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March Weather in San Sebastian, Puerto Rico

Last updated: August 31, 2025

In March, the average temperature in San Sebastian, Puerto Rico hovers around 24°C (76°F), providing a pleasant climate. You can expect minimum temperatures of 19°C (67°F) and highs reaching up to 30°C (85°F). However, be prepared for some rain, as precipitation averages 68 mm (2.7 in) over approximately 15 days, contributing to an average humidity of 74%. Stay comfortable and enjoy the diverse weather!

March Temperature in San Sebastian

In March in San Sebastian, the average temperature is 24°C (76°F). Maximums can reach 30°C (85°F), and minimums can be as low as 19°C (67°F). This pleasant climate makes San Sebastian an ideal destination for travelers seeking comfortable weather.

March Weather in San Sebastian: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in San Sebastian, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Sebastian, March typically has an average temperature of 24°C (76°F), with highs reaching up to 30°C (85°F) and lows dropping to around 19°C (67°F).
JanFebMarAprMayJunJulAugSepOctNovDec767675777880818180797877
Data source: Temperature data for San Sebastian 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.

March Precipitation in San Sebastian

In San Sebastian in March, the total precipitation amount is 68 mm (2.7 in) recorded over a span of 15 days.

March Precipitation Trends in San Sebastian

The chart displays monthly precipitation patterns in San Sebastian, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In San Sebastian, March typically receives around 68 mm (2.7 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec2233687295851031061921229828
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in San Sebastian

In San Sebastian in March, humidity is 74%. With an average temperature of 24°C (76°F), this humidity feels like a warm, heavy blanket wrapping around you, making travel a bit sticky and requiring plenty of hydration as you explore.

March Average Humidity in San Sebastian

This chart illustrates the average monthly humidity levels in San Sebastian, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in San Sebastian is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%75%74%75%75%77%80%80%79%78%78%76%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in San Sebastian

In San Sebastian in March, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in San Sebastian.

Maximum UV Index Levels in San Sebastian for March

The chart shows the monthly maximum UV Index (UVI) for San Sebastian in March, 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 March, the maximum UV index in San Sebastian typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec911131314131313131298
Data source: San Sebastian March 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 March Weather in San Sebastian Compares to Other Months

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

This table compares monthly weather conditions in San Sebastian, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (76°F)22 mm (0.9 inches)76%very high
February Weather24°C (76°F)33 mm (1.3 inches)75%extreme
March Weather24°C (76°F)68 mm (2.7 inches)74%extreme
April Weather25°C (77°F)72 mm (2.8 inches)75%extreme
May Weather26°C (79°F)95 mm (3.7 inches)75%extreme
June Weather27°C (80°F)85 mm (3.4 inches)77%extreme
July Weather27°C (81°F)103 mm (4.1 inches)80%extreme
August Weather27°C (81°F)106 mm (4.2 inches)80%extreme
September Weather27°C (80°F)192 mm (7.6 inches)79%extreme
October Weather26°C (79°F)122 mm (4.8 inches)78%extreme
November Weather26°C (78°F)98 mm (3.9 inches)78%very high
December Weather25°C (77°F)28 mm (1.1 inches)76%very high

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