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October Weather in San Sebastian, Puerto Rico

Last updated: August 31, 2025

In October, the average temperature in San Sebastian, Puerto Rico is a warm 26°C (79°F), with a cozy minimum of 23°C (73°F) and a sizzling maximum of 31°C (89°F). Expect some showers, as precipitation reaches 122 mm (4.8 in) over 20 days. With an average humidity of 78%, it's a perfect time to enjoy the tropical vibes!

October Temperature in San Sebastian

In October in San Sebastian, the average temperature is a pleasant 26°C (79°F). The maximum can reach a warm 31°C (89°F), while the minimum can drop to a comfortable 23°C (73°F). Overall, it’s an ideal time for outdoor activities and exploring the vibrant surroundings.

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

The chart illustrates October 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, October typically has an average temperature of 26°C (79°F), with highs reaching up to 31°C (89°F) and lows dropping to around 23°C (73°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.

October Precipitation in San Sebastian

In San Sebastian in October, the precipitation amount is 122 mm (4.8 in) over the course of 20 days.

October Precipitation Trends in San Sebastian

The chart displays monthly precipitation patterns in San Sebastian, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In San Sebastian, October typically receives around 122 mm (4.8 inches) of precipitation spread over approximately 20 days.
JanFebMarAprMayJunJulAugSepOctNovDec2233687295851031061921229828
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in San Sebastian

In San Sebastian in October, humidity is 78%. With an average temperature of 26°C (79°F), this humidity feels like a heavy blanket wrapping around you, making travel a bit sluggish as the air hangs thick, leaving you in need of frequent breaks to hydrate and find shade.

October Average Humidity in San Sebastian

This chart illustrates the average monthly humidity levels in San Sebastian, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in San Sebastian is approximately 78%, 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 October generated using information from the Copernicus Climate Change Service.

October UV Index in San Sebastian

In San Sebastian in October, 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 Sebastian.

Maximum UV Index Levels in San Sebastian for October

The chart shows the monthly maximum UV Index (UVI) for San Sebastian in October, 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 October, the maximum UV index in San Sebastian typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec911131314131313131298
Data source: San Sebastian October 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 October 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 October’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 October’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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