data source: Humidity data for February generated using information from the Copernicus Climate Change Service.

February UV Index in San Juan

In San Juan in February, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in San Juan.

Maximum UV Index Levels in San Juan for February

The chart shows the monthly maximum UV Index (UVI) for San Juan in February, 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 February, the maximum UV index in San Juan typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec5810111213131211864
Data source: San Juan February 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 February Weather in San Juan Compares to Other Months

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

This table compares monthly weather conditions in San Juan, showing how February’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)24 mm (0.9 inches)78%moderate
February Weather0°C (33°F)24 mm (0.9 inches)79%very high
March Weather6°C (43°F)24 mm (1.0 inches)66%very high
April Weather11°C (51°F)22 mm (0.9 inches)60%extreme
May Weather16°C (60°F)18 mm (0.7 inches)57%extreme
June Weather21°C (70°F)15 mm (0.6 inches)55%extreme
July Weather22°C (73°F)34 mm (1.3 inches)56%extreme
August Weather21°C (71°F)23 mm (0.9 inches)65%extreme
September Weather18°C (65°F)27 mm (1.0 inches)72%extreme
October Weather11°C (52°F)27 mm (1.1 inches)78%very high
November Weather5°C (41°F)23 mm (0.9 inches)81%high
December Weather0°C (32°F)19 mm (0.7 inches)79%moderate

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