September Weather in San Onofre, Colombia

Last updated: August 23, 2025

In San Onofre, Colombia, the average temperature in September hovers around 27°C (81°F), creating a warm and inviting climate. The temperatures can dip to a comfortable 24°C (75°F) at their lowest, while peaking at a delightful 32°C (90°F). However, be prepared for some rain—211 mm (8.3 in) over 28 days adds a refreshing touch to the air. With an average humidity of 87%, the atmosphere can feel quite moist, so don't forget your umbrella!

September Temperature in San Onofre

In September in San Onofre, the average temperature is 27°C (81°F), with maximums reaching up to 32°C (90°F) and minimums dropping as low as 24°C (75°F). This warm weather makes it an ideal time for outdoor activities and exploring what San Onofre has to offer.

September Weather in San Onofre: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in San Onofre, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Onofre, September typically has an average temperature of 27°C (81°F), with highs reaching up to 32°C (90°F) and lows dropping to around 24°C (75°F).
JanFebMarAprMayJunJulAugSepOctNovDec818282828182828181818181
Data source: Temperature data for San Onofre 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.

September Precipitation in San Onofre

In San Onofre in September, the precipitation amount is 211 mm (8.3 in) spread over 28 days.

September Precipitation Trends in San Onofre

The chart displays monthly precipitation patterns in San Onofre, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In San Onofre, September typically receives around 211 mm (8.3 inches) of precipitation spread over approximately 28 days.
JanFebMarAprMayJunJulAugSepOctNovDec2183611022320819821821121916749
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in San Onofre

In San Onofre in September, humidity is 87%. With an average temperature of 27°C (81°F), this humidity feels like walking through a warm, damp blanket, making traveling feel heavy and exhausting.

September Average Humidity in San Onofre

This chart illustrates the average monthly humidity levels in San Onofre, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in San Onofre is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec70%67%65%67%79%87%88%87%87%86%86%80%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in San Onofre

In San Onofre in September, 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 Onofre.

Maximum UV Index Levels in San Onofre for September

The chart shows the monthly maximum UV Index (UVI) for San Onofre in September, 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 September, the maximum UV index in San Onofre typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec111213151413131313131110
Data source: San Onofre September 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 September Weather in San Onofre Compares to Other Months

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

This table compares monthly weather conditions in San Onofre, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather27°C (82°F)21 mm (0.8 inches)70%extreme
February Weather28°C (83°F)8 mm (0.3 inches)67%extreme
March Weather28°C (82°F)36 mm (1.4 inches)65%extreme
April Weather28°C (82°F)110 mm (4.3 inches)67%extreme
May Weather27°C (82°F)223 mm (8.8 inches)79%extreme
June Weather28°C (82°F)208 mm (8.2 inches)87%extreme
July Weather28°C (82°F)198 mm (7.8 inches)88%extreme
August Weather27°C (82°F)218 mm (8.6 inches)87%extreme
September Weather27°C (81°F)211 mm (8.3 inches)87%extreme
October Weather27°C (81°F)219 mm (8.6 inches)86%extreme
November Weather27°C (81°F)167 mm (6.6 inches)86%extreme
December Weather27°C (82°F)49 mm (1.9 inches)80%very high

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